./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV --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 64bit --witnessprinter.graph.data.programhash 7f0d11c5f3d4193dc8b87cb3dbae552e2a558805da02a0660bf5cf3361799dbf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:57:28,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:57:28,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-11 23:57:28,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:57:28,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:57:28,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:57:28,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:57:28,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:57:28,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:57:28,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:57:28,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:57:28,419 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:57:28,420 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:57:28,420 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:57:28,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:57:28,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:57:28,422 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:57:28,423 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:57:28,424 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:57:28,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:57:28,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:57:28,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:57:28,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:57:28,433 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:57:28,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:57:28,434 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_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f0d11c5f3d4193dc8b87cb3dbae552e2a558805da02a0660bf5cf3361799dbf [2023-11-11 23:57:28,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:57:28,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:57:28,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:57:28,821 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:57:28,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:57:28,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2023-11-11 23:57:31,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:57:32,200 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:57:32,201 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2023-11-11 23:57:32,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/data/c9f1ec8ec/b9fe1177a38e49cb84f299280ea24e0d/FLAG931dea7ab [2023-11-11 23:57:32,234 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/data/c9f1ec8ec/b9fe1177a38e49cb84f299280ea24e0d [2023-11-11 23:57:32,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:57:32,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:57:32,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:57:32,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:57:32,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:57:32,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37995d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32, skipping insertion in model container [2023-11-11 23:57:32,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,302 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:57:32,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:57:32,615 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:57:32,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:57:32,690 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:57:32,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32 WrapperNode [2023-11-11 23:57:32,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:57:32,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:57:32,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:57:32,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:57:32,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,758 INFO L138 Inliner]: procedures = 111, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-11-11 23:57:32,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:57:32,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:57:32,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:57:32,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:57:32,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,787 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:57:32,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:57:32,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:57:32,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:57:32,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:32" (1/1) ... [2023-11-11 23:57:32,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:57:32,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:57:32,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:57:32,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7db5df63-60dd-4565-a515-4f5d95e46fe9/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:57:32,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:57:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:57:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:57:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:57:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:57:33,008 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:57:33,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:57:33,173 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:57:33,235 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:57:33,235 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:57:33,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:33 BoogieIcfgContainer [2023-11-11 23:57:33,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:57:33,240 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:57:33,241 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:57:33,251 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:57:33,252 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:33" (1/1) ... [2023-11-11 23:57:33,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:57:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2023-11-11 23:57:33,351 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-11-11 23:57:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:57:33,353 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:33,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-11 23:57:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-11 23:57:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:57:33,872 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:34,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-11 23:57:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-11 23:57:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:57:34,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:34,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-11 23:57:35,300 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-11 23:57:35,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:57:35,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:35,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:36,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:36,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-11 23:57:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-11 23:57:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:57:36,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:36,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:36,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:36,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2023-11-11 23:57:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-11-11 23:57:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:57:36,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:36,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2023-11-11 23:57:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2023-11-11 23:57:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:57:40,903 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:41,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 50 transitions. [2023-11-11 23:57:41,434 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2023-11-11 23:57:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:57:41,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:41,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-11 23:57:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2023-11-11 23:57:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2023-11-11 23:57:42,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:57:42,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:42,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:57:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 35 states and 48 transitions. [2023-11-11 23:57:42,658 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-11 23:57:42,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:57:42,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:42,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:57:54,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 43 states and 71 transitions. [2023-11-11 23:57:54,091 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 71 transitions. [2023-11-11 23:57:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:57:54,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:54,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-11 23:57:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 44 states and 71 transitions. [2023-11-11 23:57:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2023-11-11 23:57:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:57:54,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:54,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:58:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:58:13,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 54 states and 95 transitions. [2023-11-11 23:58:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 95 transitions. [2023-11-11 23:58:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-11 23:58:13,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:58:13,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:58:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:58:20,628 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.