./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1271b.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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:02:07,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:02:07,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:02:07,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:02:07,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:02:07,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:02:07,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:02:07,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:02:07,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:02:07,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:02:07,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:02:07,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:02:07,284 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:02:07,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:02:07,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:02:07,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:02:07,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:02:07,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:02:07,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:02:07,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:02:07,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:02:07,295 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:02:07,296 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:02:07,296 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:02:07,297 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:02:07,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:02:07,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:07,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:02:07,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:02:07,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:02:07,301 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:02:07,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:02:07,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:02:07,304 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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 [2023-11-24 23:02:07,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:02:07,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:02:07,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:02:07,680 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:02:07,680 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:02:07,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2023-11-24 23:02:10,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:02:11,081 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:02:11,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2023-11-24 23:02:11,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data/8404df0f4/0ba1360205804fa8a00cc21b8c09018c/FLAG5f146f749 [2023-11-24 23:02:11,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data/8404df0f4/0ba1360205804fa8a00cc21b8c09018c [2023-11-24 23:02:11,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:02:11,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:02:11,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:11,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:02:11,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:02:11,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518805ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11, skipping insertion in model container [2023-11-24 23:02:11,144 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,193 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:02:11,451 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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c[4883,4896] [2023-11-24 23:02:11,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:11,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:02:11,517 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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c[4883,4896] [2023-11-24 23:02:11,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:11,534 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:02:11,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11 WrapperNode [2023-11-24 23:02:11,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:11,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:11,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:02:11,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:02:11,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,609 INFO L138 Inliner]: procedures = 19, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 277 [2023-11-24 23:02:11,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:11,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:02:11,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:02:11,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:02:11,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:02:11,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:02:11,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:02:11,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:02:11,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:11" (1/1) ... [2023-11-24 23:02:11,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:11,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:02:11,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:02:11,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:02:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:02:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:02:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:02:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:02:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:02:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:02:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:02:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:02:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:02:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:02:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-24 23:02:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-24 23:02:11,863 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:02:11,865 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:02:12,414 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:02:12,545 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:02:12,545 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-24 23:02:12,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:12 BoogieIcfgContainer [2023-11-24 23:02:12,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:02:12,548 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:02:12,548 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:02:12,559 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:02:12,559 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:12" (1/1) ... [2023-11-24 23:02:12,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:02:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 76 states and 125 transitions. [2023-11-24 23:02:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 125 transitions. [2023-11-24 23:02:12,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:02:12,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:12,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:12,789 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 23:02:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 76 states and 114 transitions. [2023-11-24 23:02:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 114 transitions. [2023-11-24 23:02:12,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:12,820 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:12,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:02:13,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:02:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:02:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:02:13,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:02:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:02:13,364 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 23:02:13,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:02:13 ImpRootNode [2023-11-24 23:02:13,396 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:02:13,396 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:02:13,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:02:13,397 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:02:13,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:12" (3/4) ... [2023-11-24 23:02:13,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:02:13,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:02:13,401 INFO L158 Benchmark]: Toolchain (without parser) took 2271.39ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 66.3MB in the end (delta: 33.9MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2023-11-24 23:02:13,402 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory was 62.8MB in the beginning and 62.6MB in the end (delta: 135.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:02:13,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.13ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 85.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 23:02:13,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.83ms. Allocated memory is still 144.7MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:02:13,404 INFO L158 Benchmark]: Boogie Preprocessor took 68.45ms. Allocated memory is still 144.7MB. Free memory was 83.4MB in the beginning and 80.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:02:13,404 INFO L158 Benchmark]: RCFGBuilder took 854.95ms. Allocated memory is still 144.7MB. Free memory was 80.7MB in the beginning and 102.8MB in the end (delta: -22.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-24 23:02:13,405 INFO L158 Benchmark]: CodeCheck took 847.54ms. Allocated memory is still 144.7MB. Free memory was 102.8MB in the beginning and 67.1MB in the end (delta: 35.