./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ae56bcfc435405d456e1dc5e8920e6da28d699f35561354769dbf7e31b8f91d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:36:27,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:36:27,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-21 18:36:27,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:36:27,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:36:27,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:36:27,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:36:27,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:36:27,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:36:27,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:36:27,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:36:27,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:36:27,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:36:27,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:36:27,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:36:27,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:36:27,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:36:27,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:36:27,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:36:27,955 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:36:27,955 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:36:27,956 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:36:27,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:36:27,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:36:27,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:36:27,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:36:27,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:36:27,959 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:36:27,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:36:27,960 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:36:27,962 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_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae56bcfc435405d456e1dc5e8920e6da28d699f35561354769dbf7e31b8f91d6 [2023-11-21 18:36:28,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:36:28,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:36:28,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:36:28,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:36:28,436 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:36:28,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c [2023-11-21 18:36:31,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:36:31,764 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:36:31,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c [2023-11-21 18:36:31,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data/43ba60aef/f481c4c0d25041abb777b6adc1fd6832/FLAGc89cd7cbb [2023-11-21 18:36:31,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data/43ba60aef/f481c4c0d25041abb777b6adc1fd6832 [2023-11-21 18:36:31,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:36:31,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:36:31,828 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:36:31,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:36:31,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:36:31,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:31" (1/1) ... [2023-11-21 18:36:31,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a311449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:31, skipping insertion in model container [2023-11-21 18:36:31,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:31" (1/1) ... [2023-11-21 18:36:31,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:36:32,083 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c[1260,1273] [2023-11-21 18:36:32,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:36:32,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:36:32,188 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c[1260,1273] [2023-11-21 18:36:32,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:36:32,230 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:36:32,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32 WrapperNode [2023-11-21 18:36:32,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:36:32,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:36:32,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:36:32,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:36:32,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,305 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 189 [2023-11-21 18:36:32,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:36:32,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:36:32,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:36:32,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:36:32,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:36:32,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:36:32,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:36:32,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:36:32,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:32" (1/1) ... [2023-11-21 18:36:32,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:36:32,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:36:32,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:36:32,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:36:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:36:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:36:32,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:36:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:36:32,620 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:36:32,622 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:36:33,186 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:36:33,477 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:36:33,477 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:36:33,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:33 BoogieIcfgContainer [2023-11-21 18:36:33,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:36:33,480 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:36:33,480 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:36:33,491 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:36:33,491 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:33" (1/1) ... [2023-11-21 18:36:33,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:36:33,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-21 18:36:33,552 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-21 18:36:33,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:36:33,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:33,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-21 18:36:35,067 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-21 18:36:35,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:36:35,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:35,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-11-21 18:36:37,730 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-11-21 18:36:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:36:37,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:37,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:44,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:44,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 19 states and 35 transitions. [2023-11-21 18:36:44,107 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 35 transitions. [2023-11-21 18:36:44,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:36:44,108 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:44,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:36:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:36:45,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:36:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:36:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:36:50,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:36:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:36:51,482 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-21 18:36:51,560 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 18:36:51,564 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 18:36:51,565 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 18:36:51,565 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 18:36:51,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:36:51 ImpRootNode [2023-11-21 18:36:51,581 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:36:51,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:36:51,582 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:36:51,582 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:36:51,583 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:33" (3/4) ... [2023-11-21 18:36:51,585 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:36:51,586 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:36:51,588 INFO L158 Benchmark]: Toolchain (without parser) took 19761.24ms. Allocated memory was 163.6MB in the beginning and 360.7MB in the end (delta: 197.1MB). Free memory was 135.7MB in the beginning and 306.1MB in the end (delta: -170.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2023-11-21 18:36:51,589 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:36:51,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.22ms. Allocated memory is still 163.6MB. Free memory was 135.5MB in the beginning and 126.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-21 18:36:51,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.03ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 121.5MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 18:36:51,592 INFO L158 Benchmark]: Boogie Preprocessor took 59.34ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 119.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:36:51,593 INFO L158 Benchmark]: RCFGBuilder took 1113.44ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 78.9MB in the end (delta: 40.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-21 18:36:51,598 INFO L158 Benchmark]: CodeCheck took 18100.69ms. Allocated memory was 163.6MB in the beginning and 360.7MB in the end (delta: 197.1MB). Free memory was 78.9MB in the beginning and 306.1MB in the end (delta: -227.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:36:51,600 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 360.7MB. Free memory is still 306.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:36:51,611 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 3 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 22]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 50. Possible FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 2); [L31] const SORT_2 msb_SORT_2 = (SORT_2)1 << (2 - 1); [L33] const SORT_2 var_5 = 0; [L34] const SORT_2 var_10 = 1; [L35] const SORT_2 var_17 = mask_SORT_2; [L37] SORT_1 input_3; [L38] SORT_1 input_4; [L40] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L40] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L41] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L41] SORT_2 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L43] SORT_2 init_8_arg_1 = var_5; [L44] state_6 = init_8_arg_1 [L45] SORT_2 init_9_arg_1 = var_5; [L46] state_7 = init_9_arg_1 VAL [init_8_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=3, msb_SORT_1=1, msb_SORT_2=2, state_6=0, state_7=0, var_10=1, var_17=3, var_5=0] [L49] input_3 = __VERIFIER_nondet_uchar() [L50] EXPR input_3 & mask_SORT_1 [L50] input_3 = input_3 & mask_SORT_1 [L51] input_4 = __VERIFIER_nondet_uchar() [L52] EXPR input_4 & mask_SORT_1 [L52] input_4 = input_4 & mask_SORT_1 [L54] SORT_1 var_22_arg_0 = input_3; [L55] SORT_1 var_22_arg_1 = input_4; [L56] EXPR var_22_arg_0 & var_22_arg_1 [L56] SORT_1 var_22 = ~(var_22_arg_0 & var_22_arg_1); [L57] EXPR var_22 & mask_SORT_1 [L57] var_22 = var_22 & mask_SORT_1 [L58] SORT_1 constr_23_arg_0 = var_22; [L59] CALL assume_abort_if_not(constr_23_arg_0) [L23] COND FALSE !