./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi --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 1f88bd3867028d60c5c1c8fa67c55aaa517a9782eae2d2c8498cbbc5893e8cf0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:10:03,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:10:03,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-24 23:10:03,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:10:03,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:10:03,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:10:03,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:10:03,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:10:03,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:10:03,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:10:03,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:10:03,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:10:03,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:10:03,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:10:03,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:10:03,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:10:03,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:10:03,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:10:03,476 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:10:03,477 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:10:03,478 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:10:03,478 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:10:03,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:10:03,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:03,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:10:03,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:10:03,480 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:10:03,481 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:10:03,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:10:03,482 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:10:03,483 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_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f88bd3867028d60c5c1c8fa67c55aaa517a9782eae2d2c8498cbbc5893e8cf0 [2023-11-24 23:10:03,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:10:03,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:10:03,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:10:03,796 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:10:03,797 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:10:03,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c [2023-11-24 23:10:06,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:10:07,214 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:10:07,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c [2023-11-24 23:10:07,224 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data/613df4919/6776d7e03dc947d1af6fb6e0c78beebf/FLAG94226af19 [2023-11-24 23:10:07,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data/613df4919/6776d7e03dc947d1af6fb6e0c78beebf [2023-11-24 23:10:07,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:10:07,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:10:07,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:07,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:10:07,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:10:07,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c287647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07, skipping insertion in model container [2023-11-24 23:10:07,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,293 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:10:07,455 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_6b8d2931-3bc3-484a-bee6-f084e5b479d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c[1260,1273] [2023-11-24 23:10:07,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:07,505 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:10:07,520 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_6b8d2931-3bc3-484a-bee6-f084e5b479d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c[1260,1273] [2023-11-24 23:10:07,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:07,561 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:10:07,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07 WrapperNode [2023-11-24 23:10:07,562 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:07,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:07,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:10:07,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:10:07,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,642 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 144 [2023-11-24 23:10:07,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:07,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:10:07,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:10:07,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:10:07,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:10:07,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:10:07,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:10:07,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:10:07,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:07" (1/1) ... [2023-11-24 23:10:07,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:07,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:10:07,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:10:07,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:10:07,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:10:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:10:07,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:10:07,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:10:07,859 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:10:07,861 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:10:08,249 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:10:08,651 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:10:08,652 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:10:08,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:08 BoogieIcfgContainer [2023-11-24 23:10:08,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:10:08,656 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:10:08,656 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:10:08,668 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:10:08,670 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:08" (1/1) ... [2023-11-24 23:10:08,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:10:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-24 23:10:08,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-24 