./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 0e0057cc 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_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:32:09,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:32:09,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-02 22:32:09,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:32:09,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:32:09,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:32:09,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:32:09,468 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:32:09,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:32:09,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:32:09,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:32:09,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:32:09,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:32:09,471 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:32:09,472 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:32:09,472 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 22:32:09,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:32:09,473 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:32:09,474 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:32:09,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:32:09,475 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:32:09,476 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:32:09,476 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:32:09,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:32:09,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:32:09,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:32:09,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:32:09,479 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:32:09,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:32:09,480 INFO L153 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_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce305d75684696e5fabb4c8d08830bbd90a67b7669f979309850a29850c4f917 [2023-12-02 22:32:09,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:32:09,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:32:09,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:32:09,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:32:09,714 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:32:09,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2023-12-02 22:32:12,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:32:12,702 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:32:12,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2023-12-02 22:32:12,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/data/02d0cc4ee/90254559891341138a9fed591d3dad62/FLAG820749d42 [2023-12-02 22:32:12,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/data/02d0cc4ee/90254559891341138a9fed591d3dad62 [2023-12-02 22:32:12,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:32:12,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:32:12,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:32:12,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:32:12,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:32:12,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:32:12" (1/1) ... [2023-12-02 22:32:12,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d2bce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:12, skipping insertion in model container [2023-12-02 22:32:12,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:32:12" (1/1) ... [2023-12-02 22:32:12,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:32:13,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:32:13,052 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:32:13,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:32:13,119 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:32:13,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13 WrapperNode [2023-12-02 22:32:13,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:32:13,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:32:13,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:32:13,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:32:13,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,170 INFO L138 Inliner]: procedures = 118, calls = 16, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2023-12-02 22:32:13,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:32:13,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:32:13,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:32:13,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:32:13,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:32:13,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:32:13,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:32:13,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:32:13,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:32:13,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:32:13,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:32:13,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:32:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 22:32:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 22:32:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:32:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:32:13,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:32:13,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:32:13,376 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:32:13,379 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:32:13,607 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:32:13,675 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:32:13,675 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 22:32:13,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:32:13 BoogieIcfgContainer [2023-12-02 22:32:13,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:32:13,677 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:32:13,677 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:32:13,684 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:32:13,684 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:32:13" (1/1) ... [2023-12-02 22:32:13,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:32:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:13,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2023-12-02 22:32:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2023-12-02 22:32:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 22:32:13,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:13,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2023-12-02 22:32:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-12-02 22:32:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 22:32:13,958 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:13,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:14,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2023-12-02 22:32:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2023-12-02 22:32:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 22:32:14,504 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:14,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2023-12-02 22:32:14,939 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2023-12-02 22:32:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 22:32:14,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:14,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:15,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2023-12-02 22:32:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2023-12-02 22:32:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:32:15,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:15,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:15,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:16,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 58 states and 73 transitions. [2023-12-02 22:32:16,436 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2023-12-02 22:32:16,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:32:16,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:16,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:16,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2023-12-02 22:32:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-12-02 22:32:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:32:17,610 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:17,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 58 states and 75 transitions. [2023-12-02 22:32:17,671 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2023-12-02 22:32:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:32:17,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:17,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:17,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2023-12-02 22:32:17,806 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2023-12-02 22:32:17,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:32:17,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:17,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:17,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 59 states and 78 transitions. [2023-12-02 22:32:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 78 transitions. [2023-12-02 22:32:17,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:32:17,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:17,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 60 states and 80 transitions. [2023-12-02 22:32:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2023-12-02 22:32:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 22:32:18,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:18,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:18,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 62 states and 84 transitions. [2023-12-02 22:32:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 84 transitions. [2023-12-02 22:32:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 22:32:18,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:18,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:19,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:20,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 66 states and 94 transitions. [2023-12-02 22:32:20,586 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2023-12-02 