./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/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_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:05:04,124 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:05:04,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:05:04,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:05:04,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:05:04,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:05:04,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:05:04,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:05:04,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:05:04,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:05:04,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:05:04,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:05:04,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:05:04,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:05:04,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:05:04,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:05:04,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:05:04,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:05:04,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:05:04,257 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:05:04,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:05:04,271 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:05:04,272 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:05:04,272 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:05:04,273 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:05:04,273 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:05:04,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:04,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:05:04,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:05:04,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:05:04,275 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:05:04,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:05:04,276 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:05:04,276 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_904377d6-9f17-4e2a-8a42-aef84d0cb750/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 [2023-11-19 04:05:04,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:05:04,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:05:04,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:05:04,580 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:05:04,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:05:04,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2023-11-19 04:05:07,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:05:07,947 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:05:07,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2023-11-19 04:05:07,955 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data/c344b8431/6fac4a53319340298ce353a1572cc4cb/FLAGee5d9cd5c [2023-11-19 04:05:07,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data/c344b8431/6fac4a53319340298ce353a1572cc4cb [2023-11-19 04:05:07,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:05:07,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:05:07,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:07,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:05:07,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:05:07,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:07" (1/1) ... [2023-11-19 04:05:07,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551abf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:07, skipping insertion in model container [2023-11-19 04:05:07,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:07" (1/1) ... [2023-11-19 04:05:08,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:05:08,187 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2023-11-19 04:05:08,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:08,203 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:05:08,222 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2023-11-19 04:05:08,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:08,243 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:05:08,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08 WrapperNode [2023-11-19 04:05:08,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:08,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:08,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:05:08,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:05:08,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,283 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-19 04:05:08,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:08,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:05:08,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:05:08,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:05:08,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:05:08,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:05:08,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:05:08,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:05:08,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:08,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:05:08,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:05:08,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:05:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:05:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:05:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:05:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:05:08,440 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:05:08,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:05:08,539 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:05:08,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:05:08,556 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:05:08,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:08 BoogieIcfgContainer [2023-11-19 04:05:08,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:05:08,562 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:05:08,562 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:05:08,572 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:05:08,572 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:08" (1/1) ... [2023-11-19 04:05:08,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:05:08,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:08,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 04:05:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 04:05:08,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:05:08,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:08,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:08,951 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 04:05:09,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-19 04:05:09,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-19 04:05:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:05:09,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:09,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-19 04:05:09,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-19 04:05:09,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:05:09,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:09,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-19 04:05:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-19 04:05:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:05:09,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:09,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:09,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:09,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-19 04:05:09,420 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 04:05:09,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:05:09,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:09,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:09,534 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:09,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:09,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-19 04:05:09,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-19 04:05:09,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:05:09,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:09,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-19 04:05:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-19 04:05:09,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:05:09,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 04:05:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 04:05:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:05:10,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:10,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:10,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2023-11-19 04:05:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-19 04:05:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:05:10,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:10,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:10,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2023-11-19 04:05:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-19 04:05:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:05:10,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:10,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-11-19 04:05:10,665 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-11-19 04:05:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:05:10,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:05:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:05:10,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:05:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:05:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:05:10,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:05:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:05:10,765 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2023-11-19 04:05:10,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:05:10 ImpRootNode [2023-11-19 04:05:10,810 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:05:10,811 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:05:10,811 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:05:10,812 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:05:10,812 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:08" (3/4) ... [2023-11-19 04:05:10,815 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:05:10,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:05:10,818 INFO L158 Benchmark]: Toolchain (without parser) took 2839.78ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 71.0MB in the beginning and 104.8MB in the end (delta: -33.8MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-11-19 04:05:10,818 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:05:10,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.22ms. Allocated memory is still 115.3MB. Free memory was 70.6MB in the beginning and 60.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:05:10,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.57ms. Allocated memory is still 115.3MB. Free memory was 60.5MB in the beginning and 59.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:05:10,822 INFO L158 Benchmark]: Boogie Preprocessor took 19.18ms. Allocated memory is still 115.3MB. Free memory was 59.1MB in the beginning and 58.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:05:10,828 INFO L158 Benchmark]: RCFGBuilder took 255.68ms. Allocated memory is still 115.3MB. Free memory was 58.0MB in the beginning and 48.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:05:10,829 INFO L158 Benchmark]: CodeCheck took 2248.86ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 48.7MB in the beginning and 104.8MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:05:10,829 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 163.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:05:10,838 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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 211 mSolverCounterUnsat, 30 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 592 GetRequests, 509 SyntacticMatches, 45 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/165 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: 29]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 16. Possible FailurePath: [L1] int __return_main; [L9] float main__tick = 0.10000000149011612; [L10] float main__time = 0.0; [L11] int main__i; [L12] main__i = 0 VAL [__return_main=0, main__i=0, main__tick=2500000037252903/25000000000000000, main__time=0] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=1, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=2, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=3, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=4, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=5, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=6, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=7, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=8, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=9, main__tick=2500000037252903/25000000000000000] [L14] COND TRUE main__i < 10 [L16] main__time = main__time + main__tick [L17] main__i = main__i + 1 VAL [__return_main=0, main__i=10, main__tick=2500000037252903/25000000000000000] [L14] COND FALSE !(main__i < 10) [L23] int __tmp_1; [L24] __tmp_1 = main__time != 1.0 [L25] int __VERIFIER_assert__cond; [L26] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_main=0, __tmp_1=0, main__i=10, main__tick=2500000037252903/25000000000000000] [L27] COND TRUE __VERIFIER_assert__cond == 0 VAL [__VERIFIER_assert__cond=0, __return_main=0, __tmp_1=0, main__i=10, main__tick=2500000037252903/25000000000000000] [L29] reach_error() VAL [__VERIFIER_assert__cond=0, __return_main=0, __tmp_1=0, main__i=10, main__tick=2500000037252903/25000000000000000] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.22ms. Allocated memory is still 115.3MB. Free memory was 70.6MB in the beginning and 60.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.57ms. Allocated memory is still 115.3MB. Free memory was 60.5MB in the beginning and 59.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.18ms. Allocated memory is still 115.3MB. Free memory was 59.1MB in the beginning and 58.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 255.68ms. Allocated memory is still 115.3MB. Free memory was 58.0MB in the beginning and 48.7MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2248.86ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 48.7MB in the beginning and 104.8MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 163.6MB. Free memory is still 104.8MB. 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 04:05:10,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/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_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/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_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:05:13,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:05:13,688 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 04:05:13,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:05:13,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:05:13,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:05:13,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:05:13,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:05:13,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:05:13,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:05:13,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:05:13,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:05:13,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:05:13,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:05:13,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:05:13,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:05:13,751 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:05:13,751 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:05:13,752 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:05:13,753 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:05:13,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:05:13,754 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:05:13,754 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:05:13,755 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:05:13,755 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:05:13,756 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:13,756 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:05:13,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:05:13,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:13,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:05:13,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:05:13,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:05:13,759 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:05:13,760 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:13,760 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:05:13,760 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:05:13,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:05:13,761 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_904377d6-9f17-4e2a-8a42-aef84d0cb750/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee159be1ed42c29b70080447b490f7a1aeb72331afc90e5794e0e8d61cb20d74 [2023-11-19 04:05:14,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:05:14,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:05:14,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:05:14,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:05:14,206 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:05:14,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2023-11-19 04:05:17,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:05:17,681 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:05:17,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c [2023-11-19 04:05:17,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data/20316ed37/c8c43433e5674f529af1612a55b6977a/FLAG079dd2ed1 [2023-11-19 04:05:17,701 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/data/20316ed37/c8c43433e5674f529af1612a55b6977a [2023-11-19 04:05:17,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:05:17,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:05:17,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:17,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:05:17,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:05:17,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:17" (1/1) ... [2023-11-19 04:05:17,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf58f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:17, skipping insertion in model container [2023-11-19 04:05:17,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:05:17" (1/1) ... [2023-11-19 04:05:17,734 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:05:17,936 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2023-11-19 04:05:17,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:17,962 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:05:17,980 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/sv-benchmarks/c/float-benchs/drift_tenth.c.p+cfa-reducer.c[721,734] [2023-11-19 04:05:17,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:05:18,003 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:05:18,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18 WrapperNode [2023-11-19 04:05:18,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:05:18,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:18,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:05:18,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:05:18,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,042 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-19 04:05:18,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:05:18,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:05:18,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:05:18,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:05:18,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:05:18,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:05:18,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:05:18,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:05:18,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:05:18,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:05:18,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:05:18,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:05:18,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:05:18,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:05:18,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:05:18,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:05:18,271 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:05:18,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:05:18,494 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:05:18,525 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:05:18,526 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:05:18,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:18 BoogieIcfgContainer [2023-11-19 04:05:18,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:05:18,534 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:05:18,535 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:05:18,555 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:05:18,556 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:05:18" (1/1) ... [2023-11-19 04:05:18,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:05:18,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 04:05:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 04:05:18,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:05:18,648 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:18,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:18,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:18,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:18,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:05:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:18,858 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:18,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:05:18,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:18,990 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 04:05:18,995 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:05:19,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 04:05:19,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:19,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-19 04:05:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-19 04:05:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:05:19,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:19,455 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:19,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:19,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:19,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 04:05:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:19,705 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:19,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:05:19,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:19,796 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:05:19,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 04:05:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:20,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-19 04:05:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-19 04:05:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:05:20,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:20,415 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:20,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:20,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:20,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:05:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:20,655 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:20,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:05:20,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:20,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:21,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-19 04:05:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-19 04:05:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:05:21,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:21,343 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:21,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:21,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:21,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:05:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:21,609 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:21,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 04:05:21,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:21,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-19 04:05:22,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:22,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-19 04:05:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 04:05:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:05:22,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:22,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:22,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:22,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:22,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 04:05:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:22,782 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:22,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 04:05:22,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:22,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2023-11-19 04:05:23,648 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-19 04:05:23,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:05:23,648 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:23,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:23,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:23,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:23,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 04:05:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:24,011 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:24,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:05:24,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:24,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2023-11-19 04:05:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-11-19 04:05:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:05:25,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:25,033 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:25,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:25,037 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:25,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 04:05:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:25,398 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:25,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:05:25,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:25,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:26,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2023-11-19 04:05:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-19 04:05:26,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:05:26,282 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:26,282 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:26,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:26,285 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:26,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 04:05:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:26,712 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:26,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:05:26,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:26,945 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:26,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2023-11-19 04:05:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-19 04:05:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:05:27,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:27,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:27,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:27,692 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:27,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 04:05:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:28,154 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:28,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 04:05:28,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:28,434 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:28,440 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:05:28,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2023-11-19 04:05:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-19 04:05:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:05:29,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:29,441 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:29,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:29,442 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:29,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 04:05:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:29,929 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:30,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 04:05:30,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:05:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:05:30,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 04:05:31,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:05:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2023-11-19 04:05:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-19 04:05:31,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:05:31,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:05:31,300 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:05:31,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:05:31,301 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:05:31,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_904377d6-9f17-4e2a-8a42-aef84d0cb750/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 04:05:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:32,092 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:05:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:05:35,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 04:05:35,285 INFO L285 TraceCheckSpWp]: Computing forward predicates...