./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4 --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 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 18:19:35,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:19:35,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:19:35,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:19:35,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:19:35,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:19:35,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:19:35,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:19:35,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:19:35,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:19:35,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:19:35,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:19:35,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:19:35,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:19:35,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:19:35,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:19:35,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:19:35,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:19:35,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:19:35,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:19:35,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:19:35,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:19:35,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:19:35,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:19:35,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:19:35,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:19:35,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:19:35,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:19:35,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:19:35,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:19:35,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:19:35,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:19:35,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:19:35,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:19:35,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:19:35,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:19:35,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:19:35,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:19:35,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:19:35,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:19:35,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:19:35,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2022-12-14 18:19:35,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:19:35,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:19:35,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:19:35,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:19:35,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:19:35,231 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:19:35,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 18:19:35,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:19:35,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:19:35,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:19:35,232 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 18:19:35,232 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 18:19:35,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:19:35,232 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:19:35,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:19:35,233 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:19:35,233 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:19:35,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:19:35,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:19:35,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:19:35,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:19:35,234 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:19:35,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:19:35,234 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_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b [2022-12-14 18:19:35,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:19:35,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:19:35,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:19:35,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:19:35,463 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:19:35,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/list-properties/simple-1.i [2022-12-14 18:19:38,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:19:38,325 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:19:38,325 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/sv-benchmarks/c/list-properties/simple-1.i [2022-12-14 18:19:38,335 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/data/2592d27c3/cb37284bd2ca485e8fe40f49c9528b36/FLAGc0ab7052b [2022-12-14 18:19:38,348 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/data/2592d27c3/cb37284bd2ca485e8fe40f49c9528b36 [2022-12-14 18:19:38,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:19:38,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:19:38,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:19:38,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:19:38,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:19:38,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d802892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38, skipping insertion in model container [2022-12-14 18:19:38,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:19:38,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:19:38,628 WARN L237 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_bf32e38e-ee92-4dce-b1ba-2986b308c289/sv-benchmarks/c/list-properties/simple-1.i[23237,23250] [2022-12-14 18:19:38,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:38,640 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:19:38,669 WARN L237 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_bf32e38e-ee92-4dce-b1ba-2986b308c289/sv-benchmarks/c/list-properties/simple-1.i[23237,23250] [2022-12-14 18:19:38,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:19:38,691 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:19:38,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38 WrapperNode [2022-12-14 18:19:38,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:19:38,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:19:38,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:19:38,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:19:38,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,733 INFO L138 Inliner]: procedures = 124, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 18:19:38,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:19:38,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:19:38,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:19:38,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:19:38,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:19:38,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:19:38,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:19:38,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:19:38,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:38" (1/1) ... [2022-12-14 18:19:38,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:19:38,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:19:38,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:19:38,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:19:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:19:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:19:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 18:19:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 18:19:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 18:19:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 18:19:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 18:19:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:19:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:19:38,920 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:19:38,922 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:19:39,089 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:19:39,115 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:19:39,115 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 18:19:39,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:39 BoogieIcfgContainer [2022-12-14 18:19:39,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:19:39,118 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:19:39,118 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:19:39,125 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:19:39,125 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:39" (1/1) ... [2022-12-14 18:19:39,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:19:39,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:39,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 38 states and 43 transitions. [2022-12-14 18:19:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-12-14 18:19:39,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:19:39,181 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:39,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:39,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:39,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:39,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2022-12-14 18:19:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-12-14 18:19:39,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:19:39,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:39,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:39,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 36 states and 41 transitions. [2022-12-14 18:19:39,520 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-12-14 18:19:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 18:19:39,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:39,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2022-12-14 18:19:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-12-14 18:19:39,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:19:39,547 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:39,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:39,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 39 states and 45 transitions. [2022-12-14 18:19:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-12-14 18:19:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:19:39,730 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:39,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:40,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 42 states and 50 transitions. [2022-12-14 18:19:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-12-14 18:19:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:19:40,100 