./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.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 25e54376eacb2d0548e63287dfbc7c840529d47c5fe4674c2562ee16254781b6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:10:02,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:10:02,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:10:02,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:10:02,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:10:02,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:10:02,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:10:02,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:10:02,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:10:02,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:10:02,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:10:02,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:10:02,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:10:02,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:10:02,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:10:02,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:10:02,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:10:02,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:10:02,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:10:02,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:10:02,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:10:02,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:10:02,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:10:02,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:10:02,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:10:02,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:10:02,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:10:02,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:10:02,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:10:02,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:10:02,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:10:02,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:10:02,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:10:02,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:10:02,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:10:02,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:10:02,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:10:02,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:10:02,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:10:02,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:10:02,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:10:02,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:10:02,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:10:02,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:10:02,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:10:02,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:10:02,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:10:02,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:10:02,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:10:02,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:10:02,212 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:10:02,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:10:02,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:10:02,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:10:02,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:10:02,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:10:02,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:10:02,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:10:02,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:10:02,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:10:02,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:10:02,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:10:02,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:10:02,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:10:02,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:10:02,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:10:02,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:10:02,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:10:02,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:10:02,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:10:02,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:10:02,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:10:02,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25e54376eacb2d0548e63287dfbc7c840529d47c5fe4674c2562ee16254781b6 [2021-12-28 04:10:02,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:10:02,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:10:02,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:10:02,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:10:02,541 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:10:02,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2021-12-28 04:10:02,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/825d93f72/b34d268071f84e3e9894e5b040031c17/FLAG403f349d7 [2021-12-28 04:10:03,306 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:10:03,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2021-12-28 04:10:03,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/825d93f72/b34d268071f84e3e9894e5b040031c17/FLAG403f349d7 [2021-12-28 04:10:03,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/825d93f72/b34d268071f84e3e9894e5b040031c17 [2021-12-28 04:10:03,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:10:03,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:10:03,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:10:03,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:10:03,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:10:03,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:10:03" (1/1) ... [2021-12-28 04:10:03,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748349e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:03, skipping insertion in model container [2021-12-28 04:10:03,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:10:03" (1/1) ... [2021-12-28 04:10:03,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:10:03,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:10:04,561 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i[133750,133763] [2021-12-28 04:10:04,575 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-28 04:10:04,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:10:04,610 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:10:04,801 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i[133750,133763] [2021-12-28 04:10:04,807 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-28 04:10:04,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:10:04,893 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:10:04,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04 WrapperNode [2021-12-28 04:10:04,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:10:04,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:10:04,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:10:04,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:10:04,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:04,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,066 INFO L137 Inliner]: procedures = 189, calls = 838, calls flagged for inlining = 80, calls inlined = 60, statements flattened = 1698 [2021-12-28 04:10:05,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:10:05,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:10:05,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:10:05,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:10:05,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:10:05,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:10:05,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:10:05,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:10:05,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (1/1) ... [2021-12-28 04:10:05,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:10:05,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:10:05,236 