./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_2_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL --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 edf451b08ccf28b9358a6fa7c10128ea1b9a8f09b01361f9cd588dc4a31f271a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:42,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:42,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:59:42,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:59:42,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:59:42,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:42,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:59:42,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:59:42,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:42,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:42,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:42,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:59:42,331 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:59:42,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:59:42,332 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:59:42,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:42,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:59:42,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:42,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:59:42,336 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:59:42,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:59:42,337 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:42,338 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:42,339 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:42,340 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:42,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:42,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:42,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:42,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:42,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:59:42,343 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:59:42,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:59:42,345 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:59:42,345 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_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edf451b08ccf28b9358a6fa7c10128ea1b9a8f09b01361f9cd588dc4a31f271a [2023-11-19 03:59:42,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:42,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:42,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:42,658 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:42,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:42,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/combinations/gcd_2+newton_2_2.i [2023-11-19 03:59:46,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:46,304 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:46,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/sv-benchmarks/c/combinations/gcd_2+newton_2_2.i [2023-11-19 03:59:46,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/data/0547cb704/2f46c0f70b2548c7ac6056d15f49d715/FLAG9edf245f4 [2023-11-19 03:59:46,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/data/0547cb704/2f46c0f70b2548c7ac6056d15f49d715 [2023-11-19 03:59:46,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:46,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:46,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:46,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:46,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:46,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30422a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46, skipping insertion in model container [2023-11-19 03:59:46,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:46,573 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/sv-benchmarks/c/combinations/gcd_2+newton_2_2.i[1226,1239] [2023-11-19 03:59:46,606 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/sv-benchmarks/c/combinations/gcd_2+newton_2_2.i[2841,2854] [2023-11-19 03:59:46,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:46,624 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:46,637 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/sv-benchmarks/c/combinations/gcd_2+newton_2_2.i[1226,1239] [2023-11-19 03:59:46,651 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/sv-benchmarks/c/combinations/gcd_2+newton_2_2.i[2841,2854] [2023-11-19 03:59:46,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:46,675 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:46,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46 WrapperNode [2023-11-19 03:59:46,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:46,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:46,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:46,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:46,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,723 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2023-11-19 03:59:46,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:46,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:46,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:46,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:46,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:46,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:46,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:46,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:46,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:46" (1/1) ... [2023-11-19 03:59:46,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:46,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:46,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_008ebdd6-e984-4397-9425-98d59f854822/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:46,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:59:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2023-11-19 03:59:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2023-11-19 03:59:46,882 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-19 03:59:46,882 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-19 03:59:46,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:59:46,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:46,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:46,985 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:46,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:47,385 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:47,500 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:47,501 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:59:47,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:47 BoogieIcfgContainer [2023-11-19 03:59:47,507 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:59:47,508 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:59:47,508 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:59:47,521 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:59:47,521 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:47" (1/1) ... [2023-11-19 03:59:47,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:59:47,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2023-11-19 03:59:47,615 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2023-11-19 03:59:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:59:47,622 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-19 03:59:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-19 03:59:48,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:59:48,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:48,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:48,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:59:48,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:59:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:49,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 31 states and 40 transitions. [2023-11-19 03:59:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2023-11-19 03:59:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:59:49,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:49,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:49,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:59:49,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:00:02,816 WARN L293 SmtUtils]: Spent 11.63s on a formula simplification. DAG size of input: 80 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-19 04:00:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:37,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-19 04:00:39,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-19 04:00:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2023-11-19 04:00:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-19 04:00:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:00:44,610 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:44,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-19 04:00:44,671 INFO L285 TraceCheckSpWp]: Computing forward predicates...