./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da0196598caa8f7971f5c05318e98ec0e7e9ad277348cd08159b1fad4465fe6c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:55:11,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:55:11,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:55:11,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:55:11,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:55:11,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:55:11,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:55:11,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:55:11,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:55:11,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:55:11,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:55:11,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:55:11,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:55:11,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:55:11,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:55:11,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:55:11,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:55:11,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:55:11,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:55:11,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:55:11,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:55:11,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:55:11,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:55:11,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:55:11,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:55:11,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:55:11,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:55:11,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:55:11,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:55:11,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:55:11,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:55:11,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:55:11,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:55:11,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:55:11,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:55:11,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:55:11,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:55:11,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:55:11,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:55:11,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:55:11,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:55:11,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:55:11,799 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:55:11,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:55:11,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:55:11,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:55:11,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:55:11,803 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:55:11,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:55:11,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:55:11,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:55:11,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:55:11,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:55:11,813 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:55:11,813 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:55:11,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:55:11,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:55:11,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:55:11,814 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:55:11,815 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:55:11,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:55:11,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:11,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:55:11,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:55:11,816 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:55:11,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:55:11,817 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_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da0196598caa8f7971f5c05318e98ec0e7e9ad277348cd08159b1fad4465fe6c [2021-11-23 15:55:12,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:55:12,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:55:12,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:55:12,159 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:55:12,160 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:55:12,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2021-11-23 15:55:12,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/data/8d5798b84/1ccc53f2f04f4aeb8fc9cf2545eb297d/FLAG47ab253aa [2021-11-23 15:55:12,859 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:55:12,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/sv-benchmarks/c/list-ext-properties/test-0158_1-3.i [2021-11-23 15:55:12,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/data/8d5798b84/1ccc53f2f04f4aeb8fc9cf2545eb297d/FLAG47ab253aa [2021-11-23 15:55:13,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/data/8d5798b84/1ccc53f2f04f4aeb8fc9cf2545eb297d [2021-11-23 15:55:13,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:55:13,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:55:13,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:13,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:55:13,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:55:13,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7698923f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13, skipping insertion in model container [2021-11-23 15:55:13,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:55:13,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:55:13,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:13,484 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:55:13,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:13,557 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:55:13,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13 WrapperNode [2021-11-23 15:55:13,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:13,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:13,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:55:13,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:55:13,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,602 INFO L137 Inliner]: procedures = 124, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2021-11-23 15:55:13,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:13,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:55:13,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:55:13,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:55:13,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:55:13,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:55:13,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:55:13,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:55:13,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:13" (1/1) ... [2021-11-23 15:55:13,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:55:13,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:55:13,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:55:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:55:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:55:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:55:13,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:55:13,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:55:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:55:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:55:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:55:13,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:55:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:55:13,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:55:13,847 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:55:13,849 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:55:14,198 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:55:14,225 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:55:14,225 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 15:55:14,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:14 BoogieIcfgContainer [2021-11-23 15:55:14,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:55:14,236 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:55:14,237 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:55:14,248 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:55:14,249 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:14" (1/1) ... [2021-11-23 15:55:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:55:14,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:14,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 39 states and 40 transitions. [2021-11-23 15:55:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-11-23 15:55:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:55:14,362 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:14,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 38 states and 39 transitions. [2021-11-23 15:55:14,597 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2021-11-23 15:55:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:55:14,598 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:14,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:14,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 37 states and 38 transitions. [2021-11-23 15:55:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2021-11-23 15:55:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:55:14,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:14,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:14,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 36 states and 37 transitions. [2021-11-23 15:55:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2021-11-23 15:55:14,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:55:14,834 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:14,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 35 states and 36 transitions. [2021-11-23 15:55:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-11-23 15:55:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:55:15,059 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:15,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:15,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 34 states and 35 transitions. [2021-11-23 15:55:15,177 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-11-23 15:55:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:55:15,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:15,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:15,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2021-11-23 15:55:15,462 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-23 15:55:15,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:55:15,463 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:15,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 32 states and 33 transitions. [2021-11-23 15:55:15,865 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-11-23 15:55:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:55:15,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:15,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2021-11-23 15:55:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-11-23 15:55:15,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:55:15,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:15,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 30 states and 31 transitions. [2021-11-23 15:55:16,002 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-11-23 15:55:16,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:55:16,002 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2021-11-23 15:55:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-11-23 15:55:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:55:16,077 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2021-11-23 15:55:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-11-23 15:55:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:55:16,146 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2021-11-23 15:55:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-11-23 15:55:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:55:16,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2021-11-23 15:55:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-11-23 15:55:16,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:55:16,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 30 states and 32 transitions. [2021-11-23 15:55:16,682 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-11-23 15:55:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:55:16,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 27 states and 28 transitions. [2021-11-23 15:55:16,721 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-11-23 15:55:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:55:16,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:16,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:17,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 29 states and 31 transitions. [2021-11-23 15:55:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-11-23 15:55:17,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:55:17,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:17,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-23 15:55:18,582 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-23 15:55:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 15:55:18,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:18,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:20,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-11-23 15:55:20,782 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-11-23 15:55:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 15:55:20,783 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:20,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-23 15:55:21,385 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-23 15:55:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:55:21,386 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:21,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:24,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2021-11-23 15:55:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-11-23 15:55:24,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:55:24,006 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:24,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:24,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2021-11-23 15:55:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-11-23 15:55:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 15:55:24,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:24,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:27,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 34 states and 36 transitions. [2021-11-23 15:55:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-11-23 15:55:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 15:55:27,485 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:27,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-23 15:55:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-23 15:55:28,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 15:55:28,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:28,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:31,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-11-23 15:55:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-11-23 15:55:31,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 15:55:31,963 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:31,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:55:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:55:32,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:55:32,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-23 15:55:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-23 15:55:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 15:55:32,807 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:55:32,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:55:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:55:32,826 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 15:55:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:55:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:55:32,880 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 15:55:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:55:32,924 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 26 iterations. [2021-11-23 15:55:32,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:55:32 ImpRootNode [2021-11-23 15:55:32,983 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:55:32,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:55:32,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:55:32,984 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:55:32,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:14" (3/4) ... [2021-11-23 15:55:32,986 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 15:55:33,055 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:55:33,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:55:33,056 INFO L158 Benchmark]: Toolchain (without parser) took 19935.18ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 95.8MB in the beginning and 168.0MB in the end (delta: -72.2MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,070 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 88.1MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:55:33,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.96ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 99.1MB in the end (delta: -3.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,072 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.76ms. Allocated memory is still 130.0MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,072 INFO L158 Benchmark]: Boogie Preprocessor took 33.57ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 96.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,073 INFO L158 Benchmark]: RCFGBuilder took 597.76ms. Allocated memory is still 130.0MB. Free memory was 96.1MB in the beginning and 83.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,074 INFO L158 Benchmark]: CodeCheck took 18746.64ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 83.1MB in the beginning and 170.1MB in the end (delta: -87.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,074 INFO L158 Benchmark]: Witness Printer took 71.87ms. Allocated memory is still 226.5MB. Free memory was 170.1MB in the beginning and 168.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:33,079 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, 39 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 18.6s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1114 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1013 mSDsluCounter, 976 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 700 mSDsCounter, 1173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3506 IncrementalHoareTripleChecker+Invalid, 4679 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1173 mSolverCounterUnsat, 276 mSDtfsCounter, 3506 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1606 GetRequests, 1319 SyntacticMatches, 19 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29797 ImplicationChecksByTransitivity, 16.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 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: 545]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) [L535] EXPR data.p0 [L535] void *ptr = data.p0; [L536] COND FALSE !(__VERIFIER_nondet_int()) [L539] data.str.p2 = 30 VAL [data={26628:0}, ptr={-1:0}] [L541] EXPR data.str.p2 VAL [data={26628:0}, data.str.p2=30, ptr={-1:0}] [L541] COND FALSE !(25 > data.str.p2) [L544] EXPR data.p0 VAL [data={26628:0}, data.p0={-1:0}, ptr={-1:0}] [L544] free(data.p0) VAL [data={26628:0}, data.p0={-1:0}, ptr={-1:0}] [L544] free(data.p0) VAL [data={26628:0}, data.p0={-1:0}, ptr={-1:0}] [L544] free(data.p0) [L545] free(ptr) VAL [data={26628:0}, ptr={-1:0}] [L545] free(ptr) VAL [data={26628:0}, ptr={-1:0}] [L545] free(ptr) VAL [data={26628:0}, ptr={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 88.1MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.96ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 99.1MB in the end (delta: -3.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.76ms. Allocated memory is still 130.0MB. Free memory was 99.1MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.57ms. Allocated memory is still 130.0MB. Free memory was 97.4MB in the beginning and 96.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 597.76ms. Allocated memory is still 130.0MB. Free memory was 96.1MB in the beginning and 83.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 18746.64ms. Allocated memory was 130.0MB in the beginning and 226.5MB in the end (delta: 96.5MB). Free memory was 83.1MB in the beginning and 170.1MB in the end (delta: -87.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Witness Printer took 71.87ms. Allocated memory is still 226.5MB. Free memory was 170.1MB in the beginning and 168.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 15:55:33,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8a97c2-f1c5-408d-9fbb-fa3d569cda68/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)