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:40,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2022-12-14 18:19:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-12-14 18:19:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:19:40,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:40,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:40,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 44 states and 52 transitions. [2022-12-14 18:19:40,210 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-12-14 18:19:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:19:40,210 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:40,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2022-12-14 18:19:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-12-14 18:19:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:19:40,248 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:40,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:40,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 47 states and 57 transitions. [2022-12-14 18:19:40,781 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-12-14 18:19:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 18:19:40,783 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:40,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:41,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:41,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 46 states and 56 transitions. [2022-12-14 18:19:41,042 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2022-12-14 18:19:41,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 18:19:41,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:41,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2022-12-14 18:19:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2022-12-14 18:19:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:19:41,429 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:41,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:41,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:41,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 55 states and 73 transitions. [2022-12-14 18:19:41,704 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2022-12-14 18:19:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:19:41,704 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:41,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:41,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 85 transitions. [2022-12-14 18:19:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2022-12-14 18:19:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:19:41,905 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:41,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 65 states and 92 transitions. [2022-12-14 18:19:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 92 transitions. [2022-12-14 18:19:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:19:42,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 64 states and 91 transitions. [2022-12-14 18:19:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2022-12-14 18:19:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 18:19:42,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:42,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 65 states and 98 transitions. [2022-12-14 18:19:42,580 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2022-12-14 18:19:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 18:19:42,581 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:42,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:42,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 103 transitions. [2022-12-14 18:19:43,373 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 103 transitions. [2022-12-14 18:19:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 18:19:43,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:43,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:43,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 67 states and 102 transitions. [2022-12-14 18:19:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2022-12-14 18:19:43,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 18:19:43,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:43,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2022-12-14 18:19:43,728 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2022-12-14 18:19:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 18:19:43,729 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 54 states and 75 transitions. [2022-12-14 18:19:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2022-12-14 18:19:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 18:19:44,407 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:44,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:45,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 67 transitions. [2022-12-14 18:19:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2022-12-14 18:19:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 18:19:45,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:45,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:46,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 77 transitions. [2022-12-14 18:19:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2022-12-14 18:19:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 18:19:46,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:46,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:19:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:19:47,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:19:47,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 52 states and 79 transitions. [2022-12-14 18:19:47,068 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2022-12-14 18:19:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 18:19:47,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:19:47,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:19:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:19:47,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 18:19:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:19:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:19:47,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 18:19:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 18:19:47,146 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 24 iterations. [2022-12-14 18:19:47,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 06:19:47 ImpRootNode [2022-12-14 18:19:47,165 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 18:19:47,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 18:19:47,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 18:19:47,166 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 18:19:47,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:39" (3/4) ... [2022-12-14 18:19:47,167 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 18:19:47,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 18:19:47,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 18:19:47,193 INFO L158 Benchmark]: Toolchain (without parser) took 8841.57ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 67.7MB in the beginning and 84.3MB in the end (delta: -16.6MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,193 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:19:47,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.50ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 67.5MB in the beginning and 145.9MB in the end (delta: -78.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.68ms. Allocated memory is still 180.4MB. Free memory was 145.9MB in the beginning and 144.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,194 INFO L158 Benchmark]: Boogie Preprocessor took 28.40ms. Allocated memory is still 180.4MB. Free memory was 144.5MB in the beginning and 142.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,194 INFO L158 Benchmark]: RCFGBuilder took 354.02ms. Allocated memory is still 180.4MB. Free memory was 142.4MB in the beginning and 126.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,195 INFO L158 Benchmark]: CodeCheck took 8047.32ms. Allocated memory is still 180.4MB. Free memory was 126.3MB in the beginning and 86.4MB in the end (delta: 40.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,195 INFO L158 Benchmark]: Witness Printer took 26.67ms. Allocated memory is still 180.4MB. Free memory was 86.4MB in the beginning and 84.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:19:47,197 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, 38 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1440 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1107 mSDsluCounter, 1281 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 919 mSDsCounter, 840 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3539 IncrementalHoareTripleChecker+Invalid, 4379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 840 mSolverCounterUnsat, 362 mSDtfsCounter, 3539 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1656 GetRequests, 1438 SyntacticMatches, 46 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13561 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 21 PerfectInterpolantSequences, 6/8 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: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; VAL [a={11099:0}, p={11099:0}] [L536] a->h = 2 VAL [a={11099:0}, p={11099:0}] [L537] COND FALSE !(__VERIFIER_nondet_int()) [L544] p->h = 2 VAL [a={11099:0}, p={11099:0}] [L545] p->n = 0 [L546] p = a VAL [a={11099:0}, p={11099:0}] [L547] COND TRUE p!=0 VAL [a={11099:0}, p={11099:0}] [L548] EXPR p->h VAL [a={11099:0}, p={11099:0}, p->h=2] [L548] COND FALSE !(p->h != 2) [L551] EXPR p->n [L551] p = p->n [L547] COND FALSE !(p!=0) [L553] return 0; VAL [\result=0, a={11099:0}, p={0:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.50ms. Allocated memory was 121.6MB in the beginning and 180.4MB in the end (delta: 58.7MB). Free memory was 67.5MB in the beginning and 145.9MB in the end (delta: -78.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.68ms. Allocated memory is still 180.4MB. Free memory was 145.9MB in the beginning and 144.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.40ms. Allocated memory is still 180.4MB. Free memory was 144.5MB in the beginning and 142.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.02ms. Allocated memory is still 180.4MB. Free memory was 142.4MB in the beginning and 126.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 8047.32ms. Allocated memory is still 180.4MB. Free memory was 126.3MB in the beginning and 86.4MB in the end (delta: 40.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Witness Printer took 26.67ms. Allocated memory is still 180.4MB. Free memory was 86.4MB in the beginning and 84.3MB 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! [2022-12-14 18:19:47,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf32e38e-ee92-4dce-b1ba-2986b308c289/bin/ukojak-rkRKPMF4O4/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-memcleanup)