./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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 ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:26,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:26,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 04:07:26,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:07:26,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:07:26,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:26,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:07:26,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:07:26,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:26,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:26,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:26,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:07:26,923 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:26,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:07:26,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:26,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:26,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:07:26,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:26,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:07:26,933 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:07:26,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:07:26,934 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:26,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:07:26,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:26,937 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:26,938 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:26,938 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:26,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:26,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:26,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:26,941 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:26,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:07:26,942 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:07:26,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:07:26,943 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:07:26,943 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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe [2023-11-19 04:07:27,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:27,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:27,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:27,285 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:27,286 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:27,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2023-11-19 04:07:30,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:30,790 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:30,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2023-11-19 04:07:30,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data/1dc099792/7bab2a972ef842b1ab509062189296d1/FLAGda421feca [2023-11-19 04:07:30,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data/1dc099792/7bab2a972ef842b1ab509062189296d1 [2023-11-19 04:07:30,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:30,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:30,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:30,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:30,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:30,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:30" (1/1) ... [2023-11-19 04:07:30,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db6b98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:30, skipping insertion in model container [2023-11-19 04:07:30,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:30" (1/1) ... [2023-11-19 04:07:30,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:31,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:31,045 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:31,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:31,080 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:31,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31 WrapperNode [2023-11-19 04:07:31,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:31,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:31,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:31,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:31,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,146 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2023-11-19 04:07:31,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:31,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:31,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:31,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:31,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:31,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:31,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:31,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:31,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:31,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:31,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:31,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:07:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:31,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:31,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:07:31,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:07:31,334 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:31,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:07:31,825 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:07:31,872 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:07:31,873 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:07:31,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:31 BoogieIcfgContainer [2023-11-19 04:07:31,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:07:31,880 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:07:31,880 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:07:31,888 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:07:31,888 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:31" (1/1) ... [2023-11-19 04:07:31,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:07:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:31,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-19 04:07:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-19 04:07:31,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:07:31,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:31,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:32,179 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 04:07:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 04:07:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 04:07:32,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:07:32,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:32,386 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 04:07:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-19 04:07:32,412 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-19 04:07:32,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:07:32,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:32,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:32,437 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 04:07:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 04:07:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 04:07:32,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:07:32,449 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:32,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:32,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:07:32,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:32,535 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 04:07:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-19 04:07:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-19 04:07:32,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:07:32,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:32,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:32,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:32,608 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-11-19 04:07:32,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:07:32 ImpRootNode [2023-11-19 04:07:32,636 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:07:32,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:07:32,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:07:32,637 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:07:32,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:31" (3/4) ... [2023-11-19 04:07:32,640 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:07:32,641 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:07:32,643 INFO L158 Benchmark]: Toolchain (without parser) took 1822.18ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 100.3MB in the beginning and 128.5MB in the end (delta: -28.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-19 04:07:32,643 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 138.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:32,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.42ms. Allocated memory is still 138.4MB. Free memory was 99.8MB in the beginning and 89.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:07:32,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.44ms. Allocated memory is still 138.4MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:32,646 INFO L158 Benchmark]: Boogie Preprocessor took 32.55ms. Allocated memory is still 138.4MB. Free memory was 86.8MB in the beginning and 85.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:32,647 INFO L158 Benchmark]: RCFGBuilder took 691.29ms. Allocated memory is still 138.4MB. Free memory was 85.7MB in the beginning and 63.2MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:32,652 INFO L158 Benchmark]: CodeCheck took 756.39ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 62.6MB in the beginning and 129.5MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:32,653 INFO L158 Benchmark]: Witness Printer took 4.71ms. Allocated memory is still 169.9MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:32,661 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: 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<=1) [L14] COND FALSE !(!cond) [L28] RET assume_abort_if_not(a>=0 && a<=1) [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 0.34ms. Allocated memory is still 138.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.42ms. Allocated memory is still 138.4MB. Free memory was 99.8MB in the beginning and 89.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.44ms. Allocated memory is still 138.4MB. Free memory was 88.9MB in the beginning and 86.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.55ms. Allocated memory is still 138.4MB. Free memory was 86.8MB in the beginning and 85.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.29ms. Allocated memory is still 138.4MB. Free memory was 85.7MB in the beginning and 63.2MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * CodeCheck took 756.39ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 62.6MB in the beginning and 129.5MB in the end (delta: -66.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.71ms. Allocated memory is still 169.9MB. Free memory is still 128.5MB. 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 04:07:32,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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 ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:35,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:35,580 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-19 04:07:35,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:35,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:07:35,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:07:35,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:35,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:35,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:35,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:07:35,645 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:35,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:35,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:35,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:07:35,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:35,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:07:35,649 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:07:35,649 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:07:35,650 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:07:35,651 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:07:35,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:07:35,652 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:35,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:07:35,653 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:35,653 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:35,653 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:35,654 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:35,654 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:35,655 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:07:35,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:35,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:35,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:35,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:35,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:07:35,658 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:07:35,658 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:35,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:07:35,659 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:07:35,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:07:35,660 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_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5daa36c47d3acf04ff127d3f9a6e17688f7f254f16d34cb2769aec1ca052fe [2023-11-19 04:07:36,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:36,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:36,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:36,107 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:36,108 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:36,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2023-11-19 04:07:39,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:39,553 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:39,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound1.c [2023-11-19 04:07:39,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data/ba072dd85/8226c561c0564dfe990e8f3c0ce8d773/FLAGc970923a9 [2023-11-19 04:07:39,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/data/ba072dd85/8226c561c0564dfe990e8f3c0ce8d773 [2023-11-19 04:07:39,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:39,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:39,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:39,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:39,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:39,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:39,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffc1714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39, skipping insertion in model container [2023-11-19 04:07:39,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:39,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:39,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:39,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:39,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:39,879 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:39,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39 WrapperNode [2023-11-19 04:07:39,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:39,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:39,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:39,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:39,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:39,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:39,977 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2023-11-19 04:07:39,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:39,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:39,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:39,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:39,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:40,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:40,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:40,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:40,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:39" (1/1) ... [2023-11-19 04:07:40,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:40,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:40,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:40,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:40,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:07:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:40,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:07:40,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:07:40,258 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:40,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:08:27,418 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:08:27,459 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:08:27,460 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:08:27,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:27 BoogieIcfgContainer [2023-11-19 04:08:27,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:08:27,467 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:08:27,467 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:08:27,477 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:08:27,477 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:27" (1/1) ... [2023-11-19 04:08:27,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:08:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 133 states and 139 transitions. [2023-11-19 04:08:27,546 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2023-11-19 04:08:27,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:08:27,548 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:27,548 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:27,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:27,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:27,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:08:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:27,714 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:27,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:27,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:27,809 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 04:08:27,813 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:08:27,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 135 states and 141 transitions. [2023-11-19 04:08:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 141 transitions. [2023-11-19 04:08:27,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:08:27,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:27,907 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:27,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:27,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:27,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 04:08:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,053 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:28,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:28,104 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 04:08:28,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 04:08:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 136 states and 142 transitions. [2023-11-19 04:08:28,156 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2023-11-19 04:08:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:08:28,157 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:28,157 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:28,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:28,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:28,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:08:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,366 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:28,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:28,439 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 04:08:28,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:28,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 137 states and 143 transitions. [2023-11-19 04:08:28,601 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2023-11-19 04:08:28,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:08:28,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:28,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:28,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:28,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:28,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:08:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,785 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:28,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:28,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:28,888 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 04:08:28,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 138 states and 144 transitions. [2023-11-19 04:08:29,327 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2023-11-19 04:08:29,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:08:29,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:29,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:29,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:29,335 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:29,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 04:08:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:29,596 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:29,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:08:29,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:30,161 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 04:08:30,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 144 states and 151 transitions. [2023-11-19 04:08:31,605 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 151 transitions. [2023-11-19 04:08:31,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:08:31,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:31,606 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:31,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:31,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:31,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 04:08:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:31,845 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:31,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:31,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:31,997 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 04:08:32,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 145 states and 153 transitions. [2023-11-19 04:08:34,041 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2023-11-19 04:08:34,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:08:34,044 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:34,044 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:34,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:34,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:34,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 04:08:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:34,334 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:08:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:34,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:08:34,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:08:34,524 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 04:08:34,528 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:08:34,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:08:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 147 states and 156 transitions. [2023-11-19 04:08:35,498 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2023-11-19 04:08:35,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:08:35,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:35,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:08:35,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:08:35,505 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:08:35,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bacbb099-8f62-4b8e-89a2-29e5a7d83c13/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 04:08:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:35,739 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported