./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b --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 c16561338eb70030ddc560fe6b7af6d1b48b7a566766a02092344cb5475a4c1a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 06:11:07,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 06:11:07,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 06:11:07,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 06:11:07,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 06:11:07,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 06:11:07,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 06:11:07,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 06:11:07,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 06:11:07,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 06:11:07,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 06:11:07,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 06:11:07,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 06:11:07,898 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 06:11:07,898 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 06:11:07,898 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 06:11:07,898 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 06:11:07,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 06:11:07,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:11:07,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 06:11:07,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 06:11:07,899 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 06:11:07,899 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 06:11:07,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 06:11:07,899 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_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b 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 -> c16561338eb70030ddc560fe6b7af6d1b48b7a566766a02092344cb5475a4c1a [2024-12-06 06:11:08,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 06:11:08,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 06:11:08,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 06:11:08,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 06:11:08,111 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 06:11:08,112 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c [2024-12-06 06:11:10,786 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/data/29981b36b/e850bbc344f24cb88fe86acb7f5ed2d0/FLAGcab651291 [2024-12-06 06:11:10,996 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 06:11:10,997 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c [2024-12-06 06:11:11,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/data/29981b36b/e850bbc344f24cb88fe86acb7f5ed2d0/FLAGcab651291 [2024-12-06 06:11:11,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/data/29981b36b/e850bbc344f24cb88fe86acb7f5ed2d0 [2024-12-06 06:11:11,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 06:11:11,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 06:11:11,380 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 06:11:11,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 06:11:11,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 06:11:11,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440f1847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11, skipping insertion in model container [2024-12-06 06:11:11,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 06:11:11,500 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_738f9dce-5aef-4d2c-9f50-5823331ef50a/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c[524,537] [2024-12-06 06:11:11,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:11:11,522 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 06:11:11,531 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_738f9dce-5aef-4d2c-9f50-5823331ef50a/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound20.c[524,537] [2024-12-06 06:11:11,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:11:11,548 INFO L204 MainTranslator]: Completed translation [2024-12-06 06:11:11,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11 WrapperNode [2024-12-06 06:11:11,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 06:11:11,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 06:11:11,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 06:11:11,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 06:11:11,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,570 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2024-12-06 06:11:11,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 06:11:11,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 06:11:11,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 06:11:11,570 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 06:11:11,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,582 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 06:11:11,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 06:11:11,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 06:11:11,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 06:11:11,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:11:11,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 06:11:11,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 06:11:11,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738f9dce-5aef-4d2c-9f50-5823331ef50a/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 06:11:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 06:11:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 06:11:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 06:11:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 06:11:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 06:11:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 06:11:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 06:11:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 06:11:11,678 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 06:11:11,679 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 06:11:11,793 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 06:11:11,793 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 06:11:11,825 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 06:11:11,826 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 06:11:11,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:11:11 BoogieIcfgContainer [2024-12-06 06:11:11,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 06:11:11,827 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 06:11:11,827 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 06:11:11,834 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 06:11:11,835 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:11:11" (1/1) ... [2024-12-06 06:11:11,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 06:11:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:11:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-06 06:11:11,880 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-06 06:11:11,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 06:11:11,883 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:11:11,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:11:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:11:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 06:11:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:11:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2024-12-06 06:11:12,028 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-06 06:11:12,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 06:11:12,028 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:11:12,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:11:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:11:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:11:12,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 06:11:12,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:11:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 06:11:12,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:11:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-12-06 06:11:12,904 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-12-06 06:11:12,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 06:11:12,906 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:11:12,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:11:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:11:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 06:11:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:11:13,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2024-12-06 06:11:13,349 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2024-12-06 06:11:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 06:11:13,350 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:11:13,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:11:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:11:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 06:11:18,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:11:21,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:11:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:11:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 36 transitions. [2024-12-06 06:11:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-12-06 06:11:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 06:11:21,455 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:11:21,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:11:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:11:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:11:21,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 06:11:21,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:11:34,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 06:11:57,437 WARN L286 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 31 DAG size of output: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:12:12,658 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 31 DAG size of output: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:12:28,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:13:14,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:13:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:13:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 53 transitions. [2024-12-06 06:13:14,485 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2024-12-06 06:13:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 06:13:14,486 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:13:14,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:13:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:13:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 06:13:38,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:13:38,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 38 states and 62 transitions. [2024-12-06 06:13:38,833 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2024-12-06 06:13:38,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 06:13:38,833 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:13:38,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:13:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:13:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 06:13:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:13:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 67 transitions. [2024-12-06 06:13:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2024-12-06 06:13:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 06:13:49,414 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:13:49,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:13:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:13:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 06:14:09,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:14:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 44 states and 80 transitions. [2024-12-06 06:14:09,983 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 80 transitions. [2024-12-06 06:14:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 06:14:09,984 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:14:09,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:14:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:14:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 06:14:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:14:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 47 states and 89 transitions. [2024-12-06 06:14:19,695 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 89 transitions. [2024-12-06 06:14:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 06:14:19,696 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:14:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:14:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:14:19,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 06:14:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:14:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 49 states and 94 transitions. [2024-12-06 06:14:39,441 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2024-12-06 06:14:39,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 06:14:39,441 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:14:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:14:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:14:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:14:39,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 06:14:39,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:15:09,816 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:15:10,370 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 06:15:26,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.54s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:15:32,569 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 53 DAG size of output: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:16:01,774 WARN L286 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 57 DAG size of output: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:17:31,813 WARN L286 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:17:33,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:18:31,015 WARN L286 SmtUtils]: Spent 23.24s on a formula simplification. DAG size of input: 68 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:18:53,898 WARN L286 SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 69 DAG size of output: 56 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:19:03,245 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:19:05,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:19:23,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.76s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:19:26,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:19:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:19:26,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 56 states and 115 transitions. [2024-12-06 06:19:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 115 transitions. [2024-12-06 06:19:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-06 06:19:26,283 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:19:26,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:19:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:19:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-06 06:20:00,587 WARN L286 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:20:50,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:20:50,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:20:50,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 58 states and 117 transitions. [2024-12-06 06:20:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 117 transitions. [2024-12-06 06:20:50,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-06 06:20:50,650 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:20:50,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:20:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:20:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-06 06:21:18,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-06 06:21:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:21:19,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 62 states and 133 transitions. [2024-12-06 06:21:19,542 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 133 transitions. [2024-12-06 06:21:19,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-06 06:21:19,543 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:21:19,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:21:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 06:21:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:21:19,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-06 06:21:19,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 06:23:04,114 WARN L286 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:23:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-06 06:23:55,963 WARN L286 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 83 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:25:28,109 WARN L286 SmtUtils]: Spent 16.88s on a formula simplification. DAG size of input: 84 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:25:44,864 WARN L286 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 83 DAG size of output: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:26:19,888 WARN L286 SmtUtils]: Spent 14.46s on a formula simplification. DAG size of input: 84 DAG size of output: 33 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-06 06:26:33,933 WARN L286 SmtUtils]: Spent 10.19s on a formula simplification. DAG size of input: 81 DAG size of output: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)