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) [2021-12-28 04:10:05,251 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 [2021-12-28 04:10:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drv [2021-12-28 04:10:05,275 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drv [2021-12-28 04:10:05,275 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_destroy_port [2021-12-28 04:10:05,275 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_destroy_port [2021-12-28 04:10:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-28 04:10:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2021-12-28 04:10:05,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2021-12-28 04:10:05,276 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_add_port [2021-12-28 04:10:05,277 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_add_port [2021-12-28 04:10:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:10:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:10:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_bus_match [2021-12-28 04:10:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_bus_match [2021-12-28 04:10:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:10:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:10:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:10:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:10:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:10:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-28 04:10:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-28 04:10:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-28 04:10:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2021-12-28 04:10:05,279 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2021-12-28 04:10:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_probe [2021-12-28 04:10:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_probe [2021-12-28 04:10:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:10:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:10:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ns [2021-12-28 04:10:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ns [2021-12-28 04:10:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure old_gameport_measure_speed [2021-12-28 04:10:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure old_gameport_measure_speed [2021-12-28 04:10:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-28 04:10:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-28 04:10:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:10:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:10:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2021-12-28 04:10:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2021-12-28 04:10:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2021-12-28 04:10:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2021-12-28 04:10:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:10:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-12-28 04:10:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-12-28 04:10:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_remove [2021-12-28 04:10:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_remove [2021-12-28 04:10:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure device_release_driver [2021-12-28 04:10:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure device_release_driver [2021-12-28 04:10:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:10:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:10:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:10:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:10:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-12-28 04:10:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-12-28 04:10:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure description_show [2021-12-28 04:10:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure description_show [2021-12-28 04:10:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_find_driver [2021-12-28 04:10:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_find_driver [2021-12-28 04:10:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:10:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:10:05,287 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_disconnect_port [2021-12-28 04:10:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_disconnect_port [2021-12-28 04:10:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:10:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:10:05,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:10:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:10:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:10:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2021-12-28 04:10:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2021-12-28 04:10:05,289 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2021-12-28 04:10:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2021-12-28 04:10:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:10:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:10:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_remove_pending_events [2021-12-28 04:10:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_remove_pending_events [2021-12-28 04:10:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:10:05,290 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_event [2021-12-28 04:10:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_event [2021-12-28 04:10:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:10:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:10:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:10:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:10:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:10:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-28 04:10:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-28 04:10:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:10:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:10:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-12-28 04:10:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-12-28 04:10:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:10:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 04:10:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:10:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 04:10:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:10:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:10:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-28 04:10:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-28 04:10:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:10:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2021-12-28 04:10:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2021-12-28 04:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_measure_speed [2021-12-28 04:10:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_measure_speed [2021-12-28 04:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2021-12-28 04:10:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2021-12-28 04:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-28 04:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:10:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:10:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:10:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2021-12-28 04:10:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2021-12-28 04:10:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:10:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:10:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_handle_events [2021-12-28 04:10:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_handle_events [2021-12-28 04:10:05,708 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:10:05,717 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:10:06,078 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:10:09,093 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:10:09,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:10:09,110 