./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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 3f0f6dc4c69710f9b49146a091b787943673df7efabfa4cf3572482098bcc06e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:50:32,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:50:32,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-03 02:50:32,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:50:32,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:50:32,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:50:32,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:50:32,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:50:32,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:50:32,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:50:32,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:50:32,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:50:32,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:50:32,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:50:32,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:50:32,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:50:32,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:50:32,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:50:32,167 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:50:32,168 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:50:32,168 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:50:32,171 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:50:32,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:50:32,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:50:32,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:50:32,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:50:32,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:50:32,173 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:50:32,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:50:32,174 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:50:32,174 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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f0f6dc4c69710f9b49146a091b787943673df7efabfa4cf3572482098bcc06e [2023-12-03 02:50:32,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:50:32,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:50:32,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:50:32,399 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:50:32,400 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:50:32,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c [2023-12-03 02:50:35,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:50:35,521 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:50:35,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c [2023-12-03 02:50:35,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data/caa52a350/fb21fcf9f8ac479c92f5b128f590ccb8/FLAGe8840e374 [2023-12-03 02:50:35,558 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data/caa52a350/fb21fcf9f8ac479c92f5b128f590ccb8 [2023-12-03 02:50:35,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:50:35,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:50:35,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:50:35,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:50:35,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:50:35,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:50:35" (1/1) ... [2023-12-03 02:50:35,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5803a699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:35, skipping insertion in model container [2023-12-03 02:50:35,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:50:35" (1/1) ... [2023-12-03 02:50:35,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:50:35,906 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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c[1177,1190] [2023-12-03 02:50:36,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:50:36,435 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:50:36,445 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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c[1177,1190] [2023-12-03 02:50:36,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:50:36,770 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:50:36,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36 WrapperNode [2023-12-03 02:50:36,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:50:36,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:50:36,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:50:36,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:50:36,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:36,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:38,204 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18079 [2023-12-03 02:50:38,204 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:50:38,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:50:38,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:50:38,205 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:50:38,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:38,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:38,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:38,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:38,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:39,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:39,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:39,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:39,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:50:39,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:50:39,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:50:39,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:50:39,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:50:36" (1/1) ... [2023-12-03 02:50:39,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:50:39,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:50:39,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:50:39,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:50:39,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:50:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:50:39,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:50:39,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:50:40,585 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:50:40,587 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:50:51,042 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:51:22,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:51:22,479 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:51:22,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:51:22 BoogieIcfgContainer [2023-12-03 02:51:22,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:51:22,482 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:51:22,482 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:51:22,489 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:51:22,489 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:51:22" (1/1) ... [2023-12-03 02:51:22,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:51:22,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:51:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 02:51:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 02:51:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 02:51:22,535 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:51:22,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:51:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:51:35,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:51:46,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:51:56,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:52:01,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:07,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:11,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:21,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:52:21,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-03 02:52:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-03 02:52:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:52:21,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:21,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:52:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 02:52:34,857 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) [2023-12-03 02:52:34,861 INFO L158 Benchmark]: Toolchain (without parser) took 119298.20ms. Allocated memory was 134.2MB in the beginning and 6.5GB in the end (delta: 6.4GB). Free memory was 101.4MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-12-03 02:52:34,862 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:52:34,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1207.61ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 101.1MB in the beginning and 85.5MB in the end (delta: 15.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2023-12-03 02:52:34,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 1432.49ms. Allocated memory was 184.5MB in the beginning and 457.2MB in the end (delta: 272.6MB). Free memory was 85.5MB in the beginning and 190.1MB in the end (delta: -104.6MB). Peak memory consumption was 209.9MB. Max. memory is 16.1GB. [2023-12-03 02:52:34,864 INFO L158 Benchmark]: Boogie Preprocessor took 1540.71ms. Allocated memory is still 457.2MB. Free memory was 190.1MB in the beginning and 105.4MB in the end (delta: 84.7MB). Peak memory consumption was 111.1MB. Max. memory is 16.1GB. [2023-12-03 02:52:34,865 INFO L158 Benchmark]: RCFGBuilder took 42734.37ms. Allocated memory was 457.2MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 105.4MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2023-12-03 02:52:34,866 INFO L158 Benchmark]: CodeCheck took 72378.43ms. Allocated memory was 6.0GB in the beginning and 6.5GB in the end (delta: 513.8MB). Free memory was 4.6GB in the beginning and 5.4GB in the end (delta: -852.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:52:34,871 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 0.15ms. Allocated memory is still 94.4MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1207.61ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 101.1MB in the beginning and 85.5MB in the end (delta: 15.7MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1432.49ms. Allocated memory was 184.5MB in the beginning and 457.2MB in the end (delta: 272.6MB). Free memory was 85.5MB in the beginning and 190.1MB in the end (delta: -104.6MB). Peak memory consumption was 209.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1540.71ms. Allocated memory is still 457.2MB. Free memory was 190.1MB in the beginning and 105.4MB in the end (delta: 84.7MB). Peak memory consumption was 111.1MB. Max. memory is 16.1GB. * RCFGBuilder took 42734.37ms. Allocated memory was 457.2MB in the beginning and 6.0GB in the end (delta: 5.6GB). Free memory was 105.4MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * CodeCheck took 72378.43ms. Allocated memory was 6.0GB in the beginning and 6.5GB in the end (delta: 513.8MB). Free memory was 4.6GB in the beginning and 5.4GB in the end (delta: -852.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 02:52:35,085 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-03 02:52:35,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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 3f0f6dc4c69710f9b49146a091b787943673df7efabfa4cf3572482098bcc06e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:52:37,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:52:37,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-03 02:52:37,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:52:37,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:52:37,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:52:37,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:52:37,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:52:37,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:52:37,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:52:37,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:52:37,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:52:37,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:52:37,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:52:37,257 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:52:37,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:52:37,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:52:37,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:52:37,260 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:52:37,260 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:52:37,261 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:52:37,261 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:52:37,262 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:52:37,262 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:52:37,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:52:37,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:52:37,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:52:37,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:52:37,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:52:37,265 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:52:37,265 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:52:37,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:52:37,266 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:52:37,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:52:37,267 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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f0f6dc4c69710f9b49146a091b787943673df7efabfa4cf3572482098bcc06e [2023-12-03 02:52:37,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:52:37,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:52:37,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:52:37,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:52:37,579 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:52:37,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c [2023-12-03 02:52:40,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:52:40,785 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:52:40,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c [2023-12-03 02:52:40,809 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data/c3974aac2/903dee7368434dbd91e896b483fea950/FLAG871b71154 [2023-12-03 02:52:40,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/data/c3974aac2/903dee7368434dbd91e896b483fea950 [2023-12-03 02:52:40,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:52:40,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:52:40,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:52:40,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:52:40,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:52:40,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:52:40" (1/1) ... [2023-12-03 02:52:40,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d5cd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:40, skipping insertion in model container [2023-12-03 02:52:40,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:52:40" (1/1) ... [2023-12-03 02:52:40,935 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:52:41,144 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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c[1177,1190] [2023-12-03 02:52:41,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:52:41,575 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:52:41,585 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_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.5.prop1-back-serstep.c[1177,1190] [2023-12-03 02:52:41,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:52:41,840 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:52:41,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41 WrapperNode [2023-12-03 02:52:41,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:52:41,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:52:41,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:52:41,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:52:41,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:41,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,045 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4010 [2023-12-03 02:52:42,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:52:42,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:52:42,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:52:42,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:52:42,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:52:42,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:52:42,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:52:42,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:52:42,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:52:41" (1/1) ... [2023-12-03 02:52:42,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:52:42,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:52:42,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:52:42,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:52:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:52:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:52:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:52:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:52:42,968 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:52:42,971 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:52:59,008 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:52:59,235 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:52:59,236 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:52:59,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:52:59 BoogieIcfgContainer [2023-12-03 02:52:59,238 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:52:59,239 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:52:59,239 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:52:59,250 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:52:59,250 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:52:59" (1/1) ... [2023-12-03 02:52:59,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:52:59,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:52:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-03 02:52:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-03 02:52:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 02:52:59,315 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:52:59,315 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:52:59,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:52:59,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:52:59,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:53:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:00,497 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:53:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:00,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:53:00,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:53:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:53:01,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:53:12,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:22,307 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 [] [2023-12-03 02:53:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:53:22,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-03 02:53:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-03 02:53:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:53:22,947 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:53:22,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:53:22,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:53:22,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:53:22,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:53:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:31,103 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:53:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:53:33,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 99 conjunts are in the unsatisfiable core [2023-12-03 02:53:33,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:53:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:53:34,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:53:46,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:53:58,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:11,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:21,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:31,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:37,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.64s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:54:50,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:02,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:12,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:55:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:55:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-03 02:55:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-03 02:55:12,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:55:12,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:55:12,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:55:12,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:55:12,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:55:12,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 02:55:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:27,714 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:55:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:55:32,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 6244 conjuncts, 452 conjunts are in the unsatisfiable core [2023-12-03 02:55:32,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:56:07,480 WARN L293 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 773 DAG size of output: 767 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:56:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:56:08,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 02:56:15,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:25,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:35,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:56:58,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:08,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:18,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:22,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:38,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:57:51,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:01,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:11,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:31,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:41,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:58:51,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:01,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:11,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:21,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:31,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:38,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 02:59:54,050 WARN L293 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 775 DAG size of output: 773 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 03:00:50,897 WARN L293 SmtUtils]: Spent 11.61s on a formula simplification. DAG size of input: 777 DAG size of output: 773 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 03:01:32,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:02:08,658 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 774 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 03:02:20,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:02:30,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:02:41,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:02:46,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-03 03:02:47,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:02:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2023-12-03 03:02:47,339 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2023-12-03 03:02:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:02:47,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:02:47,339 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:02:47,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:02:47,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:02:47,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 03:03:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:02,141 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:03:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:03:07,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 6244 conjuncts, 452 conjunts are in the unsatisfiable core [2023-12-03 03:03:07,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:03:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:03:13,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 03:03:22,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:03:38,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:03:48,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:03:58,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:04:02,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 03:04:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:04:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 20 states and 46 transitions. [2023-12-03 03:04:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 46 transitions. [2023-12-03 03:04:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:04:03,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:04:03,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:04:03,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:04:03,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:04:03,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a6f19b-ed87-46c1-8c1d-a6b6ac88b7dd/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 03:04:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:04:18,652 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported