./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3 --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 8571897e57404ad6e85df2c29745d5b56fa4d168673d3bc7c670c79b03a6c106 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:45:51,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:45:51,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:45:51,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:45:51,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:45:51,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:45:51,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:45:51,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:45:51,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:45:51,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:45:51,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:45:51,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:45:51,854 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:45:51,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:45:51,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:45:51,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:45:51,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:45:51,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:45:51,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:45:51,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:45:51,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:45:51,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:45:51,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:45:51,856 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:45:51,856 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:45:51,857 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:45:51,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:45:51,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:45:51,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:45:51,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:45:51,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:45:51,858 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:45:51,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:45:51,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3 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 -> 8571897e57404ad6e85df2c29745d5b56fa4d168673d3bc7c670c79b03a6c106 [2024-11-25 03:45:52,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:45:52,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:45:52,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:45:52,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:45:52,206 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:45:52,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c [2024-11-25 03:45:55,500 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/data/bafeabdc2/145543bae141467ab1894e9117a74932/FLAG5ae56361f [2024-11-25 03:45:55,912 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:45:55,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c [2024-11-25 03:45:55,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/data/bafeabdc2/145543bae141467ab1894e9117a74932/FLAG5ae56361f [2024-11-25 03:45:56,122 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/data/bafeabdc2/145543bae141467ab1894e9117a74932 [2024-11-25 03:45:56,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:45:56,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:45:56,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:45:56,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:45:56,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:45:56,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0a6917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56, skipping insertion in model container [2024-11-25 03:45:56,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:45:56,323 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c[1067,1080] [2024-11-25 03:45:56,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:45:56,385 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:45:56,404 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/sv-benchmarks/c/recursified_nla-digbench/recursified_hard2.c[1067,1080] [2024-11-25 03:45:56,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:45:56,455 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:45:56,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56 WrapperNode [2024-11-25 03:45:56,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:45:56,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:45:56,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:45:56,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:45:56,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,512 INFO L138 Inliner]: procedures = 17, calls = 90, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 78 [2024-11-25 03:45:56,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:45:56,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:45:56,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:45:56,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:45:56,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,548 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,565 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:45:56,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:45:56,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:45:56,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:45:56,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:56" (1/1) ... [2024-11-25 03:45:56,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:45:56,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:45:56,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:45:56,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_681ebdc6-a14d-4f34-933a-839e4f68f7ee/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:45:56,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:45:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_50_0 [2024-11-25 03:45:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_50_0 [2024-11-25 03:45:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:45:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 03:45:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 03:45:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_37_0 [2024-11-25 03:45:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_37_0 [2024-11-25 03:45:56,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:45:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:45:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 03:45:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 03:45:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 03:45:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:45:56,797 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:45:56,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:45:57,139 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-25 03:45:57,139 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:45:57,208 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:45:57,208 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 03:45:57,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:45:57 BoogieIcfgContainer [2024-11-25 03:45:57,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:45:57,210 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:45:57,210 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:45:57,226 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:45:57,226 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:45:57" (1/1) ... [2024-11-25 03:45:57,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:45:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:45:57,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2024-11-25 03:45:57,302 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-11-25 03:45:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 03:45:57,307 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:45:57,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:45:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:45:58,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:45:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:45:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 42 states and 58 transitions. [2024-11-25 03:45:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-25 03:45:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:45:58,578 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:45:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:45:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:46:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:46:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:46:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 47 states and 64 transitions. [2024-11-25 03:46:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 64 transitions. [2024-11-25 03:46:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-25 03:46:01,328 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:46:01,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:46:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:46:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:46:01,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-25 03:46:01,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:46:01,775 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2024-11-25 03:46:01,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 81 [2024-11-25 03:46:01,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:01,961 INFO L349 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2024-11-25 03:46:01,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 54 treesize of output 81 [2024-11-25 03:46:02,068 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-11-25 03:46:02,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 817 treesize of output 777 [2024-11-25 03:46:02,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 03:46:02,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 03:46:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-25 03:46:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:46:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 58 states and 97 transitions. [2024-11-25 03:46:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 97 transitions. [2024-11-25 03:46:08,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-25 03:46:08,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:46:08,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:46:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:46:09,851 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 03:46:14,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:46:14,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 68 states and 119 transitions. [2024-11-25 03:46:14,638 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 119 transitions. [2024-11-25 03:46:14,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-25 03:46:14,642 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:46:14,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:46:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:46:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:46:14,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-25 03:46:14,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:46:14,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:14,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 325 treesize of output 106 [2024-11-25 03:46:14,985 INFO L159 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2024-11-25 03:46:14,988 INFO L164 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 196 [2024-11-25 03:46:15,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2024-11-25 03:46:15,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-25 03:46:15,097 INFO L349 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2024-11-25 03:46:15,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 74 treesize of output 64 [2024-11-25 03:46:15,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-25 03:46:15,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2024-11-25 03:46:15,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-25 03:46:15,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2024-11-25 03:46:15,161 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-25 03:46:15,165 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-25 03:46:16,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2024-11-25 03:46:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 03:46:23,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:46:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 77 states and 148 transitions. [2024-11-25 03:46:23,436 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 148 transitions. [2024-11-25 03:46:23,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-25 03:46:23,438 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:46:23,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:46:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:46:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-25 03:46:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:46:34,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 87 states and 173 transitions. [2024-11-25 03:46:34,358 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 173 transitions. [2024-11-25 03:46:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-25 03:46:34,359 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:46:34,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:46:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-25 03:46:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:46:34,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-25 03:46:34,591 INFO L279 TraceCheckSpWp]: Computing forward predicates...