./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi --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 ae4391defacca69a38cbe50f54517d5a9901ae5aadf26a16d1de8c85a3ebd382 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:55:16,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:55:17,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:55:17,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:55:17,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:55:17,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:55:17,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:55:17,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:55:17,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:55:17,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:55:17,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:55:17,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:55:17,137 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:55:17,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:55:17,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:55:17,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:55:17,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:55:17,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:55:17,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:55:17,142 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:55:17,142 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:55:17,143 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:55:17,144 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:55:17,144 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:55:17,145 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:55:17,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:55:17,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:55:17,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:55:17,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:55:17,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:55:17,149 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:55:17,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:55:17,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:55:17,150 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae4391defacca69a38cbe50f54517d5a9901ae5aadf26a16d1de8c85a3ebd382 [2023-11-24 22:55:17,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:55:17,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:55:17,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:55:17,502 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:55:17,502 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:55:17,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c [2023-11-24 22:55:20,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:55:21,064 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:55:21,065 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c [2023-11-24 22:55:21,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data/0aee2d7e6/c6023008e978443082952548cec86056/FLAG93afaefe5 [2023-11-24 22:55:21,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data/0aee2d7e6/c6023008e978443082952548cec86056 [2023-11-24 22:55:21,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:55:21,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:55:21,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:55:21,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:55:21,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:55:21,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69300b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21, skipping insertion in model container [2023-11-24 22:55:21,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:55:21,319 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2023-11-24 22:55:21,330 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2023-11-24 22:55:21,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:55:21,351 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:55:21,369 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2023-11-24 22:55:21,374 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2023-11-24 22:55:21,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:55:21,395 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:55:21,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21 WrapperNode [2023-11-24 22:55:21,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:55:21,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:55:21,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:55:21,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:55:21,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,460 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2023-11-24 22:55:21,461 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:55:21,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:55:21,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:55:21,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:55:21,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:55:21,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:55:21,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:55:21,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:55:21,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:21" (1/1) ... [2023-11-24 22:55:21,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:55:21,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:55:21,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:55:21,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:55:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:55:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:55:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:55:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:55:21,713 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:55:21,715 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:55:21,968 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:55:22,003 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:55:22,003 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:55:22,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:55:22 BoogieIcfgContainer [2023-11-24 22:55:22,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:55:22,006 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:55:22,006 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:55:22,017 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:55:22,018 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:55:22" (1/1) ... [2023-11-24 22:55:22,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:55:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:55:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-11-24 22:55:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-11-24 22:55:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:55:22,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:55:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:55:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:55:22,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:55:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2023-11-24 22:55:22,548 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-24 22:55:22,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:55:22,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:55:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:55:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:55:22,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:55:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:55:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:55:22,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:55:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:55:22,754 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:55:22,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:55:22 ImpRootNode [2023-11-24 22:55:22,818 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:55:22,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:55:22,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:55:22,819 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:55:22,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:55:22" (3/4) ... [2023-11-24 22:55:22,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:55:22,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:55:22,825 INFO L158 Benchmark]: Toolchain (without parser) took 1729.27ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 99.1MB in the beginning and 178.3MB in the end (delta: -79.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:55:22,825 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:55:22,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.96ms. Allocated memory is still 138.4MB. Free memory was 98.6MB in the beginning and 86.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:55:22,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.82ms. Allocated memory is still 138.4MB. Free memory was 86.5MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:55:22,827 INFO L158 Benchmark]: Boogie Preprocessor took 58.05ms. Allocated memory is still 138.4MB. Free memory was 84.9MB in the beginning and 83.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:55:22,828 INFO L158 Benchmark]: RCFGBuilder took 484.51ms. Allocated memory is still 138.4MB. Free memory was 83.3MB in the beginning and 69.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:55:22,829 INFO L158 Benchmark]: CodeCheck took 812.28ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 69.7MB in the beginning and 178.3MB in the end (delta: -108.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:55:22,830 INFO L158 Benchmark]: Witness Printer took 4.69ms. Allocated memory is still 207.6MB. Free memory was 178.3MB in the beginning and 178.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:55:22,833 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, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 11 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 59]: 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 46, overapproximation of to_real at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 177. Possible FailurePath: [L1] int __return_main; [L13] int __tmp_129_0; [L14] int __tmp_129_1; [L15] int __tmp_129_2; [L16] int __tmp_112_0; [L17] int __return_134; [L20] double main__E0; [L21] double main__E1; [L22] double main__S; [L23] int main__i; [L24] main__E1 = 0 [L25] main__S = 0 [L26] main__i = 0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__i=0] [L27] COND TRUE main__i <= 1000000 [L29] main__E0 = __VERIFIER_nondet_double() [L30] int main____CPAchecker_TMP_0; VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__i=0] [L31] COND TRUE main__E0 >= -1.0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__i=0] [L33] COND TRUE main__E0 <= 1.0 [L35] main____CPAchecker_TMP_0 = 1 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L36] COND TRUE main____CPAchecker_TMP_0 != 0 [L38] int main____CPAchecker_TMP_1; [L39] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L40] COND TRUE !(main____CPAchecker_TMP_1 == 0) [L42] main__S = 0 [L44] main__E1 = main__E0 [L45] int main____CPAchecker_TMP_2; VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=2, main__E1=2, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main__i=0] [L46] COND FALSE !(main__S >= -10000.0) VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=2, main__E1=2, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main__i=0] [L166] main____CPAchecker_TMP_2 = 0 VAL [__return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=2, main__E1=2, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__i=0] [L53] int __tmp_1; [L54] __tmp_1 = main____CPAchecker_TMP_2 [L55] int __VERIFIER_assert__cond; [L56] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __tmp_1=0, main__E0=2, main__E1=2, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__i=0] [L57] COND TRUE __VERIFIER_assert__cond == 0 VAL [__VERIFIER_assert__cond=0, __return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __tmp_1=0, main__E0=2, main__E1=2, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__i=0] [L59] reach_error() VAL [__VERIFIER_assert__cond=0, __return_134=0, __return_main=0, __tmp_112_0=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __tmp_1=0, main__E0=2, main__E1=2, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__i=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.96ms. Allocated memory is still 138.4MB. Free memory was 98.6MB in the beginning and 86.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.82ms. Allocated memory is still 138.4MB. Free memory was 86.5MB in the beginning and 84.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.05ms. Allocated memory is still 138.4MB. Free memory was 84.9MB in the beginning and 83.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.51ms. Allocated memory is still 138.4MB. Free memory was 83.3MB in the beginning and 69.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 812.28ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 69.7MB in the beginning and 178.3MB in the end (delta: -108.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.69ms. Allocated memory is still 207.6MB. Free memory was 178.3MB in the beginning and 178.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:55:22,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi --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 ae4391defacca69a38cbe50f54517d5a9901ae5aadf26a16d1de8c85a3ebd382 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:55:25,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:55:25,968 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:55:26,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:55:26,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:55:26,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:55:26,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:55:26,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:55:26,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:55:26,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:55:26,036 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:55:26,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:55:26,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:55:26,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:55:26,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:55:26,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:55:26,045 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:55:26,046 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:55:26,046 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:55:26,047 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:55:26,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:55:26,049 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:55:26,049 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:55:26,050 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:55:26,050 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:55:26,051 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:55:26,051 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:55:26,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:55:26,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:55:26,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:55:26,055 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:55:26,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:55:26,055 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:55:26,056 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:55:26,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:55:26,057 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:55:26,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:55:26,058 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae4391defacca69a38cbe50f54517d5a9901ae5aadf26a16d1de8c85a3ebd382 [2023-11-24 22:55:26,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:55:26,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:55:26,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:55:26,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:55:26,604 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:55:26,606 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c [2023-11-24 22:55:29,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:55:30,218 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:55:30,220 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c [2023-11-24 22:55:30,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data/81b9e76e6/6f3f91d0dc804154840452523ed15e23/FLAGf12d7da2a [2023-11-24 22:55:30,253 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/data/81b9e76e6/6f3f91d0dc804154840452523ed15e23 [2023-11-24 22:55:30,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:55:30,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:55:30,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:55:30,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:55:30,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:55:30,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d03dd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30, skipping insertion in model container [2023-11-24 22:55:30,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,321 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:55:30,573 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2023-11-24 22:55:30,597 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2023-11-24 22:55:30,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:55:30,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:55:30,670 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[1372,1385] [2023-11-24 22:55:30,684 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_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c[2411,2424] [2023-11-24 22:55:30,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:55:30,720 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:55:30,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30 WrapperNode [2023-11-24 22:55:30,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:55:30,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:55:30,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:55:30,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:55:30,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,791 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 136 [2023-11-24 22:55:30,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:55:30,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:55:30,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:55:30,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:55:30,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:55:30,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:55:30,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:55:30,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:55:30,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:55:30" (1/1) ... [2023-11-24 22:55:30,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:55:30,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:55:30,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:55:30,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:55:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:55:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:55:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:55:31,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:55:31,108 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:55:31,111 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:55:51,706 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:55:51,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:55:51,746 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:55:51,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:55:51 BoogieIcfgContainer [2023-11-24 22:55:51,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:55:51,749 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:55:51,749 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:55:51,759 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:55:51,759 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:55:51" (1/1) ... [2023-11-24 22:55:51,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:55:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:55:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-11-24 22:55:51,822 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-11-24 22:55:51,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:55:51,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:55:51,825 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:55:51,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:55:51,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:55:51,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:55:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:52,111 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:55:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:52,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:55:52,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:55:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:55:52,295 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:55:52,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:55:56,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 22:55:57,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:55:57,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2023-11-24 22:55:57,118 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2023-11-24 22:55:57,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:55:57,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:55:57,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:55:57,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:55:57,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:55:57,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:55:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:57,913 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:55:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:55:59,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:55:59,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:56:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:56:00,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:56:13,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-24 22:56:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:56:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2023-11-24 22:56:13,418 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2023-11-24 22:56:13,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:56:13,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:56:13,419 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:56:13,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:56:13,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:56:13,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:56:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:56:14,069 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:56:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:56:15,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 22:56:15,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:56:16,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:56:16,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:56:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:56:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-11-24 22:56:17,619 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-11-24 22:56:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:56:17,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:56:17,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:56:17,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:56:17,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:56:17,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 22:56:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:56:17,845 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:56:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:56:17,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:56:17,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:56:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:56:18,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_544d3d9a-32dd-4cf0-95d2-772ac6fe54a5/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0