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-24 23:02:13,405 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 144.7MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:02:13,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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: 241]: 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 someBinaryFLOATComparisonOperation at line 213, overapproximation of someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L234] float x = __VERIFIER_nondet_float(); [L235] float y = 0.0f / 0.0f; [L237] CALL isfinite_float(x) [L217] __int32_t ix; VAL [\old(x)=2, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2] [L219] ieee_float_shape_type gf_u; [L220] EXPR gf_u.value = (x) [L221] EXPR gf_u.word [L221] EXPR (ix) = gf_u.word [L218-L222] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=2, ix=10112, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2] [L223] ix &= 0x7fffffff [L224] return (((ix) < 0x7f800000L)); [L237] RET isfinite_float(x) [L237] COND TRUE isfinite_float(x) [L238] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=2, \old(y)=9, a=2, b=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L88] ieee_float_shape_type gf_u; [L89] EXPR gf_u.value = (x) [L90] EXPR gf_u.word [L90] EXPR (ha) = gf_u.word [L87-L91] { ieee_float_shape_type gf_u; gf_u.value = (x); (ha) = gf_u.word; } VAL [\old(x)=2, \old(y)=9, a=2, b=9, ha=251668354, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L92] ha &= 0x7fffffffL VAL [\old(x)=2, \old(y)=9, a=2, b=9, ha=251668354, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L94] ieee_float_shape_type gf_u; [L95] EXPR gf_u.value = (y) [L96] EXPR gf_u.word [L96] EXPR (hb) = gf_u.word [L93-L97] { ieee_float_shape_type gf_u; gf_u.value = (y); (hb) = gf_u.word; } VAL [\old(x)=2, \old(y)=9, a=2, b=9, ha=251668354, hb=10113, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L98] hb &= 0x7fffffffL [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [\old(x)=2, \old(y)=9, a=2, b=9, ha=251668354, hb=10113, j=23, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L110] ieee_float_shape_type sf_u; [L111] EXPR sf_u.word = (ha) [L112] EXPR sf_u.value [L112] EXPR (a) = sf_u.value [L109-L113] { ieee_float_shape_type sf_u; sf_u.word = (ha); (a) = sf_u.value; } VAL [\old(x)=2, \old(y)=9, a=8, b=9, ha=251668354, hb=10113, j=23, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L115] ieee_float_shape_type sf_u; [L116] EXPR sf_u.word = (hb) [L117] EXPR sf_u.value [L117] EXPR (b) = sf_u.value [L114-L118] { ieee_float_shape_type sf_u; sf_u.word = (hb); (b) = sf_u.value; } VAL [\old(x)=2, \old(y)=9, a=8, b=6, ha=251668354, hb=10113, j=23, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=2, \old(y)=9, a=8, b=6, ha=251668354, hb=10113, j=23, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] [L238] RET, EXPR __ieee754_hypotf(x, y) [L238] float res = __ieee754_hypotf(x, y); [L240] CALL, EXPR isnan_float(res) [L213] return x != x; [L240] RET, EXPR isnan_float(res) [L240] COND TRUE !isnan_float(res) [L241] reach_error() VAL [one_sqrt=1, res=11, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=9] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory was 62.8MB in the beginning and 62.6MB in the end (delta: 135.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.13ms. Allocated memory is still 144.7MB. Free memory was 100.2MB in the beginning and 85.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.83ms. Allocated memory is still 144.7MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.45ms. Allocated memory is still 144.7MB. Free memory was 83.4MB in the beginning and 80.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 854.95ms. Allocated memory is still 144.7MB. Free memory was 80.7MB in the beginning and 102.8MB in the end (delta: -22.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * CodeCheck took 847.54ms. Allocated memory is still 144.7MB. Free memory was 102.8MB in the beginning and 67.1MB in the end (delta: 35.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 144.7MB. Free memory is still 66.3MB. 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 23:02:13,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:02:16,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:02:16,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:02:16,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:02:16,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:02:16,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:02:16,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:02:16,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:02:16,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:02:16,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:02:16,234 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:02:16,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:02:16,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:02:16,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:02:16,237 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:02:16,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:02:16,238 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:02:16,238 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:02:16,238 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:02:16,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:02:16,240 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:02:16,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:02:16,241 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:02:16,241 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:02:16,242 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:02:16,242 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:16,242 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:02:16,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:02:16,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:16,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:02:16,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:02:16,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:02:16,246 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:02:16,246 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:16,246 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:02:16,247 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:02:16,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:02:16,247 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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54beaedde19fb88c3dc27e1161ae96882063bbaad8d02ac66ce4442258b91813 [2023-11-24 23:02:16,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:02:16,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:02:16,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:02:16,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:02:16,666 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:02:16,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2023-11-24 23:02:19,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:02:20,192 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:02:20,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c [2023-11-24 23:02:20,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data/8cb7ca2f0/d7eaa5f5f4804bb2a3c5105a2c9f6c47/FLAG5b25b5e94 [2023-11-24 23:02:20,241 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/data/8cb7ca2f0/d7eaa5f5f4804bb2a3c5105a2c9f6c47 [2023-11-24 23:02:20,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:02:20,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:02:20,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:20,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:02:20,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:02:20,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1b3010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20, skipping insertion in model container [2023-11-24 23:02:20,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:02:20,620 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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c[4883,4896] [2023-11-24 23:02:20,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:20,646 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:02:20,735 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_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/sv-benchmarks/c/float-newlib/float_req_bl_1271b.c[4883,4896] [2023-11-24 23:02:20,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:20,754 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:02:20,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20 WrapperNode [2023-11-24 23:02:20,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:20,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:20,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:02:20,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:02:20,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,814 INFO L138 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2023-11-24 23:02:20,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:20,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:02:20,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:02:20,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:02:20,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,833 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:02:20,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:02:20,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:02:20,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:02:20,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:20" (1/1) ... [2023-11-24 23:02:20,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:20,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:02:20,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:02:20,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:02:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:02:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:02:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:02:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 23:02:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:02:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:02:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:02:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:02:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:02:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:02:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-24 23:02:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-24 23:02:21,100 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:02:21,102 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:02:23,786 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:02:23,918 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:02:23,918 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-24 23:02:23,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:23 BoogieIcfgContainer [2023-11-24 23:02:23,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:02:23,921 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:02:23,922 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:02:23,932 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:02:23,932 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:23" (1/1) ... [2023-11-24 23:02:23,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:02:24,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 74 states and 122 transitions. [2023-11-24 23:02:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 122 transitions. [2023-11-24 23:02:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 23:02:24,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:24,025 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:24,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:24,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:24,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:02:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:24,306 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:24,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:02:24,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:24,381 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 23:02:24,384 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:02:24,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:02:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 74 states and 111 transitions. [2023-11-24 23:02:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2023-11-24 23:02:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:24,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:24,671 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:24,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:24,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:24,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 23:02:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:25,205 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:25,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-24 23:02:25,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:25,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:02:25,992 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:02:25,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:02:26,592 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:02:26,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:02:27,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:02:28,651 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 23:02:28,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 23:02:40,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 23:02:47,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:02:47,940 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:02:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:47,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:47,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:47,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:47,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:47,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:02:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:48,675 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:48,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-24 23:02:48,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:48,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:02:49,190 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:02:49,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:02:49,575 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:02:49,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:02:49,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:02:50,584 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 23:02:50,595 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:02:50,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 23:02:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:02:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:02:50,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:50,670 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:50,671 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:50,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:50,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:50,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 23:02:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:51,327 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:51,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 23:02:51,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:51,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:02:51,781 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:02:51,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:02:52,155 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:02:52,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:02:52,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:02:53,200 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 23:02:53,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-24 23:02:53,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:02:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:02:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:53,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:53,250 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:53,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:53,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:53,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 23:02:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:53,852 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:53,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 23:02:53,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:54,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:02:54,403 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:02:54,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:02:54,819 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:02:54,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:02:55,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:02:55,855 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 23:02:55,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 23:02:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:02:55,915 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:02:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:55,917 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:55,918 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:55,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:55,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:55,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 23:02:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:56,592 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:56,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 23:02:56,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:56,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:02:57,071 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:02:57,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:02:57,491 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:02:57,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:02:57,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:02:58,606 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 23:02:58,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-24 23:02:58,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:02:58,649 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:02:58,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:02:58,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:58,660 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:02:58,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:02:58,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:02:58,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:02:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:59,289 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:02:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:59,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-24 23:02:59,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:02:59,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:02:59,764 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:02:59,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:03:00,151 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:03:00,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:03:00,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:03:01,134 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 23:03:01,139 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 23:03:01,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:03:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:03:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:03:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:03:01,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:01,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:03:01,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:03:01,179 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:03:01,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 23:03:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:01,712 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:03:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:01,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-24 23:03:01,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:03:01,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:03:02,085 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:03:02,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22 [2023-11-24 23:03:02,401 INFO L349 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2023-11-24 23:03:02,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 51 [2023-11-24 23:03:02,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2023-11-24 23:03:03,390 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 23:03:03,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-24 23:03:03,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:03:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 86 states and 134 transitions. [2023-11-24 23:03:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-11-24 23:03:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 23:03:03,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:03:03,423 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:03:03,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:03:03,426 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:03:03,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d0c0ff1-40c2-4731-9642-c2bbbc7b5c19/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-24 23:03:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:03,997 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:03:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:03:04,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-24 23:03:04,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:03:04,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:03:04,389 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 23:03:04,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 22