./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0234-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/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_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0234-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3248e88e6fd49fdcf0a9f78f1aa9e69276951d353f75f39f6bb30d51b2e53989 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:03:25,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:03:25,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-12-02 21:03:25,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:03:25,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:03:25,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:03:25,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:03:25,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:03:25,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:03:25,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:03:25,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:03:25,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:03:25,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:03:25,782 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:03:25,783 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:03:25,783 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 21:03:25,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:03:25,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:03:25,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:03:25,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:03:25,785 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:03:25,786 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:03:25,787 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:03:25,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:03:25,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:03:25,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:03:25,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:03:25,789 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:03:25,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:03:25,790 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_94d9992c-65e7-49e8-a5ae-a9398684adf5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3248e88e6fd49fdcf0a9f78f1aa9e69276951d353f75f39f6bb30d51b2e53989 [2023-12-02 21:03:26,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:03:26,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:03:26,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:03:26,051 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:03:26,051 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:03:26,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/memsafety/test-0234-2.i [2023-12-02 21:03:28,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:03:29,170 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:03:29,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/sv-benchmarks/c/memsafety/test-0234-2.i [2023-12-02 21:03:29,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/data/6a7f7ff97/99c292e94e1645c7b274fb7cb9d96dba/FLAGcc32c4d55 [2023-12-02 21:03:29,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/data/6a7f7ff97/99c292e94e1645c7b274fb7cb9d96dba [2023-12-02 21:03:29,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:03:29,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:03:29,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:03:29,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:03:29,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:03:29,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60530f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29, skipping insertion in model container [2023-12-02 21:03:29,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:03:29,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:03:29,661 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:03:29,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:03:29,760 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:03:29,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29 WrapperNode [2023-12-02 21:03:29,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:03:29,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:03:29,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:03:29,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:03:29,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,823 INFO L138 Inliner]: procedures = 188, calls = 58, calls flagged for inlining = 20, calls inlined = 30, statements flattened = 316 [2023-12-02 21:03:29,823 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:03:29,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:03:29,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:03:29,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:03:29,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:03:29,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:03:29,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:03:29,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:03:29,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:29" (1/1) ... [2023-12-02 21:03:29,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:03:29,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:03:29,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:03:29,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94d9992c-65e7-49e8-a5ae-a9398684adf5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:03:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:03:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:03:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:03:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:03:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:03:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 21:03:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:03:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:03:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:03:30,079 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:03:30,081 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:03:30,666 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:03:30,793 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:03:30,793 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-02 21:03:30,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:30 BoogieIcfgContainer [2023-12-02 21:03:30,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:03:30,796 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:03:30,797 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:03:30,808 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:03:30,809 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:30" (1/1) ... [2023-12-02 21:03:30,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:03:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 162 states and 187 transitions. [2023-12-02 21:03:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 187 transitions. [2023-12-02 21:03:30,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 21:03:30,876 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,012 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 21:03:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 162 states and 186 transitions. [2023-12-02 21:03:31,034 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 186 transitions. [2023-12-02 21:03:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 21:03:31,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:03:31,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:31,146 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 6 treesize of output 5 [2023-12-02 21:03:31,159 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 21:03:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 161 states and 185 transitions. [2023-12-02 21:03:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2023-12-02 21:03:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:03:31,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:03:31,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:31,300 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 1 [2023-12-02 21:03:31,332 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 21:03:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 160 states and 184 transitions. [2023-12-02 21:03:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2023-12-02 21:03:31,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:03:31,443 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:03:31,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:31,490 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 21:03:31,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 160 states and 183 transitions. [2023-12-02 21:03:31,499 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 183 transitions. [2023-12-02 21:03:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:03:31,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:03:31,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:31,574 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 6 treesize of output 5 [2023-12-02 21:03:31,576 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 21:03:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 159 states and 182 transitions. [2023-12-02 21:03:31,588 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2023-12-02 21:03:31,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:03:31,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:31,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:31,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:03:31,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:31,701 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 1 [2023-12-02 21:03:31,777 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 15 treesize of output 11 [2023-12-02 21:03:31,840 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 21:03:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 160 states and 183 transitions. [2023-12-02 21:03:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 183 transitions. [2023-12-02 21:03:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 21:03:32,347 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:32,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:32,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:03:32,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:32,474 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 [2023-12-02 21:03:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:03:32,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 159 states and 182 transitions. [2023-12-02 21:03:32,722 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2023-12-02 21:03:32,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:03:32,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:32,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:32,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:03:32,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:32,801 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 6 treesize of output 5 [2023-12-02 21:03:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:03:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:32,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 158 states and 180 transitions. [2023-12-02 21:03:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2023-12-02 21:03:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:03:32,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:32,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:03:32,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:33,011 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 1 [2023-12-02 21:03:33,062 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 15 treesize of output 11 [2023-12-02 21:03:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 159 states and 181 transitions. [2023-12-02 21:03:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 181 transitions. [2023-12-02 21:03:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 21:03:33,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:33,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:03:33,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:33,663 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 1 [2023-12-02 21:03:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:03:33,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:33,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 158 states and 180 transitions. [2023-12-02 21:03:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 180 transitions. [2023-12-02 21:03:33,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 21:03:33,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:33,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:34,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:03:34,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:34,053 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 6 treesize of output 5 [2023-12-02 21:03:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:03:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 157 states and 178 transitions. [2023-12-02 21:03:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2023-12-02 21:03:34,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 21:03:34,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:34,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:34,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:03:34,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:34,229 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 1 [2023-12-02 21:03:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:03:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 156 states and 177 transitions. [2023-12-02 21:03:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2023-12-02 21:03:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 21:03:34,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:34,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:34,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:03:34,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:34,398 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 6 treesize of output 5 [2023-12-02 21:03:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:03:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 155 states and 175 transitions. [2023-12-02 21:03:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 175 transitions. [2023-12-02 21:03:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 21:03:34,427 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:34,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:34,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:03:34,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:34,621 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 1 [2023-12-02 21:03:34,663 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 15 treesize of output 11 [2023-12-02 21:03:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:03:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 156 states and 176 transitions. [2023-12-02 21:03:35,088 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 176 transitions. [2023-12-02 21:03:35,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:03:35,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:35,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:35,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:03:35,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:35,296 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 1 [2023-12-02 21:03:35,335 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 15 treesize of output 11 [2023-12-02 21:03:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:03:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 157 states and 177 transitions. [2023-12-02 21:03:35,495 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions. [2023-12-02 21:03:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:03:35,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:35,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:35,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-02 21:03:35,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:35,685 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 1 [2023-12-02 21:03:35,805 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 21:03:35,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 14 treesize of output 13 [2023-12-02 21:03:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:03:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:36,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 157 states and 178 transitions. [2023-12-02 21:03:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2023-12-02 21:03:36,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 21:03:36,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:36,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:03:36,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:36,645 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 6 treesize of output 5 [2023-12-02 21:03:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:03:36,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 156 states and 177 transitions. [2023-12-02 21:03:36,694 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2023-12-02 21:03:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 21:03:36,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:36,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:36,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 21:03:36,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:36,954 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 1 [2023-12-02 21:03:36,996 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 15 treesize of output 11 [2023-12-02 21:03:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:03:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 157 states and 178 transitions. [2023-12-02 21:03:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2023-12-02 21:03:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 21:03:37,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:37,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:37,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:03:37,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:37,451 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 1 [2023-12-02 21:03:37,519 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 13 treesize of output 9 [2023-12-02 21:03:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:03:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 158 states and 179 transitions. [2023-12-02 21:03:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2023-12-02 21:03:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 21:03:38,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:38,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:38,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:03:38,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:38,604 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 1 [2023-12-02 21:03:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 21:03:38,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 157 states and 178 transitions. [2023-12-02 21:03:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2023-12-02 