./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/freire2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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 9d48d3286a6f586125e0a7b49e6e6eb72f0f43db8d452bf9a67ba40cbad4d2bf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:21:42,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:21:42,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:21:42,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:21:42,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:21:42,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:21:42,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:21:42,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:21:42,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:21:42,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:21:42,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:21:42,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:21:42,677 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:21:42,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:21:42,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:21:42,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:21:42,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:21:42,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:21:42,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:21:42,681 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:21:42,681 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:21:42,682 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:21:42,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:21:42,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:21:42,683 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:21:42,683 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:21:42,684 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:21:42,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:21:42,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:42,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:21:42,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:21:42,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:21:42,687 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:21:42,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:21:42,687 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:21:42,688 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_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d48d3286a6f586125e0a7b49e6e6eb72f0f43db8d452bf9a67ba40cbad4d2bf [2023-11-19 03:21:43,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:21:43,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:21:43,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:21:43,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:21:43,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:21:43,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench/freire2.c [2023-11-19 03:21:46,443 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:21:46,683 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:21:46,684 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/sv-benchmarks/c/nla-digbench/freire2.c [2023-11-19 03:21:46,695 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data/68eaf41d3/a30039a0586b4fa584f96aa5c3e8af5a/FLAG8fcd4caf9 [2023-11-19 03:21:46,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data/68eaf41d3/a30039a0586b4fa584f96aa5c3e8af5a [2023-11-19 03:21:46,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:21:46,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:21:46,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:46,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:21:46,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:21:46,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:46" (1/1) ... [2023-11-19 03:21:46,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63ad3986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:46, skipping insertion in model container [2023-11-19 03:21:46,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:46" (1/1) ... [2023-11-19 03:21:46,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:21:47,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:47,063 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:21:47,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:47,103 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:21:47,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47 WrapperNode [2023-11-19 03:21:47,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:47,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:47,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:21:47,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:21:47,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,147 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-11-19 03:21:47,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:47,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:21:47,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:21:47,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:21:47,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,175 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:21:47,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:21:47,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:21:47,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:21:47,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:47,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:21:47,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:21:47,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:21:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:21:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:21:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:21:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:21:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:21:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:21:47,347 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:21:47,349 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:21:47,811 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:21:47,842 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:21:47,842 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:21:47,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:47 BoogieIcfgContainer [2023-11-19 03:21:47,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:21:47,849 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:21:47,849 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:21:47,861 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:21:47,862 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:47" (1/1) ... [2023-11-19 03:21:47,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:21:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:47,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-19 03:21:47,931 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-19 03:21:47,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:21:47,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:48,087 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 03:21:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 133 states and 138 transitions. [2023-11-19 03:21:48,131 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 138 transitions. [2023-11-19 03:21:48,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:21:48,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:48,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:48,270 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 03:21:48,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 03:21:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 03:21:48,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:21:48,319 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:48,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:48,356 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 03:21:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:48,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-19 03:21:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-19 03:21:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:21:48,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:48,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:48,393 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 03:21:48,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 03:21:48,401 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 03:21:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:21:48,401 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:21:48,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:21:48,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:21:48,479 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 03:21:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:21:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-19 03:21:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-19 03:21:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:21:48,518 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:21:48,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:21:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:21:48,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:21:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:21:48,572 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2023-11-19 03:21:48,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:21:48 ImpRootNode [2023-11-19 03:21:48,603 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:21:48,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:21:48,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:21:48,605 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:21:48,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:21:47" (3/4) ... [2023-11-19 03:21:48,608 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:21:48,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:21:48,612 INFO L158 Benchmark]: Toolchain (without parser) took 1882.86ms. Allocated memory is still 127.9MB. Free memory was 86.8MB in the beginning and 48.3MB in the end (delta: 38.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2023-11-19 03:21:48,612 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:21:48,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.05ms. Allocated memory is still 127.9MB. Free memory was 86.6MB in the beginning and 98.2MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:21:48,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.48ms. Allocated memory is still 127.9MB. Free memory was 98.2MB in the beginning and 96.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:21:48,616 INFO L158 Benchmark]: Boogie Preprocessor took 51.86ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 94.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:21:48,617 INFO L158 Benchmark]: RCFGBuilder took 647.81ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 73.5MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 03:21:48,618 INFO L158 Benchmark]: CodeCheck took 754.51ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 48.7MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 03:21:48,618 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 127.9MB. Free memory was 48.7MB in the beginning and 48.3MB in the end (delta: 404.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:21:48,622 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: 0.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 35 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 125 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, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 33]: 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 33. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L28] x = a [L29] s = 3.25 [L30] r = 1 VAL [a=2, r=1, s=13/4, x=2] [L32] COND TRUE 1 VAL [a=2, r=1, s=13/4, x=2] [L33] EXPR 12*r VAL [a=2, r=1, s=13/4, x=2] [L33] EXPR 12*r*r VAL [a=2, r=1, s=13/4, x=2] [L33] (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 0.18ms. Allocated memory is still 102.8MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.05ms. Allocated memory is still 127.9MB. Free memory was 86.6MB in the beginning and 98.2MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.48ms. Allocated memory is still 127.9MB. Free memory was 98.2MB in the beginning and 96.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.86ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 94.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 647.81ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 73.5MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 754.51ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 48.7MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 127.9MB. Free memory was 48.7MB in the beginning and 48.3MB in the end (delta: 404.2kB). 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 03:21:48,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/freire2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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 9d48d3286a6f586125e0a7b49e6e6eb72f0f43db8d452bf9a67ba40cbad4d2bf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:21:51,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:21:51,622 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-19 03:21:51,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:21:51,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:21:51,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:21:51,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:21:51,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:21:51,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:21:51,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:21:51,700 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:21:51,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:21:51,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:21:51,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:21:51,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:21:51,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:21:51,704 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:21:51,705 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:21:51,705 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:21:51,706 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:21:51,707 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:21:51,708 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:21:51,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:21:51,709 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:21:51,709 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:21:51,710 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:21:51,710 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:21:51,711 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:21:51,711 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:21:51,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:21:51,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:51,714 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:21:51,714 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:21:51,715 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:21:51,715 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:21:51,716 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:21:51,716 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:21:51,716 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:21:51,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:21:51,718 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_9c83f880-2e97-4f5f-8f28-6b7a2092b898/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d48d3286a6f586125e0a7b49e6e6eb72f0f43db8d452bf9a67ba40cbad4d2bf [2023-11-19 03:21:52,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:21:52,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:21:52,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:21:52,198 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:21:52,200 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:21:52,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench/freire2.c [2023-11-19 03:21:55,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:21:55,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:21:55,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/sv-benchmarks/c/nla-digbench/freire2.c [2023-11-19 03:21:55,714 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data/3ca1424aa/59b648b2359242f8a4e104d96d4a1703/FLAGfb2b34fb5 [2023-11-19 03:21:55,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/data/3ca1424aa/59b648b2359242f8a4e104d96d4a1703 [2023-11-19 03:21:55,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:21:55,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:21:55,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:55,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:21:55,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:21:55,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:55" (1/1) ... [2023-11-19 03:21:55,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c00ad02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:55, skipping insertion in model container [2023-11-19 03:21:55,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:21:55" (1/1) ... [2023-11-19 03:21:55,777 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:21:55,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:56,001 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:21:56,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:21:56,059 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:21:56,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56 WrapperNode [2023-11-19 03:21:56,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:21:56,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:56,062 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:21:56,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:21:56,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,123 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2023-11-19 03:21:56,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:21:56,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:21:56,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:21:56,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:21:56,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:21:56,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:21:56,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:21:56,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:21:56,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:21:56" (1/1) ... [2023-11-19 03:21:56,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:21:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:21:56,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:21:56,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:21:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:21:56,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:21:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:21:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:21:56,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:21:56,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:21:56,384 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:21:56,386 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:22:37,127 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:22:37,153 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:22:37,153 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:22:37,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:22:37 BoogieIcfgContainer [2023-11-19 03:22:37,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:22:37,160 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:22:37,160 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:22:37,169 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:22:37,170 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:22:37" (1/1) ... [2023-11-19 03:22:37,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:22:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:37,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-19 03:22:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-19 03:22:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:22:37,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:37,237 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:37,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:37,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:37,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:22:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:37,343 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:37,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:22:37,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:37,379 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 03:22:37,381 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:22:37,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:37,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 133 states and 138 transitions. [2023-11-19 03:22:37,407 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 138 transitions. [2023-11-19 03:22:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:22:37,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:37,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:37,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:37,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:37,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:22:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:37,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:37,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:37,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:37,591 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 03:22:37,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 03:22:37,682 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 03:22:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:22:37,682 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:37,682 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:37,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:37,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:37,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:22:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:37,813 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:37,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:37,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:37,860 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 03:22:37,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-19 03:22:37,907 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-19 03:22:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:22:37,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:37,907 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:37,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:37,910 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:37,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 03:22:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:38,116 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:38,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:38,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:38,195 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 03:22:38,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-19 03:22:38,354 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-19 03:22:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:22:38,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:38,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:38,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:38,361 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:38,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 03:22:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:38,584 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:38,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:38,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:38,664 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 03:22:38,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 138 states and 144 transitions. [2023-11-19 03:22:39,003 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2023-11-19 03:22:39,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:22:39,003 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:39,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:39,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:39,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:39,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 03:22:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:39,271 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:39,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:22:39,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:39,595 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 03:22:39,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:40,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:40,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 144 states and 151 transitions. [2023-11-19 03:22:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2023-11-19 03:22:40,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:22:40,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:40,861 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:40,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:40,865 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:40,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 03:22:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:41,102 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:41,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:41,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:41,244 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 03:22:41,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-11-19 03:22:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:42,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 145 states and 153 transitions. [2023-11-19 03:22:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2023-11-19 03:22:42,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:22:42,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:42,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:42,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:42,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:42,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 03:22:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:42,566 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:42,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:42,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:42,741 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 03:22:42,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-19 03:22:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 147 states and 156 transitions. [2023-11-19 03:22:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2023-11-19 03:22:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:22:44,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:44,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:44,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:44,092 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:44,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 03:22:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:44,305 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:44,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:44,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:44,483 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 03:22:44,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 148 states and 157 transitions. [2023-11-19 03:22:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 157 transitions. [2023-11-19 03:22:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:22:44,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:44,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:44,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:44,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 03:22:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:44,848 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:44,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:44,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:45,043 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 03:22:45,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:45,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 149 states and 158 transitions. [2023-11-19 03:22:45,145 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 158 transitions. [2023-11-19 03:22:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:22:45,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:45,145 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:45,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:45,146 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:45,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 03:22:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:45,459 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:45,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:45,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:45,681 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 03:22:45,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:45,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 150 states and 159 transitions. [2023-11-19 03:22:45,922 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2023-11-19 03:22:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:22:45,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:45,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:45,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:45,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 03:22:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:46,270 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:46,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:46,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:46,476 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 03:22:46,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 151 states and 160 transitions. [2023-11-19 03:22:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2023-11-19 03:22:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:22:46,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:46,693 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:46,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:46,696 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:46,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-19 03:22:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:47,004 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:47,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:47,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:47,228 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 03:22:47,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-11-19 03:22:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:47,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 152 states and 161 transitions. [2023-11-19 03:22:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2023-11-19 03:22:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:22:47,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:47,550 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:47,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:47,557 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:47,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-19 03:22:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:48,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:48,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:48,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:48,300 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 03:22:48,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 153 states and 162 transitions. [2023-11-19 03:22:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2023-11-19 03:22:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:22:48,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:48,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:48,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:48,456 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:48,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 03:22:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:48,801 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:48,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:48,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:22:49,015 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 03:22:49,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-19 03:22:49,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:49,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 154 states and 163 transitions. [2023-11-19 03:22:49,060 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 163 transitions. [2023-11-19 03:22:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:22:49,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:49,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:22:49,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:22:49,063 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:22:49,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c83f880-2e97-4f5f-8f28-6b7a2092b898/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-19 03:22:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:49,429 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:22:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:49,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:22:49,582 INFO L285 TraceCheckSpWp]: Computing forward predicates...