./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.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_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/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_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/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_31938674-6fca-4946-a431-aa4a8e8f1513/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 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:00:58,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:00:58,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:00:58,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:00:58,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:00:58,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:00:58,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:00:58,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:00:58,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:00:58,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:00:58,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:00:58,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:00:58,998 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:00:58,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:00:58,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:00:58,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:00:59,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:00:59,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:00:59,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:00:59,013 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:00:59,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:00:59,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:00:59,014 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:00:59,015 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:00:59,015 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:00:59,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:00:59,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:00:59,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:00:59,017 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:00:59,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:00:59,018 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:00:59,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:00:59,018 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:00:59,019 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_31938674-6fca-4946-a431-aa4a8e8f1513/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 [2023-12-02 21:00:59,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:00:59,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:00:59,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:00:59,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:00:59,258 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:00:59,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2023-12-02 21:01:01,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:01:02,101 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:01:02,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2023-12-02 21:01:02,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/data/1655b2158/540ef205dfcc4707824105ce3fc49f03/FLAG4a662fe1d [2023-12-02 21:01:02,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/data/1655b2158/540ef205dfcc4707824105ce3fc49f03 [2023-12-02 21:01:02,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:01:02,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:01:02,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:01:02,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:01:02,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:01:02,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1672c288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02, skipping insertion in model container [2023-12-02 21:01:02,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:01:02,279 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_31938674-6fca-4946-a431-aa4a8e8f1513/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c[535,548] [2023-12-02 21:01:02,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:01:02,309 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:01:02,319 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_31938674-6fca-4946-a431-aa4a8e8f1513/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c[535,548] [2023-12-02 21:01:02,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:01:02,342 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:01:02,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02 WrapperNode [2023-12-02 21:01:02,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:01:02,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:01:02,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:01:02,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:01:02,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,373 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-12-02 21:01:02,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:01:02,374 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:01:02,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:01:02,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:01:02,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:01:02,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:01:02,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:01:02,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:01:02,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:01:02,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:01:02,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:01:02,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31938674-6fca-4946-a431-aa4a8e8f1513/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:01:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:01:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 21:01:02,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 21:01:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:01:02,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:01:02,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:01:02,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:01:02,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:01:02,531 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:01:02,533 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:01:02,703 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:01:02,732 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:01:02,732 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-02 21:01:02,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:02 BoogieIcfgContainer [2023-12-02 21:01:02,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:01:02,735 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:01:02,735 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:01:02,742 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:01:02,743 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:01:02" (1/1) ... [2023-12-02 21:01:02,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:01:02,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:02,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2023-12-02 21:01:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2023-12-02 21:01:02,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 21:01:02,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:02,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:02,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 21:01:02,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 21:01:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:03,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 31 states and 46 transitions. [2023-12-02 21:01:03,922 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 46 transitions. [2023-12-02 21:01:03,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 21:01:03,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:03,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:03,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:01:03,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:04,129 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 21:01:04,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 35 states and 54 transitions. [2023-12-02 21:01:04,507 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2023-12-02 21:01:04,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 21:01:04,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:04,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:01:04,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 21:01:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:04,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 55 transitions. [2023-12-02 21:01:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-12-02 21:01:04,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 21:01:04,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:04,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:04,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:01:04,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:04,721 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-02 21:01:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 40 states and 58 transitions. [2023-12-02 21:01:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-12-02 21:01:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:01:04,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:04,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:04,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:01:04,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 21:01:05,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 46 states and 68 transitions. [2023-12-02 21:01:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 68 transitions. [2023-12-02 21:01:05,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:01:05,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:05,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:05,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 21:01:05,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 21:01:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 53 states and 83 transitions. [2023-12-02 21:01:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 83 transitions. [2023-12-02 21:01:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 21:01:10,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:10,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:01:10,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 21:01:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 56 states and 85 transitions. [2023-12-02 21:01:11,059 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 85 transitions. [2023-12-02 21:01:11,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 21:01:11,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:11,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:11,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:01:11,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:01:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 21:01:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:01:11,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 59 states and 90 transitions. [2023-12-02 21:01:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 90 transitions. [2023-12-02 21:01:11,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 21:01:11,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:01:11,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:01:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:01:11,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 21:01:11,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:07,489 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 21:05:05,418 WARN L293 SmtUtils]: Spent 9.83s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:05:16,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:05:26,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:05:36,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:05:56,820 WARN L293 SmtUtils]: Spent 20.08s on a formula simplification. DAG size of input: 46 DAG size of output: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:06:27,394 WARN L293 SmtUtils]: Spent 10.02s 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) [2023-12-02 21:08:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 68 states and 109 transitions. [2023-12-02 21:08:10,423 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 109 transitions. [2023-12-02 21:08:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:08:10,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:10,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:10,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:08:10,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 54 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-02 21:08:52,533 WARN L293 SmtUtils]: Spent 20.35s on a formula simplification. DAG size of input: 36 DAG size of output: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:09:47,874 WARN L293 SmtUtils]: Spent 24.62s on a formula simplification. DAG size of input: 38 DAG size of output: 35 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:24,990 WARN L293 SmtUtils]: Spent 20.12s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:35,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:11:45,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:11:55,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 71 states and 113 transitions. [2023-12-02 21:11:55,827 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 113 transitions. [2023-12-02 21:11:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 21:11:55,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:55,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:11:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:55,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 21:11:55,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-12-02 21:12:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:20,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 71 states and 111 transitions. [2023-12-02 21:12:20,547 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 111 transitions. [2023-12-02 21:12:20,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 21:12:20,548 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:20,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:12:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:20,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:12:20,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:20,847 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 22 proven. 12 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-12-02 21:13:29,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:13:40,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:13:40,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:40,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 80 states and 129 transitions. [2023-12-02 21:13:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 129 transitions. [2023-12-02 21:13:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 21:13:40,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:40,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:13:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:40,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 21:13:40,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 45 proven. 36 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-12-02 21:14:42,215 WARN L293 SmtUtils]: Spent 10.04s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:04,012 WARN L293 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:49,875 WARN L293 SmtUtils]: Spent 12.82s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:16:06,847 WARN L293 SmtUtils]: Spent 14.08s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)