21:03:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:03:38,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:38,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:39,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:03:39,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:39,244 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-02 21:03:39,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-02 21:03:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-02 21:03:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 156 states and 177 transitions. [2023-12-02 21:03:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2023-12-02 21:03:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:03:42,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:42,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 21:03:42,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:42,941 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 1 [2023-12-02 21:03:43,724 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 15 treesize of output 11 [2023-12-02 21:03:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:03:45,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 157 states and 178 transitions. [2023-12-02 21:03:45,257 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2023-12-02 21:03:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 21:03:45,258 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:45,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:45,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 21:03:45,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:45,578 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 1 [2023-12-02 21:03:45,590 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 13 treesize of output 9 [2023-12-02 21:03:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 21:03:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 158 states and 179 transitions. [2023-12-02 21:03:46,214 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2023-12-02 21:03:46,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 21:03:46,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:46,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:46,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 21:03:46,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:46,485 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 6 treesize of output 5 [2023-12-02 21:03:46,501 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 1 [2023-12-02 21:04:08,792 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 21:04:08,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 18 treesize of output 17 [2023-12-02 21:04:08,967 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 21:04:08,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-02 21:04:33,287 WARN L293 SmtUtils]: Spent 10.24s 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 21:04:33,310 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-02 21:04:45,180 WARN L293 SmtUtils]: Spent 10.10s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:04:56,962 WARN L293 SmtUtils]: Spent 10.17s on a formula simplification. DAG size of input: 31 DAG size of output: 31 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:05:54,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:06:16,491 WARN L293 SmtUtils]: Spent 20.69s on a formula simplification. DAG size of input: 43 DAG size of output: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:06:29,798 WARN L293 SmtUtils]: Spent 10.22s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:06:42,091 WARN L293 SmtUtils]: Spent 10.29s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:06:55,932 WARN L293 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 41 DAG size of output: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:07:13,780 WARN L293 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:07:26,290 WARN L293 SmtUtils]: Spent 10.19s 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 21:07:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 159 states and 180 transitions. [2023-12-02 21:07:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 180 transitions. [2023-12-02 21:07:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-02 21:07:27,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:27,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 21:07:27,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:29,423 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 1 [2023-12-02 21:07:29,435 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 13 treesize of output 9 [2023-12-02 21:07:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:07:33,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:07:33,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:33,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 161 states and 184 transitions. [2023-12-02 21:07:33,926 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 184 transitions. [2023-12-02 21:07:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 21:07:33,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:33,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:34,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 21:07:34,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:34,381 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 1 [2023-12-02 21:07:34,389 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 6 treesize of output 5 [2023-12-02 21:07:35,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 21:07:35,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 21:07:35,778 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 21:07:35,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-02 21:07:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 21:07:58,060 WARN L293 SmtUtils]: Spent 10.04s 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 21:09:14,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:09:24,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:09:50,025 WARN L293 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 48 DAG size of output: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:10:09,262 WARN L293 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 46 DAG size of output: 41 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:10:45,487 WARN L293 SmtUtils]: Spent 20.43s on a formula simplification. DAG size of input: 43 DAG size of output: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:10:58,088 WARN L293 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 45 DAG size of output: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:10,992 WARN L293 SmtUtils]: Spent 10.28s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:23,658 WARN L293 SmtUtils]: Spent 10.23s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:34,589 WARN L293 SmtUtils]: Spent 10.28s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:45,162 WARN L293 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:11:56,069 WARN L293 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:12:07,219 WARN L293 SmtUtils]: Spent 10.25s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:12:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:10,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 160 states and 183 transitions. [2023-12-02 21:12:10,317 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 183 transitions. [2023-12-02 21:12:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:12:10,317 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:10,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:12:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:10,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:12:10,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:11,305 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-02 21:12:11,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-02 21:12:12,220 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-12-02 21:12:12,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 14 [2023-12-02 21:12:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 21:13:02,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:13:12,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-02 21:14:53,308 WARN L293 SmtUtils]: Spent 10.26s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:05,325 WARN L293 SmtUtils]: Spent 10.20s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:18,652 WARN L293 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:32,040 WARN L293 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:42,831 WARN L293 SmtUtils]: Spent 10.21s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:15:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 171 states and 200 transitions. [2023-12-02 21:15:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 200 transitions. [2023-12-02 21:15:50,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:15:50,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:50,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:15:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:50,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 21:15:50,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:50,709 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 1 [2023-12-02 21:15:50,712 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 6 treesize of output 5 [2023-12-02 21:16:45,279 WARN L293 SmtUtils]: Spent 10.02s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 21:16:45,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 21:16:45,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-12-02 21:16:45,298 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 21:16:45,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11