./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/prod4br-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/prod4br-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9fc373a278835802938e4c08f2544f1651ce1de6dc177c0a58501e43687c477d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:05:38,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:05:38,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:05:38,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:05:38,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:05:38,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:05:38,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:05:38,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:05:38,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:05:38,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:05:38,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:05:38,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:05:38,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:05:38,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:05:38,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:05:38,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:05:38,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:05:38,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:05:38,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:05:38,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:05:38,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:05:38,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:05:38,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:05:38,225 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:05:38,226 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:05:38,226 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:05:38,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:05:38,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:38,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:05:38,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:05:38,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:05:38,228 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:05:38,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:05:38,229 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_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc373a278835802938e4c08f2544f1651ce1de6dc177c0a58501e43687c477d [2024-11-08 22:05:38,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:05:38,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:05:38,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:05:38,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:05:38,633 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:05:38,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/nla-digbench/prod4br-ll.c Unable to find full path for "g++" [2024-11-08 22:05:40,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:05:41,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:05:41,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/sv-benchmarks/c/nla-digbench/prod4br-ll.c [2024-11-08 22:05:41,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/data/40fadd97c/43fdfe4a7c0248eab784a5240df14587/FLAG6b4f03c61 [2024-11-08 22:05:41,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/data/40fadd97c/43fdfe4a7c0248eab784a5240df14587 [2024-11-08 22:05:41,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:05:41,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:05:41,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:41,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:05:41,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:05:41,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63697e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41, skipping insertion in model container [2024-11-08 22:05:41,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:05:41,501 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/sv-benchmarks/c/nla-digbench/prod4br-ll.c[524,537] [2024-11-08 22:05:41,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:41,536 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:05:41,550 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/sv-benchmarks/c/nla-digbench/prod4br-ll.c[524,537] [2024-11-08 22:05:41,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:41,579 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:05:41,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41 WrapperNode [2024-11-08 22:05:41,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:41,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:41,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:05:41,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:05:41,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,620 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-11-08 22:05:41,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:41,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:05:41,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:05:41,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:05:41,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:05:41,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:05:41,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:05:41,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:05:41,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:41" (1/1) ... [2024-11-08 22:05:41,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:41,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:05:41,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:05:41,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53be77d3-f6e9-48af-bec7-48b4f804b1bd/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:05:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:05:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:05:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:05:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:05:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 22:05:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 22:05:41,814 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:05:41,817 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:05:42,083 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 22:05:42,083 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:05:42,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:05:42,250 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:05:42,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:42 BoogieIcfgContainer [2024-11-08 22:05:42,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:05:42,254 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:05:42,255 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:05:42,267 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:05:42,268 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:42" (1/1) ... [2024-11-08 22:05:42,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:05:42,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-08 22:05:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-08 22:05:42,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 22:05:42,352 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:42,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:05:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:05:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:05:42,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 22:05:42,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:05:42,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:05:42,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2024-11-08 22:05:42,895 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2024-11-08 22:05:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 22:05:42,902 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:42,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:05:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:05:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:05:42,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 22:05:42,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:05:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:06:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 24 states and 41 transitions. [2024-11-08 22:06:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 41 transitions. [2024-11-08 22:06:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 22:06:04,706 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:04,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:06:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:04,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 22:06:04,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:06:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:06:12,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:06:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:12,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 27 states and 49 transitions. [2024-11-08 22:06:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 49 transitions. [2024-11-08 22:06:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 22:06:12,389 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:12,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:06:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:12,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 22:06:12,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:06:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 22:06:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2024-11-08 22:06:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2024-11-08 22:06:13,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 22:06:13,519 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:13,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:06:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:13,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 22:06:13,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:06:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 22:06:16,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:06:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 31 states and 59 transitions. [2024-11-08 22:06:17,101 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 59 transitions. [2024-11-08 22:06:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 22:06:17,102 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:17,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:06:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:17,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 22:06:17,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:06:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 22:06:41,880 WARN L286 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 60 DAG size of output: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:06:46,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:07:13,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:07:16,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:07:19,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-08 22:07:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:07:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 34 states and 67 transitions. [2024-11-08 22:07:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 67 transitions. [2024-11-08 22:07:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 22:07:19,697 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:07:19,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:07:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:07:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:07:19,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 22:07:19,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:07:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 22:07:46,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:07:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 35 states and 70 transitions. [2024-11-08 22:07:46,590 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 70 transitions. [2024-11-08 22:07:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 22:07:46,591 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:07:46,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:07:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:07:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:07:46,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 22:07:46,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:07:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 22:07:48,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:07:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 36 states and 72 transitions. [2024-11-08 22:07:48,332 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 72 transitions. [2024-11-08 22:07:48,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 22:07:48,334 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:07:48,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:07:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 22:07:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:07:48,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-08 22:07:48,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:08:02,366 WARN L286 SmtUtils]: Spent 10.21s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:08:16,763 WARN L286 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:08:27,515 WARN L286 SmtUtils]: Spent 10.61s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:08:37,710 WARN L286 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:09:31,198 WARN L286 SmtUtils]: Spent 26.41s on a formula simplification that was a NOOP. DAG size: 101 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:10:00,880 WARN L286 SmtUtils]: Spent 21.75s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:10:22,084 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:10:32,190 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:10:47,104 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:11:15,124 WARN L286 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:11:29,465 WARN L286 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:11:35,270 WARN L286 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:11:58,440 WARN L286 SmtUtils]: Spent 11.36s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:12:25,603 WARN L286 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:12:37,940 WARN L286 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:15:04,471 WARN L286 SmtUtils]: Spent 1.96m on a formula simplification that was a NOOP. DAG size: 261 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:15:16,798 WARN L286 SmtUtils]: Spent 11.49s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:15:28,155 WARN L286 SmtUtils]: Spent 11.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:16:06,350 WARN L286 SmtUtils]: Spent 12.17s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:16:31,820 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:16:42,468 WARN L286 SmtUtils]: Spent 10.65s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:16:52,779 WARN L286 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:17:04,641 WARN L286 SmtUtils]: Spent 11.71s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:17:16,933 WARN L286 SmtUtils]: Spent 12.29s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:17:33,005 WARN L286 SmtUtils]: Spent 10.84s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 22:18:05,021 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 22:19:02,393 WARN L286 SmtUtils]: Spent 25.45s on a formula simplification that was a NOOP. DAG size: 102 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:19:36,560 WARN L286 SmtUtils]: Spent 21.26s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:20:06,965 WARN L286 SmtUtils]: Spent 27.44s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-08 22:20:09,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []