./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 644fedc149cdfea0c0b39babfd09647f4fb573c27a060d8d57a08553303664a9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:43,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:43,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 04:07:43,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:07:43,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:07:43,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:43,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:07:43,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:07:43,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:43,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:43,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:43,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:07:43,783 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:43,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:07:43,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:43,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:43,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:07:43,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:43,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:07:43,786 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:07:43,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:07:43,787 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:43,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:07:43,788 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:43,789 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:43,789 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:43,789 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:43,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:43,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:43,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:43,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:43,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:07:43,793 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:07:43,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:07:43,793 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:07:43,794 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_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 644fedc149cdfea0c0b39babfd09647f4fb573c27a060d8d57a08553303664a9 [2023-11-19 04:07:44,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:44,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:44,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:44,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:44,105 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:44,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2023-11-19 04:07:47,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:47,370 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:47,370 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2023-11-19 04:07:47,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data/da69baa34/5a7344f017464cde9110212bdc4c803c/FLAG9062c95e4 [2023-11-19 04:07:47,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data/da69baa34/5a7344f017464cde9110212bdc4c803c [2023-11-19 04:07:47,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:47,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:47,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:47,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:47,404 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:47,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61eaaa0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47, skipping insertion in model container [2023-11-19 04:07:47,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,428 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:47,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:47,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:47,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:47,672 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:47,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47 WrapperNode [2023-11-19 04:07:47,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:47,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:47,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:47,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:47,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,738 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2023-11-19 04:07:47,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:47,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:47,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:47,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:47,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:47,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:47,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:47,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:47,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:47" (1/1) ... [2023-11-19 04:07:47,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:47,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:47,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:47,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:47,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:07:47,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:07:47,940 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:47,943 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:07:48,460 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:07:48,506 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:07:48,506 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:07:48,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:48 BoogieIcfgContainer [2023-11-19 04:07:48,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:07:48,513 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:07:48,513 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:07:48,523 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:07:48,523 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:48" (1/1) ... [2023-11-19 04:07:48,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:07:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-19 04:07:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-19 04:07:48,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:07:48,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:48,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:07:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 04:07:48,873 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 04:07:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:07:48,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:48,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:07:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-19 04:07:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-19 04:07:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:07:48,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:48,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:07:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 04:07:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 04:07:48,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:07:48,946 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:48,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:48,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:07:48,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:07:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-19 04:07:49,049 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-19 04:07:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:07:49,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:49,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:49,102 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-19 04:07:49,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:07:49 ImpRootNode [2023-11-19 04:07:49,136 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:07:49,136 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:07:49,136 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:07:49,136 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:07:49,137 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:48" (3/4) ... [2023-11-19 04:07:49,139 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:07:49,140 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:07:49,141 INFO L158 Benchmark]: Toolchain (without parser) took 1743.67ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 81.7MB in the end (delta: 21.9MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-11-19 04:07:49,142 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:49,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.30ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 92.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:07:49,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.11ms. Allocated memory is still 144.7MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:49,144 INFO L158 Benchmark]: Boogie Preprocessor took 54.95ms. Allocated memory is still 144.7MB. Free memory was 90.6MB in the beginning and 89.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:49,145 INFO L158 Benchmark]: RCFGBuilder took 717.06ms. Allocated memory is still 144.7MB. Free memory was 88.9MB in the beginning and 106.8MB in the end (delta: -17.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-19 04:07:49,147 INFO L158 Benchmark]: CodeCheck took 622.82ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 81.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 04:07:49,150 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 144.7MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:49,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 133 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 10 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(a>=0 && a<=5) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=5) [L29] x = a [L30] s = 3.25 [L31] r = 1 VAL [a=2, r=1, s=13/4, x=2] [L33] COND TRUE 1 VAL [a=2, r=1, s=13/4, x=2] [L34] EXPR 12*r VAL [a=2, r=1, s=13/4, x=2] [L34] EXPR 12*r*r VAL [a=2, r=1, s=13/4, x=2] [L34] (int)(4*s) - 12*r*r VAL [a=2, r=1, s=13/4, x=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.30ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 92.7MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.11ms. Allocated memory is still 144.7MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.95ms. Allocated memory is still 144.7MB. Free memory was 90.6MB in the beginning and 89.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.06ms. Allocated memory is still 144.7MB. Free memory was 88.9MB in the beginning and 106.8MB in the end (delta: -17.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * CodeCheck took 622.82ms. Allocated memory is still 144.7MB. Free memory was 106.8MB in the beginning and 81.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 144.7MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:07:49,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 644fedc149cdfea0c0b39babfd09647f4fb573c27a060d8d57a08553303664a9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:51,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:51,889 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-19 04:07:51,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:51,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:07:51,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:07:51,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:51,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:51,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:51,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:07:51,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:51,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:51,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:51,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:07:51,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:51,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:07:51,953 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:07:51,953 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:07:51,954 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:07:51,955 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:07:51,955 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:07:51,956 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:51,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:07:51,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:51,957 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:51,957 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:51,958 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:51,958 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:51,958 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:07:51,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:51,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:51,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:51,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:51,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:07:51,961 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:07:51,962 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:51,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:07:51,962 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:07:51,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:07:51,963 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_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 644fedc149cdfea0c0b39babfd09647f4fb573c27a060d8d57a08553303664a9 [2023-11-19 04:07:52,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:52,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:52,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:52,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:52,360 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:52,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2023-11-19 04:07:55,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:55,618 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:55,619 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound5.c [2023-11-19 04:07:55,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data/6d5eff07a/43d5f7d5ee2840d6a5af64aca0869982/FLAG9bec33537 [2023-11-19 04:07:55,642 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/data/6d5eff07a/43d5f7d5ee2840d6a5af64aca0869982 [2023-11-19 04:07:55,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:55,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:55,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:55,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:55,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:55,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:55,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31394902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55, skipping insertion in model container [2023-11-19 04:07:55,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:55,676 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:55,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:55,920 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:55,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:55,980 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:55,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55 WrapperNode [2023-11-19 04:07:55,981 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:55,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:55,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:55,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:55,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,054 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-19 04:07:56,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:56,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:56,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:56,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:56,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:56,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:56,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:56,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:56,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:55" (1/1) ... [2023-11-19 04:07:56,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:56,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:56,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:56,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:07:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:56,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:07:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:07:56,285 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:56,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:08:39,060 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:08:39,101 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:08:39,101 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:08:39,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:39 BoogieIcfgContainer [2023-11-19 04:08:39,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:08:39,107 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:08:39,107 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:08:39,117 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:08:39,117 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:39" (1/1) ... [2023-11-19 04:08:39,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:08:39,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-19 04:08:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-19 04:08:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:08:39,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:39,185 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:39,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:39,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:39,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:08:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:39,318 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:39,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:39,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:39,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:39,400 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:08:39,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:39,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 04:08:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 04:08:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:08:39,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:39,526 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:39,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:39,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:39,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 04:08:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:39,658 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:39,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:39,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:39,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 04:08:39,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-19 04:08:39,750 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-19 04:08:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:39,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:39,751 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:39,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:39,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:39,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:08:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:39,912 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:39,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:39,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:40,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-19 04:08:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-19 04:08:40,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:08:40,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:40,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:40,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:40,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:40,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:08:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:40,291 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:40,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:40,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:40,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 138 states and 144 transitions. [2023-11-19 04:08:40,700 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2023-11-19 04:08:40,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:40,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:40,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:40,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:40,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:40,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 04:08:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:40,954 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:41,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:08:41,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:41,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-19 04:08:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 144 states and 151 transitions. [2023-11-19 04:08:42,670 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2023-11-19 04:08:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:08:42,670 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:42,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:42,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:42,672 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:42,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 04:08:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:42,936 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:43,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:43,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:43,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:43,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-19 04:08:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 145 states and 153 transitions. [2023-11-19 04:08:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2023-11-19 04:08:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:08:44,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:44,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:44,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:44,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:44,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 04:08:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:45,196 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:45,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:45,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:45,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:46,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 147 states and 156 transitions. [2023-11-19 04:08:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2023-11-19 04:08:46,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:08:46,279 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:46,279 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:46,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:46,280 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:46,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 04:08:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:46,581 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:46,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:46,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:46,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 148 states and 157 transitions. [2023-11-19 04:08:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2023-11-19 04:08:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:08:46,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:46,776 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:46,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:46,778 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:46,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 04:08:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:47,069 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:47,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:47,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:47,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:47,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:47,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 149 states and 158 transitions. [2023-11-19 04:08:47,564 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 158 transitions. [2023-11-19 04:08:47,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:08:47,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:47,564 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:47,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:47,566 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:47,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 04:08:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:47,830 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:47,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:47,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:48,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 150 states and 159 transitions. [2023-11-19 04:08:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2023-11-19 04:08:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:08:48,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:48,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:48,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:48,401 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:48,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 04:08:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:48,787 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:48,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:48,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:49,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-11-19 04:08:49,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 151 states and 160 transitions. [2023-11-19 04:08:49,275 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2023-11-19 04:08:49,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:08:49,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:49,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:49,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:49,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:49,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 04:08:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:49,602 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:49,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:49,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:49,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 152 states and 161 transitions. [2023-11-19 04:08:50,351 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2023-11-19 04:08:50,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:08:50,352 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:50,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:50,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:50,356 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:50,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-19 04:08:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:50,747 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:50,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:50,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:51,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 153 states and 162 transitions. [2023-11-19 04:08:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2023-11-19 04:08:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 04:08:51,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:51,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:51,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:51,157 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:51,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-19 04:08:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:51,566 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:51,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:08:51,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:52,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:52,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 154 states and 164 transitions. [2023-11-19 04:08:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2023-11-19 04:08:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:08:52,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:52,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:52,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:52,240 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:52,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97404497-c590-40af-9696-2fa2a875b133/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 04:08:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:52,699 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported