./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/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_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/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_48b63504-176e-48b5-85f6-a01e2b6ac6cb/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 04018145d5ace4c3357fe1e5023a2cdd8af65b0f762a2636eda0df151f06b137 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:21:07,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:21:07,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 04:21:07,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:21:07,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:21:07,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:21:07,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:21:07,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:21:07,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:21:07,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:21:07,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:21:07,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:21:07,131 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:21:07,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:21:07,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:21:07,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:21:07,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:21:07,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:21:07,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:21:07,135 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:21:07,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:21:07,136 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:21:07,136 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:21:07,137 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:21:07,137 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:21:07,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:21:07,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:21:07,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:21:07,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:21:07,140 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:21:07,140 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:21:07,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:21:07,141 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:21:07,141 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_48b63504-176e-48b5-85f6-a01e2b6ac6cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04018145d5ace4c3357fe1e5023a2cdd8af65b0f762a2636eda0df151f06b137 [2023-12-03 04:21:07,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:21:07,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:21:07,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:21:07,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:21:07,360 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:21:07,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c [2023-12-03 04:21:10,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:21:10,268 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:21:10,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c [2023-12-03 04:21:10,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/data/dc4730f00/9bfac7dd03924bb2acff36310bade558/FLAGae16b3f54 [2023-12-03 04:21:10,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/data/dc4730f00/9bfac7dd03924bb2acff36310bade558 [2023-12-03 04:21:10,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:21:10,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:21:10,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:21:10,291 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:21:10,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:21:10,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fbbb249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10, skipping insertion in model container [2023-12-03 04:21:10,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:21:10,442 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_48b63504-176e-48b5-85f6-a01e2b6ac6cb/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c[524,537] [2023-12-03 04:21:10,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:21:10,466 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:21:10,479 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_48b63504-176e-48b5-85f6-a01e2b6ac6cb/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound100.c[524,537] [2023-12-03 04:21:10,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:21:10,499 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:21:10,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10 WrapperNode [2023-12-03 04:21:10,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:21:10,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:21:10,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:21:10,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:21:10,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,529 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-12-03 04:21:10,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:21:10,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:21:10,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:21:10,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:21:10,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,543 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:21:10,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:21:10,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:21:10,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:21:10,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:21:10,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:21:10,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:21:10,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b63504-176e-48b5-85f6-a01e2b6ac6cb/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:21:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:21:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 04:21:10,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 04:21:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:21:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:21:10,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:21:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 04:21:10,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 04:21:10,691 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:21:10,694 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:21:10,817 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:21:10,865 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:21:10,865 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 04:21:10,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:21:10 BoogieIcfgContainer [2023-12-03 04:21:10,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:21:10,869 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:21:10,869 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:21:10,885 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:21:10,885 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:21:10" (1/1) ... [2023-12-03 04:21:10,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:21:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:21:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-03 04:21:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-03 04:21:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 04:21:10,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:21:10,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:21:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:21:11,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 04:21:11,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:21:11,377 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 04:21:15,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:21:19,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:21:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:21:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 33 transitions. [2023-12-03 04:21:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-12-03 04:21:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 04:21:19,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:21:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:21:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:21:19,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 04:21:19,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:21:20,335 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 04:21:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:21:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 29 states and 39 transitions. [2023-12-03 04:21:24,026 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-12-03 04:21:24,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 04:21:24,027 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:21:24,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:21:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:21:24,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 04:21:24,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:21:35,131 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 04:21:44,359 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 04:22:06,203 WARN L293 SmtUtils]: Spent 20.10s on a formula simplification. DAG size of input: 37 DAG size of output: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:22:17,912 WARN L293 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:22:44,652 WARN L293 SmtUtils]: Spent 9.52s on a formula simplification. DAG size of input: 55 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:23:04,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:23:07,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:23:17,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:23:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:23:17,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 52 transitions. [2023-12-03 04:23:17,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2023-12-03 04:23:17,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 04:23:17,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:23:17,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:23:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:23:17,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 04:23:17,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:23:31,287 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 04:23:59,255 WARN L293 SmtUtils]: Spent 14.38s on a formula simplification. DAG size of input: 57 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:25:08,549 WARN L293 SmtUtils]: Spent 22.31s on a formula simplification. DAG size of input: 70 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:26:32,115 WARN L293 SmtUtils]: Spent 1.34m on a formula simplification. DAG size of input: 71 DAG size of output: 65 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:27:31,254 WARN L293 SmtUtils]: Spent 37.62s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:27:33,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:28:01,500 WARN L293 SmtUtils]: Spent 10.06s on a formula simplification. DAG size of input: 85 DAG size of output: 79 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:28:20,856 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:28:22,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:28:23,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:28:33,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:28:34,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:28:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 62 transitions. [2023-12-03 04:28:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 62 transitions. [2023-12-03 04:28:34,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 04:28:34,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:28:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:28:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:28:34,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 04:28:34,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:29:19,403 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 04:30:34,342 WARN L293 SmtUtils]: Spent 1.15m on a formula simplification. DAG size of input: 96 DAG size of output: 84 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:31:12,251 WARN L293 SmtUtils]: Spent 30.75s on a formula simplification that was a NOOP. DAG size: 85 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:31:50,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:31:51,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:31:53,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-03 04:31:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:31:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 42 states and 68 transitions. [2023-12-03 04:31:53,812 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2023-12-03 04:31:53,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 04:31:53,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:31:53,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:31:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:31:54,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-03 04:31:54,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:33:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-03 04:35:14,881 WARN L293 SmtUtils]: Spent 2.03m on a formula simplification. DAG size of input: 129 DAG size of output: 112 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 04:36:20,843 WARN L293 SmtUtils]: Spent 1.02m on a formula simplification that was a NOOP. DAG size: 113 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)