./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/rm-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/rm-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL --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 dbde1465e4a8a8be87bf489cace5bdf23c2ed0aa6acb10b5f1f6c91d8d840161 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:33:33,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:33:33,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 03:33:33,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:33:33,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:33:33,636 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:33:33,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:33:33,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:33:33,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:33:33,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:33:33,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:33:33,644 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:33:33,645 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:33:33,646 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:33:33,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:33:33,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:33:33,650 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:33:33,656 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:33:33,657 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:33:33,658 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:33:33,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:33:33,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:33:33,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:33:33,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:33:33,666 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:33:33,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:33:33,668 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_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbde1465e4a8a8be87bf489cace5bdf23c2ed0aa6acb10b5f1f6c91d8d840161 [2023-11-19 03:33:34,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:33:34,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:33:34,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:33:34,086 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:33:34,088 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:33:34,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/busybox-1.22.0/rm-1.i [2023-11-19 03:33:37,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:33:38,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:33:38,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/sv-benchmarks/c/busybox-1.22.0/rm-1.i [2023-11-19 03:33:38,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/data/cbbce4d8b/52996630a5054582bc4ceaf088b00929/FLAG3305b8fce [2023-11-19 03:33:38,182 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/data/cbbce4d8b/52996630a5054582bc4ceaf088b00929 [2023-11-19 03:33:38,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:33:38,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:33:38,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:33:38,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:33:38,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:33:38,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:33:38" (1/1) ... [2023-11-19 03:33:38,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f23cd0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:38, skipping insertion in model container [2023-11-19 03:33:38,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:33:38" (1/1) ... [2023-11-19 03:33:38,358 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:33:40,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:33:40,804 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:33:41,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:33:41,386 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:33:41,386 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:33:41,386 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:33:41,387 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:33:41,387 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:33:41,396 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:33:41,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41 WrapperNode [2023-11-19 03:33:41,397 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:33:41,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:33:41,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:33:41,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:33:41,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:41,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:41,759 INFO L138 Inliner]: procedures = 665, calls = 522, calls flagged for inlining = 86, calls inlined = 264, statements flattened = 7255 [2023-11-19 03:33:41,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:33:41,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:33:41,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:33:41,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:33:41,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:41,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:41,839 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:41,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:42,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:42,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:42,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:42,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:42,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:33:42,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:33:42,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:33:42,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:33:42,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:33:41" (1/1) ... [2023-11-19 03:33:42,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:33:42,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:33:42,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:33:42,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aafce1-b280-4e88-b7ce-82a0b669190a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 03:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 03:33:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 03:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 03:33:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:33:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:33:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 03:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 03:33:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure remove_file [2023-11-19 03:33:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_file [2023-11-19 03:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-19 03:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:33:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-19 03:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 03:33:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:33:43,143 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:33:43,146 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:33:54,142 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:33:57,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:33:57,043 INFO L302 CfgBuilder]: Removed 134 assume(true) statements. [2023-11-19 03:33:57,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:33:57 BoogieIcfgContainer [2023-11-19 03:33:57,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:33:57,074 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:33:57,075 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:33:57,086 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:33:57,087 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:33:57" (1/1) ... [2023-11-19 03:33:57,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:33:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 3948 states and 4537 transitions. [2023-11-19 03:33:57,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3948 states and 4537 transitions. [2023-11-19 03:33:57,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 03:33:57,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:57,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:58,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 3947 states and 4536 transitions. [2023-11-19 03:33:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4536 transitions. [2023-11-19 03:33:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 03:33:58,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:58,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:58,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 3946 states and 4535 transitions. [2023-11-19 03:33:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 4535 transitions. [2023-11-19 03:33:58,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:33:58,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:58,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4534 states to 3945 states and 4534 transitions. [2023-11-19 03:33:58,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 4534 transitions. [2023-11-19 03:33:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:33:58,902 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:59,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 3946 states and 4536 transitions. [2023-11-19 03:33:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 4536 transitions. [2023-11-19 03:33:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:33:59,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:59,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:33:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:33:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 3948 states and 4538 transitions. [2023-11-19 03:33:59,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3948 states and 4538 transitions. [2023-11-19 03:33:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:33:59,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:33:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:33:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:33:59,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 3949 states and 4540 transitions. [2023-11-19 03:34:00,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4540 transitions. [2023-11-19 03:34:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:34:00,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:00,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:01,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 3951 states and 4543 transitions. [2023-11-19 03:34:01,405 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 4543 transitions. [2023-11-19 03:34:01,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:34:01,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:01,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:01,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 3953 states and 4547 transitions. [2023-11-19 03:34:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 4547 transitions. [2023-11-19 03:34:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:34:01,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:01,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:02,352 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:03,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 3955 states and 4551 transitions. [2023-11-19 03:34:03,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3955 states and 4551 transitions. [2023-11-19 03:34:03,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:34:03,059 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:03,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4538 states to 3949 states and 4538 transitions. [2023-11-19 03:34:04,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4538 transitions. [2023-11-19 03:34:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:34:04,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:04,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:04,491 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:05,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4540 states to 3951 states and 4540 transitions. [2023-11-19 03:34:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 4540 transitions. [2023-11-19 03:34:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:34:05,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:05,281 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 3953 states and 4542 transitions. [2023-11-19 03:34:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 4542 transitions. [2023-11-19 03:34:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:34:05,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 03:34:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 3952 states and 4541 transitions. [2023-11-19 03:34:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4541 transitions. [2023-11-19 03:34:09,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:34:09,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:09,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:10,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:10,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 3954 states and 4543 transitions. [2023-11-19 03:34:10,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 4543 transitions. [2023-11-19 03:34:10,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:34:10,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:10,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:11,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 3956 states and 4545 transitions. [2023-11-19 03:34:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 4545 transitions. [2023-11-19 03:34:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:34:11,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:11,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:12,313 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 3958 states and 4547 transitions. [2023-11-19 03:34:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 4547 transitions. [2023-11-19 03:34:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:34:13,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:13,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 3960 states and 4549 transitions. [2023-11-19 03:34:14,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 4549 transitions. [2023-11-19 03:34:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:34:14,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:14,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:15,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:15,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4550 states to 3962 states and 4550 transitions. [2023-11-19 03:34:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 4550 transitions. [2023-11-19 03:34:15,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:34:15,422 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:15,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.