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:10:09,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:10:09 BoogieIcfgContainer [2021-12-28 04:10:09,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:10:09,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:10:09,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:10:09,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:10:09,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:10:03" (1/3) ... [2021-12-28 04:10:09,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df7ae58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:10:09, skipping insertion in model container [2021-12-28 04:10:09,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:10:04" (2/3) ... [2021-12-28 04:10:09,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df7ae58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:10:09, skipping insertion in model container [2021-12-28 04:10:09,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:10:09" (3/3) ... [2021-12-28 04:10:09,123 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2021-12-28 04:10:09,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:10:09,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:10:09,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:10:09,184 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:10:09,184 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:10:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 692 states, 481 states have (on average 1.3513513513513513) internal successors, (650), 506 states have internal predecessors, (650), 155 states have call successors, (155), 55 states have call predecessors, (155), 54 states have return successors, (147), 141 states have call predecessors, (147), 147 states have call successors, (147) [2021-12-28 04:10:09,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-28 04:10:09,246 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:09,247 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:10:09,247 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:09,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:09,252 INFO L85 PathProgramCache]: Analyzing trace with hash 25194421, now seen corresponding path program 1 times [2021-12-28 04:10:09,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:09,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095027476] [2021-12-28 04:10:09,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:09,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:10,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:10,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:10:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:10,066 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-28 04:10:10,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:10,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095027476] [2021-12-28 04:10:10,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095027476] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:10,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:10,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:10:10,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277197967] [2021-12-28 04:10:10,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:10,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:10:10,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:10,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:10:10,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:10:10,109 INFO L87 Difference]: Start difference. First operand has 692 states, 481 states have (on average 1.3513513513513513) internal successors, (650), 506 states have internal predecessors, (650), 155 states have call successors, (155), 55 states have call predecessors, (155), 54 states have return successors, (147), 141 states have call predecessors, (147), 147 states have call successors, (147) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:10:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:11,430 INFO L93 Difference]: Finished difference Result 1672 states and 2492 transitions. [2021-12-28 04:10:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:10:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 191 [2021-12-28 04:10:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:11,460 INFO L225 Difference]: With dead ends: 1672 [2021-12-28 04:10:11,460 INFO L226 Difference]: Without dead ends: 964 [2021-12-28 04:10:11,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:10:11,475 INFO L933 BasicCegarLoop]: 923 mSDtfsCounter, 487 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 2204 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:11,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 2204 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 04:10:11,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2021-12-28 04:10:11,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 671. [2021-12-28 04:10:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 470 states have (on average 1.323404255319149) internal successors, (622), 485 states have internal predecessors, (622), 147 states have call successors, (147), 54 states have call predecessors, (147), 53 states have return successors, (145), 139 states have call predecessors, (145), 145 states have call successors, (145) [2021-12-28 04:10:11,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 914 transitions. [2021-12-28 04:10:11,605 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 914 transitions. Word has length 191 [2021-12-28 04:10:11,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:11,605 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 914 transitions. [2021-12-28 04:10:11,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:10:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 914 transitions. [2021-12-28 04:10:11,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-28 04:10:11,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:11,613 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:10:11,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:10:11,613 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:11,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:11,614 INFO L85 PathProgramCache]: Analyzing trace with hash 580733729, now seen corresponding path program 1 times [2021-12-28 04:10:11,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:11,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760868780] [2021-12-28 04:10:11,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:11,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:10:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-28 04:10:12,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:12,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760868780] [2021-12-28 04:10:12,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760868780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:12,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:12,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:10:12,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792377934] [2021-12-28 04:10:12,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:12,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:10:12,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:10:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:10:12,070 INFO L87 Difference]: Start difference. First operand 671 states and 914 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-28 04:10:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:18,077 INFO L93 Difference]: Finished difference Result 4378 states and 6739 transitions. [2021-12-28 04:10:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:10:18,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 191 [2021-12-28 04:10:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:18,104 INFO L225 Difference]: With dead ends: 4378 [2021-12-28 04:10:18,104 INFO L226 Difference]: Without dead ends: 3734 [2021-12-28 04:10:18,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2021-12-28 04:10:18,113 INFO L933 BasicCegarLoop]: 1233 mSDtfsCounter, 5291 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 4453 mSolverCounterSat, 3477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5579 SdHoareTripleChecker+Valid, 4308 SdHoareTripleChecker+Invalid, 7930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3477 IncrementalHoareTripleChecker+Valid, 4453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:18,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5579 Valid, 4308 Invalid, 7930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3477 Valid, 4453 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-28 04:10:18,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2021-12-28 04:10:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2677. [2021-12-28 04:10:18,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 1868 states have (on average 1.3297644539614561) internal successors, (2484), 1937 states have internal predecessors, (2484), 572 states have call successors, (572), 210 states have call predecessors, (572), 236 states have return successors, (793), 561 states have call predecessors, (793), 570 states have call successors, (793) [2021-12-28 04:10:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3849 transitions. [2021-12-28 04:10:18,285 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3849 transitions. Word has length 191 [2021-12-28 04:10:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:18,286 INFO L470 AbstractCegarLoop]: Abstraction has 2677 states and 3849 transitions. [2021-12-28 04:10:18,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-28 04:10:18,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3849 transitions. [2021-12-28 04:10:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-28 04:10:18,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:18,290 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:10:18,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:10:18,290 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:18,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1961396522, now seen corresponding path program 1 times [2021-12-28 04:10:18,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:18,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636890174] [2021-12-28 04:10:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:18,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-28 04:10:18,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:18,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636890174] [2021-12-28 04:10:18,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636890174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:18,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:18,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:10:18,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920684854] [2021-12-28 04:10:18,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:18,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:10:18,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:18,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:10:18,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:10:18,677 INFO L87 Difference]: Start difference. First operand 2677 states and 3849 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 04:10:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:19,711 INFO L93 Difference]: Finished difference Result 5791 states and 8928 transitions. [2021-12-28 04:10:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:10:19,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 188 [2021-12-28 04:10:19,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:19,730 INFO L225 Difference]: With dead ends: 5791 [2021-12-28 04:10:19,731 INFO L226 Difference]: Without dead ends: 3130 [2021-12-28 04:10:19,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:10:19,747 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 1084 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:19,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 1746 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-28 04:10:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2021-12-28 04:10:19,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 2658. [2021-12-28 04:10:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2658 states, 1850 states have (on average 1.3243243243243243) internal successors, (2450), 1918 states have internal predecessors, (2450), 571 states have call successors, (571), 210 states have call predecessors, (571), 236 states have return successors, (793), 561 states have call predecessors, (793), 570 states have call successors, (793) [2021-12-28 04:10:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 3814 transitions. [2021-12-28 04:10:19,882 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 3814 transitions. Word has length 188 [2021-12-28 04:10:19,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:19,883 INFO L470 AbstractCegarLoop]: Abstraction has 2658 states and 3814 transitions. [2021-12-28 04:10:19,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 04:10:19,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 3814 transitions. [2021-12-28 04:10:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-12-28 04:10:19,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:19,887 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:10:19,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:10:19,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:19,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:19,888 INFO L85 PathProgramCache]: Analyzing trace with hash 613908870, now seen corresponding path program 1 times [2021-12-28 04:10:19,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:19,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066670483] [2021-12-28 04:10:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:19,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:10:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-28 04:10:20,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:20,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066670483] [2021-12-28 04:10:20,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066670483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:20,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:20,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:20,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065472521] [2021-12-28 04:10:20,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:20,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:20,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:20,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:20,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:20,227 INFO L87 Difference]: Start difference. First operand 2658 states and 3814 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:10:22,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:22,851 INFO L93 Difference]: Finished difference Result 9810 states and 15064 transitions. [2021-12-28 04:10:22,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:10:22,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 194 [2021-12-28 04:10:22,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:22,902 INFO L225 Difference]: With dead ends: 9810 [2021-12-28 04:10:22,903 INFO L226 Difference]: Without dead ends: 7179 [2021-12-28 04:10:22,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:10:22,922 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 2808 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 1987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 3361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1987 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:22,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2988 Valid, 2361 Invalid, 3361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1987 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 04:10:22,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7179 states. [2021-12-28 04:10:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7179 to 5171. [2021-12-28 