./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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 a072fa15790aaba39e20c442760c9d267765479d5271eb7cb533cc45336c9e6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:10:13,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:10:13,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-12-02 21:10:13,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:10:13,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:10:13,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:10:13,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:10:13,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:10:13,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:10:13,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:10:13,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:10:13,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:10:13,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:10:13,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:10:13,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:10:13,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:10:13,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:10:13,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:10:13,167 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:10:13,167 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:10:13,168 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:10:13,169 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:10:13,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:10:13,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:10:13,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:10:13,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:10:13,171 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:10:13,171 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:10:13,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:10:13,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:10:13,173 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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a072fa15790aaba39e20c442760c9d267765479d5271eb7cb533cc45336c9e6e [2023-12-02 21:10:13,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:10:13,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:10:13,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:10:13,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:10:13,397 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:10:13,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c [2023-12-02 21:10:16,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:10:16,520 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:10:16,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c [2023-12-02 21:10:16,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data/e44924e30/782e7da0b0f345b8bdafdb3d0fe5cd30/FLAG0dfa5fa1b [2023-12-02 21:10:16,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data/e44924e30/782e7da0b0f345b8bdafdb3d0fe5cd30 [2023-12-02 21:10:16,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:10:16,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:10:16,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:10:16,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:10:16,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:10:16,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:10:16" (1/1) ... [2023-12-02 21:10:16,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7e2c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:16, skipping insertion in model container [2023-12-02 21:10:16,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:10:16" (1/1) ... [2023-12-02 21:10:16,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:10:16,792 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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c[1177,1190] [2023-12-02 21:10:17,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:10:17,214 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:10:17,225 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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c[1177,1190] [2023-12-02 21:10:17,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:10:17,481 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:10:17,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17 WrapperNode [2023-12-02 21:10:17,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:10:17,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:10:17,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:10:17,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:10:17,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:17,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,297 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10477 [2023-12-02 21:10:18,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:10:18,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:10:18,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:10:18,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:10:18,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:18,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:19,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:10:19,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:10:19,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:10:19,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:10:19,172 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:17" (1/1) ... [2023-12-02 21:10:19,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:10:19,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:10:19,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:10:19,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:10:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:10:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:10:19,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:10:19,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:10:19,753 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:10:19,755 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:10:26,772 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:10:41,786 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:10:41,786 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:10:41,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:10:41 BoogieIcfgContainer [2023-12-02 21:10:41,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:10:41,788 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:10:41,788 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:10:41,798 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:10:41,798 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:10:41" (1/1) ... [2023-12-02 21:10:41,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:10:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:10:41,854 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:10:41,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:10:41,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:41,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:10:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:45,652 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 21:10:56,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:11:06,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:11:09,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:16,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:19,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:29,827 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 [] [2023-12-02 21:11:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-12-02 21:11:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-12-02 21:11:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:11:29,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:29,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:11:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:11:41,655 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 21:11:41,659 INFO L158 Benchmark]: Toolchain (without parser) took 85104.84ms. Allocated memory was 157.3MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 107.0MB in the beginning and 2.8GB in the end (delta: -2.7GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-12-02 21:11:41,659 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:11:41,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 927.31ms. Allocated memory is still 157.3MB. Free memory was 107.0MB in the beginning and 88.6MB in the end (delta: 18.4MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. [2023-12-02 21:11:41,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 814.49ms. Allocated memory was 157.3MB in the beginning and 377.5MB in the end (delta: 220.2MB). Free memory was 88.6MB in the beginning and 197.4MB in the end (delta: -108.8MB). Peak memory consumption was 154.2MB. Max. memory is 16.1GB. [2023-12-02 21:11:41,661 INFO L158 Benchmark]: Boogie Preprocessor took 872.24ms. Allocated memory is still 377.5MB. Free memory was 197.4MB in the beginning and 148.6MB in the end (delta: 48.9MB). Peak memory consumption was 111.7MB. Max. memory is 16.1GB. [2023-12-02 21:11:41,662 INFO L158 Benchmark]: RCFGBuilder took 22616.66ms. Allocated memory was 377.5MB in the beginning and 4.2GB in the end (delta: 3.8GB). Free memory was 148.4MB in the beginning and 3.2GB in the end (delta: -3.0GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-12-02 21:11:41,663 INFO L158 Benchmark]: CodeCheck took 59869.52ms. Allocated memory is still 4.2GB. Free memory was 3.2GB in the beginning and 2.8GB in the end (delta: 391.1MB). Peak memory consumption was 389.0MB. Max. memory is 16.1GB. [2023-12-02 21:11:41,666 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 0.21ms. Allocated memory is still 113.2MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 927.31ms. Allocated memory is still 157.3MB. Free memory was 107.0MB in the beginning and 88.6MB in the end (delta: 18.4MB). Peak memory consumption was 76.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 814.49ms. Allocated memory was 157.3MB in the beginning and 377.5MB in the end (delta: 220.2MB). Free memory was 88.6MB in the beginning and 197.4MB in the end (delta: -108.8MB). Peak memory consumption was 154.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 872.24ms. Allocated memory is still 377.5MB. Free memory was 197.4MB in the beginning and 148.6MB in the end (delta: 48.9MB). Peak memory consumption was 111.7MB. Max. memory is 16.1GB. * RCFGBuilder took 22616.66ms. Allocated memory was 377.5MB in the beginning and 4.2GB in the end (delta: 3.8GB). Free memory was 148.4MB in the beginning and 3.2GB in the end (delta: -3.0GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * CodeCheck took 59869.52ms. Allocated memory is still 4.2GB. Free memory was 3.2GB in the beginning and 2.8GB in the end (delta: 391.1MB). Peak memory consumption was 389.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:11:41,878 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-12-02 21:11:41,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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 a072fa15790aaba39e20c442760c9d267765479d5271eb7cb533cc45336c9e6e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:11:43,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:11:43,795 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2023-12-02 21:11:43,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:11:43,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:11:43,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:11:43,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:11:43,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:11:43,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:11:43,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:11:43,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:11:43,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:11:43,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:11:43,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:11:43,835 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:11:43,835 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:11:43,836 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:11:43,836 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:11:43,837 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:11:43,837 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:11:43,838 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:11:43,838 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:11:43,839 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:43,839 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:11:43,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:11:43,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:11:43,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:11:43,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:11:43,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:11:43,841 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:11:43,842 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:43,842 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:11:43,843 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:11:43,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:11:43,843 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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a072fa15790aaba39e20c442760c9d267765479d5271eb7cb533cc45336c9e6e [2023-12-02 21:11:44,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:11:44,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:11:44,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:11:44,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:11:44,143 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:11:44,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c [2023-12-02 21:11:46,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:11:47,253 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:11:47,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c [2023-12-02 21:11:47,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data/cabe6670e/6939e4f6b56248ff87ff16e0fb426e3d/FLAGc740ca523 [2023-12-02 21:11:47,282 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/data/cabe6670e/6939e4f6b56248ff87ff16e0fb426e3d [2023-12-02 21:11:47,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:11:47,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:11:47,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:11:47,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:11:47,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:11:47,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:11:47" (1/1) ... [2023-12-02 21:11:47,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708d7231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:47, skipping insertion in model container [2023-12-02 21:11:47,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:11:47" (1/1) ... [2023-12-02 21:11:47,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:11:47,523 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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c[1177,1190] [2023-12-02 21:11:47,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:11:47,877 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:11:47,887 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_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.collision.2.prop1-back-serstep.c[1177,1190] [2023-12-02 21:11:48,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:11:48,046 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:11:48,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48 WrapperNode [2023-12-02 21:11:48,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:11:48,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:11:48,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:11:48,048 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:11:48,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,221 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2388 [2023-12-02 21:11:48,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:11:48,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:11:48,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:11:48,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:11:48,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:11:48,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:11:48,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:11:48,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:11:48,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:11:48" (1/1) ... [2023-12-02 21:11:48,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:11:48,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:11:48,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:11:48,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:11:48,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:11:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:11:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:11:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:11:48,835 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:11:48,838 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:11:56,923 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:11:57,026 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:11:57,026 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:11:57,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:11:57 BoogieIcfgContainer [2023-12-02 21:11:57,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:11:57,029 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:11:57,029 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:11:57,036 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:11:57,037 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:11:57" (1/1) ... [2023-12-02 21:11:57,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:11:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-12-02 21:11:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-12-02 21:11:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:11:57,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:57,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:57,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:57,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:57,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:11:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:57,834 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:58,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:11:58,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:58,250 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 21:11:58,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:12:08,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:18,881 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 21:12:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 10 transitions. [2023-12-02 21:12:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 10 transitions. [2023-12-02 21:12:19,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:12:19,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:19,247 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:12:19,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:12:19,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:12:19,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:12:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:23,401 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:12:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:24,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 1985 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-02 21:12:24,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:25,284 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 21:12:25,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:12:36,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:41,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:52,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:02,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:12,735 WARN L539 Checker$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 21:13:22,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:34,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:44,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:51,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.88s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:13:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2023-12-02 21:13:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2023-12-02 21:13:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:13:52,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:52,096 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:52,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:52,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:52,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:13:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:59,739 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:01,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:14:02,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:13,230 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 21:14:13,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-02 21:14:20,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:14:37,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:14:47,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:14:57,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:15:07,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:15:08,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:15:21,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:15:32,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.73s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:15:47,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:15:57,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:16:36,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:16:55,610 WARN L539 Checker$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 21:16:57,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:17:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 19 states and 44 transitions. [2023-12-02 21:17:00,058 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 44 transitions. [2023-12-02 21:17:00,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:17:00,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:00,058 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:00,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:00,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:00,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:17:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:07,534 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:17:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:09,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 290 conjunts are in the unsatisfiable core [2023-12-02 21:17:09,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:22,488 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 21:17:22,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 21:17:39,391 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 [0] [2023-12-02 21:17:51,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:17:55,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:17:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 20 states and 48 transitions. [2023-12-02 21:17:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 48 transitions. [2023-12-02 21:17:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:17:57,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:57,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:57,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:57,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:57,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:18:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:05,087 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:07,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:18:07,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:10,323 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 21:18:10,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 21:18:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 20 states and 48 transitions. [2023-12-02 21:18:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 48 transitions. [2023-12-02 21:18:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:18:10,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:10,536 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:10,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:10,537 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:10,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 21:18:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:17,947 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:20,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:18:20,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:23,225 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 21:18:23,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 21:18:38,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:48,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.57s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:52,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-02 21:18:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:53,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:18:53,265 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:18:53,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:18:53,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:53,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:53,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:53,267 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:53,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 21:19:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:01,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:04,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:19:04,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:07,752 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 21:19:07,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 21:19:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:19:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:19:07,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:19:07,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:07,944 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:07,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:07,945 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:07,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 21:19:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:15,980 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:18,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:19:18,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:21,656 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 21:19:21,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 21:19:21,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:19:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:19:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:19:21,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:21,907 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:21,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:21,908 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:21,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 21:19:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:29,491 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:31,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:19:31,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:35,152 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 21:19:35,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-02 21:19:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:19:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:19:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:19:35,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:35,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:35,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:35,343 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:35,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 21:19:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:43,108 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:45,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:19:45,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:48,520 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 21:19:48,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-02 21:19:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:48,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:19:48,711 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:19:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:19:48,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:48,712 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:48,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:48,712 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:48,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 21:19:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:56,409 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:58,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:19:58,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:01,748 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 21:20:01,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 21:20:01,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:20:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:20:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:20:01,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:01,960 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:20:01,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:20:01,960 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:20:01,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 21:20:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:09,426 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:20:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:11,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:20:11,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:14,680 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 21:20:14,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 21:20:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:14,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:20:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:20:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:20:14,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:14,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:20:14,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:20:14,880 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:20:14,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 21:20:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:22,535 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:20:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:24,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:20:24,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:27,904 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 21:20:27,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 21:20:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:20:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:20:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:20:28,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:28,096 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:20:28,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:20:28,097 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:20:28,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 21:20:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:36,061 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:20:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:38,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:20:38,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:41,712 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 21:20:41,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 21:20:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:20:41,921 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:20:41,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:20:41,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:41,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:20:41,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:20:41,923 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:20:41,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 21:20:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:49,694 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:20:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:52,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:20:52,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:55,035 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 21:20:55,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 21:20:55,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:20:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:20:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:20:55,224 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:55,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:20:55,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:20:55,225 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:20:55,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 21:21:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:02,876 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:05,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:21:05,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:08,106 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 21:21:08,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 21:21:08,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:21:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:21:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:21:08,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:08,300 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:08,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:08,301 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:08,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 21:21:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:16,177 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:18,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:21:18,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:21,513 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 21:21:21,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 21:21:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:21:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:21:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:21:21,701 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:21,702 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:21,702 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:21,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 21:21:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:29,305 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:31,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:21:31,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:34,494 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 21:21:34,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 21:21:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:21:34,685 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:21:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:21:34,686 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:34,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:34,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:34,687 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:34,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 21:21:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:42,562 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:44,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:21:44,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:47,812 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 21:21:47,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 21:21:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:21:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:21:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:21:48,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:48,021 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:48,022 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:48,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 21:21:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:55,709 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:58,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:21:58,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:01,015 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 21:22:01,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 21:22:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:01,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:22:01,206 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:22:01,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:22:01,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:01,206 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:01,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:01,207 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:01,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 21:22:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:09,060 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:11,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:22:11,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:14,508 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 21:22:14,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-02 21:22:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:22:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:22:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:22:14,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:14,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:14,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:14,786 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:14,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 21:22:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:22,581 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:24,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:22:24,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:27,847 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 21:22:27,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 21:22:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:22:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:22:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:22:28,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:28,039 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:28,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:28,040 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:28,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 21:22:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:35,804 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:38,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:22:38,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:41,186 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 21:22:41,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 21:22:41,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:41,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:22:41,378 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:22:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:22:41,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:41,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:41,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:41,379 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:41,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 21:22:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:49,184 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:51,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:22:51,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:54,480 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 21:22:54,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 21:22:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:22:54,701 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:22:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:22:54,701 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:54,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:54,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:54,702 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:54,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 21:23:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:02,521 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:04,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:23:04,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:07,895 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 21:23:07,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-12-02 21:23:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:23:08,088 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:23:08,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:23:08,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:08,088 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:08,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:08,089 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:08,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 21:23:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:15,992 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:18,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:23:18,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:21,316 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 21:23:21,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 21:23:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:23:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:23:21,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:23:21,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:21,511 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:21,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:21,512 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:21,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 21:23:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:29,309 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:31,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:23:31,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:34,524 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 21:23:34,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 21:23:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:23:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:23:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:23:34,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:34,722 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:34,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:34,723 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:34,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 21:23:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:42,654 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:44,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:23:44,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:47,898 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 21:23:47,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 21:23:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:23:48,092 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:23:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:23:48,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:48,092 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:48,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:48,093 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:48,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 21:23:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:55,921 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:58,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:23:58,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:01,202 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 21:24:01,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 21:24:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:24:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:24:01,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:24:01,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:01,414 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:01,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:01,415 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:01,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 21:24:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:09,276 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:11,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 3716 conjuncts, 291 conjunts are in the unsatisfiable core [2023-12-02 21:24:11,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:14,750 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 21:24:14,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 21:24:14,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:14,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 21 states and 48 transitions. [2023-12-02 21:24:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 48 transitions. [2023-12-02 21:24:14,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:24:14,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:14,954 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:14,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:14,955 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:14,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b22f7178-8b6b-4177-a4e4-a2012b8c2dbf/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process