./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.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_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9 --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 eb7e704db84b45f8c7f1cb386fc610e1107f57c6e67c0a3b2af510d7426cfd4f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:52:20,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:52:20,493 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-03 04:52:20,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:52:20,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:52:20,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:52:20,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:52:20,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:52:20,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:52:20,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:52:20,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:52:20,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:52:20,524 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:52:20,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:52:20,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:52:20,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:52:20,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:52:20,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:52:20,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:52:20,527 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:52:20,528 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:52:20,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:52:20,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:52:20,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:52:20,530 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:52:20,531 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:52:20,531 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:52:20,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:52:20,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:52:20,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:52:20,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:52:20,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:52:20,533 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:52:20,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:52:20,534 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:52:20,534 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_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb7e704db84b45f8c7f1cb386fc610e1107f57c6e67c0a3b2af510d7426cfd4f [2023-12-03 04:52:20,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:52:20,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:52:20,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:52:20,820 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:52:20,821 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:52:20,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c [2023-12-03 04:52:23,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:52:23,651 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:52:23,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c [2023-12-03 04:52:23,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/data/a0c7fd0f3/3ea7b64d9ff04d0c9a8dd7371909b86b/FLAG6865db7dd [2023-12-03 04:52:23,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/data/a0c7fd0f3/3ea7b64d9ff04d0c9a8dd7371909b86b [2023-12-03 04:52:23,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:52:23,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:52:23,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:52:23,674 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:52:23,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:52:23,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b53f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23, skipping insertion in model container [2023-12-03 04:52:23,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:52:23,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:52:23,862 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:52:23,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:52:23,903 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:52:23,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23 WrapperNode [2023-12-03 04:52:23,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:52:23,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:52:23,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:52:23,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:52:23,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,940 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2023-12-03 04:52:23,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:52:23,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:52:23,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:52:23,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:52:23,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:52:23,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:52:23,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:52:23,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:52:23,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:52:23" (1/1) ... [2023-12-03 04:52:23,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:52:23,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:52:23,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:52:23,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:52:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:52:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:52:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:52:24,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:52:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 04:52:24,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 04:52:24,120 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:52:24,122 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:52:24,342 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:52:24,397 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:52:24,397 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 04:52:24,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:52:24 BoogieIcfgContainer [2023-12-03 04:52:24,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:52:24,400 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:52:24,400 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:52:24,410 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:52:24,410 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:52:24" (1/1) ... [2023-12-03 04:52:24,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:52:24,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2023-12-03 04:52:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2023-12-03 04:52:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 04:52:24,470 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:24,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-12-03 04:52:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-12-03 04:52:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:52:24,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:24,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:24,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:24,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2023-12-03 04:52:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2023-12-03 04:52:24,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:52:24,786 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:24,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2023-12-03 04:52:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-12-03 04:52:24,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:52:24,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:24,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2023-12-03 04:52:25,081 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2023-12-03 04:52:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:52:25,082 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:25,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:25,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2023-12-03 04:52:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2023-12-03 04:52:25,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 04:52:25,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:25,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2023-12-03 04:52:25,623 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-12-03 04:52:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 04:52:25,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:25,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 44 states and 64 transitions. [2023-12-03 04:52:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-12-03 04:52:25,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 04:52:25,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:25,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 45 states and 67 transitions. [2023-12-03 04:52:25,889 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2023-12-03 04:52:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 04:52:25,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:25,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 68 transitions. [2023-12-03 04:52:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-12-03 04:52:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 04:52:26,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:26,201 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:26,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2023-12-03 04:52:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2023-12-03 04:52:26,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 04:52:26,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:26,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:26,567 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 54 states and 79 transitions. [2023-12-03 04:52:26,653 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2023-12-03 04:52:26,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 04:52:26,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:26,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 55 states and 83 transitions. [2023-12-03 04:52:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2023-12-03 04:52:26,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 04:52:26,745 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:26,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:26,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:26,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 55 states and 80 transitions. [2023-12-03 04:52:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-12-03 04:52:26,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 04:52:26,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:26,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 59 states and 88 transitions. [2023-12-03 04:52:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2023-12-03 04:52:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 04:52:27,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:27,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 62 states and 91 transitions. [2023-12-03 04:52:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2023-12-03 04:52:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 04:52:27,623 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:27,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 63 states and 96 transitions. [2023-12-03 04:52:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2023-12-03 04:52:27,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 04:52:27,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:27,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:28,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 63 states and 92 transitions. [2023-12-03 04:52:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2023-12-03 04:52:28,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 04:52:28,073 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:28,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:28,218 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:28,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 67 states and 100 transitions. [2023-12-03 04:52:28,612 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-12-03 04:52:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 04:52:28,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:28,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2023-12-03 04:52:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2023-12-03 04:52:28,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-03 04:52:28,858 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:28,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:28,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 04:52:28,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:52:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-03 04:52:29,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 81 states and 126 transitions. [2023-12-03 04:52:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 126 transitions. [2023-12-03 04:52:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 04:52:29,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:29,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 04:52:29,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:52:29,516 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-03 04:52:30,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:30,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 94 states and 155 transitions. [2023-12-03 04:52:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 155 transitions. [2023-12-03 04:52:30,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 04:52:30,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 95 states and 155 transitions. [2023-12-03 04:52:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 155 transitions. [2023-12-03 04:52:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 04:52:30,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 89 states and 141 transitions. [2023-12-03 04:52:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2023-12-03 04:52:30,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 04:52:30,804 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:31,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:31,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 89 states and 140 transitions. [2023-12-03 04:52:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 140 transitions. [2023-12-03 04:52:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-03 04:52:31,182 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:31,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:31,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 88 states and 139 transitions. [2023-12-03 04:52:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 139 transitions. [2023-12-03 04:52:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 04:52:31,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:31,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-03 04:52:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:31,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 76 states and 113 transitions. [2023-12-03 04:52:31,855 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 113 transitions. [2023-12-03 04:52:31,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 04:52:31,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:31,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:31,952 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 04:52:32,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 76 states and 112 transitions. [2023-12-03 04:52:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 112 transitions. [2023-12-03 04:52:32,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 04:52:32,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:32,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:32,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 04:52:32,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:52:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-03 04:52:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 89 states and 138 transitions. [2023-12-03 04:52:32,862 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 138 transitions. [2023-12-03 04:52:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 04:52:32,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:32,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:32,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 04:52:32,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:52:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-03 04:52:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 102 states and 164 transitions. [2023-12-03 04:52:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2023-12-03 04:52:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-03 04:52:33,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:33,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:33,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 04:52:33,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:52:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 510 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-03 04:52:34,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 115 states and 190 transitions. [2023-12-03 04:52:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 190 transitions. [2023-12-03 04:52:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-03 04:52:34,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:52:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:52:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:52:34,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 04:52:34,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:52:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 841 proven. 4 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-03 04:52:35,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:52:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 104 states and 171 transitions. [2023-12-03 04:52:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2023-12-03 04:52:35,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 04:52:35,284 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2023-12-03 04:52:35,292 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-12-03 04:52:35,425 INFO L560 CodeCheckObserver]: Invariant with dag size 24 [2023-12-03 04:52:35,431 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 04:52:35,431 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 04:52:35,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:52:35 ImpRootNode [2023-12-03 04:52:35,431 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:52:35,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:52:35,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:52:35,432 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:52:35,432 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:52:24" (3/4) ... [2023-12-03 04:52:35,434 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 04:52:35,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 04:52:35,442 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-03 04:52:35,442 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-12-03 04:52:35,443 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 04:52:35,443 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 04:52:35,539 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 04:52:35,540 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 04:52:35,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:52:35,541 INFO L158 Benchmark]: Toolchain (without parser) took 11867.57ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 117.4MB in the beginning and 122.4MB in the end (delta: -5.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,541 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:52:35,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.99ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 105.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.04ms. Allocated memory is still 151.0MB. Free memory was 105.7MB in the beginning and 103.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,542 INFO L158 Benchmark]: Boogie Preprocessor took 23.91ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 102.8MB in the end (delta: 712.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,543 INFO L158 Benchmark]: RCFGBuilder took 433.12ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 108.3MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,543 INFO L158 Benchmark]: CodeCheck took 11031.48ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 108.3MB in the beginning and 127.6MB in the end (delta: -19.2MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,544 INFO L158 Benchmark]: Witness Printer took 108.40ms. Allocated memory is still 182.5MB. Free memory was 127.6MB in the beginning and 122.4MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 04:52:35,546 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, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2829 SdHoareTripleChecker+Valid, 11.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2331 mSDsluCounter, 2226 SdHoareTripleChecker+Invalid, 9.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1398 mSDsCounter, 2492 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8098 IncrementalHoareTripleChecker+Invalid, 10590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2492 mSolverCounterUnsat, 828 mSDtfsCounter, 8098 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7182 GetRequests, 6457 SyntacticMatches, 559 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17237 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 866 NumberOfCodeBlocks, 866 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 835 ConstructedInterpolants, 0 QuantifiedInterpolants, 2491 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1239 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 1453/2764 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((counter <= 1) && (1 <= counter)) || ((counter <= 3) && (2 < counter))) || ((counter <= 5) && (4 < counter))) || (counter == 0)) || ((1 < counter) && (counter <= 2))) || ((counter <= 4) && (3 < counter))) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.99ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 105.7MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.04ms. Allocated memory is still 151.0MB. Free memory was 105.7MB in the beginning and 103.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.91ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 102.8MB in the end (delta: 712.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.12ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 108.3MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 11031.48ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 108.3MB in the beginning and 127.6MB in the end (delta: -19.2MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 108.40ms. Allocated memory is still 182.5MB. Free memory was 127.6MB in the beginning and 122.4MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 04:52:35,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b710ba-7e32-4a12-9852-1caf66be4f4d/bin/ukojak-verify-Qdu7aM0XO9/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