./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/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_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/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_91ff3dd1-413b-4eff-a82e-7d237718486c/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 6c5050f69dd0fe75249366946a38ba884fb5943ccf611397d2d01e0ccda347b5 --- 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 20:27:20,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:27:20,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:27:20,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:27:20,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:27:20,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:27:20,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:27:20,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:27:20,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:27:20,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:27:20,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:27:20,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:27:20,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:27:20,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:27:20,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:27:20,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:27:20,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:27:20,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:27:20,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:27:20,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:27:20,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:27:20,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:27:20,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:27:20,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:27:20,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:27:20,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:27:20,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:27:20,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:27:20,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:27:20,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:27:20,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:27:20,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:27:20,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:27:20,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:27:20,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:27:20,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:27:20,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:27:20,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:27:20,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:27:20,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:27:20,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:27:20,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-12-14 20:27:20,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:27:20,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:27:20,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:27:20,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:27:20,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:27:20,912 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 20:27:20,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 20:27:20,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:27:20,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 20:27:20,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:27:20,918 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 20:27:20,918 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 20:27:20,918 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 20:27:20,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:27:20,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 20:27:20,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:27:20,919 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:27:20,919 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:27:20,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:27:20,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:27:20,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:27:20,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:27:20,920 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:27:20,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:27:20,921 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_91ff3dd1-413b-4eff-a82e-7d237718486c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c5050f69dd0fe75249366946a38ba884fb5943ccf611397d2d01e0ccda347b5 [2022-12-14 20:27:21,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:27:21,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:27:21,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:27:21,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:27:21,138 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:27:21,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2022-12-14 20:27:23,687 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:27:23,824 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:27:23,825 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/sv-benchmarks/c/memsafety-ext3/derefAfterFree2.c [2022-12-14 20:27:23,829 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/data/2bce7e1c6/fe8f196f4fcc4dd9b470472a4ed9688d/FLAG70da47ce0 [2022-12-14 20:27:24,255 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/data/2bce7e1c6/fe8f196f4fcc4dd9b470472a4ed9688d [2022-12-14 20:27:24,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:27:24,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:27:24,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:27:24,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:27:24,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:27:24,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2494f764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24, skipping insertion in model container [2022-12-14 20:27:24,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:27:24,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:27:24,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:27:24,377 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:27:24,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:27:24,395 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:27:24,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24 WrapperNode [2022-12-14 20:27:24,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:27:24,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:27:24,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:27:24,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:27:24,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,418 INFO L138 Inliner]: procedures = 9, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-12-14 20:27:24,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:27:24,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:27:24,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:27:24,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:27:24,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:27:24,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:27:24,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:27:24,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:27:24,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:27:24,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:27:24,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:27:24,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:27:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 20:27:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 20:27:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:27:24,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:27:24,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 20:27:24,537 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:27:24,538 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:27:24,618 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:27:24,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:27:24,635 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 20:27:24,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:24 BoogieIcfgContainer [2022-12-14 20:27:24,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:27:24,638 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:27:24,638 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:27:24,646 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:27:24,646 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:24" (1/1) ... [2022-12-14 20:27:24,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:27:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:24,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2022-12-14 20:27:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-14 20:27:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 20:27:24,709 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:24,813 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 20:27:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:24,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2022-12-14 20:27:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 20:27:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 20:27:24,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:24,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:24,912 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 20:27:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2022-12-14 20:27:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-12-14 20:27:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 20:27:24,989 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:25,084 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 20:27:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-12-14 20:27:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-12-14 20:27:25,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 20:27:25,276 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:25,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:25,305 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 20:27:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-12-14 20:27:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-12-14 20:27:25,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:27:25,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:25,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:25,494 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 20:27:25,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2022-12-14 20:27:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2022-12-14 20:27:25,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:27:25,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:25,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:25,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2022-12-14 20:27:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2022-12-14 