04:10:23,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 3599 states have (on average 1.3231453181439288) internal successors, (4762), 3735 states have internal predecessors, (4762), 1105 states have call successors, (1105), 413 states have call predecessors, (1105), 466 states have return successors, (1543), 1086 states have call predecessors, (1543), 1104 states have call successors, (1543) [2021-12-28 04:10:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 7410 transitions. [2021-12-28 04:10:23,254 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 7410 transitions. Word has length 194 [2021-12-28 04:10:23,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:23,255 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 7410 transitions. [2021-12-28 04:10:23,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:10:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 7410 transitions. [2021-12-28 04:10:23,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-28 04:10:23,258 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:23,258 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:10:23,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:10:23,259 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:23,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1610071865, now seen corresponding path program 1 times [2021-12-28 04:10:23,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:23,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478262276] [2021-12-28 04:10:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:23,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 04:10:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-28 04:10:23,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478262276] [2021-12-28 04:10:23,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478262276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:23,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:23,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:23,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493263047] [2021-12-28 04:10:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:23,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:23,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:23,588 INFO L87 Difference]: Start difference. First operand 5171 states and 7410 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:10:26,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:26,217 INFO L93 Difference]: Finished difference Result 18967 states and 29007 transitions. [2021-12-28 04:10:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:10:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 208 [2021-12-28 04:10:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:26,325 INFO L225 Difference]: With dead ends: 18967 [2021-12-28 04:10:26,325 INFO L226 Difference]: Without dead ends: 13833 [2021-12-28 04:10:26,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:10:26,354 INFO L933 BasicCegarLoop]: 1194 mSDtfsCounter, 1624 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 862 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:26,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1793 Valid, 3219 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [862 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 04:10:26,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13833 states. [2021-12-28 04:10:26,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13833 to 9837. [2021-12-28 04:10:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9837 states, 6856 states have (on average 1.3204492415402567) internal successors, (9053), 7096 states have internal predecessors, (9053), 2073 states have call successors, (2073), 800 states have call predecessors, (2073), 907 states have return successors, (2904), 2052 states have call predecessors, (2904), 2072 states have call successors, (2904) [2021-12-28 04:10:27,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9837 states to 9837 states and 14030 transitions. [2021-12-28 04:10:27,026 INFO L78 Accepts]: Start accepts. Automaton has 9837 states and 14030 transitions. Word has length 208 [2021-12-28 04:10:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:27,027 INFO L470 AbstractCegarLoop]: Abstraction has 9837 states and 14030 transitions. [2021-12-28 04:10:27,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:10:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 9837 states and 14030 transitions. [2021-12-28 04:10:27,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-12-28 04:10:27,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:27,033 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2021-12-28 04:10:27,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:10:27,034 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:27,035 INFO L85 PathProgramCache]: Analyzing trace with hash -844034172, now seen corresponding path program 1 times [2021-12-28 04:10:27,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:27,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95538783] [2021-12-28 04:10:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:27,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 04:10:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:10:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:10:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-28 04:10:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-28 04:10:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-28 04:10:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-28 04:10:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-12-28 04:10:27,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:27,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95538783] [2021-12-28 04:10:27,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95538783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:27,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:27,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:10:27,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513570940] [2021-12-28 04:10:27,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:27,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:10:27,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:27,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:10:27,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:10:27,457 INFO L87 Difference]: Start difference. First operand 9837 states and 14030 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 04:10:29,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:29,055 INFO L93 Difference]: Finished difference Result 21109 states and 31881 transitions. [2021-12-28 04:10:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:10:29,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 232 [2021-12-28 04:10:29,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:29,110 INFO L225 Difference]: With dead ends: 21109 [2021-12-28 04:10:29,110 INFO L226 Difference]: Without dead ends: 11313 [2021-12-28 04:10:29,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-12-28 04:10:29,161 INFO L933 BasicCegarLoop]: 871 mSDtfsCounter, 500 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:29,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 3140 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-28 04:10:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11313 states. [2021-12-28 04:10:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11313 to 9705. [2021-12-28 04:10:29,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9705 states, 6756 states have (on average 1.3169034931912373) internal successors, (8897), 6980 states have internal predecessors, (8897), 2045 states have call successors, (2045), 800 states have call predecessors, (2045), 903 states have return successors, (2852), 2020 states have call predecessors, (2852), 2044 states have call successors, (2852) [2021-12-28 04:10:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9705 states to 9705 states and 13794 transitions. [2021-12-28 04:10:29,716 INFO L78 Accepts]: Start accepts. Automaton has 9705 states and 13794 