22:32:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:32:20,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:20,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:22,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 63 states and 87 transitions. [2023-12-02 22:32:22,204 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 87 transitions. [2023-12-02 22:32:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:32:22,205 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:23,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 58 states and 74 transitions. [2023-12-02 22:32:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2023-12-02 22:32:23,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:32:23,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:23,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 85 transitions. [2023-12-02 22:32:25,128 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2023-12-02 22:32:25,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:32:25,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:25,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 62 states and 90 transitions. [2023-12-02 22:32:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2023-12-02 22:32:26,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:32:26,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:26,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 64 states and 95 transitions. [2023-12-02 22:32:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 95 transitions. [2023-12-02 22:32:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:32:26,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:27,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:32:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 66 states and 100 transitions. [2023-12-02 22:32:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 100 transitions. [2023-12-02 22:32:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:32:28,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:28,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 65 states and 99 transitions. [2023-12-02 22:32:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 99 transitions. [2023-12-02 22:32:28,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 22:32:28,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:28,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:29,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 67 states and 102 transitions. [2023-12-02 22:32:29,055 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2023-12-02 22:32:29,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:32:29,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:29,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:29,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 70 states and 113 transitions. [2023-12-02 22:32:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 113 transitions. [2023-12-02 22:32:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:32:30,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:30,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:31,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 71 states and 113 transitions. [2023-12-02 22:32:31,312 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 113 transitions. [2023-12-02 22:32:31,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:32:31,313 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:32,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 75 states and 120 transitions. [2023-12-02 22:32:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 120 transitions. [2023-12-02 22:32:32,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:32:32,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:32,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:32:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 79 states and 129 transitions. [2023-12-02 22:32:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2023-12-02 22:32:34,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:32:34,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:32:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 80 states and 129 transitions. [2023-12-02 22:32:34,800 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 129 transitions. [2023-12-02 22:32:34,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:32:34,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:34,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:32:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 22:32:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:32:35,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 62 states and 80 transitions. [2023-12-02 22:32:35,689 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2023-12-02 22:32:35,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 22:32:35,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:32:35,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:32:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:32:35,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:32:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:32:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:32:35,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 22:32:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 22:32:35,811 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2023-12-02 22:32:35,833 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 22:32:35,834 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 22:32:35,836 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-12-02 22:32:35,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 10:32:35 ImpRootNode [2023-12-02 22:32:35,841 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 22:32:35,842 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 22:32:35,842 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 22:32:35,842 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 22:32:35,843 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:32:13" (3/4) ... [2023-12-02 22:32:35,843 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 22:32:35,849 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 22:32:35,849 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 22:32:35,850 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated [2023-12-02 22:32:35,884 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 22:32:35,885 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 22:32:35,886 INFO L158 Benchmark]: Toolchain (without parser) took 23151.44ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 112.4MB in the beginning and 87.5MB in the end (delta: 25.0MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,886 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:32:35,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.32ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 95.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.04ms. Allocated memory is still 157.3MB. Free memory was 95.8MB in the beginning and 93.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,888 INFO L158 Benchmark]: Boogie Preprocessor took 30.99ms. Allocated memory is still 157.3MB. Free memory was 93.7MB in the beginning and 92.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,888 INFO L158 Benchmark]: RCFGBuilder took 473.46ms. Allocated memory is still 157.3MB. Free memory was 92.1MB in the beginning and 68.2MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,889 INFO L158 Benchmark]: CodeCheck took 22164.68ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 68.2MB in the beginning and 89.6MB in the end (delta: -21.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,889 INFO L158 Benchmark]: Witness Printer took 42.90ms. Allocated memory is still 199.2MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 22:32:35,892 INFO L338 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: 22.1s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1126 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1048 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 8.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 1315 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5287 IncrementalHoareTripleChecker+Invalid, 6602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1315 mSolverCounterUnsat, 152 mSDtfsCounter, 5287 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1776 GetRequests, 1495 SyntacticMatches, 41 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27857 ImplicationChecksByTransitivity, 18.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 1979 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 12/36 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={6644:0}] [L521] COND FALSE !(i < length - 1) [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 FALSE !(length < 1) [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={6645:0}] [L521] COND FALSE !(i < length - 1) [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={6644:0}, s1={6644:0}, s2={6645:0}, s2={6645:0}, sc1={6644:0}] [L535] EXPR \read(*sc1) VAL [s1={6644:0}, s1={6644:0}, s2={6645:0}, s2={6645:0}, sc1={6644:0}] [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; VAL [\result={0:0}, s1={6644:0}, s1={6644:0}, s2={6645:0}, s2={6645:0}, sc1={6644:0}] [L548] RET cstrpbrk(s1,s2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 129.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.32ms. Allocated memory is still 157.3MB. Free memory was 112.4MB in the beginning and 95.8MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.04ms. Allocated memory is still 157.3MB. Free memory was 95.8MB in the beginning and 93.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.99ms. Allocated memory is still 157.3MB. Free memory was 93.7MB in the beginning and 92.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 473.46ms. Allocated memory is still 157.3MB. Free memory was 92.1MB in the beginning and 68.2MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 22164.68ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 68.2MB in the beginning and 89.6MB in the end (delta: -21.4MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 42.90ms. Allocated memory is still 199.2MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-12-02 22:32:35,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d13e0-6e70-4b06-9bcd-cd3b47f16036/bin/ukojak-verify-Qdu7aM0XO9/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)