23:10:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:10:08,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:09,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-24 23:10:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-24 23:10:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:10:09,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:09,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2023-11-24 23:10:12,584 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2023-11-24 23:10:12,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:10:12,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:12,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2023-11-24 23:10:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2023-11-24 23:10:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:10:17,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:17,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:10:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:10:18,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:10:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:10:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:10:23,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:10:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:10:25,647 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-11-24 23:10:25,694 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-24 23:10:25,694 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-24 23:10:25,694 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-24 23:10:25,695 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-24 23:10:25,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:10:25 ImpRootNode [2023-11-24 23:10:25,707 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:10:25,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:10:25,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:10:25,708 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:10:25,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:08" (3/4) ... [2023-11-24 23:10:25,711 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:10:25,713 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:10:25,714 INFO L158 Benchmark]: Toolchain (without parser) took 18461.51ms. Allocated memory was 188.7MB in the beginning and 281.0MB in the end (delta: 92.3MB). Free memory was 142.3MB in the beginning and 142.0MB in the end (delta: 378.2kB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. [2023-11-24 23:10:25,715 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 146.8MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:10:25,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.66ms. Allocated memory is still 188.7MB. Free memory was 141.9MB in the beginning and 130.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:10:25,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.00ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 127.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:10:25,718 INFO L158 Benchmark]: Boogie Preprocessor took 44.34ms. Allocated memory is still 188.7MB. Free memory was 127.2MB in the beginning and 126.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:10:25,718 INFO L158 Benchmark]: RCFGBuilder took 965.93ms. Allocated memory is still 188.7MB. Free memory was 125.6MB in the beginning and 139.0MB in the end (delta: -13.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 23:10:25,720 INFO L158 Benchmark]: CodeCheck took 17050.97ms. Allocated memory was 188.7MB in the beginning and 281.0MB in the end (delta: 92.3MB). Free memory was 139.0MB in the beginning and 142.0MB in the end (delta: -2.9MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. [2023-11-24 23:10:25,720 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 281.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:10:25,724 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: 16.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 3 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 137 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 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 49. 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 - 32); [L31] const SORT_2 msb_SORT_2 = (SORT_2)1 << (32 - 1); [L33] const SORT_2 var_4 = 0; [L34] const SORT_2 var_9 = 1; [L35] const SORT_2 var_16 = 3; [L37] SORT_1 input_3; [L39] EXPR __VERIFIER_nondet_uint() & mask_SORT_2 [L39] SORT_2 state_5 = __VERIFIER_nondet_uint() & mask_SORT_2; [L40] EXPR __VERIFIER_nondet_uint() & mask_SORT_2 [L40] SORT_2 state_6 = __VERIFIER_nondet_uint() & mask_SORT_2; [L42] SORT_2 init_7_arg_1 = var_4; [L43] state_5 = init_7_arg_1 [L44] SORT_2 init_8_arg_1 = var_4; [L45] state_6 = init_8_arg_1 VAL [init_7_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_2=4294967295, msb_SORT_1=1, msb_SORT_2=2147483648, state_5=0, state_6=0, var_16=3, var_4=0, var_9=1] [L48] input_3 = __VERIFIER_nondet_uchar() [L49] EXPR input_3 & mask_SORT_1 [L49] input_3 = input_3 & mask_SORT_1 [L52] SORT_2 var_17_arg_0 = state_5; [L53] SORT_2 var_17_arg_1 = var_16; [L54] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L55] SORT_2 var_18_arg_0 = state_6; [L56] SORT_2 var_18_arg_1 = var_16; [L57] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L58] SORT_1 var_19_arg_0 = var_17; [L59] SORT_1 var_19_arg_1 = var_18; [L60] EXPR var_19_arg_0 & var_19_arg_1 [L60] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L61] EXPR var_19 & mask_SORT_1 [L61] var_19 = var_19 & mask_SORT_1 [L62] SORT_1 bad_20_arg_0 = var_19; [L63] CALL __VERIFIER_assert(!(bad_20_arg_0)) [L22] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L63] RET __VERIFIER_assert(!(bad_20_arg_0)) [L65] SORT_2 var_10_arg_0 = state_5; [L66] SORT_2 var_10_arg_1 = var_9; [L67] SORT_2 var_10 = var_10_arg_0 + var_10_arg_1; [L68] SORT_1 var_12_arg_0 = input_3; [L69] SORT_2 var_12_arg_1 = state_5; [L70] SORT_2 var_12_arg_2 = var_10; [L71] SORT_2 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L72] EXPR var_12 & mask_SORT_2 [L72] var_12 = var_12 & mask_SORT_2 [L73] SORT_2 next_14_arg_1 = var_12; [L74] SORT_2 var_11_arg_0 = state_6; [L75] SORT_2 var_11_arg_1 = var_9; [L76] SORT_2 var_11 = var_11_arg_0 + var_11_arg_1; [L77] SORT_1 var_13_arg_0 = ~input_3; [L78] EXPR var_13_arg_0 & mask_SORT_1 [L78] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L79] SORT_2 var_13_arg_1 = state_6; [L80] SORT_2 var_13_arg_2 = var_11; [L81] SORT_2 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L82] EXPR var_13 & mask_SORT_2 [L82] var_13 = var_13 & mask_SORT_2 [L83] SORT_2 next_15_arg_1 = var_13; [L85] state_5 = next_14_arg_1 [L86] state_6 = next_15_arg_1 VAL [bad_20_arg_0=0, init_7_arg_1=0, init_8_arg_1=0, input_3=0, mask_SORT_1=1, mask_SORT_2=4294967295, msb_SORT_1=1, msb_SORT_2=2147483648, next_14_arg_1=1, next_15_arg_1=1, state_5=1, state_6=1, var_10=1, var_10_arg_0=0, var_10_arg_1=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=0, var_12_arg_2=1, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_13_arg_2=1, var_16=3, var_17=0, var_17_arg_0=0, var_17_arg_1=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=0, var_4=0, var_9=1] [L48] input_3 = __VERIFIER_nondet_uchar() [L49] EXPR input_3 & mask_SORT_1 [L49] input_3 = input_3 & mask_SORT_1 [L52] SORT_2 var_17_arg_0 = state_5; [L53] SORT_2 var_17_arg_1 = var_16; [L54] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L55] SORT_2 var_18_arg_0 = state_6; [L56] SORT_2 var_18_arg_1 = var_16; [L57] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L58] SORT_1 var_19_arg_0 = var_17; [L59] SORT_1 var_19_arg_1 = var_18; [L60] EXPR var_19_arg_0 & var_19_arg_1 [L60] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L61] EXPR var_19 & mask_SORT_1 [L61] var_19 = var_19 & mask_SORT_1 [L62] SORT_1 bad_20_arg_0 = var_19; [L63] CALL __VERIFIER_assert(!(bad_20_arg_0)) [L22] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L63] RET __VERIFIER_assert(!(bad_20_arg_0)) [L65] SORT_2 var_10_arg_0 = state_5; [L66] SORT_2 var_10_arg_1 = var_9; [L67] SORT_2 var_10 = var_10_arg_0 + var_10_arg_1; [L68] SORT_1 var_12_arg_0 = input_3; [L69] SORT_2 var_12_arg_1 = state_5; [L70] SORT_2 var_12_arg_2 = var_10; [L71] SORT_2 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L72] EXPR var_12 & mask_SORT_2 [L72] var_12 = var_12 & mask_SORT_2 [L73] SORT_2 next_14_arg_1 = var_12; [L74] SORT_2 var_11_arg_0 = state_6; [L75] SORT_2 var_11_arg_1 = var_9; [L76] SORT_2 var_11 = var_11_arg_0 + var_11_arg_1; [L77] SORT_1 var_13_arg_0 = ~input_3; [L78] EXPR var_13_arg_0 & mask_SORT_1 [L78] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L79] SORT_2 var_13_arg_1 = state_6; [L80] SORT_2 var_13_arg_2 = var_11; [L81] SORT_2 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L82] EXPR var_13 & mask_SORT_2 [L82] var_13 = var_13 & mask_SORT_2 [L83] SORT_2 next_15_arg_1 = var_13; [L85] state_5 = next_14_arg_1 [L86] state_6 = next_15_arg_1 VAL [bad_20_arg_0=0, init_7_arg_1=0, init_8_arg_1=0, input_3=0, mask_SORT_1=1, mask_SORT_2=4294967295, msb_SORT_1=1, msb_SORT_2=2147483648, next_14_arg_1=2, next_15_arg_1=2, state_5=2, state_6=2, var_10=2, var_10_arg_0=1, var_10_arg_1=1, var_11=2, var_11_arg_0=1, var_11_arg_1=1, var_12=2, var_12_arg_0=0, var_12_arg_1=1, var_12_arg_2=2, var_13=2, var_13_arg_0=0, var_13_arg_1=1, var_13_arg_2=2, var_16=3, var_17=0, var_17_arg_0=1, var_17_arg_1=3, var_18=0, var_18_arg_0=1, var_18_arg_1=3, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_4=0, var_9=1] [L48] input_3 = __VERIFIER_nondet_uchar() [L49] EXPR input_3 & mask_SORT_1 [L49] input_3 = input_3 & mask_SORT_1 [L52] SORT_2 var_17_arg_0 = state_5; [L53] SORT_2 var_17_arg_1 = var_16; [L54] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L55] SORT_2 var_18_arg_0 = state_6; [L56] SORT_2 var_18_arg_1 = var_16; [L57] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L58] SORT_1 var_19_arg_0 = var_17; [L59] SORT_1 var_19_arg_1 = var_18; [L60] EXPR var_19_arg_0 & var_19_arg_1 [L60] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L61] EXPR var_19 & mask_SORT_1 [L61] var_19 = var_19 & mask_SORT_1 [L62] SORT_1 bad_20_arg_0 = var_19; [L63] CALL __VERIFIER_assert(!(bad_20_arg_0)) [L22] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L63] RET __VERIFIER_assert(!(bad_20_arg_0)) [L65] SORT_2 var_10_arg_0 = state_5; [L66] SORT_2 var_10_arg_1 = var_9; [L67] SORT_2 var_10 = var_10_arg_0 + var_10_arg_1; [L68] SORT_1 var_12_arg_0 = input_3; [L69] SORT_2 var_12_arg_1 = state_5; [L70] SORT_2 var_12_arg_2 = var_10; [L71] SORT_2 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L72] EXPR var_12 & mask_SORT_2 [L72] var_12 = var_12 & mask_SORT_2 [L73] SORT_2 next_14_arg_1 = var_12; [L74] SORT_2 var_11_arg_0 = state_6; [L75] SORT_2 var_11_arg_1 = var_9; [L76] SORT_2 var_11 = var_11_arg_0 + var_11_arg_1; [L77] SORT_1 var_13_arg_0 = ~input_3; [L78] EXPR var_13_arg_0 & mask_SORT_1 [L78] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L79] SORT_2 var_13_arg_1 = state_6; [L80] SORT_2 var_13_arg_2 = var_11; [L81] SORT_2 var_13 = var_13_arg_0 ? var_13_arg_1 : var_13_arg_2; [L82] EXPR var_13 & mask_SORT_2 [L82] var_13 = var_13 & mask_SORT_2 [L83] SORT_2 next_15_arg_1 = var_13; [L85] state_5 = next_14_arg_1 [L86] state_6 = next_15_arg_1 VAL [bad_20_arg_0=0, init_7_arg_1=0, init_8_arg_1=0, input_3=0, mask_SORT_1=1, mask_SORT_2=4294967295, msb_SORT_1=1, msb_SORT_2=2147483648, next_14_arg_1=3, next_15_arg_1=3, state_5=3, state_6=3, var_10=3, var_10_arg_0=2, var_10_arg_1=1, var_11=3, var_11_arg_0=2, var_11_arg_1=1, var_12=3, var_12_arg_0=0, var_12_arg_1=2, var_12_arg_2=3, var_13=3, var_13_arg_0=0, var_13_arg_1=2, var_13_arg_2=3, var_16=3, var_17=0, var_17_arg_0=2, var_17_arg_1=3, var_18=0, var_18_arg_0=2, var_18_arg_1=3, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_4=0, var_9=1] [L48] input_3 = __VERIFIER_nondet_uchar() [L49] EXPR input_3 & mask_SORT_1 [L49] input_3 = input_3 & mask_SORT_1 [L52] SORT_2 var_17_arg_0 = state_5; [L53] SORT_2 var_17_arg_1 = var_16; [L54] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L55] SORT_2 var_18_arg_0 = state_6; [L56] SORT_2 var_18_arg_1 = var_16; [L57] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L58] SORT_1 var_19_arg_0 = var_17; [L59] SORT_1 var_19_arg_1 = var_18; [L60] EXPR var_19_arg_0 & var_19_arg_1 [L60] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L61] EXPR var_19 & mask_SORT_1 [L61] var_19 = var_19 & mask_SORT_1 [L62] SORT_1 bad_20_arg_0 = var_19; [L63] CALL __VERIFIER_assert(!(bad_20_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 0.38ms. Allocated memory is still 146.8MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.66ms. Allocated memory is still 188.7MB. Free memory was 141.9MB in the beginning and 130.6MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.00ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 127.2MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.34ms. Allocated memory is still 188.7MB. Free memory was 127.2MB in the beginning and 126.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 965.93ms. Allocated memory is still 188.7MB. Free memory was 125.6MB in the beginning and 139.0MB in the end (delta: -13.