(!cond) [L59] RET assume_abort_if_not(constr_23_arg_0) [L61] SORT_2 var_18_arg_0 = state_6; [L62] SORT_2 var_18_arg_1 = var_17; [L63] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L64] SORT_2 var_19_arg_0 = state_7; [L65] SORT_2 var_19_arg_1 = var_17; [L66] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L67] SORT_1 var_20_arg_0 = var_18; [L68] SORT_1 var_20_arg_1 = var_19; [L69] EXPR var_20_arg_0 & var_20_arg_1 [L69] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L70] EXPR var_20 & mask_SORT_1 [L70] var_20 = var_20 & mask_SORT_1 [L71] SORT_1 bad_21_arg_0 = var_20; [L72] CALL __VERIFIER_assert(!(bad_21_arg_0)) [L22] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L72] RET __VERIFIER_assert(!(bad_21_arg_0)) [L74] SORT_2 var_11_arg_0 = state_6; [L75] SORT_2 var_11_arg_1 = var_10; [L76] SORT_2 var_11 = var_11_arg_0 + var_11_arg_1; [L77] SORT_1 var_13_arg_0 = input_3; [L78] SORT_2 var_13_arg_1 = var_11; [L79] SORT_2 var_13_arg_2 = state_6; [L80] SORT_2 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L81] EXPR var_13 & mask_SORT_2 [L81] var_13 = var_13 & mask_SORT_2 [L82] SORT_2 next_15_arg_1 = var_13; [L83] SORT_2 var_12_arg_0 = state_7; [L84] SORT_2 var_12_arg_1 = var_10; [L85] SORT_2 var_12 = var_12_arg_0 + var_12_arg_1; [L86] SORT_1 var_14_arg_0 = input_4; [L87] SORT_2 var_14_arg_1 = var_12; [L88] SORT_2 var_14_arg_2 = state_7; [L89] SORT_2 var_14 = var_14_arg_0 ? var_14_arg_1 : var_14_arg_2; [L90] EXPR var_14 & mask_SORT_2 [L90] var_14 = var_14 & mask_SORT_2 [L91] SORT_2 next_16_arg_1 = var_14; [L93] state_6 = next_15_arg_1 [L94] state_7 = next_16_arg_1 VAL [bad_21_arg_0=0, constr_23_arg_0=1, init_8_arg_1=0, init_9_arg_1=0, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_2=3, msb_SORT_1=1, msb_SORT_2=2, next_15_arg_1=1, next_16_arg_1=1, state_6=1, state_7=1, var_10=1, var_11=1, var_11_arg_0=0, var_11_arg_1=1, var_12=1, var_12_arg_0=0, var_12_arg_1=1, var_13=1, var_13_arg_0=1, var_13_arg_1=1, var_13_arg_2=0, var_14=1, var_14_arg_0=1, var_14_arg_1=1, var_14_arg_2=0, var_17=3, var_18=0, var_18_arg_0=0, var_18_arg_1=3, var_19=0, var_19_arg_0=0, var_19_arg_1=3, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_22=1, var_22_arg_0=1, var_22_arg_1=1, var_5=0] [L49] input_3 = __VERIFIER_nondet_uchar() [L50] EXPR input_3 & mask_SORT_1 [L50] input_3 = input_3 & mask_SORT_1 [L51] input_4 = __VERIFIER_nondet_uchar() [L52] EXPR input_4 & mask_SORT_1 [L52] input_4 = input_4 & mask_SORT_1 [L54] SORT_1 var_22_arg_0 = input_3; [L55] SORT_1 var_22_arg_1 = input_4; [L56] EXPR var_22_arg_0 & var_22_arg_1 [L56] SORT_1 var_22 = ~(var_22_arg_0 & var_22_arg_1); [L57] EXPR var_22 & mask_SORT_1 [L57] var_22 = var_22 & mask_SORT_1 [L58] SORT_1 constr_23_arg_0 = var_22; [L59] CALL assume_abort_if_not(constr_23_arg_0) [L23] COND FALSE !(!cond) [L59] RET assume_abort_if_not(constr_23_arg_0) [L61] SORT_2 var_18_arg_0 = state_6; [L62] SORT_2 var_18_arg_1 = var_17; [L63] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L64] SORT_2 var_19_arg_0 = state_7; [L65] SORT_2 var_19_arg_1 = var_17; [L66] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L67] SORT_1 var_20_arg_0 = var_18; [L68] SORT_1 var_20_arg_1 = var_19; [L69] EXPR var_20_arg_0 & var_20_arg_1 [L69] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L70] EXPR var_20 & mask_SORT_1 [L70] var_20 = var_20 & mask_SORT_1 [L71] SORT_1 bad_21_arg_0 = var_20; [L72] CALL __VERIFIER_assert(!(bad_21_arg_0)) [L22] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L72] RET __VERIFIER_assert(!(bad_21_arg_0)) [L74] SORT_2 var_11_arg_0 = state_6; [L75] SORT_2 var_11_arg_1 = var_10; [L76] SORT_2 var_11 = var_11_arg_0 + var_11_arg_1; [L77] SORT_1 var_13_arg_0 = input_3; [L78] SORT_2 var_13_arg_1 = var_11; [L79] SORT_2 var_13_arg_2 = state_6; [L80] SORT_2 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L81] EXPR var_13 & mask_SORT_2 [L81] var_13 = var_13 & mask_SORT_2 [L82] SORT_2 next_15_arg_1 = var_13; [L83] SORT_2 var_12_arg_0 = state_7; [L84] SORT_2 var_12_arg_1 = var_10; [L85] SORT_2 var_12 = var_12_arg_0 + var_12_arg_1; [L86] SORT_1 var_14_arg_0 = input_4; [L87] SORT_2 var_14_arg_1 = var_12; [L88] SORT_2 var_14_arg_2 = state_7; [L89] SORT_2 var_14 = var_14_arg_0 ? var_14_arg_1 : var_14_arg_2; [L90] EXPR var_14 & mask_SORT_2 [L90] var_14 = var_14 & mask_SORT_2 [L91] SORT_2 next_16_arg_1 = var_14; [L93] state_6 = next_15_arg_1 [L94] state_7 = next_16_arg_1 VAL [bad_21_arg_0=0, constr_23_arg_0=1, init_8_arg_1=0, init_9_arg_1=0, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_2=3, msb_SORT_1=1, msb_SORT_2=2, next_15_arg_1=2, next_16_arg_1=2, state_6=2, state_7=2, var_10=1, var_11=2, var_11_arg_0=1, var_11_arg_1=1, var_12=2, var_12_arg_0=1, var_12_arg_1=1, var_13=2, var_13_arg_0=1, var_13_arg_1=2, var_13_arg_2=1, var_14=2, var_14_arg_0=1, var_14_arg_1=2, var_14_arg_2=1, var_17=3, var_18=0, var_18_arg_0=1, var_18_arg_1=3, var_19=0, var_19_arg_0=1, var_19_arg_1=3, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_22=1, var_22_arg_0=1, var_22_arg_1=1, var_5=0] [L49] input_3 = __VERIFIER_nondet_uchar() [L50] EXPR input_3 & mask_SORT_1 [L50] input_3 = input_3 & mask_SORT_1 [L51] input_4 = __VERIFIER_nondet_uchar() [L52] EXPR input_4 & mask_SORT_1 [L52] input_4 = input_4 & mask_SORT_1 [L54] SORT_1 var_22_arg_0 = input_3; [L55] SORT_1 var_22_arg_1 = input_4; [L56] EXPR var_22_arg_0 & var_22_arg_1 [L56] SORT_1 var_22 = ~(var_22_arg_0 & var_22_arg_1); [L57] EXPR var_22 & mask_SORT_1 [L57] var_22 = var_22 & mask_SORT_1 [L58] SORT_1 constr_23_arg_0 = var_22; [L59] CALL assume_abort_if_not(constr_23_arg_0) [L23] COND FALSE !