./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9 --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 cd2a63b33e7bbe230c7b5ef9bb577263b79c304327f57b571a4977a8b534c93c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:29:52,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:29:52,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 02:29:52,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:29:52,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:29:52,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:29:52,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:29:52,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:29:52,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:29:52,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:29:52,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:29:52,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:29:52,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 02:29:52,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:29:52,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 02:29:52,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:29:52,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:29:52,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:29:52,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:29:52,417 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 02:29:52,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:29:52,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:29:52,418 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:29:52,419 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:29:52,419 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:29:52,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:29:52,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:29:52,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:29:52,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:29:52,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:29:52,422 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:29:52,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:29:52,423 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:29:52,423 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_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd2a63b33e7bbe230c7b5ef9bb577263b79c304327f57b571a4977a8b534c93c [2023-12-03 02:29:52,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:29:52,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:29:52,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:29:52,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:29:52,678 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:29:52,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c [2023-12-03 02:29:55,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:29:55,570 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:29:55,570 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c [2023-12-03 02:29:55,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/data/a949a2263/955c493705014fb995f30b4579e6bb40/FLAG51ebd1aff [2023-12-03 02:29:55,589 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/data/a949a2263/955c493705014fb995f30b4579e6bb40 [2023-12-03 02:29:55,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:29:55,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:29:55,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:29:55,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:29:55,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:29:55,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a08cdd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55, skipping insertion in model container [2023-12-03 02:29:55,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,616 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:29:55,740 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_130c1646-9092-42db-8903-eb16770e6f44/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c[524,537] [2023-12-03 02:29:55,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:29:55,766 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:29:55,776 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_130c1646-9092-42db-8903-eb16770e6f44/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound20.c[524,537] [2023-12-03 02:29:55,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:29:55,798 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:29:55,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55 WrapperNode [2023-12-03 02:29:55,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:29:55,799 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:29:55,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:29:55,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:29:55,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,825 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-12-03 02:29:55,826 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:29:55,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:29:55,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:29:55,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:29:55,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:29:55,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:29:55,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:29:55,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:29:55,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:29:55" (1/1) ... [2023-12-03 02:29:55,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:29:55,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:29:55,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:29:55,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_130c1646-9092-42db-8903-eb16770e6f44/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:29:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:29:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 02:29:55,943 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 02:29:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:29:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:29:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:29:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 02:29:55,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 02:29:56,001 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:29:56,003 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:29:56,129 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:29:56,164 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:29:56,165 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 02:29:56,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:29:56 BoogieIcfgContainer [2023-12-03 02:29:56,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:29:56,167 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:29:56,167 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:29:56,176 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:29:56,176 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:29:56" (1/1) ... [2023-12-03 02:29:56,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:29:56,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:29:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-03 02:29:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-03 02:29:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 02:29:56,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:29:56,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:29:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:29:56,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 02:29:56,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:29:56,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-03 02:29:58,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:29:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:29:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 33 transitions. [2023-12-03 02:29:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-12-03 02:29:58,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:29:58,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:29:58,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:29:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:29:58,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 02:29:58,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:30:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-03 02:30:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:03,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 39 transitions. [2023-12-03 02:30:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-12-03 02:30:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:30:03,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:30:03,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:30:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:30:03,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:30:03,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:30:14,160 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-03 02:30:42,169 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:30:44,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:30:50,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:30:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:30:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 52 transitions. [2023-12-03 02:30:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2023-12-03 02:30:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 02:30:51,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:30:51,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:30:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:30:51,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 02:30:51,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:31:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-03 02:32:07,347 WARN L293 SmtUtils]: Spent 16.64s on a formula simplification. DAG size of input: 70 DAG size of output: 58 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:32:21,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:33:10,291 WARN L293 SmtUtils]: Spent 15.46s on a formula simplification. DAG size of input: 91 DAG size of output: 86 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:33:26,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:33:29,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:33:29,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:33:29,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 62 transitions. [2023-12-03 02:33:29,568 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2023-12-03 02:33:29,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 02:33:29,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:33:29,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:33:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:33:29,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 02:33:29,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:34:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-03 02:34:32,845 WARN L293 SmtUtils]: Spent 21.19s on a formula simplification. DAG size of input: 92 DAG size of output: 73 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:35:53,103 WARN L293 SmtUtils]: Spent 47.46s on a formula simplification. DAG size of input: 127 DAG size of output: 104 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:36:19,670 WARN L293 SmtUtils]: Spent 11.71s on a formula simplification. DAG size of input: 128 DAG size of output: 105 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:37:07,521 WARN L293 SmtUtils]: Spent 16.57s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:37:26,665 WARN L293 SmtUtils]: Spent 6.58s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:37:29,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:37:31,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:37:34,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:37:35,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:37:37,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:37:38,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:37:38,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 42 states and 68 transitions. [2023-12-03 02:37:38,310 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2023-12-03 02:37:38,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 02:37:38,312 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:37:38,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:37:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:37:38,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-03 02:37:38,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:37:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 11 proven. 35 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-03 02:38:20,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:38:29,258 WARN L293 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 153 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:39:16,477 WARN L293 SmtUtils]: Spent 15.26s on a formula simplification. DAG size of input: 155 DAG size of output: 105 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:39:58,363 WARN L293 SmtUtils]: Spent 14.56s on a formula simplification that was a NOOP. DAG size: 106 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:40:29,153 WARN L293 SmtUtils]: Spent 15.61s on a formula simplification. DAG size of input: 136 DAG size of output: 91 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:40:46,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:41:10,604 WARN L293 SmtUtils]: Spent 14.84s on a formula simplification. DAG size of input: 173 DAG size of output: 118 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:41:25,760 WARN L293 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:41:27,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 02:41:28,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:41:28,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 54 states and 91 transitions. [2023-12-03 02:41:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 91 transitions. [2023-12-03 02:41:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 02:41:28,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:41:28,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:41:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:41:29,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 52 conjunts are in the unsatisfiable core [2023-12-03 02:41:29,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:42:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 26 proven. 42 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-03 02:42:57,983 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification. DAG size of input: 140 DAG size of output: 100 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:44:15,886 WARN L293 SmtUtils]: Spent 19.66s on a formula simplification. DAG size of input: 183 DAG size of output: 131 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:44:32,536 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 132 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 02:44:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:44:33,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 71 states and 125 transitions. [2023-12-03 02:44:33,481 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 125 transitions. [2023-12-03 02:44:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 02:44:33,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:44:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:44:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:44:34,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-03 02:44:34,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:45:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 32 proven. 64 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.