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * CodeCheck took 17050.97ms. Allocated memory was 188.7MB in the beginning and 281.0MB in the end (delta: 92.3MB). Free memory was 139.0MB in the beginning and 142.0MB in the end (delta: -2.9MB). Peak memory consumption was 92.5MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 281.0MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:10:25,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi --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 1f88bd3867028d60c5c1c8fa67c55aaa517a9782eae2d2c8498cbbc5893e8cf0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:10:28,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:10:28,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-11-24 23:10:28,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:10:28,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:10:28,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:10:28,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:10:28,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:10:28,974 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:10:28,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:10:28,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:10:28,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:10:28,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:10:28,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:10:28,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:10:28,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:10:28,980 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:10:28,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:10:28,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:10:28,982 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:10:28,982 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:10:28,983 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:10:28,984 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:28,984 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:10:28,985 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:10:28,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:28,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:10:28,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:10:28,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:10:28,988 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:10:28,989 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:28,989 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:10:28,990 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:10:28,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:10:28,991 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_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f88bd3867028d60c5c1c8fa67c55aaa517a9782eae2d2c8498cbbc5893e8cf0 [2023-11-24 23:10:29,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:10:29,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:10:29,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:10:29,446 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:10:29,447 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:10:29,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c [2023-11-24 23:10:32,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:10:32,988 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:10:32,988 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c [2023-11-24 23:10:32,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data/cf13ece87/3cd0040ed702408882ae84d9813a43d0/FLAGb2b34b781 [2023-11-24 23:10:33,014 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/data/cf13ece87/3cd0040ed702408882ae84d9813a43d0 [2023-11-24 23:10:33,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:10:33,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:10:33,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:33,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:10:33,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:10:33,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd5f104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33, skipping insertion in model container [2023-11-24 23:10:33,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:10:33,213 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_6b8d2931-3bc3-484a-bee6-f084e5b479d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c[1260,1273] [2023-11-24 23:10:33,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:33,261 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:10:33,275 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_6b8d2931-3bc3-484a-bee6-f084e5b479d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.twocount32.c[1260,1273] [2023-11-24 23:10:33,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:10:33,316 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:10:33,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33 WrapperNode [2023-11-24 23:10:33,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:10:33,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:33,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:10:33,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:10:33,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,389 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-24 23:10:33,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:10:33,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:10:33,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:10:33,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:10:33,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,442 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:10:33,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:10:33,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:10:33,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:10:33,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:33,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:10:33,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:10:33,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:10:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:10:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:10:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:10:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:10:33,662 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:10:33,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:10:33,916 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:10:33,983 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:10:33,984 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:10:33,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:33 BoogieIcfgContainer [2023-11-24 23:10:33,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:10:33,987 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:10:33,987 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:10:33,998 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:10:33,998 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:10:33" (1/1) ... [2023-11-24 23:10:34,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:10:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:34,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-24 23:10:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-24 23:10:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:10:34,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:34,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:34,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:34,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:34,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:10:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:34,246 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:34,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-24 23:10:34,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:34,492 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:10:34,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:10:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-11-24 23:10:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-11-24 23:10:34,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:10:34,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:34,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:34,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:34,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:34,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:10:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:34,767 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:34,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 23:10:34,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:35,266 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:10:35,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:10:36,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 12 states and 20 transitions. [2023-11-24 23:10:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 20 transitions. [2023-11-24 23:10:36,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:10:36,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:36,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:36,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:36,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:10:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:36,301 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:36,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-24 23:10:36,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:36,973 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:36,976 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:10:36,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:10:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 16 states and 30 transitions. [2023-11-24 23:10:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 30 transitions. [2023-11-24 23:10:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:10:38,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:38,264 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:38,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:38,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:38,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:10:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:38,391 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:38,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-24 23:10:38,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:38,848 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:38,851 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:10:38,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:10:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 17 states and 31 transitions. [2023-11-24 23:10:39,162 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 31 transitions. [2023-11-24 23:10:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:10:39,162 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:39,163 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:39,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:39,164 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:39,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:10:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:39,332 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:39,395 WARN L260 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 78 conjunts are in the unsatisfiable core [2023-11-24 23:10:39,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:41,523 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:10:41,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:10:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:45,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 24 states and 45 transitions. [2023-11-24 23:10:45,733 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 45 transitions. [2023-11-24 23:10:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:10:45,734 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:45,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:45,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:45,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:45,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:10:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:45,896 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:45,947 WARN L260 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 78 conjunts are in the unsatisfiable core [2023-11-24 23:10:45,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:10:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:10:47,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-24 23:10:47,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:10:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 25 states and 46 transitions. [2023-11-24 23:10:47,705 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 46 transitions. [2023-11-24 23:10:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:10:47,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:10:47,706 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:10:47,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:10:47,712 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:10:47,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b8d2931-3bc3-484a-bee6-f084e5b479d4/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:10:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:47,921 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:10:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:10:47,990 WARN L260 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 102 conjunts are in the unsatisfiable core [2023-11-24 23:10:47,994 INFO L285 TraceCheckSpWp]: Computing forward predicates...