transitions. Word has length 232 [2021-12-28 04:10:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:29,719 INFO L470 AbstractCegarLoop]: Abstraction has 9705 states and 13794 transitions. [2021-12-28 04:10:29,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-28 04:10:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9705 states and 13794 transitions. [2021-12-28 04:10:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-28 04:10:29,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:29,723 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2021-12-28 04:10:29,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:10:29,724 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:29,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:29,724 INFO L85 PathProgramCache]: Analyzing trace with hash 770588296, now seen corresponding path program 1 times [2021-12-28 04:10:29,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:29,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522376725] [2021-12-28 04:10:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:29,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:29,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:10:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:30,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:30,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-28 04:10:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:30,023 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2021-12-28 04:10:30,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:30,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522376725] [2021-12-28 04:10:30,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522376725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:30,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:30,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:30,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122273100] [2021-12-28 04:10:30,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:30,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:30,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:30,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:30,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:30,025 INFO L87 Difference]: Start difference. First operand 9705 states and 13794 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 04:10:32,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:32,994 INFO L93 Difference]: Finished difference Result 29787 states and 45016 transitions. [2021-12-28 04:10:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:10:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 228 [2021-12-28 04:10:32,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:33,084 INFO L225 Difference]: With dead ends: 29787 [2021-12-28 04:10:33,085 INFO L226 Difference]: Without dead ends: 20123 [2021-12-28 04:10:33,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:10:33,117 INFO L933 BasicCegarLoop]: 1330 mSDtfsCounter, 1504 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:33,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1680 Valid, 3744 Invalid, 2659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-28 04:10:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20123 states. [2021-12-28 04:10:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20123 to 14509. [2021-12-28 04:10:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14509 states, 10120 states have (on average 1.3161067193675888) internal successors, (13319), 10456 states have internal predecessors, (13319), 3039 states have call successors, (3039), 1194 states have call predecessors, (3039), 1349 states have return successors, (4243), 3002 states have call predecessors, (4243), 3038 states have call successors, (4243) [2021-12-28 04:10:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14509 states to 14509 states and 20601 transitions. [2021-12-28 04:10:33,964 INFO L78 Accepts]: Start accepts. Automaton has 14509 states and 20601 transitions. Word has length 228 [2021-12-28 04:10:33,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:33,968 INFO L470 AbstractCegarLoop]: Abstraction has 14509 states and 20601 transitions. [2021-12-28 04:10:33,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 04:10:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14509 states and 20601 transitions. [2021-12-28 04:10:33,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-12-28 04:10:33,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:33,972 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2021-12-28 04:10:33,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 04:10:33,972 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:33,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:33,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1083364399, now seen corresponding path program 1 times [2021-12-28 04:10:33,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:33,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64799381] [2021-12-28 04:10:33,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:33,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 04:10:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-28 04:10:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 04:10:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-28 04:10:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 04:10:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 04:10:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-28 04:10:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-28 04:10:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:34,342 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-12-28 04:10:34,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:34,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64799381] [2021-12-28 04:10:34,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64799381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:34,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:34,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:34,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017408526] [2021-12-28 04:10:34,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:34,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:34,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:34,345 INFO L87 Difference]: Start difference. First operand 14509 states and 20601 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:36,093 INFO L93 Difference]: Finished difference Result 31341 states and 45444 transitions. [2021-12-28 04:10:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:10:36,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 241 [2021-12-28 04:10:36,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:36,185 INFO L225 Difference]: With dead ends: 31341 [2021-12-28 04:10:36,186 INFO L226 Difference]: Without dead ends: 16873 [2021-12-28 04:10:36,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:10:36,248 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 1287 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:36,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1366 Valid, 2024 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 04:10:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16873 states. [2021-12-28 04:10:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16873 to 14461. [2021-12-28 04:10:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14461 states, 10096 states have (on average 1.3144809825673534) internal successors, (13271), 10432 states have internal predecessors, (13271), 3015 states have call successors, (3015), 1194 states have call predecessors, (3015), 1349 states have return successors, (4165), 2978 states have call predecessors, (4165), 3014 states have call successors, (4165) [2021-12-28 04:10:37,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14461 states to 14461 states and 20451 transitions. [2021-12-28 04:10:37,062 INFO L78 Accepts]: Start accepts. Automaton has 14461 states and 20451 transitions. Word has length 241 [2021-12-28 04:10:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:37,062 INFO L470 AbstractCegarLoop]: Abstraction has 14461 states and 20451 transitions. [2021-12-28 04:10:37,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 14461 states and 20451 transitions. [2021-12-28 04:10:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-28 04:10:37,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:37,067 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2021-12-28 04:10:37,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 04:10:37,067 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:37,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash -986372997, now seen corresponding path program 1 times [2021-12-28 04:10:37,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:37,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692736217] [2021-12-28 04:10:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:37,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-28 04:10:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 04:10:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-28 04:10:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 04:10:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 04:10:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-28 04:10:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-28 04:10:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-28 04:10:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-12-28 04:10:37,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:37,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692736217] [2021-12-28 04:10:37,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692736217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:37,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:37,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:37,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950032190] [2021-12-28 04:10:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:37,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:37,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:37,392 INFO L87 Difference]: Start difference. First operand 14461 states and 20451 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:38,749 INFO L93 Difference]: Finished difference Result 31245 states and 45132 transitions. [2021-12-28 04:10:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:10:38,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 242 [2021-12-28 04:10:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:38,838 INFO L225 Difference]: With dead ends: 31245 [2021-12-28 04:10:38,838 INFO L226 Difference]: Without dead ends: 16825 [2021-12-28 04:10:38,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:10:38,891 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 1538 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:38,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1616 Valid, 1257 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 04:10:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16825 states. [2021-12-28 04:10:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16825 to 14413. [2021-12-28 04:10:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14413 states, 10072 states have (on average 1.312847498014297) internal successors, (13223), 10408 states have internal predecessors, (13223), 2991 states have call successors, (2991), 1194 states have call predecessors, (2991), 1349 states have return successors, (4087), 2954 states have call predecessors, (4087), 2990 states have call successors, (4087) [2021-12-28 04:10:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14413 states to 14413 states and 20301 transitions. [2021-12-28 04:10:39,671 INFO L78 Accepts]: Start accepts. Automaton has 14413 states and 20301 transitions. Word has length 242 [2021-12-28 04:10:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:39,671 INFO L470 AbstractCegarLoop]: Abstraction has 14413 states and 20301 transitions. [2021-12-28 04:10:39,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:39,672 INFO L276 IsEmpty]: Start isEmpty. Operand 14413 states and 20301 transitions. [2021-12-28 04:10:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-28 04:10:39,675 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:39,675 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2021-12-28 04:10:39,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 04:10:39,676 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:39,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:39,676 INFO L85 PathProgramCache]: Analyzing trace with hash -986524631, now seen corresponding path program 1 times [2021-12-28 04:10:39,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:39,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720605743] [2021-12-28 04:10:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:39,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 04:10:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-28 04:10:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 04:10:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 04:10:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-28 04:10:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-28 04:10:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 04:10:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-28 04:10:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-12-28 04:10:39,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:39,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720605743] [2021-12-28 04:10:39,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720605743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:39,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:39,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:39,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315594832] [2021-12-28 04:10:39,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:39,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:39,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:39,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:39,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:39,930 INFO L87 Difference]: Start difference. First operand 14413 states and 20301 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:43,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:43,028 INFO L93 Difference]: Finished difference Result 47785 states and 69277 transitions. [2021-12-28 04:10:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:10:43,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 239 [2021-12-28 04:10:43,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:43,192 INFO L225 Difference]: With dead ends: 47785 [2021-12-28 04:10:43,193 INFO L226 Difference]: Without dead ends: 33413 [2021-12-28 04:10:43,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:10:43,251 INFO L933 BasicCegarLoop]: 1243 mSDtfsCounter, 1843 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 1236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:43,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1933 Valid, 2394 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1236 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-28 04:10:43,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33413 states. [2021-12-28 04:10:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33413 to 28585. [2021-12-28 04:10:44,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28585 states, 19964 states have (on average 1.3120116209176518) internal successors, (26193), 20636 states have internal predecessors, (26193), 5933 states have call successors, (5933), 2376 states have call predecessors, (5933), 2687 states have return successors, (8072), 5860 states have call predecessors, (8072), 5932 states have call successors, (8072) [2021-12-28 04:10:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28585 states to 28585 states and 40198 transitions. [2021-12-28 04:10:44,650 INFO L78 Accepts]: Start accepts. Automaton has 28585 states and 40198 transitions. Word has length 239 [2021-12-28 04:10:44,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:44,652 INFO L470 AbstractCegarLoop]: Abstraction has 28585 states and 40198 transitions. [2021-12-28 04:10:44,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:44,652 INFO L276 IsEmpty]: Start isEmpty. Operand 28585 states and 40198 transitions. [2021-12-28 04:10:44,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-12-28 04:10:44,656 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:44,657 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2021-12-28 04:10:44,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 04:10:44,657 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:44,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:44,658 INFO L85 PathProgramCache]: Analyzing trace with hash 6727430, now seen corresponding path program 1 times [2021-12-28 04:10:44,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:44,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136609553] [2021-12-28 04:10:44,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:44,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:10:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-28 04:10:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-28 04:10:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 04:10:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 04:10:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-28 04:10:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-28 04:10:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-28 04:10:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-12-28 04:10:45,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:45,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136609553] [2021-12-28 04:10:45,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136609553] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:45,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:45,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:45,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313227111] [2021-12-28 04:10:45,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:45,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:45,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:45,482 INFO L87 Difference]: Start difference. First operand 28585 states and 40198 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:47,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:47,989 INFO L93 Difference]: Finished difference Result 61857 states and 88871 transitions. [2021-12-28 04:10:47,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:10:47,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 243 [2021-12-28 04:10:47,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:48,156 INFO L225 Difference]: With dead ends: 61857 [2021-12-28 04:10:48,156 INFO L226 Difference]: Without dead ends: 33313 [2021-12-28 04:10:48,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:10:48,239 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 1303 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:48,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 1627 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 04:10:48,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33313 states. [2021-12-28 04:10:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33313 to 28489. [2021-12-28 04:10:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28489 states, 19916 states have (on average 1.310353484635469) internal successors, (26097), 20588 states have internal predecessors, (26097), 5885 states have call successors, (5885), 2376 states have call predecessors, (5885), 2687 states have return successors, (7916), 5812 states have call predecessors, (7916), 5884 states have call successors, (7916) [2021-12-28 04:10:49,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28489 states to 28489 states and 39898 transitions. [2021-12-28 04:10:49,864 INFO L78 Accepts]: Start accepts. Automaton has 28489 states and 39898 transitions. Word has length 243 [2021-12-28 04:10:49,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:10:49,865 INFO L470 AbstractCegarLoop]: Abstraction has 28489 states and 39898 transitions. [2021-12-28 04:10:49,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 28489 states and 39898 transitions. [2021-12-28 04:10:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-28 04:10:49,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:10:49,869 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2021-12-28 04:10:49,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 04:10:49,870 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:10:49,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:10:49,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1458519858, now seen corresponding path program 1 times [2021-12-28 04:10:49,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:10:49,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709026961] [2021-12-28 04:10:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:10:49,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:10:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:10:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:10:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:10:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:10:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:10:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:10:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 04:10:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:10:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:10:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:10:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:10:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-28 04:10:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 04:10:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:10:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:10:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:10:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-28 04:10:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 04:10:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-28 04:10:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-28 04:10:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:10:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2021-12-28 04:10:50,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:10:50,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709026961] [2021-12-28 04:10:50,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709026961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:10:50,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:10:50,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:10:50,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772061377] [2021-12-28 04:10:50,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:10:50,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:10:50,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:10:50,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:10:50,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:10:50,416 INFO L87 Difference]: Start difference. First operand 28489 states and 39898 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-28 04:10:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:10:52,889 INFO L93 Difference]: Finished difference Result 59407 states and 84991 transitions. [2021-12-28 04:10:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:10:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 244 [2021-12-28 04:10:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:10:52,997 INFO L225 Difference]: With dead ends: 59407 [2021-12-28 04:10:52,997 INFO L226 Difference]: Without dead ends: 30959 [2021-12-28 04:10:53,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:10:53,071 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 1270 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:10:53,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 1996 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 04:10:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30959 states.