./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc 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_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5eb0e4c4138981b5d0263d433279609e9b809291f20fa6c19565d53ef342ae2b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:06:57,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:06:57,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-24 23:06:57,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:06:57,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:06:57,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:06:57,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:06:57,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:06:57,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:06:57,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:06:57,842 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:06:57,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:06:57,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:06:57,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:06:57,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:06:57,845 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:06:57,845 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:06:57,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:06:57,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:06:57,847 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:06:57,847 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:06:57,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:06:57,849 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:06:57,849 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:06:57,849 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:06:57,850 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:06:57,850 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:06:57,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:06:57,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:06:57,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:06:57,852 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:06:57,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:06:57,853 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_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eb0e4c4138981b5d0263d433279609e9b809291f20fa6c19565d53ef342ae2b [2023-11-24 23:06:58,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:06:58,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:06:58,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:06:58,208 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:06:58,209 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:06:58,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i [2023-11-24 23:07:01,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:07:01,979 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:07:01,986 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i [2023-11-24 23:07:02,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/data/d75b1e7fc/c469c48274ec4fa6aa4cd4948520c385/FLAGee1b96a89 [2023-11-24 23:07:02,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/data/d75b1e7fc/c469c48274ec4fa6aa4cd4948520c385 [2023-11-24 23:07:02,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:07:02,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:07:02,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:02,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:07:02,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:07:02,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:02,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa021d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02, skipping insertion in model container [2023-11-24 23:07:02,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:02,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:07:02,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:02,768 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:07:02,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:07:02,949 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:07:02,958 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:07:02,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02 WrapperNode [2023-11-24 23:07:02,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:07:02,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:02,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:07:02,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:07:02,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,124 INFO L138 Inliner]: procedures = 208, calls = 237, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1255 [2023-11-24 23:07:03,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:07:03,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:07:03,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:07:03,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:07:03,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:07:03,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:07:03,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:07:03,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:07:03,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:07:02" (1/1) ... [2023-11-24 23:07:03,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:07:03,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:07:03,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:07:03,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa53694e-0d2f-4926-99c6-195e8baa45ed/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:07:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:07:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:07:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:07:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:07:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:07:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:07:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:07:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:07:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:07:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:07:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:07:03,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:07:03,670 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:07:03,673 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:07:07,034 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:07:08,469 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:07:08,469 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-24 23:07:08,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:08 BoogieIcfgContainer [2023-11-24 23:07:08,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:07:08,472 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:07:08,472 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:07:08,482 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:07:08,483 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:07:08" (1/1) ... [2023-11-24 23:07:08,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:07:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:08,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 133 states and 219 transitions. [2023-11-24 23:07:08,548 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 219 transitions. [2023-11-24 23:07:08,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:07:08,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:08,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 133 states and 217 transitions. [2023-11-24 23:07:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 217 transitions. [2023-11-24 23:07:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:07:08,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:08,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:09,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 135 states and 220 transitions. [2023-11-24 23:07:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 220 transitions. [2023-11-24 23:07:09,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:07:09,053 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:09,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:09,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:07:09,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:09,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 135 states and 218 transitions. [2023-11-24 23:07:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 218 transitions. [2023-11-24 23:07:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:07:09,181 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:09,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:09,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:07:09,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 135 states and 214 transitions. [2023-11-24 23:07:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 214 transitions. [2023-11-24 23:07:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 23:07:09,317 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:09,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:09,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:07:09,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:09,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 135 states and 208 transitions. [2023-11-24 23:07:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 208 transitions. [2023-11-24 23:07:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:07:09,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:09,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:09,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:07:09,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:19,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:07:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:07:19,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 135 states and 202 transitions. [2023-11-24 23:07:19,799 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 202 transitions. [2023-11-24 23:07:19,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 23:07:19,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:07:19,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:07:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:07:20,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:07:20,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:07:20,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:07:30,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:07:40,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:07:50,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:08:00,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:08:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 148 states and 217 transitions. [2023-11-24 23:08:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 217 transitions. [2023-11-24 23:08:00,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 23:08:00,678 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:00,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:00,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:00,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 148 states and 215 transitions. [2023-11-24 23:08:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions. [2023-11-24 23:08:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-24 23:08:00,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:00,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:01,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:01,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 148 states and 213 transitions. [2023-11-24 23:08:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 213 transitions. [2023-11-24 23:08:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 23:08:01,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:01,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:01,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:01,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.