./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0a15bafc8303311b2bd7bb6d250a0c3e0c3fd8acbc6e1c59dc33f3d3e662f861 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:16:23,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:16:23,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:16:23,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:16:23,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:16:23,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:16:23,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:16:23,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:16:23,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:16:23,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:16:23,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:16:23,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:16:23,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:16:23,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:16:23,137 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:16:23,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:16:23,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:16:23,142 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:16:23,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:16:23,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:16:23,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:16:23,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:16:23,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:16:23,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:16:23,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:16:23,147 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:16:23,147 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:16:23,147 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:16:23,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:16:23,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:16:23,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:16:23,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:16:23,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:16:23,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:16:23,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:16:23,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:16:23,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:16:23,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:16:23,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:16:23,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:16:23,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:16:23,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:16:23,161 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a15bafc8303311b2bd7bb6d250a0c3e0c3fd8acbc6e1c59dc33f3d3e662f861 [2024-10-24 11:16:23,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:16:23,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:16:23,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:16:23,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:16:23,444 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:16:23,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i [2024-10-24 11:16:24,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:16:25,163 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:16:25,164 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i [2024-10-24 11:16:25,173 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b323d26d/7c0bf044626f4ee69e0f6e62c6e84fc4/FLAGced023981 [2024-10-24 11:16:25,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b323d26d/7c0bf044626f4ee69e0f6e62c6e84fc4 [2024-10-24 11:16:25,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:16:25,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:16:25,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:16:25,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:16:25,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:16:25,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31e7ee97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25, skipping insertion in model container [2024-10-24 11:16:25,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,236 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:16:25,421 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i[916,929] [2024-10-24 11:16:25,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:16:25,518 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:16:25,531 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-40.i[916,929] [2024-10-24 11:16:25,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:16:25,609 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:16:25,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25 WrapperNode [2024-10-24 11:16:25,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:16:25,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:16:25,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:16:25,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:16:25,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,692 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 475 [2024-10-24 11:16:25,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:16:25,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:16:25,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:16:25,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:16:25,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,762 INFO L175 MemorySlicer]: Split 120 memory accesses to 8 slices as follows [2, 16, 14, 15, 27, 17, 10, 19]. 23 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 2, 2, 1, 3, 3, 2, 3]. The 17 writes are split as follows [0, 2, 2, 1, 3, 3, 2, 4]. [2024-10-24 11:16:25,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:16:25,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:16:25,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:16:25,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:16:25,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (1/1) ... [2024-10-24 11:16:25,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:16:25,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:16:25,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:16:25,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:16:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:16:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 11:16:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 11:16:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-24 11:16:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-24 11:16:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-24 11:16:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:16:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-24 11:16:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-24 11:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:16:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:16:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:16:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:16:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 11:16:25,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 11:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 11:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 11:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-24 11:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-24 11:16:25,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-24 11:16:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-24 11:16:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-24 11:16:25,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-24 11:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:16:25,948 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:16:25,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 11:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 11:16:25,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:16:25,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:16:26,085 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:16:26,087 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:16:26,612 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-10-24 11:16:26,613 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:16:26,652 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:16:26,652 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:16:26,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:16:26 BoogieIcfgContainer [2024-10-24 11:16:26,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:16:26,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:16:26,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:16:26,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:16:26,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:16:25" (1/3) ... [2024-10-24 11:16:26,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697b7845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:16:26, skipping insertion in model container [2024-10-24 11:16:26,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:25" (2/3) ... [2024-10-24 11:16:26,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697b7845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:16:26, skipping insertion in model container [2024-10-24 11:16:26,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:16:26" (3/3) ... [2024-10-24 11:16:26,663 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-40.i [2024-10-24 11:16:26,680 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:16:26,680 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:16:26,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:16:26,764 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;@3cf52211, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:16:26,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:16:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 11:16:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 11:16:26,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:26,787 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:26,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:26,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1004910808, now seen corresponding path program 1 times [2024-10-24 11:16:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:26,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430324896] [2024-10-24 11:16:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:26,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:16:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:16:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:16:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:16:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:16:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 11:16:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:16:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:16:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:16:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:16:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:16:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:16:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:16:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 11:16:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 11:16:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 11:16:27,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:27,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430324896] [2024-10-24 11:16:27,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430324896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:27,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:27,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:16:27,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227132766] [2024-10-24 11:16:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:27,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:16:27,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:27,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:16:27,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:16:27,330 INFO L87 Difference]: Start difference. First operand has 106 states, 84 states have (on average 1.4523809523809523) internal successors, (122), 85 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 11:16:27,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:27,387 INFO L93 Difference]: Finished difference Result 209 states and 337 transitions. [2024-10-24 11:16:27,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:16:27,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-10-24 11:16:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:27,421 INFO L225 Difference]: With dead ends: 209 [2024-10-24 11:16:27,423 INFO L226 Difference]: Without dead ends: 104 [2024-10-24 11:16:27,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:16:27,432 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:27,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:16:27,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-24 11:16:27,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-24 11:16:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.4096385542168675) internal successors, (117), 83 states have internal predecessors, (117), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 11:16:27,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2024-10-24 11:16:27,476 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 145 [2024-10-24 11:16:27,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:27,476 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2024-10-24 11:16:27,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-10-24 11:16:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2024-10-24 11:16:27,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-24 11:16:27,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:27,482 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:27,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:16:27,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:27,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:27,484 INFO L85 PathProgramCache]: Analyzing trace with hash 332441170, now seen corresponding path program 1 times [2024-10-24 11:16:27,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:27,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604143689] [2024-10-24 11:16:27,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:27,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:16:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:16:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:16:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:16:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:16:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 11:16:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:16:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:16:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:16:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:16:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:16:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:16:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:16:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:27,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 11:16:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 11:16:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 11:16:28,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:28,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604143689] [2024-10-24 11:16:28,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604143689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:28,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:28,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:16:28,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168967112] [2024-10-24 11:16:28,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:28,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:16:28,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:28,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:16:28,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:16:28,015 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 11:16:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:28,080 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2024-10-24 11:16:28,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:16:28,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2024-10-24 11:16:28,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:28,087 INFO L225 Difference]: With dead ends: 209 [2024-10-24 11:16:28,087 INFO L226 Difference]: Without dead ends: 106 [2024-10-24 11:16:28,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:16:28,091 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:28,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 440 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:16:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-24 11:16:28,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-10-24 11:16:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.4) internal successors, (119), 85 states have internal predecessors, (119), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 11:16:28,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2024-10-24 11:16:28,116 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 145 [2024-10-24 11:16:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:28,120 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2024-10-24 11:16:28,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 11:16:28,121 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2024-10-24 11:16:28,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:16:28,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:28,126 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:28,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:16:28,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:28,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:28,128 INFO L85 PathProgramCache]: Analyzing trace with hash -685160803, now seen corresponding path program 1 times [2024-10-24 11:16:28,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:28,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405321137] [2024-10-24 11:16:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:28,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:16:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:16:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:16:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:16:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:16:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 11:16:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:16:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:16:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:16:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:16:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:16:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:16:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:16:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 11:16:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 11:16:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 11:16:28,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:28,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405321137] [2024-10-24 11:16:28,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405321137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:28,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:28,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:16:28,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883607630] [2024-10-24 11:16:28,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:28,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:16:28,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:28,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:16:28,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:16:28,446 INFO L87 Difference]: Start difference. First operand 106 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 11:16:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:28,495 INFO L93 Difference]: Finished difference Result 214 states and 317 transitions. [2024-10-24 11:16:28,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:16:28,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-24 11:16:28,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:28,498 INFO L225 Difference]: With dead ends: 214 [2024-10-24 11:16:28,498 INFO L226 Difference]: Without dead ends: 109 [2024-10-24 11:16:28,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:16:28,500 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 1 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:28,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 437 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:16:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-24 11:16:28,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-10-24 11:16:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 87 states have internal predecessors, (121), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 11:16:28,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2024-10-24 11:16:28,519 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 148 [2024-10-24 11:16:28,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:28,520 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2024-10-24 11:16:28,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 11:16:28,520 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2024-10-24 11:16:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:16:28,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:28,526 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:28,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:16:28,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:28,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1494507429, now seen corresponding path program 1 times [2024-10-24 11:16:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82933823] [2024-10-24 11:16:28,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:16:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:16:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:16:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:16:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 11:16:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 11:16:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 11:16:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:16:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:16:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 11:16:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:16:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 11:16:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 11:16:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 11:16:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 11:16:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 11:16:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 11:16:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 11:16:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 11:16:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:16:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-10-24 11:16:28,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:16:28,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82933823] [2024-10-24 11:16:28,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82933823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:16:28,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:16:28,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:16:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912440467] [2024-10-24 11:16:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:16:28,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:16:28,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:16:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:16:28,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:16:28,719 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 11:16:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:16:28,767 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2024-10-24 11:16:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:16:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-10-24 11:16:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:16:28,772 INFO L225 Difference]: With dead ends: 218 [2024-10-24 11:16:28,773 INFO L226 Difference]: Without dead ends: 111 [2024-10-24 11:16:28,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:16:28,775 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:16:28,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 441 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:16:28,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-24 11:16:28,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-10-24 11:16:28,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 89 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-24 11:16:28,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 161 transitions. [2024-10-24 11:16:28,790 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 161 transitions. Word has length 148 [2024-10-24 11:16:28,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:16:28,793 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 161 transitions. [2024-10-24 11:16:28,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-10-24 11:16:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 161 transitions. [2024-10-24 11:16:28,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:16:28,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:16:28,796 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:16:28,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:16:28,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:16:28,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:16:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1494447847, now seen corresponding path program 1 times [2024-10-24 11:16:28,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:16:28,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889845110] [2024-10-24 11:16:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:16:28,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:16:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat