./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/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 ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:40:21,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:40:21,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:40:21,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:40:21,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:40:21,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:40:21,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:40:21,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:40:21,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:40:21,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:40:21,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:40:21,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:40:21,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:40:21,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:40:21,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:40:21,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:40:21,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:40:21,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:40:21,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:40:21,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:40:21,273 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:40:21,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:40:21,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:40:21,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:40:21,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:40:21,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:40:21,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:40:21,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:40:21,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:40:21,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:40:21,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:40:21,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:40:21,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:40:21,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:40:21,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:40:21,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:40:21,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:40:21,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:40:21,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:40:21,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:40:21,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:40:21,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:40:21,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:40:21,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:40:21,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:40:21,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:40:21,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:40:21,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:40:21,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:40:21,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:40:21,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:40:21,341 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:40:21,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:40:21,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:40:21,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:40:21,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:40:21,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:40:21,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:40:21,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:40:21,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:40:21,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:40:21,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:40:21,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:40:21,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:40:21,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:40:21,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:40:21,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:40:21,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:40:21,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:40:21,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:40:21,346 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:40:21,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:40:21,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:40:21,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2022-07-21 10:40:21,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:40:21,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:40:21,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:40:21,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:40:21,697 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:40:21,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-07-21 10:40:21,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6418966d7/2cd97afa2d9d41c398f3721a19f80923/FLAGae89707fc [2022-07-21 10:40:22,460 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:40:22,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-07-21 10:40:22,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6418966d7/2cd97afa2d9d41c398f3721a19f80923/FLAGae89707fc [2022-07-21 10:40:22,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6418966d7/2cd97afa2d9d41c398f3721a19f80923 [2022-07-21 10:40:22,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:40:22,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:40:22,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:40:22,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:40:22,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:40:22,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:22" (1/1) ... [2022-07-21 10:40:22,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609f73d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:22, skipping insertion in model container [2022-07-21 10:40:22,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:22" (1/1) ... [2022-07-21 10:40:22,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:40:22,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:40:23,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2022-07-21 10:40:23,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:40:23,749 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:40:23,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2022-07-21 10:40:23,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:40:23,961 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:40:23,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23 WrapperNode [2022-07-21 10:40:23,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:40:23,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:40:23,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:40:23,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:40:23,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,108 INFO L137 Inliner]: procedures = 144, calls = 800, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1462 [2022-07-21 10:40:24,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:40:24,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:40:24,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:40:24,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:40:24,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:40:24,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:40:24,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:40:24,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:40:24,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (1/1) ... [2022-07-21 10:40:24,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:40:24,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:24,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 10:40:24,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 10:40:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-07-21 10:40:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-07-21 10:40:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-07-21 10:40:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-07-21 10:40:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-07-21 10:40:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-07-21 10:40:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2022-07-21 10:40:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2022-07-21 10:40:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-07-21 10:40:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-07-21 10:40:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:40:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-07-21 10:40:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-07-21 10:40:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-07-21 10:40:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-07-21 10:40:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-07-21 10:40:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-07-21 10:40:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:40:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:40:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-07-21 10:40:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-07-21 10:40:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-07-21 10:40:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-07-21 10:40:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-07-21 10:40:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-07-21 10:40:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:40:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:40:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:40:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2022-07-21 10:40:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2022-07-21 10:40:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:40:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:40:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:40:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:40:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-07-21 10:40:24,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-07-21 10:40:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:40:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-07-21 10:40:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-07-21 10:40:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2022-07-21 10:40:24,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2022-07-21 10:40:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 10:40:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 10:40:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-07-21 10:40:24,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-07-21 10:40:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 10:40:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 10:40:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:40:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2022-07-21 10:40:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2022-07-21 10:40:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 10:40:24,331 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 10:40:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 10:40:24,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 10:40:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:40:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:40:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-07-21 10:40:24,333 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-07-21 10:40:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-07-21 10:40:24,334 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-07-21 10:40:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:40:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-07-21 10:40:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-07-21 10:40:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-07-21 10:40:24,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-07-21 10:40:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-21 10:40:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-21 10:40:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-07-21 10:40:24,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-07-21 10:40:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:40:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:40:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-07-21 10:40:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-07-21 10:40:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-07-21 10:40:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-07-21 10:40:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 10:40:24,337 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 10:40:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-07-21 10:40:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-07-21 10:40:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-07-21 10:40:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-07-21 10:40:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-07-21 10:40:24,338 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-07-21 10:40:24,338 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-07-21 10:40:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-07-21 10:40:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:40:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-07-21 10:40:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-07-21 10:40:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-07-21 10:40:24,339 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-07-21 10:40:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 10:40:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 10:40:24,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:40:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:40:24,341 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-07-21 10:40:24,341 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-07-21 10:40:24,733 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:40:24,737 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:40:31,852 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:40:31,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:40:31,872 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 10:40:31,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:31 BoogieIcfgContainer [2022-07-21 10:40:31,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:40:31,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:40:31,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:40:31,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:40:31,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:40:22" (1/3) ... [2022-07-21 10:40:31,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e24adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:31, skipping insertion in model container [2022-07-21 10:40:31,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:23" (2/3) ... [2022-07-21 10:40:31,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e24adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:31, skipping insertion in model container [2022-07-21 10:40:31,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:31" (3/3) ... [2022-07-21 10:40:31,884 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2022-07-21 10:40:31,896 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:40:31,897 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:40:31,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:40:31,981 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@358cfb23, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@113e008c [2022-07-21 10:40:31,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:40:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 709 states, 502 states have (on average 1.3924302788844622) internal successors, (699), 524 states have internal predecessors, (699), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) [2022-07-21 10:40:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 10:40:32,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:32,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:32,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:32,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:32,012 INFO L85 PathProgramCache]: Analyzing trace with hash -47262178, now seen corresponding path program 1 times [2022-07-21 10:40:32,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:32,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815143072] [2022-07-21 10:40:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:32,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:32,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:32,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815143072] [2022-07-21 10:40:32,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815143072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:32,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:32,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 10:40:32,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495394779] [2022-07-21 10:40:32,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:32,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:32,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:32,487 INFO L87 Difference]: Start difference. First operand has 709 states, 502 states have (on average 1.3924302788844622) internal successors, (699), 524 states have internal predecessors, (699), 167 states have call successors, (167), 42 states have call predecessors, (167), 42 states have return successors, (167), 167 states have call predecessors, (167), 167 states have call successors, (167) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:40:32,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:32,644 INFO L93 Difference]: Finished difference Result 1401 states and 2096 transitions. [2022-07-21 10:40:32,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:32,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 10:40:32,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:32,674 INFO L225 Difference]: With dead ends: 1401 [2022-07-21 10:40:32,674 INFO L226 Difference]: Without dead ends: 691 [2022-07-21 10:40:32,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:32,689 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 973 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:32,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 982 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-07-21 10:40:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-07-21 10:40:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 486 states have (on average 1.3559670781893005) internal successors, (659), 502 states have internal predecessors, (659), 163 states have call successors, (163), 42 states have call predecessors, (163), 41 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2022-07-21 10:40:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 979 transitions. [2022-07-21 10:40:32,802 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 979 transitions. Word has length 19 [2022-07-21 10:40:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:32,802 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 979 transitions. [2022-07-21 10:40:32,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:40:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 979 transitions. [2022-07-21 10:40:32,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-21 10:40:32,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:32,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:32,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:40:32,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:32,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:32,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1604484427, now seen corresponding path program 1 times [2022-07-21 10:40:32,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:32,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727739920] [2022-07-21 10:40:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 10:40:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:32,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:32,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727739920] [2022-07-21 10:40:32,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727739920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:32,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:32,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:40:32,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471818603] [2022-07-21 10:40:32,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:32,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:32,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:32,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:32,935 INFO L87 Difference]: Start difference. First operand 691 states and 979 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:33,211 INFO L93 Difference]: Finished difference Result 1711 states and 2411 transitions. [2022-07-21 10:40:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:33,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-07-21 10:40:33,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:33,220 INFO L225 Difference]: With dead ends: 1711 [2022-07-21 10:40:33,220 INFO L226 Difference]: Without dead ends: 1023 [2022-07-21 10:40:33,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:33,224 INFO L413 NwaCegarLoop]: 1267 mSDtfsCounter, 466 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:33,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 2207 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 10:40:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-07-21 10:40:33,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 995. [2022-07-21 10:40:33,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 702 states have (on average 1.3532763532763532) internal successors, (950), 724 states have internal predecessors, (950), 228 states have call successors, (228), 65 states have call predecessors, (228), 64 states have return successors, (222), 222 states have call predecessors, (222), 222 states have call successors, (222) [2022-07-21 10:40:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1400 transitions. [2022-07-21 10:40:33,303 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1400 transitions. Word has length 21 [2022-07-21 10:40:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:33,303 INFO L495 AbstractCegarLoop]: Abstraction has 995 states and 1400 transitions. [2022-07-21 10:40:33,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1400 transitions. [2022-07-21 10:40:33,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 10:40:33,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:33,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:33,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:40:33,310 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash 317112764, now seen corresponding path program 1 times [2022-07-21 10:40:33,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:33,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535867099] [2022-07-21 10:40:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:40:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:33,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:33,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535867099] [2022-07-21 10:40:33,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535867099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:33,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:33,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:40:33,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232140184] [2022-07-21 10:40:33,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:33,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:40:33,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:33,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:40:33,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:40:33,397 INFO L87 Difference]: Start difference. First operand 995 states and 1400 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:36,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:40:39,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:39,149 INFO L93 Difference]: Finished difference Result 2555 states and 3603 transitions. [2022-07-21 10:40:39,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:40:39,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-21 10:40:39,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:39,161 INFO L225 Difference]: With dead ends: 2555 [2022-07-21 10:40:39,161 INFO L226 Difference]: Without dead ends: 1563 [2022-07-21 10:40:39,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:39,167 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 1080 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 467 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:39,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 2199 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 10:40:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2022-07-21 10:40:39,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1559. [2022-07-21 10:40:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1100 states have (on average 1.3536363636363635) internal successors, (1489), 1130 states have internal predecessors, (1489), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 2197 transitions. [2022-07-21 10:40:39,243 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 2197 transitions. Word has length 25 [2022-07-21 10:40:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:39,244 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 2197 transitions. [2022-07-21 10:40:39,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2197 transitions. [2022-07-21 10:40:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 10:40:39,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:39,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:39,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:40:39,246 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:39,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:39,246 INFO L85 PathProgramCache]: Analyzing trace with hash -781514518, now seen corresponding path program 1 times [2022-07-21 10:40:39,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:39,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958516449] [2022-07-21 10:40:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:39,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:39,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:39,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958516449] [2022-07-21 10:40:39,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958516449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:39,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:39,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:40:39,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930258565] [2022-07-21 10:40:39,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:39,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:39,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:39,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:39,327 INFO L87 Difference]: Start difference. First operand 1559 states and 2197 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:40:39,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:39,494 INFO L93 Difference]: Finished difference Result 3141 states and 4431 transitions. [2022-07-21 10:40:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:39,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-21 10:40:39,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:39,507 INFO L225 Difference]: With dead ends: 3141 [2022-07-21 10:40:39,507 INFO L226 Difference]: Without dead ends: 1585 [2022-07-21 10:40:39,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:39,516 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 12 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:39,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1949 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:40:39,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-07-21 10:40:39,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1561. [2022-07-21 10:40:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1102 states have (on average 1.352994555353902) internal successors, (1491), 1132 states have internal predecessors, (1491), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2199 transitions. [2022-07-21 10:40:39,587 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2199 transitions. Word has length 24 [2022-07-21 10:40:39,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:39,588 INFO L495 AbstractCegarLoop]: Abstraction has 1561 states and 2199 transitions. [2022-07-21 10:40:39,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:40:39,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2199 transitions. [2022-07-21 10:40:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-21 10:40:39,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:39,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:39,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:40:39,589 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:39,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:39,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1053558324, now seen corresponding path program 1 times [2022-07-21 10:40:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:39,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226334838] [2022-07-21 10:40:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:39,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:39,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:39,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226334838] [2022-07-21 10:40:39,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226334838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:39,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:39,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:40:39,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211243950] [2022-07-21 10:40:39,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:39,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:39,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:39,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:39,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:39,676 INFO L87 Difference]: Start difference. First operand 1561 states and 2199 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:40:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:39,770 INFO L93 Difference]: Finished difference Result 3572 states and 5113 transitions. [2022-07-21 10:40:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-21 10:40:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:39,784 INFO L225 Difference]: With dead ends: 3572 [2022-07-21 10:40:39,784 INFO L226 Difference]: Without dead ends: 2014 [2022-07-21 10:40:39,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:40:39,793 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 259 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:39,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2364 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2022-07-21 10:40:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1573. [2022-07-21 10:40:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1114 states have (on average 1.35278276481149) internal successors, (1507), 1144 states have internal predecessors, (1507), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:39,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2215 transitions. [2022-07-21 10:40:39,869 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2215 transitions. Word has length 29 [2022-07-21 10:40:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:39,869 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2215 transitions. [2022-07-21 10:40:39,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:40:39,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2215 transitions. [2022-07-21 10:40:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 10:40:39,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:39,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:39,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:40:39,871 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:39,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:39,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1747046649, now seen corresponding path program 1 times [2022-07-21 10:40:39,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:39,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951580222] [2022-07-21 10:40:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:39,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:39,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:39,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951580222] [2022-07-21 10:40:39,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951580222] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:39,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750034019] [2022-07-21 10:40:39,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:39,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:39,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:39,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:39,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 10:40:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:40,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:40,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:40,455 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:40,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750034019] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:40,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:40,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239235912] [2022-07-21 10:40:40,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:40,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:40,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:40,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:40,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:40,458 INFO L87 Difference]: Start difference. First operand 1573 states and 2215 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:40,591 INFO L93 Difference]: Finished difference Result 1595 states and 2241 transitions. [2022-07-21 10:40:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-21 10:40:40,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:40,602 INFO L225 Difference]: With dead ends: 1595 [2022-07-21 10:40:40,607 INFO L226 Difference]: Without dead ends: 1584 [2022-07-21 10:40:40,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:40,611 INFO L413 NwaCegarLoop]: 991 mSDtfsCounter, 974 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:40,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 1004 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-07-21 10:40:40,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1573. [2022-07-21 10:40:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1114 states have (on average 1.3509874326750448) internal successors, (1505), 1144 states have internal predecessors, (1505), 357 states have call successors, (357), 102 states have call predecessors, (357), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:40,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2213 transitions. [2022-07-21 10:40:40,688 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2213 transitions. Word has length 35 [2022-07-21 10:40:40,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:40,689 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2213 transitions. [2022-07-21 10:40:40,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2213 transitions. [2022-07-21 10:40:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-21 10:40:40,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:40,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:40,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:40,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-21 10:40:40,916 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:40,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1804304951, now seen corresponding path program 1 times [2022-07-21 10:40:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:40,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527104653] [2022-07-21 10:40:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:41,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:41,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:41,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527104653] [2022-07-21 10:40:41,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527104653] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:41,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631829116] [2022-07-21 10:40:41,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:41,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:41,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:41,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:41,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 10:40:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:41,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:41,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:41,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:41,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:41,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631829116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:41,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:41,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:41,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534039660] [2022-07-21 10:40:41,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:41,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:41,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:41,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:41,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:41,474 INFO L87 Difference]: Start difference. First operand 1573 states and 2213 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:41,536 INFO L93 Difference]: Finished difference Result 1575 states and 2214 transitions. [2022-07-21 10:40:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:41,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-21 10:40:41,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:41,547 INFO L225 Difference]: With dead ends: 1575 [2022-07-21 10:40:41,548 INFO L226 Difference]: Without dead ends: 1572 [2022-07-21 10:40:41,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:41,550 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 945 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:41,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 976 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:41,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-07-21 10:40:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2022-07-21 10:40:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1114 states have (on average 1.3500897666068223) internal successors, (1504), 1143 states have internal predecessors, (1504), 356 states have call successors, (356), 102 states have call predecessors, (356), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2211 transitions. [2022-07-21 10:40:41,617 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2211 transitions. Word has length 35 [2022-07-21 10:40:41,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:41,618 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2211 transitions. [2022-07-21 10:40:41,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2211 transitions. [2022-07-21 10:40:41,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-21 10:40:41,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:41,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:41,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:41,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-21 10:40:41,844 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:41,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash 98495690, now seen corresponding path program 1 times [2022-07-21 10:40:41,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:41,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804874811] [2022-07-21 10:40:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:41,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:41,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:41,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:41,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804874811] [2022-07-21 10:40:41,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804874811] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:41,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787371611] [2022-07-21 10:40:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:41,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:41,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:41,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:41,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 10:40:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:42,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:42,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:42,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787371611] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:42,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:42,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007628622] [2022-07-21 10:40:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:42,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:42,403 INFO L87 Difference]: Start difference. First operand 1572 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:42,460 INFO L93 Difference]: Finished difference Result 1574 states and 2212 transitions. [2022-07-21 10:40:42,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-21 10:40:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:42,470 INFO L225 Difference]: With dead ends: 1574 [2022-07-21 10:40:42,470 INFO L226 Difference]: Without dead ends: 1571 [2022-07-21 10:40:42,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:42,473 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 942 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:42,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-07-21 10:40:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2022-07-21 10:40:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1114 states have (on average 1.3491921005385996) internal successors, (1503), 1142 states have internal predecessors, (1503), 355 states have call successors, (355), 102 states have call predecessors, (355), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2209 transitions. [2022-07-21 10:40:42,537 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2209 transitions. Word has length 36 [2022-07-21 10:40:42,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:42,537 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2209 transitions. [2022-07-21 10:40:42,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:42,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2209 transitions. [2022-07-21 10:40:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-21 10:40:42,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:42,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:42,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:42,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:42,752 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:42,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:42,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1241978982, now seen corresponding path program 1 times [2022-07-21 10:40:42,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:42,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944691524] [2022-07-21 10:40:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:42,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:42,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:42,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944691524] [2022-07-21 10:40:42,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944691524] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:42,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999013485] [2022-07-21 10:40:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:42,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:42,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:42,854 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:42,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 10:40:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:43,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:43,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:43,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:43,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999013485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:43,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:43,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:43,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73114248] [2022-07-21 10:40:43,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:43,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:43,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:43,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:43,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:43,264 INFO L87 Difference]: Start difference. First operand 1571 states and 2209 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:43,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:43,325 INFO L93 Difference]: Finished difference Result 1573 states and 2210 transitions. [2022-07-21 10:40:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:43,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-21 10:40:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:43,334 INFO L225 Difference]: With dead ends: 1573 [2022-07-21 10:40:43,335 INFO L226 Difference]: Without dead ends: 1570 [2022-07-21 10:40:43,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:43,338 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 939 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:43,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 972 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:43,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-21 10:40:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2022-07-21 10:40:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1114 states have (on average 1.3482944344703771) internal successors, (1502), 1141 states have internal predecessors, (1502), 354 states have call successors, (354), 102 states have call predecessors, (354), 101 states have return successors, (351), 351 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 10:40:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2207 transitions. [2022-07-21 10:40:43,412 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2207 transitions. Word has length 37 [2022-07-21 10:40:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:43,412 INFO L495 AbstractCegarLoop]: Abstraction has 1570 states and 2207 transitions. [2022-07-21 10:40:43,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2207 transitions. [2022-07-21 10:40:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 10:40:43,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:43,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:43,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:43,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:43,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:43,632 INFO L85 PathProgramCache]: Analyzing trace with hash 152984013, now seen corresponding path program 1 times [2022-07-21 10:40:43,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:43,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897695687] [2022-07-21 10:40:43,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:43,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:43,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:43,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897695687] [2022-07-21 10:40:43,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897695687] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:43,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795263701] [2022-07-21 10:40:43,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:43,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:43,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:43,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:43,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 10:40:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:44,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:44,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:44,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:44,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:44,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795263701] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:44,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:44,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-21 10:40:44,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395406910] [2022-07-21 10:40:44,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:44,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:44,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:44,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:44,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:44,156 INFO L87 Difference]: Start difference. First operand 1570 states and 2207 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:44,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:44,235 INFO L93 Difference]: Finished difference Result 2023 states and 2795 transitions. [2022-07-21 10:40:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:44,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-21 10:40:44,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:44,248 INFO L225 Difference]: With dead ends: 2023 [2022-07-21 10:40:44,248 INFO L226 Difference]: Without dead ends: 1986 [2022-07-21 10:40:44,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:44,250 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 869 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:44,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1505 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:44,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2022-07-21 10:40:44,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1986. [2022-07-21 10:40:44,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1382 states have (on average 1.3277858176555717) internal successors, (1835), 1417 states have internal predecessors, (1835), 457 states have call successors, (457), 147 states have call predecessors, (457), 146 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456) [2022-07-21 10:40:44,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2748 transitions. [2022-07-21 10:40:44,330 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2748 transitions. Word has length 38 [2022-07-21 10:40:44,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:44,330 INFO L495 AbstractCegarLoop]: Abstraction has 1986 states and 2748 transitions. [2022-07-21 10:40:44,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 10:40:44,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2748 transitions. [2022-07-21 10:40:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 10:40:44,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:44,334 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:44,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:44,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 10:40:44,559 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:44,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1358020866, now seen corresponding path program 1 times [2022-07-21 10:40:44,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:44,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572885356] [2022-07-21 10:40:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:44,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 10:40:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:40:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:40:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 10:40:44,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:44,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572885356] [2022-07-21 10:40:44,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572885356] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:44,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161902359] [2022-07-21 10:40:44,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:44,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:44,690 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:44,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 10:40:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:45,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:40:45,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:45,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:40:45,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161902359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:45,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:40:45,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-21 10:40:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510726627] [2022-07-21 10:40:45,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:45,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:40:45,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:40:45,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:40:45,093 INFO L87 Difference]: Start difference. First operand 1986 states and 2748 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:40:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:45,179 INFO L93 Difference]: Finished difference Result 3979 states and 5508 transitions. [2022-07-21 10:40:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:40:45,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2022-07-21 10:40:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:45,191 INFO L225 Difference]: With dead ends: 3979 [2022-07-21 10:40:45,192 INFO L226 Difference]: Without dead ends: 1996 [2022-07-21 10:40:45,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:40:45,200 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 9 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:45,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1854 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:40:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2022-07-21 10:40:45,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1988. [2022-07-21 10:40:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1384 states have (on average 1.3273121387283238) internal successors, (1837), 1419 states have internal predecessors, (1837), 457 states have call successors, (457), 147 states have call predecessors, (457), 146 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456) [2022-07-21 10:40:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2750 transitions. [2022-07-21 10:40:45,286 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2750 transitions. Word has length 67 [2022-07-21 10:40:45,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:45,286 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 2750 transitions. [2022-07-21 10:40:45,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:40:45,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2750 transitions. [2022-07-21 10:40:45,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 10:40:45,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:45,289 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:45,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:45,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:45,516 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:45,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash -192002445, now seen corresponding path program 1 times [2022-07-21 10:40:45,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:45,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562586536] [2022-07-21 10:40:45,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:45,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 10:40:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:40:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 10:40:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:45,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 10:40:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:45,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:45,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562586536] [2022-07-21 10:40:45,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562586536] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:40:45,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493568554] [2022-07-21 10:40:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:45,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:45,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:40:45,660 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:40:45,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 10:40:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:46,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:40:46,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:40:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:46,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:40:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 10:40:46,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493568554] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:40:46,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:40:46,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-07-21 10:40:46,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24875727] [2022-07-21 10:40:46,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:40:46,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 10:40:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 10:40:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:40:46,126 INFO L87 Difference]: Start difference. First operand 1988 states and 2750 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 10:40:50,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:40:52,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:40:55,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:40:56,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:40:56,103 INFO L93 Difference]: Finished difference Result 4075 states and 5651 transitions. [2022-07-21 10:40:56,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:40:56,103 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 71 [2022-07-21 10:40:56,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:40:56,115 INFO L225 Difference]: With dead ends: 4075 [2022-07-21 10:40:56,115 INFO L226 Difference]: Without dead ends: 2090 [2022-07-21 10:40:56,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:40:56,122 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 448 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 177 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:40:56,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1739 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1423 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2022-07-21 10:40:56,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-07-21 10:40:56,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2090. [2022-07-21 10:40:56,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 1468 states have (on average 1.3235694822888284) internal successors, (1943), 1503 states have internal predecessors, (1943), 475 states have call successors, (475), 147 states have call predecessors, (475), 146 states have return successors, (474), 474 states have call predecessors, (474), 474 states have call successors, (474) [2022-07-21 10:40:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2892 transitions. [2022-07-21 10:40:56,212 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2892 transitions. Word has length 71 [2022-07-21 10:40:56,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:40:56,212 INFO L495 AbstractCegarLoop]: Abstraction has 2090 states and 2892 transitions. [2022-07-21 10:40:56,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-21 10:40:56,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2892 transitions. [2022-07-21 10:40:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 10:40:56,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:40:56,215 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:40:56,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 10:40:56,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:40:56,440 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:40:56,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:40:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash -830434775, now seen corresponding path program 2 times [2022-07-21 10:40:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:40:56,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979661804] [2022-07-21 10:40:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:40:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:40:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:40:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 10:40:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:40:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:40:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:40:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 10:40:56,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:40:56,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979661804] [2022-07-21 10:40:56,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979661804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:40:56,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:40:56,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:40:56,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150221846] [2022-07-21 10:40:56,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:40:56,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:40:56,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:40:56,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:40:56,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:40:56,647 INFO L87 Difference]: Start difference. First operand 2090 states and 2892 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:41:00,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:02,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:05,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:05,802 INFO L93 Difference]: Finished difference Result 4567 states and 6401 transitions. [2022-07-21 10:41:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:41:05,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-07-21 10:41:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:05,817 INFO L225 Difference]: With dead ends: 4567 [2022-07-21 10:41:05,817 INFO L226 Difference]: Without dead ends: 2480 [2022-07-21 10:41:05,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:41:05,827 INFO L413 NwaCegarLoop]: 1108 mSDtfsCounter, 764 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 249 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 1680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:05,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 2281 Invalid, 1680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1429 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2022-07-21 10:41:05,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-07-21 10:41:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2094. [2022-07-21 10:41:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1472 states have (on average 1.3226902173913044) internal successors, (1947), 1507 states have internal predecessors, (1947), 475 states have call successors, (475), 147 states have call predecessors, (475), 146 states have return successors, (474), 474 states have call predecessors, (474), 474 states have call successors, (474) [2022-07-21 10:41:05,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2896 transitions. [2022-07-21 10:41:05,965 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2896 transitions. Word has length 86 [2022-07-21 10:41:05,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:05,966 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 2896 transitions. [2022-07-21 10:41:05,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:41:05,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2896 transitions. [2022-07-21 10:41:05,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 10:41:05,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:05,971 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:41:05,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 10:41:05,972 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:05,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash -477346393, now seen corresponding path program 1 times [2022-07-21 10:41:05,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:05,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39197399] [2022-07-21 10:41:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 10:41:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:41:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:41:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 10:41:06,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:06,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39197399] [2022-07-21 10:41:06,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39197399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:06,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:41:06,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:41:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164155852] [2022-07-21 10:41:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:41:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:41:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:41:06,134 INFO L87 Difference]: Start difference. First operand 2094 states and 2896 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:41:09,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:11,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:12,460 INFO L93 Difference]: Finished difference Result 4673 states and 6557 transitions. [2022-07-21 10:41:12,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:41:12,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2022-07-21 10:41:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:12,475 INFO L225 Difference]: With dead ends: 4673 [2022-07-21 10:41:12,475 INFO L226 Difference]: Without dead ends: 2582 [2022-07-21 10:41:12,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:41:12,484 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 583 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 161 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:12,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1932 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 817 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-07-21 10:41:12,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2582 states. [2022-07-21 10:41:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2582 to 2196. [2022-07-21 10:41:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1550 states have (on average 1.323225806451613) internal successors, (2051), 1585 states have internal predecessors, (2051), 499 states have call successors, (499), 147 states have call predecessors, (499), 146 states have return successors, (498), 498 states have call predecessors, (498), 498 states have call successors, (498) [2022-07-21 10:41:12,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 3048 transitions. [2022-07-21 10:41:12,592 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 3048 transitions. Word has length 86 [2022-07-21 10:41:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:12,592 INFO L495 AbstractCegarLoop]: Abstraction has 2196 states and 3048 transitions. [2022-07-21 10:41:12,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-21 10:41:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 3048 transitions. [2022-07-21 10:41:12,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 10:41:12,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:12,596 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:41:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 10:41:12,596 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -113690984, now seen corresponding path program 1 times [2022-07-21 10:41:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119261098] [2022-07-21 10:41:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 10:41:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:12,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 10:41:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:41:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 10:41:12,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:12,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119261098] [2022-07-21 10:41:12,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119261098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:12,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:41:12,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 10:41:12,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687809602] [2022-07-21 10:41:12,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:12,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:41:12,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:12,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:41:12,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:41:12,810 INFO L87 Difference]: Start difference. First operand 2196 states and 3048 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 10:41:20,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:24,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:26,621 INFO L93 Difference]: Finished difference Result 5230 states and 7492 transitions. [2022-07-21 10:41:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:41:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 96 [2022-07-21 10:41:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:26,641 INFO L225 Difference]: With dead ends: 5230 [2022-07-21 10:41:26,641 INFO L226 Difference]: Without dead ends: 3037 [2022-07-21 10:41:26,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:41:26,650 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 840 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 472 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 3399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:26,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 3520 Invalid, 3399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 2925 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-07-21 10:41:26,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-07-21 10:41:26,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2208. [2022-07-21 10:41:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1560 states have (on average 1.3211538461538461) internal successors, (2061), 1593 states have internal predecessors, (2061), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 502 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-21 10:41:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3076 transitions. [2022-07-21 10:41:26,824 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3076 transitions. Word has length 96 [2022-07-21 10:41:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:26,824 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 3076 transitions. [2022-07-21 10:41:26,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 10:41:26,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3076 transitions. [2022-07-21 10:41:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 10:41:26,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:26,828 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:41:26,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 10:41:26,828 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:26,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:26,829 INFO L85 PathProgramCache]: Analyzing trace with hash -140112062, now seen corresponding path program 1 times [2022-07-21 10:41:26,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:26,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113310482] [2022-07-21 10:41:26,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:26,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:41:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:41:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 10:41:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 10:41:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 10:41:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 10:41:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:27,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113310482] [2022-07-21 10:41:27,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113310482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:27,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:41:27,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 10:41:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985250249] [2022-07-21 10:41:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:27,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:41:27,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:27,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:41:27,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:41:27,048 INFO L87 Difference]: Start difference. First operand 2208 states and 3076 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 10:41:29,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:36,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:39,355 INFO L93 Difference]: Finished difference Result 5452 states and 7832 transitions. [2022-07-21 10:41:39,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:41:39,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 96 [2022-07-21 10:41:39,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:39,374 INFO L225 Difference]: With dead ends: 5452 [2022-07-21 10:41:39,374 INFO L226 Difference]: Without dead ends: 3247 [2022-07-21 10:41:39,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:41:39,382 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 870 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 516 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 3433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:39,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 3237 Invalid, 3433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 2915 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-07-21 10:41:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-07-21 10:41:39,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 2236. [2022-07-21 10:41:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 1588 states have (on average 1.3154911838790933) internal successors, (2089), 1607 states have internal predecessors, (2089), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-21 10:41:39,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 3104 transitions. [2022-07-21 10:41:39,538 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 3104 transitions. Word has length 96 [2022-07-21 10:41:39,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:39,538 INFO L495 AbstractCegarLoop]: Abstraction has 2236 states and 3104 transitions. [2022-07-21 10:41:39,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 10:41:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 3104 transitions. [2022-07-21 10:41:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 10:41:39,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:39,546 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:41:39,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 10:41:39,547 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:39,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2093842028, now seen corresponding path program 1 times [2022-07-21 10:41:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:39,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785884505] [2022-07-21 10:41:39,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:39,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:41:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:41:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:41:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:41:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:41:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:39,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 10:41:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:41:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:41:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:41:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:41:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:41:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:41:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:41:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:41:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-21 10:41:40,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:40,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785884505] [2022-07-21 10:41:40,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785884505] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:40,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:41:40,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:41:40,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882521063] [2022-07-21 10:41:40,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:40,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:41:40,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:40,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:41:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:41:40,216 INFO L87 Difference]: Start difference. First operand 2236 states and 3104 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 10:41:42,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:52,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:53,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:41:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:41:56,131 INFO L93 Difference]: Finished difference Result 5302 states and 7672 transitions. [2022-07-21 10:41:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 10:41:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2022-07-21 10:41:56,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:41:56,154 INFO L225 Difference]: With dead ends: 5302 [2022-07-21 10:41:56,154 INFO L226 Difference]: Without dead ends: 3069 [2022-07-21 10:41:56,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:41:56,162 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 1381 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 3561 mSolverCounterSat, 1192 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 4754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1192 IncrementalHoareTripleChecker+Valid, 3561 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:41:56,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 2572 Invalid, 4754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1192 Valid, 3561 Invalid, 1 Unknown, 0 Unchecked, 15.6s Time] [2022-07-21 10:41:56,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2022-07-21 10:41:56,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2240. [2022-07-21 10:41:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 1592 states have (on average 1.3146984924623115) internal successors, (2093), 1609 states have internal predecessors, (2093), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-21 10:41:56,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3108 transitions. [2022-07-21 10:41:56,335 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3108 transitions. Word has length 194 [2022-07-21 10:41:56,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:41:56,336 INFO L495 AbstractCegarLoop]: Abstraction has 2240 states and 3108 transitions. [2022-07-21 10:41:56,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 10:41:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3108 transitions. [2022-07-21 10:41:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-21 10:41:56,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:41:56,341 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:41:56,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 10:41:56,341 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:41:56,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:41:56,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1536816957, now seen corresponding path program 1 times [2022-07-21 10:41:56,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:41:56,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56860669] [2022-07-21 10:41:56,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:41:56,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:41:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:41:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:41:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:41:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:41:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:41:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:41:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:41:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 10:41:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:41:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:41:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:41:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:41:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:41:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:41:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:41:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 10:41:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-21 10:41:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 10:41:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:41:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-07-21 10:41:56,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:41:56,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56860669] [2022-07-21 10:41:56,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56860669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:41:56,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:41:56,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 10:41:56,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789745946] [2022-07-21 10:41:56,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:41:56,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 10:41:56,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:41:56,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 10:41:56,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:41:56,947 INFO L87 Difference]: Start difference. First operand 2240 states and 3108 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 10:41:59,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:06,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:10,532 INFO L93 Difference]: Finished difference Result 5280 states and 7634 transitions. [2022-07-21 10:42:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:42:10,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 205 [2022-07-21 10:42:10,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:10,548 INFO L225 Difference]: With dead ends: 5280 [2022-07-21 10:42:10,549 INFO L226 Difference]: Without dead ends: 3043 [2022-07-21 10:42:10,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:42:10,559 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 944 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 695 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:10,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 2076 Invalid, 3237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 2541 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-07-21 10:42:10,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-07-21 10:42:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2244. [2022-07-21 10:42:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1596 states have (on average 1.3139097744360901) internal successors, (2097), 1613 states have internal predecessors, (2097), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-21 10:42:10,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3112 transitions. [2022-07-21 10:42:10,752 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3112 transitions. Word has length 205 [2022-07-21 10:42:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:10,754 INFO L495 AbstractCegarLoop]: Abstraction has 2244 states and 3112 transitions. [2022-07-21 10:42:10,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (26), 8 states have call predecessors, (26), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 10:42:10,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3112 transitions. [2022-07-21 10:42:10,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-21 10:42:10,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:10,760 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:42:10,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 10:42:10,760 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash 392724425, now seen corresponding path program 1 times [2022-07-21 10:42:10,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:10,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195190860] [2022-07-21 10:42:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:10,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:42:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:42:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:42:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:42:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:42:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:42:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:42:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-21 10:42:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 10:42:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-21 10:42:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-07-21 10:42:11,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:11,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195190860] [2022-07-21 10:42:11,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195190860] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:11,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639817947] [2022-07-21 10:42:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:11,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:11,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:11,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:42:11,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 10:42:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:12,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:42:12,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-07-21 10:42:12,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:42:12,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639817947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:42:12,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:42:12,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-07-21 10:42:12,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349090289] [2022-07-21 10:42:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:42:12,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:42:12,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:42:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:42:12,470 INFO L87 Difference]: Start difference. First operand 2244 states and 3112 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 10:42:12,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:12,728 INFO L93 Difference]: Finished difference Result 4505 states and 6309 transitions. [2022-07-21 10:42:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:42:12,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 220 [2022-07-21 10:42:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:12,752 INFO L225 Difference]: With dead ends: 4505 [2022-07-21 10:42:12,753 INFO L226 Difference]: Without dead ends: 2264 [2022-07-21 10:42:12,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:42:12,767 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 3 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:12,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1861 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:42:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-07-21 10:42:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2249. [2022-07-21 10:42:12,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 1601 states have (on average 1.3129294191130543) internal successors, (2102), 1618 states have internal predecessors, (2102), 499 states have call successors, (499), 147 states have call predecessors, (499), 148 states have return successors, (516), 516 states have call predecessors, (516), 498 states have call successors, (516) [2022-07-21 10:42:12,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 3117 transitions. [2022-07-21 10:42:12,989 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 3117 transitions. Word has length 220 [2022-07-21 10:42:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:12,990 INFO L495 AbstractCegarLoop]: Abstraction has 2249 states and 3117 transitions. [2022-07-21 10:42:12,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-21 10:42:12,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 3117 transitions. [2022-07-21 10:42:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-21 10:42:12,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:12,997 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:42:13,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 10:42:13,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:13,216 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:13,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1250127915, now seen corresponding path program 1 times [2022-07-21 10:42:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:13,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784038619] [2022-07-21 10:42:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:42:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:42:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:42:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:42:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:42:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:42:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:42:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 10:42:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:42:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:42:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-21 10:42:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-21 10:42:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-21 10:42:14,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:14,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784038619] [2022-07-21 10:42:14,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784038619] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:14,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020660130] [2022-07-21 10:42:14,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:14,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:14,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:14,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:42:14,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 10:42:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:15,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:42:15,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 52 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-21 10:42:15,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:42:15,813 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-21 10:42:15,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020660130] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:42:15,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:42:15,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-07-21 10:42:15,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416568223] [2022-07-21 10:42:15,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:42:15,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 10:42:15,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:15,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 10:42:15,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:42:15,816 INFO L87 Difference]: Start difference. First operand 2249 states and 3117 transitions. Second operand has 16 states, 16 states have (on average 13.25) internal successors, (212), 9 states have internal predecessors, (212), 5 states have call successors, (62), 8 states have call predecessors, (62), 3 states have return successors, (55), 6 states have call predecessors, (55), 5 states have call successors, (55) [2022-07-21 10:42:18,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:31,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:35,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:38,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:41,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:42:43,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:42:43,892 INFO L93 Difference]: Finished difference Result 5387 states and 7959 transitions. [2022-07-21 10:42:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 10:42:43,892 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 9 states have internal predecessors, (212), 5 states have call successors, (62), 8 states have call predecessors, (62), 3 states have return successors, (55), 6 states have call predecessors, (55), 5 states have call successors, (55) Word has length 274 [2022-07-21 10:42:43,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:42:43,906 INFO L225 Difference]: With dead ends: 5387 [2022-07-21 10:42:43,907 INFO L226 Difference]: Without dead ends: 3141 [2022-07-21 10:42:43,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2022-07-21 10:42:43,916 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 1066 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 6514 mSolverCounterSat, 794 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 3792 SdHoareTripleChecker+Invalid, 7311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 6514 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:42:43,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 3792 Invalid, 7311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 6514 Invalid, 3 Unknown, 0 Unchecked, 27.5s Time] [2022-07-21 10:42:43,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2022-07-21 10:42:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2335. [2022-07-21 10:42:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1670 states have (on average 1.3107784431137726) internal successors, (2189), 1687 states have internal predecessors, (2189), 511 states have call successors, (511), 147 states have call predecessors, (511), 153 states have return successors, (552), 533 states have call predecessors, (552), 510 states have call successors, (552) [2022-07-21 10:42:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3252 transitions. [2022-07-21 10:42:44,085 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3252 transitions. Word has length 274 [2022-07-21 10:42:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:42:44,085 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3252 transitions. [2022-07-21 10:42:44,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.25) internal successors, (212), 9 states have internal predecessors, (212), 5 states have call successors, (62), 8 states have call predecessors, (62), 3 states have return successors, (55), 6 states have call predecessors, (55), 5 states have call successors, (55) [2022-07-21 10:42:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3252 transitions. [2022-07-21 10:42:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-21 10:42:44,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:42:44,094 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:42:44,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 10:42:44,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:44,320 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:42:44,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:42:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash -778281887, now seen corresponding path program 1 times [2022-07-21 10:42:44,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:42:44,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612185128] [2022-07-21 10:42:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:44,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:42:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:42:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:42:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:42:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:42:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:42:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:44,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:42:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 10:42:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:42:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 10:42:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 10:42:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:42:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:42:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 10:42:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:42:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:42:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:42:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:42:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:42:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:42:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:42:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:42:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:42:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:42:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:42:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:42:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-21 10:42:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-21 10:42:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-21 10:42:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-21 10:42:45,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:42:45,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612185128] [2022-07-21 10:42:45,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612185128] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:42:45,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923080755] [2022-07-21 10:42:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:42:45,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:42:45,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:42:45,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:42:45,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 10:42:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:42:46,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 4016 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 10:42:46,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:42:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 219 proven. 34 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-21 10:42:47,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:42:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-21 10:42:47,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923080755] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:42:47,896 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:42:47,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 16 [2022-07-21 10:42:47,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783176760] [2022-07-21 10:42:47,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:42:47,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-21 10:42:47,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:42:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-21 10:42:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:42:47,901 INFO L87 Difference]: Start difference. First operand 2335 states and 3252 transitions. Second operand has 16 states, 16 states have (on average 15.5625) internal successors, (249), 9 states have internal predecessors, (249), 6 states have call successors, (83), 8 states have call predecessors, (83), 3 states have return successors, (77), 7 states have call predecessors, (77), 6 states have call successors, (77) [2022-07-21 10:42:50,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:43:07,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:43:14,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:14,866 INFO L93 Difference]: Finished difference Result 5515 states and 8143 transitions. [2022-07-21 10:43:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 10:43:14,866 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.5625) internal successors, (249), 9 states have internal predecessors, (249), 6 states have call successors, (83), 8 states have call predecessors, (83), 3 states have return successors, (77), 7 states have call predecessors, (77), 6 states have call successors, (77) Word has length 379 [2022-07-21 10:43:14,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:14,881 INFO L225 Difference]: With dead ends: 5515 [2022-07-21 10:43:14,881 INFO L226 Difference]: Without dead ends: 3183 [2022-07-21 10:43:14,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 872 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2022-07-21 10:43:14,887 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 1099 mSDsluCounter, 3144 mSDsCounter, 0 mSdLazyCounter, 7031 mSolverCounterSat, 794 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 7827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 7031 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:14,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 3985 Invalid, 7827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 7031 Invalid, 2 Unknown, 0 Unchecked, 26.3s Time] [2022-07-21 10:43:14,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2022-07-21 10:43:15,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 2367. [2022-07-21 10:43:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 1698 states have (on average 1.3091872791519434) internal successors, (2223), 1710 states have internal predecessors, (2223), 515 states have call successors, (515), 147 states have call predecessors, (515), 153 states have return successors, (556), 542 states have call predecessors, (556), 514 states have call successors, (556) [2022-07-21 10:43:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3294 transitions. [2022-07-21 10:43:15,049 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3294 transitions. Word has length 379 [2022-07-21 10:43:15,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:15,049 INFO L495 AbstractCegarLoop]: Abstraction has 2367 states and 3294 transitions. [2022-07-21 10:43:15,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.5625) internal successors, (249), 9 states have internal predecessors, (249), 6 states have call successors, (83), 8 states have call predecessors, (83), 3 states have return successors, (77), 7 states have call predecessors, (77), 6 states have call successors, (77) [2022-07-21 10:43:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3294 transitions. [2022-07-21 10:43:15,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-07-21 10:43:15,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:15,058 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:15,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:15,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-21 10:43:15,272 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash -620402375, now seen corresponding path program 1 times [2022-07-21 10:43:15,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:15,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280564111] [2022-07-21 10:43:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:15,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:43:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:43:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 10:43:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:43:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:43:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 10:43:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 10:43:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-21 10:43:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-07-21 10:43:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-21 10:43:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-21 10:43:16,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:16,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280564111] [2022-07-21 10:43:16,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280564111] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:16,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444330801] [2022-07-21 10:43:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:16,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:16,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:16,399 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:16,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 10:43:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:17,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 4002 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:43:17,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-07-21 10:43:17,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:17,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444330801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:17,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:17,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-07-21 10:43:17,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352049728] [2022-07-21 10:43:17,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:17,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:43:17,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:17,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:43:17,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:43:17,764 INFO L87 Difference]: Start difference. First operand 2367 states and 3294 transitions. Second operand has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 10:43:17,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:17,960 INFO L93 Difference]: Finished difference Result 4865 states and 6839 transitions. [2022-07-21 10:43:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:43:17,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 392 [2022-07-21 10:43:17,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:17,974 INFO L225 Difference]: With dead ends: 4865 [2022-07-21 10:43:17,974 INFO L226 Difference]: Without dead ends: 2501 [2022-07-21 10:43:17,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:43:17,981 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 19 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:17,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4717 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:43:17,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2022-07-21 10:43:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2477. [2022-07-21 10:43:18,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1786 states have (on average 1.3073908174692048) internal successors, (2335), 1798 states have internal predecessors, (2335), 535 states have call successors, (535), 147 states have call predecessors, (535), 155 states have return successors, (580), 564 states have call predecessors, (580), 534 states have call successors, (580) [2022-07-21 10:43:18,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3450 transitions. [2022-07-21 10:43:18,201 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3450 transitions. Word has length 392 [2022-07-21 10:43:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:18,202 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3450 transitions. [2022-07-21 10:43:18,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.0) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 10:43:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3450 transitions. [2022-07-21 10:43:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-21 10:43:18,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:18,214 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:18,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:18,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-21 10:43:18,436 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 23033313, now seen corresponding path program 1 times [2022-07-21 10:43:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:18,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747541023] [2022-07-21 10:43:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:43:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:43:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 10:43:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:43:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:43:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:43:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 10:43:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-21 10:43:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:43:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:43:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2022-07-21 10:43:19,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:19,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747541023] [2022-07-21 10:43:19,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747541023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:19,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:43:19,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 10:43:19,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945681634] [2022-07-21 10:43:19,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:19,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 10:43:19,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:19,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 10:43:19,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:43:19,384 INFO L87 Difference]: Start difference. First operand 2477 states and 3450 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-21 10:43:21,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:43:29,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:43:30,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:43:33,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:33,002 INFO L93 Difference]: Finished difference Result 5731 states and 8294 transitions. [2022-07-21 10:43:33,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:43:33,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 395 [2022-07-21 10:43:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:33,017 INFO L225 Difference]: With dead ends: 5731 [2022-07-21 10:43:33,017 INFO L226 Difference]: Without dead ends: 3257 [2022-07-21 10:43:33,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:43:33,025 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 975 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2723 mSolverCounterSat, 709 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 3433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 709 IncrementalHoareTripleChecker+Valid, 2723 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:33,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 2245 Invalid, 3433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [709 Valid, 2723 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-07-21 10:43:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2022-07-21 10:43:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2461. [2022-07-21 10:43:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 1770 states have (on average 1.3) internal successors, (2301), 1782 states have internal predecessors, (2301), 535 states have call successors, (535), 147 states have call predecessors, (535), 155 states have return successors, (580), 564 states have call predecessors, (580), 534 states have call successors, (580) [2022-07-21 10:43:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 3416 transitions. [2022-07-21 10:43:33,190 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 3416 transitions. Word has length 395 [2022-07-21 10:43:33,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:33,190 INFO L495 AbstractCegarLoop]: Abstraction has 2461 states and 3416 transitions. [2022-07-21 10:43:33,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-21 10:43:33,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 3416 transitions. [2022-07-21 10:43:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2022-07-21 10:43:33,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:33,196 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:33,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 10:43:33,196 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1829409705, now seen corresponding path program 1 times [2022-07-21 10:43:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:33,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840798621] [2022-07-21 10:43:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:43:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:43:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 10:43:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:43:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:43:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 10:43:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 10:43:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-21 10:43:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-21 10:43:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-07-21 10:43:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2022-07-21 10:43:34,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:34,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840798621] [2022-07-21 10:43:34,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840798621] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:34,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627838719] [2022-07-21 10:43:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:34,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:34,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:34,229 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:34,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 10:43:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:35,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 3986 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:43:35,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:35,722 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2022-07-21 10:43:35,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:35,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627838719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:35,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:35,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-07-21 10:43:35,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140710873] [2022-07-21 10:43:35,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:35,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:43:35,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:43:35,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:43:35,724 INFO L87 Difference]: Start difference. First operand 2461 states and 3416 transitions. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 10:43:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:35,963 INFO L93 Difference]: Finished difference Result 4929 states and 6875 transitions. [2022-07-21 10:43:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:43:35,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 390 [2022-07-21 10:43:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:35,972 INFO L225 Difference]: With dead ends: 4929 [2022-07-21 10:43:35,972 INFO L226 Difference]: Without dead ends: 2471 [2022-07-21 10:43:35,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:35,977 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 12 mSDsluCounter, 3756 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4701 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:35,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4701 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:43:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2022-07-21 10:43:36,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2465. [2022-07-21 10:43:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2465 states, 1774 states have (on average 1.2993235625704622) internal successors, (2305), 1784 states have internal predecessors, (2305), 535 states have call successors, (535), 147 states have call predecessors, (535), 155 states have return successors, (580), 566 states have call predecessors, (580), 534 states have call successors, (580) [2022-07-21 10:43:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 3420 transitions. [2022-07-21 10:43:36,126 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 3420 transitions. Word has length 390 [2022-07-21 10:43:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:36,129 INFO L495 AbstractCegarLoop]: Abstraction has 2465 states and 3420 transitions. [2022-07-21 10:43:36,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 5 states have internal predecessors, (160), 3 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2022-07-21 10:43:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 3420 transitions. [2022-07-21 10:43:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-21 10:43:36,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:36,134 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:36,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:36,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-21 10:43:36,359 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:36,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1590333038, now seen corresponding path program 1 times [2022-07-21 10:43:36,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:36,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424961375] [2022-07-21 10:43:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:36,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:43:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:43:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:43:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:43:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:43:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:43:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 10:43:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-21 10:43:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:43:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:43:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-07-21 10:43:37,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:37,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424961375] [2022-07-21 10:43:37,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424961375] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:37,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195347929] [2022-07-21 10:43:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:37,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:37,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:37,362 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:37,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 10:43:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:38,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 4006 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:43:38,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-07-21 10:43:38,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:38,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195347929] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:38,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:38,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-21 10:43:38,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004266141] [2022-07-21 10:43:38,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:38,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:43:38,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:38,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:43:38,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:38,976 INFO L87 Difference]: Start difference. First operand 2465 states and 3420 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:39,154 INFO L93 Difference]: Finished difference Result 5380 states and 7562 transitions. [2022-07-21 10:43:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:43:39,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 395 [2022-07-21 10:43:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:39,163 INFO L225 Difference]: With dead ends: 5380 [2022-07-21 10:43:39,163 INFO L226 Difference]: Without dead ends: 2918 [2022-07-21 10:43:39,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:39,170 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 226 mSDsluCounter, 5913 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:39,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 7150 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:43:39,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-07-21 10:43:39,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 2475. [2022-07-21 10:43:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 1780 states have (on average 1.298314606741573) internal successors, (2311), 1792 states have internal predecessors, (2311), 535 states have call successors, (535), 147 states have call predecessors, (535), 159 states have return successors, (602), 568 states have call predecessors, (602), 534 states have call successors, (602) [2022-07-21 10:43:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3448 transitions. [2022-07-21 10:43:39,322 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3448 transitions. Word has length 395 [2022-07-21 10:43:39,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:39,323 INFO L495 AbstractCegarLoop]: Abstraction has 2475 states and 3448 transitions. [2022-07-21 10:43:39,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 5 states have internal predecessors, (142), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:39,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3448 transitions. [2022-07-21 10:43:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-21 10:43:39,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:39,329 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:39,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:39,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-21 10:43:39,544 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:39,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:39,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1310116172, now seen corresponding path program 1 times [2022-07-21 10:43:39,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:39,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844425540] [2022-07-21 10:43:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:39,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:43:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:43:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:43:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:43:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:43:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:43:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 10:43:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-21 10:43:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-21 10:43:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-21 10:43:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2022-07-21 10:43:40,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:40,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844425540] [2022-07-21 10:43:40,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844425540] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:40,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633399153] [2022-07-21 10:43:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:40,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:40,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:40,513 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:40,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-21 10:43:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:42,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 4022 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:43:42,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2022-07-21 10:43:42,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:42,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633399153] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:42,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:42,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-21 10:43:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873606724] [2022-07-21 10:43:42,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:42,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:43:42,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:43:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:42,491 INFO L87 Difference]: Start difference. First operand 2475 states and 3448 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:42,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:42,729 INFO L93 Difference]: Finished difference Result 5404 states and 7620 transitions. [2022-07-21 10:43:42,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:43:42,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 397 [2022-07-21 10:43:42,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:42,744 INFO L225 Difference]: With dead ends: 5404 [2022-07-21 10:43:42,744 INFO L226 Difference]: Without dead ends: 2932 [2022-07-21 10:43:42,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:42,753 INFO L413 NwaCegarLoop]: 1252 mSDtfsCounter, 226 mSDsluCounter, 5974 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:42,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 7226 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:43:42,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2022-07-21 10:43:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 2477. [2022-07-21 10:43:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1782 states have (on average 1.297979797979798) internal successors, (2313), 1792 states have internal predecessors, (2313), 535 states have call successors, (535), 147 states have call predecessors, (535), 159 states have return successors, (602), 570 states have call predecessors, (602), 534 states have call successors, (602) [2022-07-21 10:43:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3450 transitions. [2022-07-21 10:43:42,994 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3450 transitions. Word has length 397 [2022-07-21 10:43:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:42,995 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3450 transitions. [2022-07-21 10:43:42,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3450 transitions. [2022-07-21 10:43:43,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-07-21 10:43:43,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:43,000 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:43,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:43,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:43,228 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:43,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1137766890, now seen corresponding path program 1 times [2022-07-21 10:43:43,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:43,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081818712] [2022-07-21 10:43:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:43,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:43:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:43:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:43:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:43:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:43:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:43:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:43:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:43:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 10:43:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:43,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-21 10:43:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:43:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:43:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2022-07-21 10:43:44,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:44,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081818712] [2022-07-21 10:43:44,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081818712] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:44,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911110471] [2022-07-21 10:43:44,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:44,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:44,180 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:44,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-21 10:43:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:45,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 4012 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:43:45,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-07-21 10:43:46,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:46,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911110471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:46,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:46,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-21 10:43:46,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099681771] [2022-07-21 10:43:46,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:46,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:43:46,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:46,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:43:46,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:46,030 INFO L87 Difference]: Start difference. First operand 2477 states and 3450 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:46,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:46,289 INFO L93 Difference]: Finished difference Result 5610 states and 7956 transitions. [2022-07-21 10:43:46,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:43:46,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 395 [2022-07-21 10:43:46,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:46,341 INFO L225 Difference]: With dead ends: 5610 [2022-07-21 10:43:46,341 INFO L226 Difference]: Without dead ends: 3136 [2022-07-21 10:43:46,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:43:46,350 INFO L413 NwaCegarLoop]: 1247 mSDtfsCounter, 245 mSDsluCounter, 5950 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 7197 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:46,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 7197 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:43:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2022-07-21 10:43:46,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 2477. [2022-07-21 10:43:46,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 1782 states have (on average 1.297979797979798) internal successors, (2313), 1792 states have internal predecessors, (2313), 535 states have call successors, (535), 147 states have call predecessors, (535), 159 states have return successors, (602), 570 states have call predecessors, (602), 534 states have call successors, (602) [2022-07-21 10:43:46,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3450 transitions. [2022-07-21 10:43:46,493 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3450 transitions. Word has length 395 [2022-07-21 10:43:46,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:46,494 INFO L495 AbstractCegarLoop]: Abstraction has 2477 states and 3450 transitions. [2022-07-21 10:43:46,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3450 transitions. [2022-07-21 10:43:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-07-21 10:43:46,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:46,500 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:46,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:46,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-21 10:43:46,728 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:46,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash -816612432, now seen corresponding path program 1 times [2022-07-21 10:43:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:46,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297285588] [2022-07-21 10:43:46,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:46,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:46,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:43:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:43:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:43:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:43:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:43:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:43:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:43:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:43:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 10:43:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-21 10:43:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-21 10:43:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-21 10:43:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:47,584 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2022-07-21 10:43:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:47,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297285588] [2022-07-21 10:43:47,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297285588] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:47,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326770433] [2022-07-21 10:43:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:47,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:47,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:47,586 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:47,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-21 10:43:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:49,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 4028 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:43:49,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 738 trivial. 0 not checked. [2022-07-21 10:43:49,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:49,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326770433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:49,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:49,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-07-21 10:43:49,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706335924] [2022-07-21 10:43:49,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:49,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:43:49,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:43:49,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:43:49,573 INFO L87 Difference]: Start difference. First operand 2477 states and 3450 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:49,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:49,769 INFO L93 Difference]: Finished difference Result 5648 states and 7994 transitions. [2022-07-21 10:43:49,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:43:49,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 397 [2022-07-21 10:43:49,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:49,777 INFO L225 Difference]: With dead ends: 5648 [2022-07-21 10:43:49,778 INFO L226 Difference]: Without dead ends: 3174 [2022-07-21 10:43:49,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:43:49,783 INFO L413 NwaCegarLoop]: 1246 mSDtfsCounter, 245 mSDsluCounter, 5945 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 7191 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:49,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 7191 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:43:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2022-07-21 10:43:49,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 2473. [2022-07-21 10:43:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 1780 states have (on average 1.298314606741573) internal successors, (2311), 1788 states have internal predecessors, (2311), 535 states have call successors, (535), 147 states have call predecessors, (535), 157 states have return successors, (584), 570 states have call predecessors, (584), 534 states have call successors, (584) [2022-07-21 10:43:49,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3430 transitions. [2022-07-21 10:43:49,973 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3430 transitions. Word has length 397 [2022-07-21 10:43:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:49,974 INFO L495 AbstractCegarLoop]: Abstraction has 2473 states and 3430 transitions. [2022-07-21 10:43:49,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 10:43:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3430 transitions. [2022-07-21 10:43:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 773 [2022-07-21 10:43:49,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:49,982 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 23, 23, 23, 23, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:50,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-21 10:43:50,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-21 10:43:50,196 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:50,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:50,196 INFO L85 PathProgramCache]: Analyzing trace with hash 571448748, now seen corresponding path program 1 times [2022-07-21 10:43:50,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:50,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627195291] [2022-07-21 10:43:50,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:50,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:43:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:43:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:43:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:43:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:43:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:43:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 10:43:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:43:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 10:43:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:43:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2022-07-21 10:43:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 747 [2022-07-21 10:43:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 754 [2022-07-21 10:43:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 760 [2022-07-21 10:43:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2022-07-21 10:43:51,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627195291] [2022-07-21 10:43:51,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627195291] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:51,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539841541] [2022-07-21 10:43:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:51,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:51,852 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:51,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-21 10:43:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:54,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 6486 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:43:54,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:43:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 1854 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-07-21 10:43:54,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:43:54,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539841541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:43:54,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:43:54,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-21 10:43:54,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508507462] [2022-07-21 10:43:54,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:43:54,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:43:54,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:43:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:43:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:43:54,286 INFO L87 Difference]: Start difference. First operand 2473 states and 3430 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-21 10:43:56,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:43:56,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:43:56,432 INFO L93 Difference]: Finished difference Result 4967 states and 6915 transitions. [2022-07-21 10:43:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:43:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 772 [2022-07-21 10:43:56,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:43:56,439 INFO L225 Difference]: With dead ends: 4967 [2022-07-21 10:43:56,439 INFO L226 Difference]: Without dead ends: 2497 [2022-07-21 10:43:56,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 1014 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:43:56,444 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 5 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:43:56,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1872 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 10:43:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2022-07-21 10:43:56,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2481. [2022-07-21 10:43:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 1788 states have (on average 1.2969798657718121) internal successors, (2319), 1796 states have internal predecessors, (2319), 535 states have call successors, (535), 147 states have call predecessors, (535), 157 states have return successors, (584), 570 states have call predecessors, (584), 534 states have call successors, (584) [2022-07-21 10:43:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3438 transitions. [2022-07-21 10:43:56,563 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3438 transitions. Word has length 772 [2022-07-21 10:43:56,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:43:56,564 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3438 transitions. [2022-07-21 10:43:56,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-21 10:43:56,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3438 transitions. [2022-07-21 10:43:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2022-07-21 10:43:56,572 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:43:56,573 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 23, 23, 23, 23, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:43:56,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-07-21 10:43:56,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-21 10:43:56,787 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:43:56,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:43:56,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1366406414, now seen corresponding path program 1 times [2022-07-21 10:43:56,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:43:56,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564267716] [2022-07-21 10:43:56,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:56,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:43:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:43:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:43:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:43:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:43:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:43:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:43:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:43:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:43:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:43:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:43:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 10:43:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:57,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:43:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 10:43:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 10:43:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 10:43:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:43:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:43:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:43:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:43:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:43:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:43:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:43:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:43:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:43:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:43:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2022-07-21 10:43:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2022-07-21 10:43:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2022-07-21 10:43:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:43:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2022-07-21 10:43:58,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:43:58,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564267716] [2022-07-21 10:43:58,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564267716] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:43:58,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811695203] [2022-07-21 10:43:58,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:43:58,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:43:58,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:43:58,439 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:43:58,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-21 10:44:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:00,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 6473 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:44:00,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:44:00,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 1857 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2022-07-21 10:44:00,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:44:00,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811695203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:44:00,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:44:00,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-07-21 10:44:00,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345861820] [2022-07-21 10:44:00,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:44:00,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:44:00,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:44:00,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:44:00,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:44:00,940 INFO L87 Difference]: Start difference. First operand 2481 states and 3438 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-21 10:44:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:44:01,157 INFO L93 Difference]: Finished difference Result 4995 states and 6961 transitions. [2022-07-21 10:44:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:44:01,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 773 [2022-07-21 10:44:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:44:01,166 INFO L225 Difference]: With dead ends: 4995 [2022-07-21 10:44:01,166 INFO L226 Difference]: Without dead ends: 2517 [2022-07-21 10:44:01,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1025 GetRequests, 1015 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:44:01,173 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 9 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:44:01,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1865 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:44:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2022-07-21 10:44:01,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2505. [2022-07-21 10:44:01,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 1812 states have (on average 1.2996688741721854) internal successors, (2355), 1820 states have internal predecessors, (2355), 535 states have call successors, (535), 147 states have call predecessors, (535), 157 states have return successors, (584), 570 states have call predecessors, (584), 534 states have call successors, (584) [2022-07-21 10:44:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3474 transitions. [2022-07-21 10:44:01,344 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3474 transitions. Word has length 773 [2022-07-21 10:44:01,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:44:01,345 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3474 transitions. [2022-07-21 10:44:01,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-21 10:44:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3474 transitions. [2022-07-21 10:44:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2022-07-21 10:44:01,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:44:01,353 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 23, 23, 23, 23, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:44:01,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-21 10:44:01,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:44:01,576 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:44:01,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:44:01,576 INFO L85 PathProgramCache]: Analyzing trace with hash -766575608, now seen corresponding path program 1 times [2022-07-21 10:44:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:44:01,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304197454] [2022-07-21 10:44:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:44:01,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:44:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 10:44:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 10:44:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:02,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:44:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:44:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:44:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 10:44:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:44:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 10:44:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 10:44:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:44:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 10:44:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:44:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:44:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:44:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:44:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:44:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:44:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:44:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:44:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:44:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:44:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 10:44:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 10:44:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:44:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:44:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:44:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:44:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:44:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:44:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:44:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:44:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:44:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 10:44:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:02,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:44:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:44:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:44:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:44:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 10:44:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 10:44:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 10:44:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 10:44:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:44:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 10:44:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:44:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:44:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 10:44:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 10:44:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 750 [2022-07-21 10:44:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 757 [2022-07-21 10:44:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2022-07-21 10:44:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2022-07-21 10:44:03,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:44:03,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304197454] [2022-07-21 10:44:03,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304197454] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:44:03,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978602854] [2022-07-21 10:44:03,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:44:03,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:44:03,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:44:03,212 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:44:03,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-21 10:44:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:44:05,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 6483 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:44:05,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:44:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 1854 proven. 2 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2022-07-21 10:44:06,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:44:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3609 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 3581 trivial. 0 not checked. [2022-07-21 10:44:07,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978602854] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:44:07,567 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:44:07,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 17 [2022-07-21 10:44:07,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325639369] [2022-07-21 10:44:07,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:44:07,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 10:44:07,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:44:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 10:44:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:44:07,570 INFO L87 Difference]: Start difference. First operand 2505 states and 3474 transitions. Second operand has 17 states, 17 states have (on average 15.176470588235293) internal successors, (258), 8 states have internal predecessors, (258), 5 states have call successors, (83), 9 states have call predecessors, (83), 5 states have return successors, (72), 7 states have call predecessors, (72), 5 states have call successors, (72) [2022-07-21 10:44:10,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []