./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm --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 c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:51:54,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:51:54,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 16:51:54,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:51:54,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:51:54,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:51:54,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:51:54,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:51:54,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:51:54,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:51:54,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:51:54,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:51:54,811 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:51:54,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:51:54,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:51:54,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:51:54,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:51:54,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:51:54,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:51:54,812 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:51:54,812 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:51:54,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:51:54,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:51:54,813 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:51:54,813 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:51:54,813 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:51:54,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:51:54,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:51:54,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:51:54,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:51:54,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:51:54,815 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:51:54,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:51:54,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm 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 -> c5787d4099664297951b30a30ca371dd536df07843738ed8698fe723430a974c [2024-11-13 16:51:55,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:51:55,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:51:55,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:51:55,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:51:55,216 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:51:55,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench/fermat1-ll.c Unable to find full path for "g++" [2024-11-13 16:51:57,351 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:51:57,699 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:51:57,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/sv-benchmarks/c/nla-digbench/fermat1-ll.c [2024-11-13 16:51:57,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/data/acb731d05/b4006ee103cf44f0a46c5788f8b78514/FLAGf67c5a2a4 [2024-11-13 16:51:57,739 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/data/acb731d05/b4006ee103cf44f0a46c5788f8b78514 [2024-11-13 16:51:57,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:51:57,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:51:57,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:51:57,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:51:57,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:51:57,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:51:57" (1/1) ... [2024-11-13 16:51:57,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a96a968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:57, skipping insertion in model container [2024-11-13 16:51:57,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:51:57" (1/1) ... [2024-11-13 16:51:57,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:51:57,944 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_e4fa8211-16bd-4776-a514-c5ffefa2ac84/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2024-11-13 16:51:57,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:51:57,988 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:51:57,998 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_e4fa8211-16bd-4776-a514-c5ffefa2ac84/sv-benchmarks/c/nla-digbench/fermat1-ll.c[535,548] [2024-11-13 16:51:58,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:51:58,019 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:51:58,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58 WrapperNode [2024-11-13 16:51:58,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:51:58,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:51:58,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:51:58,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:51:58,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,048 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2024-11-13 16:51:58,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:51:58,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:51:58,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:51:58,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:51:58,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:51:58,066 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:51:58,066 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:51:58,066 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:51:58,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:51:58,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:51:58,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:51:58,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fa8211-16bd-4776-a514-c5ffefa2ac84/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:51:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:51:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:51:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:51:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:51:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:51:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:51:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 16:51:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 16:51:58,195 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:51:58,197 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:51:58,353 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 16:51:58,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:51:58,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:51:58,382 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 16:51:58,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:51:58 BoogieIcfgContainer [2024-11-13 16:51:58,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:51:58,384 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:51:58,384 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:51:58,399 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:51:58,399 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:51:58" (1/1) ... [2024-11-13 16:51:58,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:51:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:51:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2024-11-13 16:51:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2024-11-13 16:51:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 16:51:58,477 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:51:58,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:51:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:51:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:51:58,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:51:58,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2024-11-13 16:51:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-13 16:51:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 16:51:58,702 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:51:58,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:51:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:51:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:51:58,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 16:51:58,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:51:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:52:01,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:52:01,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:01,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2024-11-13 16:52:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2024-11-13 16:52:01,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:52:01,827 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:01,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:52:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2024-11-13 16:52:07,586 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2024-11-13 16:52:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 16:52:07,586 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:07,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:52:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:52:14,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 40 transitions. [2024-11-13 16:52:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2024-11-13 16:52:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 16:52:14,194 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:52:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:52:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:52:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:52:14,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 16:52:14,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:52:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 16:52:44,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:52:50,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:52:52,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:53:01,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:53:01,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 36 states and 52 transitions. [2024-11-13 16:53:01,740 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2024-11-13 16:53:01,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 16:53:01,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:53:01,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:53:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:53:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:53:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:53:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 38 states and 55 transitions. [2024-11-13 16:53:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2024-11-13 16:53:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 16:53:08,528 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:53:08,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:53:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:53:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:53:08,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 16:53:08,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:53:24,608 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:53:41,526 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 41 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 16:53:47,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:53:57,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:54:22,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:54:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 62 transitions. [2024-11-13 16:54:34,368 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 62 transitions. [2024-11-13 16:54:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 16:54:34,369 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:54:34,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:54:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:54:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:54:34,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 16:54:34,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:54:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 16:55:18,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:55:20,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:55:21,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:55:23,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:55:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:55:26,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 44 states and 67 transitions. [2024-11-13 16:55:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2024-11-13 16:55:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 16:55:26,751 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:55:26,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:55:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:55:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:55:26,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 16:55:26,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:55:57,848 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 20 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 16:56:24,030 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification. DAG size of input: 41 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 16:56:31,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:56:42,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:57:09,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:57:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:57:16,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 50 states and 79 transitions. [2024-11-13 16:57:16,493 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2024-11-13 16:57:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 16:57:16,494 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:57:16,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:57:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:57:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 16:57:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:57:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 56 states and 91 transitions. [2024-11-13 16:57:32,267 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 91 transitions. [2024-11-13 16:57:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 16:57:32,269 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:57:32,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:57:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:57:32,338 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-13 16:57:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:57:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 56 states and 90 transitions. [2024-11-13 16:57:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 90 transitions. [2024-11-13 16:57:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 16:57:50,689 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:57:50,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:57:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:57:50,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:57:50,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 16:57:50,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:58:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-13 16:58:19,005 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification. DAG size of input: 46 DAG size of output: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 16:59:06,892 WARN L286 SmtUtils]: Spent 9.78s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 16:59:10,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:59:12,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 16:59:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:59:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 59 states and 97 transitions. [2024-11-13 16:59:21,962 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 97 transitions. [2024-11-13 16:59:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-13 16:59:21,963 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:59:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:59:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 16:59:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:59:22,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 16:59:22,019 INFO L278 TraceCheckSpWp]: Computing forward predicates...