./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.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_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/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_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/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_3c3a4de1-084a-409d-b9e3-7277876b7067/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 fe22a831ab045bcc67da4505e3ba36b6f549cf1239b349bc9f8fd22458d7fbac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:02:46,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:02:46,855 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:02:46,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:02:46,860 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:02:46,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:02:46,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:02:46,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:02:46,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:02:46,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:02:46,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:02:46,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:02:46,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:02:46,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:02:46,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:02:46,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:02:46,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:02:46,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:02:46,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:02:46,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:02:46,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:02:46,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:02:46,894 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:02:46,894 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:02:46,894 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:02:46,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:02:46,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:02:46,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:02:46,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:02:46,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:02:46,897 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:02:46,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:02:46,898 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:02:46,898 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_3c3a4de1-084a-409d-b9e3-7277876b7067/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe22a831ab045bcc67da4505e3ba36b6f549cf1239b349bc9f8fd22458d7fbac [2023-12-02 21:02:47,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:02:47,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:02:47,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:02:47,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:02:47,152 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:02:47,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c [2023-12-02 21:02:49,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:02:50,083 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:02:50,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c [2023-12-02 21:02:50,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/data/83f02daaf/fc8063d905774f88b6ca9dd980785134/FLAGced6fd879 [2023-12-02 21:02:50,103 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/data/83f02daaf/fc8063d905774f88b6ca9dd980785134 [2023-12-02 21:02:50,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:02:50,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:02:50,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:02:50,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:02:50,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:02:50,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e16050d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50, skipping insertion in model container [2023-12-02 21:02:50,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,134 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:02:50,261 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_3c3a4de1-084a-409d-b9e3-7277876b7067/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c[1175,1188] [2023-12-02 21:02:50,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:02:50,284 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:02:50,294 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_3c3a4de1-084a-409d-b9e3-7277876b7067/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_unwindbound5.c[1175,1188] [2023-12-02 21:02:50,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:02:50,312 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:02:50,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50 WrapperNode [2023-12-02 21:02:50,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:02:50,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:02:50,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:02:50,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:02:50,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,342 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2023-12-02 21:02:50,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:02:50,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:02:50,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:02:50,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:02:50,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,356 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:02:50,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:02:50,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:02:50,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:02:50,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:02:50,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:02:50,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:02:50,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c3a4de1-084a-409d-b9e3-7277876b7067/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:02:50,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:02:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:02:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:02:50,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:02:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:02:50,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:02:50,500 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:02:50,502 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:02:50,620 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:02:50,710 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:02:50,710 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:02:50,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:50 BoogieIcfgContainer [2023-12-02 21:02:50,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:02:50,713 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:02:50,714 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:02:50,722 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:02:50,722 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:50" (1/1) ... [2023-12-02 21:02:50,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:02:50,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-02 21:02:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-02 21:02:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:02:50,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:50,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:50,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:02:50,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:02:50,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:50,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-02 21:02:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 21:02:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:02:50,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:50,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:02:51,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:02:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-12-02 21:02:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-12-02 21:02:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:02:51,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:51,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:02:51,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:02:51,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2023-12-02 21:02:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-12-02 21:02:51,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:02:51,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:51,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:02:51,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:51,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:02:51,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 25 states and 39 transitions. [2023-12-02 21:02:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2023-12-02 21:02:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:02:51,922 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:51,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:02:51,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:02:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:56,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 54 transitions. [2023-12-02 21:02:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2023-12-02 21:02:56,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:02:56,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:56,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:56,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:02:56,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:02:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:02:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:02:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 39 states and 80 transitions. [2023-12-02 21:02:57,302 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 80 transitions. [2023-12-02 21:02:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:02:57,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:02:57,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:02:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:02:57,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 21:02:57,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 41 states and 83 transitions. [2023-12-02 21:03:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 83 transitions. [2023-12-02 21:03:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 21:03:02,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:02,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 21:03:02,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:23,637 WARN L293 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:03:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:03:40,310 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:03:40,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:40,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 43 states and 91 transitions. [2023-12-02 21:03:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 91 transitions. [2023-12-02 21:03:40,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:03:40,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:40,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:40,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:03:40,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 47 states and 108 transitions. [2023-12-02 21:03:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 108 transitions. [2023-12-02 21:03:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:03:42,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:42,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:42,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 21:03:42,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:03:58,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:58,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 51 states and 125 transitions. [2023-12-02 21:03:58,927 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 125 transitions. [2023-12-02 21:03:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:03:58,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:58,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:59,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 21:03:59,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:09,839 WARN L293 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 10 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:04:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:04:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 53 states and 128 transitions. [2023-12-02 21:04:12,245 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 128 transitions. [2023-12-02 21:04:12,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:04:12,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:12,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:04:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:12,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:04:12,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:12,304 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:04:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 57 states and 144 transitions. [2023-12-02 21:04:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 144 transitions. [2023-12-02 21:04:13,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:04:13,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:13,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:04:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:13,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 21:04:13,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:04:27,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:04:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 59 states and 147 transitions. [2023-12-02 21:04:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 147 transitions. [2023-12-02 21:04:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 21:04:27,678 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:04:27,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:04:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:04:27,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 21:04:27,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:04:50,864 WARN L293 SmtUtils]: Spent 10.45s 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) [2023-12-02 21:04:51,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 21:05:14,085 WARN L293 SmtUtils]: Spent 10.48s on a formula simplification that was a NOOP. DAG size: 58 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:05:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 61 states and 158 transitions. [2023-12-02 21:05:16,100 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 158 transitions. [2023-12-02 21:05:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:05:16,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:16,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:16,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-02 21:05:16,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 21:05:58,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.74s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:06:01,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:07,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 65 states and 177 transitions. [2023-12-02 21:06:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 177 transitions. [2023-12-02 21:06:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:06:07,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:07,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:07,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:06:07,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:38,477 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:06:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 21:06:45,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 67 states and 180 transitions. [2023-12-02 21:06:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 180 transitions. [2023-12-02 21:06:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:06:45,330 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:45,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:45,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:06:45,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:06:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:51,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 75 states and 225 transitions. [2023-12-02 21:06:51,738 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 225 transitions. [2023-12-02 21:06:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:06:51,739 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:51,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:52,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:06:52,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:10,356 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification. DAG size of input: 10 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:07:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 21:07:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:25,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 77 states and 228 transitions. [2023-12-02 21:07:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 228 transitions. [2023-12-02 21:07:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:07:25,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:25,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:25,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:07:25,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:25,146 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:07:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:26,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 77 states and 227 transitions. [2023-12-02 21:07:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 227 transitions. [2023-12-02 21:07:26,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:07:26,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:26,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:26,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:07:26,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:39,160 WARN L293 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:07:52,046 WARN L293 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 21 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:08:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 21:08:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:07,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 80 states and 231 transitions. [2023-12-02 21:08:07,997 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 231 transitions. [2023-12-02 21:08:07,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:08:07,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:07,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:08,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:08:08,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:08:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 80 states and 230 transitions. [2023-12-02 21:08:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 230 transitions. [2023-12-02 21:08:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 21:08:09,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:09,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 21:08:09,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:38,787 WARN L293 SmtUtils]: Spent 11.32s on a formula simplification that was a NOOP. DAG size: 116 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:08:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 21:09:07,409 WARN L293 SmtUtils]: Spent 11.30s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:09:14,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 82 states and 244 transitions. [2023-12-02 21:09:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 244 transitions. [2023-12-02 21:09:14,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:09:14,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:14,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:09:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:09:15,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 21:09:15,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:26,907 WARN L293 SmtUtils]: Spent 7.95s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:10:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 21:11:34,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.86s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-02 21:11:44,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.26s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:54,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:03,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.72s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:03,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 86 states and 267 transitions. [2023-12-02 21:12:03,797 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 267 transitions. [2023-12-02 21:12:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:12:03,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:12:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:04,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 21:12:04,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:49,368 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:12:59,019 WARN L293 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:13:13,997 WARN L293 SmtUtils]: Spent 6.87s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:13:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 14 proven. 39 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 21:14:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 88 states and 270 transitions. [2023-12-02 21:14:06,825 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 270 transitions. [2023-12-02 21:14:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:14:06,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:06,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:14:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:07,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 21:14:07,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:49,662 WARN L293 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:15:14,217 WARN L293 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:15:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 41 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 21:16:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 91 states and 274 transitions. [2023-12-02 21:16:02,618 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 274 transitions. [2023-12-02 21:16:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:16:02,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:02,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:04,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 21:16:04,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:04,459 WARN L293 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 12 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:17:16,486 WARN L293 SmtUtils]: Spent 8.55s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 21:17:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 41 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 21:17:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 93 states and 277 transitions. [2023-12-02 21:17:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 277 transitions. [2023-12-02 21:17:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:17:51,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:17:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:52,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:17:52,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:52,934 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.