./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9 --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 6f032a278e247c25f95ab2bc0e622975c4cd6e35f7ad8b672dec44dde069d0ec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:07:53,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:07:53,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 21:07:53,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:07:53,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:07:53,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:07:53,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:07:53,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:07:53,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:07:53,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:07:53,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:07:53,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:07:53,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:07:53,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:07:53,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:07:53,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:07:53,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:07:53,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:07:53,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:07:53,414 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:07:53,415 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:07:53,415 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:07:53,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:07:53,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:07:53,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:07:53,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:07:53,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:07:53,418 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:07:53,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:07:53,419 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:07:53,419 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f032a278e247c25f95ab2bc0e622975c4cd6e35f7ad8b672dec44dde069d0ec [2023-12-02 21:07:53,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:07:53,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:07:53,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:07:53,662 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:07:53,663 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:07:53,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c [2023-12-02 21:07:56,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:07:56,824 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:07:56,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c [2023-12-02 21:07:56,872 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data/502046621/88d990114ed842eabc72180bb78efc31/FLAG4af9bbb0f [2023-12-02 21:07:56,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data/502046621/88d990114ed842eabc72180bb78efc31 [2023-12-02 21:07:56,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:07:56,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:07:56,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:07:56,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:07:56,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:07:56,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:07:56" (1/1) ... [2023-12-02 21:07:56,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca1990d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:56, skipping insertion in model container [2023-12-02 21:07:56,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:07:56" (1/1) ... [2023-12-02 21:07:57,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:07:57,332 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c[1175,1188] [2023-12-02 21:07:58,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:07:58,251 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:07:58,264 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c[1175,1188] [2023-12-02 21:07:59,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:07:59,038 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:07:59,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59 WrapperNode [2023-12-02 21:07:59,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:07:59,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:07:59,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:07:59,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:07:59,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:07:59,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:01,650 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37613 [2023-12-02 21:08:01,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:08:01,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:08:01,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:08:01,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:08:01,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:01,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:02,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:02,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:02,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:03,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:03,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:03,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:03,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:08:03,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:08:03,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:08:03,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:08:03,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:07:59" (1/1) ... [2023-12-02 21:08:03,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:08:03,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:08:03,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:08:03,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:08:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:08:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:08:03,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:08:03,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:08:05,684 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:08:05,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:08:32,167 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:09:48,817 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:09:48,818 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:09:48,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:09:48 BoogieIcfgContainer [2023-12-02 21:09:48,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:09:48,820 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:09:48,820 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:09:48,827 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:09:48,827 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:09:48" (1/1) ... [2023-12-02 21:09:48,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:09:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:09:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:09:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:09:48,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:48,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:09:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:14,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:10:25,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:10:30,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:10:41,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:10:42,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:10:52,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:02,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 21:11:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 21:11:02,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:11:02,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:11:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:11:18,380 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 21:11:18,383 INFO L158 Benchmark]: Toolchain (without parser) took 201491.10ms. Allocated memory was 148.9MB in the beginning and 10.9GB in the end (delta: 10.7GB). Free memory was 93.5MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2023-12-02 21:11:18,383 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 121.0MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:11:18,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2145.87ms. Allocated memory was 148.9MB in the beginning and 291.5MB in the end (delta: 142.6MB). Free memory was 93.5MB in the beginning and 83.6MB in the end (delta: 9.9MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. [2023-12-02 21:11:18,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 2610.64ms. Allocated memory was 291.5MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 83.6MB in the beginning and 767.9MB in the end (delta: -684.2MB). Peak memory consumption was 551.7MB. Max. memory is 16.1GB. [2023-12-02 21:11:18,385 INFO L158 Benchmark]: Boogie Preprocessor took 2272.75ms. Allocated memory was 1.4GB in the beginning and 4.2GB in the end (delta: 2.8GB). Free memory was 767.9MB in the beginning and 3.3GB in the end (delta: -2.6GB). Peak memory consumption was 254.8MB. Max. memory is 16.1GB. [2023-12-02 21:11:18,386 INFO L158 Benchmark]: RCFGBuilder took 104894.87ms. Allocated memory was 4.2GB in the beginning and 10.9GB in the end (delta: 6.7GB). Free memory was 3.3GB in the beginning and 8.8GB in the end (delta: -5.5GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. [2023-12-02 21:11:18,387 INFO L158 Benchmark]: CodeCheck took 89562.15ms. Allocated memory is still 10.9GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: -10.5MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-12-02 21:11:18,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 121.0MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2145.87ms. Allocated memory was 148.9MB in the beginning and 291.5MB in the end (delta: 142.6MB). Free memory was 93.5MB in the beginning and 83.6MB in the end (delta: 9.9MB). Peak memory consumption was 174.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 2610.64ms. Allocated memory was 291.5MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 83.6MB in the beginning and 767.9MB in the end (delta: -684.2MB). Peak memory consumption was 551.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 2272.75ms. Allocated memory was 1.4GB in the beginning and 4.2GB in the end (delta: 2.8GB). Free memory was 767.9MB in the beginning and 3.3GB in the end (delta: -2.6GB). Peak memory consumption was 254.8MB. Max. memory is 16.1GB. * RCFGBuilder took 104894.87ms. Allocated memory was 4.2GB in the beginning and 10.9GB in the end (delta: 6.7GB). Free memory was 3.3GB in the beginning and 8.8GB in the end (delta: -5.5GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. * CodeCheck took 89562.15ms. Allocated memory is still 10.9GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: -10.5MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:11:18,603 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 21:11:18,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9 --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 6f032a278e247c25f95ab2bc0e622975c4cd6e35f7ad8b672dec44dde069d0ec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:11:20,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:11:20,892 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 21:11:20,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:11:20,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:11:20,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:11:20,926 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:11:20,927 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:11:20,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:11:20,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:11:20,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:11:20,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:11:20,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:11:20,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:11:20,930 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:11:20,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:11:20,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:11:20,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:11:20,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:11:20,933 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:11:20,934 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:11:20,934 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:11:20,935 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:20,935 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:11:20,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:11:20,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:11:20,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:11:20,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:11:20,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:11:20,938 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:11:20,938 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:20,939 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:11:20,939 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:11:20,939 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:11:20,939 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f032a278e247c25f95ab2bc0e622975c4cd6e35f7ad8b672dec44dde069d0ec [2023-12-02 21:11:21,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:11:21,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:11:21,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:11:21,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:11:21,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:11:21,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c [2023-12-02 21:11:23,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:11:24,412 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:11:24,412 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c [2023-12-02 21:11:24,449 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data/26934cead/494cac5917964605a2ad36c7ef0b807d/FLAG238dd4181 [2023-12-02 21:11:24,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/data/26934cead/494cac5917964605a2ad36c7ef0b807d [2023-12-02 21:11:24,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:11:24,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:11:24,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:11:24,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:11:24,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:11:24,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:11:24" (1/1) ... [2023-12-02 21:11:24,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3818b438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:24, skipping insertion in model container [2023-12-02 21:11:24,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:11:24" (1/1) ... [2023-12-02 21:11:24,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:11:24,889 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c[1175,1188] [2023-12-02 21:11:25,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:11:25,663 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:11:25,674 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_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c[1175,1188] [2023-12-02 21:11:26,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:11:26,274 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:11:26,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26 WrapperNode [2023-12-02 21:11:26,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:11:26,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:11:26,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:11:26,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:11:26,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:26,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:26,838 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10307 [2023-12-02 21:11:26,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:11:26,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:11:26,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:11:26,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:11:26,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:26,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:26,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:26,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:27,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:27,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:27,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:27,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:27,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:11:27,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:11:27,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:11:27,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:11:27,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:26" (1/1) ... [2023-12-02 21:11:27,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:11:27,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:11:27,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:11:27,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:11:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:11:27,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:11:28,433 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:11:28,436 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:12:10,485 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:12:10,785 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:12:10,785 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:12:10,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:12:10 BoogieIcfgContainer [2023-12-02 21:12:10,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:12:10,787 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:12:10,787 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:12:10,794 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:12:10,794 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:12:10" (1/1) ... [2023-12-02 21:12:10,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:12:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:12:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:12:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:12:10,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:10,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:12:10,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:12:10,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:12:10,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:12:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:13,328 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:12:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:13,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:12:14,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:12:14,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:12:24,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:31,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.42s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 21:12:31,751 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 21:12:31,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:12:31,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:31,751 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:12:31,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:12:31,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:12:31,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:12:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:38,342 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:12:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:40,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 9008 conjuncts, 105 conjunts are in the unsatisfiable core [2023-12-02 21:12:40,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:12:41,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:12:52,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.85s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:03,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:14,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:24,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:28,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:40,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:51,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:57,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.80s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:57,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 21:13:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 21:13:57,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:13:57,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:57,575 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:57,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:57,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:57,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:14:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:09,534 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:14,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 17396 conjuncts, 560 conjunts are in the unsatisfiable core [2023-12-02 21:14:14,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:30,549 WARN L293 SmtUtils]: Spent 35.75s on a formula simplification. DAG size of input: 1106 DAG size of output: 1100 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:16:33,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:16:33,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b3afb1a-96d8-4bd1-9424-ea297eaf05fe/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:16:52,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:16:59,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:17:36,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:17:46,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:17:56,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.96s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:14,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:28,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:38,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:44,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.14s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:19:10,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:19:20,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:19:24,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:20:56,413 WARN L293 SmtUtils]: Spent 41.64s on a formula simplification. DAG size of input: 1108 DAG size of output: 1106 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)