./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:17:15,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:17:15,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:17:15,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:17:15,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:17:15,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:17:15,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:17:15,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:17:15,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:17:15,888 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:17:15,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:17:15,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:17:15,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:17:15,896 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:17:15,896 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:17:15,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:17:15,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:17:15,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:17:15,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:17:15,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:17:15,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:17:15,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:17:15,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:17:15,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:17:15,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:17:15,905 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:17:15,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:17:15,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:17:15,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:17:15,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:17:15,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:17:15,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:17:15,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:15,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:17:15,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:17:15,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:17:15,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:17:15,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:17:15,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:17:15,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:17:15,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:17:15,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:17:15,915 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c [2024-10-31 22:17:16,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:17:16,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:17:16,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:17:16,276 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:17:16,277 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:17:16,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i Unable to find full path for "g++" [2024-10-31 22:17:18,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:17:19,116 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:17:19,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2024-10-31 22:17:19,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/data/8142b9774/24ef01a427c84d98b323c366f11a05a7/FLAG0247e767c [2024-10-31 22:17:19,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/data/8142b9774/24ef01a427c84d98b323c366f11a05a7 [2024-10-31 22:17:19,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:17:19,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:17:19,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:19,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:17:19,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:17:19,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff100d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19, skipping insertion in model container [2024-10-31 22:17:19,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:17:19,522 WARN L251 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_5517f19e-9991-4a64-bec4-b52c8cf81752/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i[916,929] [2024-10-31 22:17:19,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:19,621 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:17:19,634 WARN L251 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_5517f19e-9991-4a64-bec4-b52c8cf81752/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i[916,929] [2024-10-31 22:17:19,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:17:19,764 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:17:19,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19 WrapperNode [2024-10-31 22:17:19,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:17:19,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:19,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:17:19,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:17:19,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,865 INFO L138 Inliner]: procedures = 29, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427 [2024-10-31 22:17:19,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:17:19,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:17:19,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:17:19,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:17:19,895 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,906 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,958 INFO L175 MemorySlicer]: Split 101 memory accesses to 12 slices as follows [2, 12, 8, 17, 8, 8, 3, 6, 6, 8, 17, 6]. 17 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 5, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1]. [2024-10-31 22:17:19,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:19,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:20,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:20,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:20,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:20,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:17:20,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:17:20,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:17:20,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:17:20,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (1/1) ... [2024-10-31 22:17:20,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:17:20,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:20,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:17:20,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:17:20,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:17:20,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-31 22:17:20,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-31 22:17:20,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-31 22:17:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-31 22:17:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-31 22:17:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-31 22:17:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-31 22:17:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-31 22:17:20,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-31 22:17:20,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-31 22:17:20,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-31 22:17:20,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-31 22:17:20,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:17:20,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:17:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:17:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:17:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 22:17:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-31 22:17:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-31 22:17:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-31 22:17:20,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-31 22:17:20,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-31 22:17:20,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-31 22:17:20,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-31 22:17:20,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-31 22:17:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-31 22:17:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-31 22:17:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-31 22:17:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-31 22:17:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-31 22:17:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-31 22:17:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-31 22:17:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-31 22:17:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-31 22:17:20,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-31 22:17:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-31 22:17:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:17:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:17:20,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:17:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:17:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 22:17:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-31 22:17:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-31 22:17:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-31 22:17:20,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-31 22:17:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-31 22:17:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-31 22:17:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-31 22:17:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-31 22:17:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-31 22:17:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-31 22:17:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-31 22:17:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-31 22:17:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-31 22:17:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-31 22:17:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-31 22:17:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-31 22:17:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-31 22:17:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-31 22:17:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-31 22:17:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:17:20,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:17:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:17:20,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:17:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:17:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:17:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:17:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:17:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:17:20,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:17:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-31 22:17:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-31 22:17:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-31 22:17:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-31 22:17:20,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:17:20,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:17:20,507 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:17:20,510 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:17:21,272 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-10-31 22:17:21,272 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:17:21,299 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:17:21,299 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:17:21,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:21 BoogieIcfgContainer [2024-10-31 22:17:21,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:17:21,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:17:21,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:17:21,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:17:21,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:17:19" (1/3) ... [2024-10-31 22:17:21,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d50839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:21, skipping insertion in model container [2024-10-31 22:17:21,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:17:19" (2/3) ... [2024-10-31 22:17:21,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d50839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:17:21, skipping insertion in model container [2024-10-31 22:17:21,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:17:21" (3/3) ... [2024-10-31 22:17:21,317 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-46.i [2024-10-31 22:17:21,345 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:17:21,345 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:17:21,449 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:17:21,456 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6db2e9ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:17:21,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:17:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:17:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-31 22:17:21,489 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:21,490 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:21,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:21,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash 302560543, now seen corresponding path program 1 times [2024-10-31 22:17:21,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:21,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876163577] [2024-10-31 22:17:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:21,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:17:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:17:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:17:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:17:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:17:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:17:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:17:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:17:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 22:17:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:17:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-31 22:17:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-31 22:17:22,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:22,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876163577] [2024-10-31 22:17:22,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876163577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:22,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:22,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:17:22,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076256165] [2024-10-31 22:17:22,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:22,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:17:22,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:22,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:17:22,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:17:22,259 INFO L87 Difference]: Start difference. First operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 85 states have internal predecessors, (119), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-31 22:17:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:22,311 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2024-10-31 22:17:22,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:17:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-10-31 22:17:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:22,332 INFO L225 Difference]: With dead ends: 195 [2024-10-31 22:17:22,332 INFO L226 Difference]: Without dead ends: 97 [2024-10-31 22:17:22,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:17:22,343 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:22,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:17:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-31 22:17:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-31 22:17:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.382716049382716) internal successors, (112), 81 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:17:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2024-10-31 22:17:22,412 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 116 [2024-10-31 22:17:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:22,413 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2024-10-31 22:17:22,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-31 22:17:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2024-10-31 22:17:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-31 22:17:22,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:22,418 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:22,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:17:22,419 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:22,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash 81671171, now seen corresponding path program 1 times [2024-10-31 22:17:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:22,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599250035] [2024-10-31 22:17:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:17:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:17:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:17:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:17:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:17:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:17:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:17:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:17:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 22:17:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:17:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-31 22:17:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-31 22:17:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599250035] [2024-10-31 22:17:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599250035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:23,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:23,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 22:17:23,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416716908] [2024-10-31 22:17:23,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:23,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:17:23,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:23,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:17:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:17:23,943 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-31 22:17:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:24,550 INFO L93 Difference]: Finished difference Result 348 states and 504 transitions. [2024-10-31 22:17:24,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:17:24,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-10-31 22:17:24,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:24,555 INFO L225 Difference]: With dead ends: 348 [2024-10-31 22:17:24,556 INFO L226 Difference]: Without dead ends: 254 [2024-10-31 22:17:24,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:17:24,559 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 464 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:24,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 782 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:17:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-10-31 22:17:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2024-10-31 22:17:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.412037037037037) internal successors, (305), 217 states have internal predecessors, (305), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-31 22:17:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 363 transitions. [2024-10-31 22:17:24,598 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 363 transitions. Word has length 116 [2024-10-31 22:17:24,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:24,599 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 363 transitions. [2024-10-31 22:17:24,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-31 22:17:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 363 transitions. [2024-10-31 22:17:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-31 22:17:24,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:24,604 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:24,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:17:24,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:24,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash -505134843, now seen corresponding path program 1 times [2024-10-31 22:17:24,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:24,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931164920] [2024-10-31 22:17:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:24,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:17:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:17:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:17:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:17:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:17:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:17:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:17:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:17:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:17:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:17:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:17:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 22:17:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:17:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-31 22:17:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-31 22:17:25,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:17:25,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931164920] [2024-10-31 22:17:25,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931164920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:17:25,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:17:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:17:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952061030] [2024-10-31 22:17:25,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:17:25,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:17:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:17:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:17:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:17:25,506 INFO L87 Difference]: Start difference. First operand 249 states and 363 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-31 22:17:25,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:17:25,682 INFO L93 Difference]: Finished difference Result 747 states and 1092 transitions. [2024-10-31 22:17:25,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:17:25,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2024-10-31 22:17:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:17:25,691 INFO L225 Difference]: With dead ends: 747 [2024-10-31 22:17:25,695 INFO L226 Difference]: Without dead ends: 501 [2024-10-31 22:17:25,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:17:25,701 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 129 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:17:25,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 575 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:17:25,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-10-31 22:17:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 285. [2024-10-31 22:17:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 252 states have (on average 1.4087301587301588) internal successors, (355), 253 states have internal predecessors, (355), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-31 22:17:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 413 transitions. [2024-10-31 22:17:25,767 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 413 transitions. Word has length 116 [2024-10-31 22:17:25,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:17:25,768 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 413 transitions. [2024-10-31 22:17:25,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-31 22:17:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 413 transitions. [2024-10-31 22:17:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-31 22:17:25,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:17:25,773 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:17:25,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:17:25,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:17:25,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:17:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1577287888, now seen corresponding path program 1 times [2024-10-31 22:17:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:17:25,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673025474] [2024-10-31 22:17:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:17:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:17:25,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9304607] [2024-10-31 22:17:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:17:25,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:17:25,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:17:25,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:17:25,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5517f19e-9991-4a64-bec4-b52c8cf81752/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:17:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:17:26,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 22:17:26,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:17:28,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 77 treesize of output 45