20:27:25,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:27:25,956 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:25,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:25,973 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 20:27:26,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:26,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2022-12-14 20:27:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2022-12-14 20:27:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:27:26,096 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:26,155 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 20:27:26,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2022-12-14 20:27:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2022-12-14 20:27:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 20:27:26,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 20:27:26,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 36 states and 57 transitions. [2022-12-14 20:27:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2022-12-14 20:27:26,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 20:27:26,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 20:27:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 45 states and 70 transitions. [2022-12-14 20:27:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2022-12-14 20:27:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:27,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:27,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 20:27:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 44 states and 69 transitions. [2022-12-14 20:27:27,510 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 69 transitions. [2022-12-14 20:27:27,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:27,510 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:27,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 20:27:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 45 states and 73 transitions. [2022-12-14 20:27:27,654 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 73 transitions. [2022-12-14 20:27:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:27,655 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:27,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:28,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 49 states and 89 transitions. [2022-12-14 20:27:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 89 transitions. [2022-12-14 20:27:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:28,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:28,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:29,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 53 states and 110 transitions. [2022-12-14 20:27:29,059 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 110 transitions. [2022-12-14 20:27:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:29,060 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:29,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 20:27:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 55 states and 114 transitions. [2022-12-14 20:27:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 114 transitions. [2022-12-14 20:27:29,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:29,401 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:29,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:29,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:29,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 56 states and 115 transitions. [2022-12-14 20:27:29,639 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 115 transitions. [2022-12-14 20:27:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:29,639 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:29,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:29,649 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 20:27:29,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 57 states and 115 transitions. [2022-12-14 20:27:29,815 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 115 transitions. [2022-12-14 20:27:29,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:29,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:29,863 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 58 states and 116 transitions. [2022-12-14 20:27:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 116 transitions. [2022-12-14 20:27:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:30,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 59 states and 116 transitions. [2022-12-14 20:27:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 116 transitions. [2022-12-14 20:27:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:27:30,216 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:30,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:30,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 60 states and 118 transitions. [2022-12-14 20:27:30,440 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 118 transitions. [2022-12-14 20:27:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 20:27:30,440 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:30,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 20:27:30,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:30,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 62 states and 121 transitions. [2022-12-14 20:27:30,819 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 121 transitions. [2022-12-14 20:27:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 20:27:30,819 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:30,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 20:27:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 63 states and 121 transitions. [2022-12-14 20:27:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 121 transitions. [2022-12-14 20:27:31,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 20:27:31,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:31,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:31,101 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 20:27:31,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:31,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 65 states and 124 transitions. [2022-12-14 20:27:31,317 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 124 transitions. [2022-12-14 20:27:31,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 20:27:31,317 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 20:27:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 67 states and 125 transitions. [2022-12-14 20:27:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 125 transitions. [2022-12-14 20:27:31,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 20:27:31,755 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:31,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:31,814 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 71 states and 147 transitions. [2022-12-14 20:27:32,404 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 147 transitions. [2022-12-14 20:27:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 20:27:32,405 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:32,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 74 states and 147 transitions. [2022-12-14 20:27:33,098 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 147 transitions. [2022-12-14 20:27:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 20:27:33,098 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:33,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:33,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 76 states and 150 transitions. [2022-12-14 20:27:33,553 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 150 transitions. [2022-12-14 20:27:33,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 20:27:33,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 20:27:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 78 states and 152 transitions. [2022-12-14 20:27:33,871 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 152 transitions. [2022-12-14 20:27:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 20:27:33,872 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:33,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 20:27:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:34,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 80 states and 153 transitions. [2022-12-14 20:27:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 153 transitions. [2022-12-14 20:27:34,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:34,218 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 84 states and 174 transitions. [2022-12-14 20:27:34,958 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 174 transitions. [2022-12-14 20:27:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:34,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:34,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 20:27:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 86 states and 178 transitions. [2022-12-14 20:27:35,277 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 178 transitions. [2022-12-14 20:27:35,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:35,277 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:35,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:35,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 87 states and 180 transitions. [2022-12-14 20:27:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 180 transitions. [2022-12-14 20:27:35,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:35,589 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:35,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 20:27:35,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:35,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 88 states and 181 transitions. [2022-12-14 20:27:35,820 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 181 transitions. [2022-12-14 20:27:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:35,820 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:35,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:36,029 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 92 states and 200 transitions. [2022-12-14 20:27:37,157 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 200 transitions. [2022-12-14 20:27:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:37,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:37,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 28 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 93 states and 200 transitions. [2022-12-14 20:27:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 200 transitions. [2022-12-14 20:27:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 20:27:37,748 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:37,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:37,768 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:37,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:37,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 94 states and 200 