./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/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_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/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-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 ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 --- 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 [2022-12-15 03:47:44,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 03:47:44,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 03:47:44,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 03:47:44,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 03:47:44,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 03:47:44,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 03:47:44,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 03:47:44,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 03:47:44,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 03:47:44,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 03:47:44,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 03:47:44,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 03:47:44,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 03:47:44,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 03:47:44,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 03:47:44,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 03:47:44,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 03:47:44,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 03:47:44,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 03:47:44,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 03:47:44,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 03:47:44,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 03:47:44,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 03:47:44,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 03:47:44,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 03:47:44,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 03:47:44,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 03:47:44,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 03:47:44,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 03:47:44,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 03:47:44,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 03:47:44,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 03:47:44,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 03:47:44,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 03:47:44,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 03:47:44,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 03:47:44,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 03:47:44,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 03:47:44,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 03:47:44,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 03:47:44,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-15 03:47:44,340 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 03:47:44,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 03:47:44,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 03:47:44,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 03:47:44,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 03:47:44,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-15 03:47:44,342 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-15 03:47:44,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 03:47:44,343 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 03:47:44,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 03:47:44,343 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 03:47:44,343 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 03:47:44,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 03:47:44,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:47:44,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 03:47:44,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 03:47:44,344 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 03:47:44,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 03:47:44,345 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_16423368-db32-47a8-babe-13f2e40b0fb1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2022-12-15 03:47:44,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 03:47:44,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 03:47:44,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 03:47:44,523 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 03:47:44,524 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 03:47:44,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2022-12-15 03:47:47,140 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 03:47:47,337 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 03:47:47,338 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2022-12-15 03:47:47,348 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/data/a44fa384f/28354ac6c59b405a8ff1d0b86c00bb79/FLAG7e798da47 [2022-12-15 03:47:47,360 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/data/a44fa384f/28354ac6c59b405a8ff1d0b86c00bb79 [2022-12-15 03:47:47,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 03:47:47,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 03:47:47,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 03:47:47,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 03:47:47,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 03:47:47,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b95b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47, skipping insertion in model container [2022-12-15 03:47:47,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 03:47:47,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 03:47:47,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:47:47,630 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 03:47:47,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:47:47,681 INFO L208 MainTranslator]: Completed translation [2022-12-15 03:47:47,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47 WrapperNode [2022-12-15 03:47:47,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 03:47:47,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 03:47:47,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 03:47:47,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 03:47:47,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,717 INFO L138 Inliner]: procedures = 118, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-12-15 03:47:47,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 03:47:47,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 03:47:47,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 03:47:47,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 03:47:47,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,740 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 03:47:47,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 03:47:47,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 03:47:47,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 03:47:47,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:47:47" (1/1) ... [2022-12-15 03:47:47,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:47:47,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 03:47:47,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 03:47:47,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 03:47:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 03:47:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 03:47:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-15 03:47:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 03:47:47,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 03:47:47,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 03:47:47,903 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 03:47:47,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 03:47:48,127 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 03:47:48,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 03:47:48,190 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-15 03:47:48,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:47:48 BoogieIcfgContainer [2022-12-15 03:47:48,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 03:47:48,193 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 03:47:48,193 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 03:47:48,200 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 03:47:48,200 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:47:48" (1/1) ... [2022-12-15 03:47:48,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 03:47:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2022-12-15 03:47:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-12-15 03:47:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 03:47:48,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:48,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:48,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2022-12-15 03:47:48,453 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-12-15 03:47:48,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 03:47:48,453 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:48,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:48,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:48,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2022-12-15 03:47:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-12-15 03:47:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 03:47:48,866 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:48,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:48,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:48,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2022-12-15 03:47:48,919 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-12-15 03:47:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 03:47:48,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:48,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:49,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2022-12-15 03:47:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-12-15 03:47:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:47:49,426 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:50,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 58 states and 72 transitions. [2022-12-15 03:47:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2022-12-15 03:47:50,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:47:50,186 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:50,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2022-12-15 03:47:51,356 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2022-12-15 03:47:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:47:51,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:51,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2022-12-15 03:47:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-12-15 03:47:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:47:51,406 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:51,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:52,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 61 states and 80 transitions. [2022-12-15 03:47:52,054 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-12-15 03:47:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:47:52,054 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:52,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:52,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2022-12-15 03:47:52,095 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2022-12-15 03:47:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:47:52,095 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:52,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:52,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 62 states and 84 transitions. [2022-12-15 03:47:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 84 transitions. [2022-12-15 03:47:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 03:47:52,371 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:52,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:52,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:52,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:53,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 64 states and 88 transitions. [2022-12-15 03:47:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2022-12-15 03:47:53,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 03:47:53,000 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:53,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:53,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 67 states and 96 transitions. [2022-12-15 03:47:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions. [2022-12-15 03:47:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:47:53,936 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:55,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 64 states and 89 transitions. [2022-12-15 03:47:55,441 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 89 transitions. [2022-12-15 03:47:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:47:55,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:55,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 58 states and 76 transitions. [2022-12-15 03:47:56,541 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 76 transitions. [2022-12-15 03:47:56,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:47:56,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:56,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:57,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 60 states and 81 transitions. [2022-12-15 03:47:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2022-12-15 03:47:57,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:47:57,771 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:57,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 63 states and 91 transitions. [2022-12-15 03:47:58,639 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2022-12-15 03:47:58,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 03:47:58,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:58,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:58,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 62 states and 90 transitions. [2022-12-15 03:47:58,665 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2022-12-15 03:47:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 03:47:58,665 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:58,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:59,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 64 states and 93 transitions. [2022-12-15 03:47:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2022-12-15 03:47:59,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 03:47:59,087 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:59,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:59,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:47:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:47:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 65 states and 97 transitions. [2022-12-15 03:47:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 97 transitions. [2022-12-15 03:47:59,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-15 03:47:59,874 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:47:59,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:47:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:47:59,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-15 03:48:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:48:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 66 states and 101 transitions. [2022-12-15 03:48:00,608 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 101 transitions. [2022-12-15 03:48:00,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 03:48:00,608 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:48:00,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:48:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:48:00,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:48:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:48:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 70 states and 108 transitions. [2022-12-15 03:48:01,489 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 108 transitions. [2022-12-15 03:48:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 03:48:01,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:48:01,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:48:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:48:01,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:48:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:48:02,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 74 states and 117 transitions. [2022-12-15 03:48:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 117 transitions. [2022-12-15 03:48:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 03:48:02,730 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:48:02,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:48:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:48:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:48:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:48:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 76 states and 126 transitions. [2022-12-15 03:48:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 126 transitions. [2022-12-15 03:48:04,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-15 03:48:04,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:48:04,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:48:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:48:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:48:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:48:05,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 77 states and 130 transitions. [2022-12-15 03:48:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 130 transitions. [2022-12-15 03:48:05,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-15 03:48:05,906 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:48:05,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:48:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 03:48:05,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 03:48:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 03:48:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 03:48:05,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 03:48:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 03:48:05,980 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 25 iterations. [2022-12-15 03:48:06,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 03:48:06 ImpRootNode [2022-12-15 03:48:06,001 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 03:48:06,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 03:48:06,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 03:48:06,002 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 03:48:06,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:47:48" (3/4) ... [2022-12-15 03:48:06,003 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 03:48:06,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 03:48:06,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 03:48:06,034 INFO L158 Benchmark]: Toolchain (without parser) took 18670.41ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 58.6MB in the end (delta: 40.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,034 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:48:06,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.06ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 82.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.30ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,035 INFO L158 Benchmark]: Boogie Preprocessor took 25.26ms. Allocated memory is still 134.2MB. Free memory was 80.7MB in the beginning and 78.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,035 INFO L158 Benchmark]: RCFGBuilder took 447.96ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 56.3MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,036 INFO L158 Benchmark]: CodeCheck took 17808.60ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 56.3MB in the beginning and 60.7MB in the end (delta: -4.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,036 INFO L158 Benchmark]: Witness Printer took 31.73ms. Allocated memory is still 161.5MB. Free memory was 60.7MB in the beginning and 58.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:48:06,038 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, 54 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 17.8s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 889 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 799 mSDsluCounter, 252 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 1239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4452 IncrementalHoareTripleChecker+Invalid, 5691 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1239 mSolverCounterUnsat, 144 mSDtfsCounter, 4452 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1519 GetRequests, 1249 SyntacticMatches, 32 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28231 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 1802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 4/28 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L546] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={753:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={753:0}] [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L546] RET, EXPR build_nondet_String() [L546] char* s1 = build_nondet_String(); [L547] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={-1:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={-1:0}] [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L547] RET, EXPR build_nondet_String() [L547] char* s2 = build_nondet_String(); [L548] CALL cstrpbrk(s1,s2) [L532] const char *sc1; [L533] const char *s; [L534] int c; [L535] sc1 = s1 VAL [s1={753:0}, s1={753:0}, s2={-1:0}, s2={-1:0}, sc1={753:0}] [L535] EXPR \read(*sc1) VAL [\read(*sc1)=0, s1={753:0}, s1={753:0}, s2={-1:0}, s2={-1:0}, sc1={753:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={753:0}, s1={753:0}, s2={-1:0}, s2={-1:0}, sc1={753:0}] [L548] RET cstrpbrk(s1,s2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.06ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 82.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.30ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.26ms. Allocated memory is still 134.2MB. Free memory was 80.7MB in the beginning and 78.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.96ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 56.3MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 17808.60ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 56.3MB in the beginning and 60.7MB in the end (delta: -4.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Witness Printer took 31.73ms. Allocated memory is still 161.5MB. Free memory was 60.7MB in the beginning and 58.6MB 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! [2022-12-15 03:48:06,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16423368-db32-47a8-babe-13f2e40b0fb1/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-deref)