./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/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_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/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_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ae4391defacca69a38cbe50f54517d5a9901ae5aadf26a16d1de8c85a3ebd382 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:13:03,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:13:03,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:13:03,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:13:03,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:13:03,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:13:03,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:13:03,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:13:03,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:13:03,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:13:03,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:13:03,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:13:03,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:13:03,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:13:03,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:13:03,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:13:03,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:13:03,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:13:03,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:13:03,998 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:13:03,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:13:03,999 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:13:04,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:13:04,000 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:13:04,001 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:13:04,001 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:13:04,002 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:13:04,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:13:04,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:13:04,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:13:04,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:13:04,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:13:04,005 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:13:04,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:13:04,006 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:13:04,006 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_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae4391defacca69a38cbe50f54517d5a9901ae5aadf26a16d1de8c85a3ebd382 [2023-11-24 22:13:04,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:13:04,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:13:04,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:13:04,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:13:04,351 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:13:04,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c [2023-11-24 22:13:07,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:13:07,658 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:13:07,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/sv-benchmarks/c/float-benchs/filter1.c.v+nlh-reducer.c [2023-11-24 22:13:07,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/data/9c0e29061/eea941a6e93643cdadd8d50e34fdf03d/FLAG03ac74656 [2023-11-24 22:13:07,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/data/9c0e29061/eea941a6e93643cdadd8d50e34fdf03d [2023-11-24 22:13:07,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:13:07,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:13:07,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:13:07,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:13:07,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:13:07,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:07,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c68e3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07, skipping insertion in model container [2023-11-24 22:13:07,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:07,731 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:13:07,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:13:07,923 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:13:07,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:13:07,964 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:13:07,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07 WrapperNode [2023-11-24 22:13:07,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:13:07,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:13:07,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:13:07,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:13:07,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:07,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,004 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2023-11-24 22:13:08,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:13:08,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:13:08,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:13:08,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:13:08,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:13:08,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:13:08,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:13:08,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:13:08,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:13:07" (1/1) ... [2023-11-24 22:13:08,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:13:08,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:13:08,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:13:08,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:13:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 22:13:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 22:13:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:13:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:13:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:13:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:13:08,290 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:13:08,292 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:13:08,556 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:13:08,601 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:13:08,601 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:13:08,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:13:08 BoogieIcfgContainer [2023-11-24 22:13:08,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:13:08,608 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:13:08,610 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:13:08,620 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:13:08,621 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:13:08" (1/1) ... [2023-11-24 22:13:08,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:13:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:08,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 34 states and 48 transitions. [2023-11-24 22:13:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2023-11-24 22:13:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:13:08,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:08,943 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 22:13:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2023-11-24 22:13:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-24 22:13:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:13:09,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:09,136 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 22:13:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2023-11-24 22:13:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2023-11-24 22:13:09,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:13:09,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:09,360 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 22:13:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 52 transitions. [2023-11-24 22:13:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2023-11-24 22:13:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:13:09,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 41 states and 53 transitions. [2023-11-24 22:13:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2023-11-24 22:13:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:13:09,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:09,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 51 states and 70 transitions. [2023-11-24 22:13:09,994 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2023-11-24 22:13:09,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:13:09,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:09,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:10,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 52 states and 70 transitions. [2023-11-24 22:13:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2023-11-24 22:13:10,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:13:10,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:10,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 60 states and 82 transitions. [2023-11-24 22:13:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 82 transitions. [2023-11-24 22:13:10,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:13:10,759 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:10,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:10,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 52 states and 71 transitions. [2023-11-24 22:13:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-11-24 22:13:10,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:13:10,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:10,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:13:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 51 states and 70 transitions. [2023-11-24 22:13:11,801 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2023-11-24 22:13:11,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:13:11,802 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-11-24 22:13:11,814 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-24 22:13:12,041 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2023-11-24 22:13:12,047 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2023-11-24 22:13:12,049 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:13:12,049 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2023-11-24 22:13:12,050 INFO L560 CodeCheckObserver]: Invariant with dag size 13 [2023-11-24 22:13:12,051 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:13:12,051 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-24 22:13:12,052 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:13:12,052 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:13:12,052 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:13:12,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:13:12 ImpRootNode [2023-11-24 22:13:12,053 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:13:12,053 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:13:12,053 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:13:12,054 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:13:12,054 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:13:08" (3/4) ... [2023-11-24 22:13:12,056 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:13:12,060 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2023-11-24 22:13:12,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-24 22:13:12,066 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 22:13:12,066 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:13:12,067 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:13:12,214 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:13:12,215 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:13:12,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:13:12,215 INFO L158 Benchmark]: Toolchain (without parser) took 4518.28ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 121.5MB in the beginning and 98.6MB in the end (delta: 22.9MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,216 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:13:12,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.47ms. Allocated memory is still 155.2MB. Free memory was 120.8MB in the beginning and 109.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 155.2MB. Free memory was 109.6MB in the beginning and 108.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,217 INFO L158 Benchmark]: Boogie Preprocessor took 91.59ms. Allocated memory is still 155.2MB. Free memory was 108.2MB in the beginning and 125.4MB in the end (delta: -17.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,219 INFO L158 Benchmark]: RCFGBuilder took 505.29ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 111.2MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,222 INFO L158 Benchmark]: CodeCheck took 3444.33ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 111.2MB in the beginning and 103.8MB in the end (delta: 7.4MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,222 INFO L158 Benchmark]: Witness Printer took 161.54ms. Allocated memory is still 186.6MB. Free memory was 103.8MB in the beginning and 98.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:13:12,224 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, 34 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 707 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 330 mSDsluCounter, 675 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 206 mSDsCounter, 180 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 680 IncrementalHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 180 mSolverCounterUnsat, 469 mSDtfsCounter, 680 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1308 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 25/27 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 - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((main____CPAchecker_TMP_2 == 0) || (main__i == 0)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: (((main____CPAchecker_TMP_2 == 0) || ((main__i <= 1000000) && (1 <= main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: ((((main__i <= 1000000) && (1 <= main__i)) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) || (main____CPAchecker_TMP_0 == 0)) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (((main__i <= 1000000) && (1 <= main__i)) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (main__i == 0) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.47ms. Allocated memory is still 155.2MB. Free memory was 120.8MB in the beginning and 109.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 155.2MB. Free memory was 109.6MB in the beginning and 108.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.59ms. Allocated memory is still 155.2MB. Free memory was 108.2MB in the beginning and 125.4MB in the end (delta: -17.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.29ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 111.2MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3444.33ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 111.2MB in the beginning and 103.8MB in the end (delta: 7.4MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Witness Printer took 161.54ms. Allocated memory is still 186.6MB. Free memory was 103.8MB in the beginning and 98.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:13:12,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0eb24d-6364-4aa9-8f6e-bf3a2a19e41e/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 Writing output log to file Ultimate.log Result: TRUE