transitions. [2022-12-14 20:27:37,927 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 200 transitions. [2022-12-14 20:27:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 20:27:37,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:37,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:37,938 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 20:27:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:38,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 95 states and 203 transitions. [2022-12-14 20:27:38,219 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 203 transitions. [2022-12-14 20:27:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 20:27:38,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:38,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:38,234 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 20:27:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 96 states and 204 transitions. [2022-12-14 20:27:38,525 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 204 transitions. [2022-12-14 20:27:38,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 20:27:38,525 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:38,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-14 20:27:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 99 states and 209 transitions. [2022-12-14 20:27:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 209 transitions. [2022-12-14 20:27:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:39,145 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:39,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 103 states and 224 transitions. [2022-12-14 20:27:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 224 transitions. [2022-12-14 20:27:40,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:40,713 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:40,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 107 states and 252 transitions. [2022-12-14 20:27:41,812 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 252 transitions. [2022-12-14 20:27:41,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:41,812 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:41,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-14 20:27:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 108 states and 252 transitions. [2022-12-14 20:27:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 252 transitions. [2022-12-14 20:27:42,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:42,030 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:42,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:42,051 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 109 states and 252 transitions. [2022-12-14 20:27:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 252 transitions. [2022-12-14 20:27:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:42,359 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 111 states and 257 transitions. [2022-12-14 20:27:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 257 transitions. [2022-12-14 20:27:42,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:42,952 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:42,975 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 112 states and 257 transitions. [2022-12-14 20:27:43,376 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 257 transitions. [2022-12-14 20:27:43,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:43,377 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 45 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:44,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:44,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 115 states and 257 transitions. [2022-12-14 20:27:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 257 transitions. [2022-12-14 20:27:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 20:27:44,389 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 116 states and 257 transitions. [2022-12-14 20:27:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 257 transitions. [2022-12-14 20:27:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 20:27:44,695 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:44,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 20:27:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 118 states and 258 transitions. [2022-12-14 20:27:45,139 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 258 transitions. [2022-12-14 20:27:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 20:27:45,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:45,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:27:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 17 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:27:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:27:45,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 120 states and 263 transitions. [2022-12-14 20:27:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 263 transitions. [2022-12-14 20:27:45,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 20:27:45,990 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:27:45,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:27:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 20:27:46,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 20:27:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 20:27:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 20:27:46,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 20:27:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 20:27:46,076 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 50 iterations. [2022-12-14 20:27:46,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 08:27:46 ImpRootNode [2022-12-14 20:27:46,103 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 20:27:46,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 20:27:46,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 20:27:46,104 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 20:27:46,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:27:24" (3/4) ... [2022-12-14 20:27:46,106 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 20:27:46,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 20:27:46,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 20:27:46,146 INFO L158 Benchmark]: Toolchain (without parser) took 21887.90ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 97.3MB in the beginning and 62.2MB in the end (delta: 35.1MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,147 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:27:46,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 136.57ms. Allocated memory is still 132.1MB. Free memory was 97.0MB in the beginning and 87.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.46ms. Allocated memory is still 132.1MB. Free memory was 87.7MB in the beginning and 86.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,148 INFO L158 Benchmark]: Boogie Preprocessor took 13.34ms. Allocated memory is still 132.1MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,148 INFO L158 Benchmark]: RCFGBuilder took 205.51ms. Allocated memory is still 132.1MB. Free memory was 85.0MB in the beginning and 74.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,148 INFO L158 Benchmark]: CodeCheck took 21465.15ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 74.8MB in the beginning and 64.3MB in the end (delta: 10.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,149 INFO L158 Benchmark]: Witness Printer took 42.12ms. Allocated memory is still 192.9MB. Free memory was 64.3MB in the beginning and 62.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:27:46,150 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 50, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7605 SdHoareTripleChecker+Valid, 25.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7274 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 21.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4073 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25110 IncrementalHoareTripleChecker+Invalid, 29183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4073 mSolverCounterUnsat, 141 mSDtfsCounter, 25110 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6696 GetRequests, 6075 SyntacticMatches, 231 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83067 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 767 NumberOfCodeBlocks, 767 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 688 ConstructedInterpolants, 0 QuantifiedInterpolants, 5037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 24 PerfectInterpolantSequences, 513/1041 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: [L6] int* p = malloc(10 * sizeof(int)); [L8] int i = 0; VAL [i=0, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=0, p={-1:0}] [L9] p[i] = 1 VAL [i=0, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=0, p={-1:0}] [L8] i++ VAL [i=1, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=1, p={-1:0}] [L9] p[i] = 1 VAL [i=1, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=1, p={-1:0}] [L8] i++ VAL [i=2, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=2, p={-1:0}] [L9] p[i] = 1 VAL [i=2, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=2, p={-1:0}] [L8] i++ VAL [i=3, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=3, p={-1:0}] [L9] p[i] = 1 VAL [i=3, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=3, p={-1:0}] [L8] i++ VAL [i=4, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=4, p={-1:0}] [L9] p[i] = 1 VAL [i=4, p={-1:0}] [L10] COND FALSE !(i == 5) VAL [i=4, p={-1:0}] [L8] i++ VAL [i=5, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=5, p={-1:0}] [L9] p[i] = 1 VAL [i=5, p={-1:0}] [L10] COND TRUE i == 5 VAL [i=5, p={-1:0}] [L11] free(p) VAL [i=5, p={-1:0}] [L11] free(p) VAL [i=5, p={-1:0}] [L11] free(p) [L8] i++ VAL [i=6, p={-1:0}] [L8] COND TRUE i < 10 VAL [i=6, p={-1:0}] [L9] p[i] = 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 136.57ms. Allocated memory is still 132.1MB. Free memory was 97.0MB in the beginning and 87.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.46ms. Allocated memory is still 132.1MB. Free memory was 87.7MB in the beginning and 86.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.34ms. Allocated memory is still 132.1MB. Free memory was 86.2MB in the beginning and 85.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 205.51ms. Allocated memory is still 132.1MB. Free memory was 85.0MB in the beginning and 74.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 21465.15ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 74.8MB in the beginning and 64.3MB in the end (delta: 10.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 42.12ms. Allocated memory is still 192.9MB. Free memory was 64.3MB in the beginning and 62.2MB 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 20:27:46,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff3dd1-413b-4eff-a82e-7d237718486c/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)