(!cond) [L59] RET assume_abort_if_not(constr_23_arg_0) [L61] SORT_2 var_18_arg_0 = state_6; [L62] SORT_2 var_18_arg_1 = var_17; [L63] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L64] SORT_2 var_19_arg_0 = state_7; [L65] SORT_2 var_19_arg_1 = var_17; [L66] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L67] SORT_1 var_20_arg_0 = var_18; [L68] SORT_1 var_20_arg_1 = var_19; [L69] EXPR var_20_arg_0 & var_20_arg_1 [L69] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L70] EXPR var_20 & mask_SORT_1 [L70] var_20 = var_20 & mask_SORT_1 [L71] SORT_1 bad_21_arg_0 = var_20; [L72] CALL __VERIFIER_assert(!(bad_21_arg_0)) [L22] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L72] RET __VERIFIER_assert(!(bad_21_arg_0)) [L74] SORT_2 var_11_arg_0 = state_6; [L75] SORT_2 var_11_arg_1 = var_10; [L76] SORT_2 var_11 = var_11_arg_0 + var_11_arg_1; [L77] SORT_1 var_13_arg_0 = input_3; [L78] SORT_2 var_13_arg_1 = var_11; [L79] SORT_2 var_13_arg_2 = state_6; [L80] SORT_2 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L81] EXPR var_13 & mask_SORT_2 [L81] var_13 = var_13 & mask_SORT_2 [L82] SORT_2 next_15_arg_1 = var_13; [L83] SORT_2 var_12_arg_0 = state_7; [L84] SORT_2 var_12_arg_1 = var_10; [L85] SORT_2 var_12 = var_12_arg_0 + var_12_arg_1; [L86] SORT_1 var_14_arg_0 = input_4; [L87] SORT_2 var_14_arg_1 = var_12; [L88] SORT_2 var_14_arg_2 = state_7; [L89] SORT_2 var_14 = var_14_arg_0 ? var_14_arg_1 : var_14_arg_2; [L90] EXPR var_14 & mask_SORT_2 [L90] var_14 = var_14 & mask_SORT_2 [L91] SORT_2 next_16_arg_1 = var_14; [L93] state_6 = next_15_arg_1 [L94] state_7 = next_16_arg_1 VAL [bad_21_arg_0=0, constr_23_arg_0=1, init_8_arg_1=0, init_9_arg_1=0, input_3=1, input_4=1, mask_SORT_1=1, mask_SORT_2=3, msb_SORT_1=1, msb_SORT_2=2, next_15_arg_1=3, next_16_arg_1=3, state_6=3, state_7=3, var_10=1, var_11=3, var_11_arg_0=2, var_11_arg_1=1, var_12=3, var_12_arg_0=2, var_12_arg_1=1, var_13=3, var_13_arg_0=1, var_13_arg_1=3, var_13_arg_2=2, var_14=3, var_14_arg_0=1, var_14_arg_1=3, var_14_arg_2=2, var_17=3, var_18=0, var_18_arg_0=2, var_18_arg_1=3, var_19=0, var_19_arg_0=2, var_19_arg_1=3, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_22=1, var_22_arg_0=1, var_22_arg_1=1, var_5=0] [L49] input_3 = __VERIFIER_nondet_uchar() [L50] EXPR input_3 & mask_SORT_1 [L50] input_3 = input_3 & mask_SORT_1 [L51] input_4 = __VERIFIER_nondet_uchar() [L52] EXPR input_4 & mask_SORT_1 [L52] input_4 = input_4 & mask_SORT_1 [L54] SORT_1 var_22_arg_0 = input_3; [L55] SORT_1 var_22_arg_1 = input_4; [L56] EXPR var_22_arg_0 & var_22_arg_1 [L56] SORT_1 var_22 = ~(var_22_arg_0 & var_22_arg_1); [L57] EXPR var_22 & mask_SORT_1 [L57] var_22 = var_22 & mask_SORT_1 [L58] SORT_1 constr_23_arg_0 = var_22; [L59] CALL assume_abort_if_not(constr_23_arg_0) [L23] COND FALSE !(!cond) [L59] RET assume_abort_if_not(constr_23_arg_0) [L61] SORT_2 var_18_arg_0 = state_6; [L62] SORT_2 var_18_arg_1 = var_17; [L63] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L64] SORT_2 var_19_arg_0 = state_7; [L65] SORT_2 var_19_arg_1 = var_17; [L66] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L67] SORT_1 var_20_arg_0 = var_18; [L68] SORT_1 var_20_arg_1 = var_19; [L69] EXPR var_20_arg_0 & var_20_arg_1 [L69] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L70] EXPR var_20 & mask_SORT_1 [L70] var_20 = var_20 & mask_SORT_1 [L71] SORT_1 bad_21_arg_0 = var_20; [L72] CALL __VERIFIER_assert(!(bad_21_arg_0)) [L22] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L22] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.22ms. Allocated memory is still 163.6MB. Free memory was 135.5MB in the beginning and 126.6MB in the end (delta: 8.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.03ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 121.5MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.34ms. Allocated memory is still 163.6MB. Free memory was 121.5MB in the beginning and 119.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1113.44ms. Allocated memory is still 163.6MB. Free memory was 119.4MB in the beginning and 78.9MB in the end (delta: 40.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * CodeCheck took 18100.69ms. Allocated memory was 163.6MB in the beginning and 360.7MB in the end (delta: 197.1MB). Free memory was 78.9MB in the beginning and 306.1MB in the end (delta: -227.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 360.7MB. Free memory is still 306.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:36:51,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ae56bcfc435405d456e1dc5e8920e6da28d699f35561354769dbf7e31b8f91d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:36:54,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:36:54,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-21 18:36:54,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:36:54,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:36:54,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:36:54,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:36:54,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:36:54,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:36:54,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:36:54,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:36:54,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:36:54,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:36:54,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:36:54,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:36:54,422 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:36:54,423 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:36:54,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:36:54,423 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:36:54,425 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:36:54,425 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:36:54,426 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:36:54,426 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:36:54,427 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:36:54,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:36:54,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:36:54,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:36:54,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:36:54,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:36:54,429 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:36:54,431 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:36:54,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:36:54,431 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:36:54,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:36:54,432 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae56bcfc435405d456e1dc5e8920e6da28d699f35561354769dbf7e31b8f91d6 [2023-11-21 18:36:54,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:36:54,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:36:54,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:36:54,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:36:54,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:36:54,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c [2023-11-21 18:36:57,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:36:58,245 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:36:58,246 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c [2023-11-21 18:36:58,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data/954848e97/f7772d0dff024a8db6c914a8c95105c1/FLAG8aa46c71b [2023-11-21 18:36:58,284 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/data/954848e97/f7772d0dff024a8db6c914a8c95105c1 [2023-11-21 18:36:58,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:36:58,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:36:58,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:36:58,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:36:58,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:36:58,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da4e9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58, skipping insertion in model container [2023-11-21 18:36:58,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:36:58,540 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c[1260,1273] [2023-11-21 18:36:58,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:36:58,591 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:36:58,603 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount2c.c[1260,1273] [2023-11-21 18:36:58,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:36:58,642 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:36:58,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58 WrapperNode [2023-11-21 18:36:58,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:36:58,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:36:58,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:36:58,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:36:58,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,704 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2023-11-21 18:36:58,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:36:58,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:36:58,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:36:58,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:36:58,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:36:58,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:36:58,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:36:58,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:36:58,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:36:58" (1/1) ... [2023-11-21 18:36:58,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:36:58,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:36:58,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:36:58,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:36:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:36:58,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:36:58,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:36:58,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:36:59,028 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:36:59,031 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:36:59,337 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:36:59,450 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:36:59,451 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:36:59,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:59 BoogieIcfgContainer [2023-11-21 18:36:59,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:36:59,454 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:36:59,454 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:36:59,467 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:36:59,468 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:36:59" (1/1) ... [2023-11-21 18:36:59,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:36:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-21 18:36:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-21 18:36:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:36:59,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:59,537 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:36:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:36:59,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:36:59,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:36:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:59,655 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:36:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:36:59,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 18:36:59,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:36:59,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:36:59,865 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:36:59,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:36:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:36:59,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-21 18:36:59,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-21 18:36:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:36:59,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:36:59,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:36:59,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:36:59,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:00,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:37:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:00,144 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:37:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:00,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-21 18:37:00,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:00,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:00,640 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:37:00,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:37:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 12 states and 20 transitions. [2023-11-21 18:37:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 20 transitions. [2023-11-21 18:37:01,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:37:01,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:01,381 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:01,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:37:01,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:01,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-21 18:37:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:01,530 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:37:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:01,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-21 18:37:01,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:02,157 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:37:02,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-21 18:37:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:03,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 16 states and 31 transitions. [2023-11-21 18:37:03,129 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 31 transitions. [2023-11-21 18:37:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:37:03,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:03,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:03,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:37:03,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:03,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-21 18:37:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:03,297 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:37:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:03,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-21 18:37:03,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:03,692 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:03,698 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:37:03,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-21 18:37:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2023-11-21 18:37:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2023-11-21 18:37:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:37:03,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:03,954 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:03,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:37:03,956 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:03,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-21 18:37:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:04,122 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:37:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:04,181 WARN L260 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 90 conjunts are in the unsatisfiable core [2023-11-21 18:37:04,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:06,832 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:37:06,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-21 18:37:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 25 states and 55 transitions. [2023-11-21 18:37:12,178 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 55 transitions. [2023-11-21 18:37:12,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:37:12,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:12,179 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:12,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:37:12,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:12,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-21 18:37:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:12,330 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:37:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:37:12,397 WARN L260 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 90 conjunts are in the unsatisfiable core [2023-11-21 18:37:12,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:37:14,285 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:37:14,287 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:37:14,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-21 18:37:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 27 states and 61 transitions. [2023-11-21 18:37:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 61 transitions. [2023-11-21 18:37:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 18:37:15,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:15,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:15,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:37:15,080 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:15,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c37df0-41a3-4425-89f9-ec52eddd7974/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process