./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-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-43_2a-drivers--net--ethernet--amd--amd8111e.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 f5287aa284221e5fd9453b6be2206814d99b5890aba823bfb498c43964518ada --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:02:25,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:02:25,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:02:25,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:02:25,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:02:25,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:02:25,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:02:25,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:02:25,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:02:25,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:02:25,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:02:25,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:02:25,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:02:25,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:02:25,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:02:25,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:02:25,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:02:25,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:02:25,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:02:25,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:02:25,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:02:25,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:02:25,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:02:25,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:02:25,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:02:25,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:02:25,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:02:25,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:02:25,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:02:25,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:02:25,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:02:25,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:02:25,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:02:25,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:02:25,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:02:25,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:02:25,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:02:25,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:02:25,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:02:25,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:02:25,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:02:25,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:02:25,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:02:25,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:02:25,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:02:25,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:02:25,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:02:25,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:02:25,258 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:02:25,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:02:25,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:02:25,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:02:25,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:02:25,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:02:25,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:02:25,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:02:25,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:02:25,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:02:25,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:02:25,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:02:25,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:02:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:02:25,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:02:25,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:02:25,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:02:25,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:02:25,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:02:25,262 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:02:25,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:02:25,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:02:25,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:02:25,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5287aa284221e5fd9453b6be2206814d99b5890aba823bfb498c43964518ada [2021-11-05 19:02:25,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:02:25,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:02:25,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:02:25,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:02:25,526 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:02:25,526 INFO L432 ainManager$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-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i [2021-11-05 19:02:25,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4765a1741/b71b54f3c8ba4bad816d930821a4bad2/FLAGc4fb2fdca [2021-11-05 19:02:26,152 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:02:26,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i [2021-11-05 19:02:26,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4765a1741/b71b54f3c8ba4bad816d930821a4bad2/FLAGc4fb2fdca [2021-11-05 19:02:26,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4765a1741/b71b54f3c8ba4bad816d930821a4bad2 [2021-11-05 19:02:26,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:02:26,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:02:26,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:02:26,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:02:26,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:02:26,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:02:26" (1/1) ... [2021-11-05 19:02:26,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6cf96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:26, skipping insertion in model container [2021-11-05 19:02:26,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:02:26" (1/1) ... [2021-11-05 19:02:26,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:02:26,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:02:27,854 WARN L228 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-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i[274049,274062] [2021-11-05 19:02:27,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:02:27,922 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:02:28,184 WARN L228 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-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i[274049,274062] [2021-11-05 19:02:28,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:02:28,312 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:02:28,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28 WrapperNode [2021-11-05 19:02:28,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:02:28,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:02:28,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:02:28,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:02:28,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:28,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:02:29,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:02:29,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:02:29,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:02:29,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:29,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:30,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:02:30,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:02:30,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:02:30,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:02:30,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (1/1) ... [2021-11-05 19:02:30,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:02:30,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:02:30,114 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) [2021-11-05 19:02:30,270 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 [2021-11-05 19:02:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:02:30,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:02:30,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:02:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:02:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:02:30,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:02:30,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:02:39,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:02:39,809 INFO L299 CfgBuilder]: Removed 7407 assume(true) statements. [2021-11-05 19:02:39,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:02:39 BoogieIcfgContainer [2021-11-05 19:02:39,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:02:39,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:02:39,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:02:39,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:02:39,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:02:26" (1/3) ... [2021-11-05 19:02:39,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1615a305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:02:39, skipping insertion in model container [2021-11-05 19:02:39,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:02:28" (2/3) ... [2021-11-05 19:02:39,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1615a305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:02:39, skipping insertion in model container [2021-11-05 19:02:39,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:02:39" (3/3) ... [2021-11-05 19:02:39,820 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--amd--amd8111e.ko-entry_point.cil.out.i [2021-11-05 19:02:39,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:02:39,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-05 19:02:39,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:02:39,875 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 [2021-11-05 19:02:39,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-05 19:02:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 5737 states, 5727 states have (on average 1.3352540597171294) internal successors, (7647), 5736 states have internal predecessors, (7647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:39,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 19:02:39,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:39,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:39,952 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:39,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1668420062, now seen corresponding path program 1 times [2021-11-05 19:02:39,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:39,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033667952] [2021-11-05 19:02:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:39,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:40,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:40,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:40,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033667952] [2021-11-05 19:02:40,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033667952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:40,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:40,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:02:40,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965043215] [2021-11-05 19:02:40,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:40,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 19:02:40,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 19:02:40,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:02:40,372 INFO L87 Difference]: Start difference. First operand has 5737 states, 5727 states have (on average 1.3352540597171294) internal successors, (7647), 5736 states have internal predecessors, (7647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:40,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:40,603 INFO L93 Difference]: Finished difference Result 11470 states and 15289 transitions. [2021-11-05 19:02:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 19:02:40,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-05 19:02:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:40,632 INFO L225 Difference]: With dead ends: 11470 [2021-11-05 19:02:40,633 INFO L226 Difference]: Without dead ends: 5671 [2021-11-05 19:02:40,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 19:02:40,654 INFO L933 BasicCegarLoop]: 7595 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7595 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:40,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7595 Invalid, 0 Unknown, 0 Unchecked, 47.75ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 19:02:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5671 states. [2021-11-05 19:02:40,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5671 to 5671. [2021-11-05 19:02:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5671 states, 5662 states have (on average 1.318968562345461) internal successors, (7468), 5670 states have internal predecessors, (7468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5671 states to 5671 states and 7468 transitions. [2021-11-05 19:02:40,819 INFO L78 Accepts]: Start accepts. Automaton has 5671 states and 7468 transitions. Word has length 74 [2021-11-05 19:02:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:40,820 INFO L470 AbstractCegarLoop]: Abstraction has 5671 states and 7468 transitions. [2021-11-05 19:02:40,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5671 states and 7468 transitions. [2021-11-05 19:02:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 19:02:40,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:40,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:40,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:02:40,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:40,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:40,829 INFO L85 PathProgramCache]: Analyzing trace with hash 661915882, now seen corresponding path program 1 times [2021-11-05 19:02:40,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:40,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589242249] [2021-11-05 19:02:40,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:40,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:40,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:40,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589242249] [2021-11-05 19:02:40,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589242249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:40,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:40,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:40,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576854450] [2021-11-05 19:02:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:40,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:40,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:40,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:40,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:40,944 INFO L87 Difference]: Start difference. First operand 5671 states and 7468 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:41,235 INFO L93 Difference]: Finished difference Result 13492 states and 17879 transitions. [2021-11-05 19:02:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-05 19:02:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:41,257 INFO L225 Difference]: With dead ends: 13492 [2021-11-05 19:02:41,257 INFO L226 Difference]: Without dead ends: 7861 [2021-11-05 19:02:41,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:41,267 INFO L933 BasicCegarLoop]: 7467 mSDtfsCounter, 3030 mSDsluCounter, 7317 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3030 SdHoareTripleChecker+Valid, 14784 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.88ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.26ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:41,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3030 Valid, 14784 Invalid, 103 Unknown, 0 Unchecked, 18.88ms Time], IncrementalHoareTripleChecker [16 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 97.26ms Time] [2021-11-05 19:02:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2021-11-05 19:02:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7799. [2021-11-05 19:02:41,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7799 states, 7790 states have (on average 1.332349165596919) internal successors, (10379), 7798 states have internal predecessors, (10379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7799 states to 7799 states and 10379 transitions. [2021-11-05 19:02:41,586 INFO L78 Accepts]: Start accepts. Automaton has 7799 states and 10379 transitions. Word has length 74 [2021-11-05 19:02:41,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:41,587 INFO L470 AbstractCegarLoop]: Abstraction has 7799 states and 10379 transitions. [2021-11-05 19:02:41,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:41,587 INFO L276 IsEmpty]: Start isEmpty. Operand 7799 states and 10379 transitions. [2021-11-05 19:02:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-05 19:02:41,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:41,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:41,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:02:41,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:41,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:41,591 INFO L85 PathProgramCache]: Analyzing trace with hash -715939706, now seen corresponding path program 1 times [2021-11-05 19:02:41,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:41,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185399005] [2021-11-05 19:02:41,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:41,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:41,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:41,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185399005] [2021-11-05 19:02:41,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185399005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:41,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:41,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:41,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658127402] [2021-11-05 19:02:41,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:41,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:41,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:41,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:41,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:41,692 INFO L87 Difference]: Start difference. First operand 7799 states and 10379 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:41,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:41,966 INFO L93 Difference]: Finished difference Result 21417 states and 28630 transitions. [2021-11-05 19:02:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:41,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-05 19:02:41,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:42,005 INFO L225 Difference]: With dead ends: 21417 [2021-11-05 19:02:42,006 INFO L226 Difference]: Without dead ends: 13658 [2021-11-05 19:02:42,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:42,019 INFO L933 BasicCegarLoop]: 11874 mSDtfsCounter, 6195 mSDsluCounter, 7374 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6195 SdHoareTripleChecker+Valid, 19248 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.39ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.84ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:42,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6195 Valid, 19248 Invalid, 53 Unknown, 0 Unchecked, 17.39ms Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 49.84ms Time] [2021-11-05 19:02:42,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13658 states. [2021-11-05 19:02:42,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13658 to 13644. [2021-11-05 19:02:42,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13644 states, 13635 states have (on average 1.340960762742941) internal successors, (18284), 13643 states have internal predecessors, (18284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13644 states to 13644 states and 18284 transitions. [2021-11-05 19:02:42,277 INFO L78 Accepts]: Start accepts. Automaton has 13644 states and 18284 transitions. Word has length 83 [2021-11-05 19:02:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:42,277 INFO L470 AbstractCegarLoop]: Abstraction has 13644 states and 18284 transitions. [2021-11-05 19:02:42,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:42,278 INFO L276 IsEmpty]: Start isEmpty. Operand 13644 states and 18284 transitions. [2021-11-05 19:02:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 19:02:42,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:42,283 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 19:02:42,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:02:42,283 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:42,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:42,284 INFO L85 PathProgramCache]: Analyzing trace with hash -545595546, now seen corresponding path program 1 times [2021-11-05 19:02:42,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:42,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051865941] [2021-11-05 19:02:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:42,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:42,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:42,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051865941] [2021-11-05 19:02:42,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051865941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:42,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:42,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:42,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266051586] [2021-11-05 19:02:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:42,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:42,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:42,432 INFO L87 Difference]: Start difference. First operand 13644 states and 18284 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:42,676 INFO L93 Difference]: Finished difference Result 27248 states and 36525 transitions. [2021-11-05 19:02:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:42,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-05 19:02:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:42,700 INFO L225 Difference]: With dead ends: 27248 [2021-11-05 19:02:42,701 INFO L226 Difference]: Without dead ends: 13644 [2021-11-05 19:02:42,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:42,720 INFO L933 BasicCegarLoop]: 7466 mSDtfsCounter, 7464 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7464 SdHoareTripleChecker+Valid, 7466 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.94ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.45ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:42,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7464 Valid, 7466 Invalid, 3 Unknown, 0 Unchecked, 9.94ms Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.45ms Time] [2021-11-05 19:02:42,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13644 states. [2021-11-05 19:02:42,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13644 to 13644. [2021-11-05 19:02:42,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13644 states, 13635 states have (on average 1.3408140814081408) internal successors, (18282), 13643 states have internal predecessors, (18282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13644 states to 13644 states and 18282 transitions. [2021-11-05 19:02:42,977 INFO L78 Accepts]: Start accepts. Automaton has 13644 states and 18282 transitions. Word has length 101 [2021-11-05 19:02:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:42,978 INFO L470 AbstractCegarLoop]: Abstraction has 13644 states and 18282 transitions. [2021-11-05 19:02:42,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 13644 states and 18282 transitions. [2021-11-05 19:02:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 19:02:42,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:42,983 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:42,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:02:42,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash 378896821, now seen corresponding path program 1 times [2021-11-05 19:02:42,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:42,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047096551] [2021-11-05 19:02:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:42,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:02:43,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:43,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047096551] [2021-11-05 19:02:43,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047096551] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:43,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:43,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:43,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063905501] [2021-11-05 19:02:43,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:43,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:43,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:43,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:43,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:43,196 INFO L87 Difference]: Start difference. First operand 13644 states and 18282 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:43,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:43,856 INFO L93 Difference]: Finished difference Result 33157 states and 44532 transitions. [2021-11-05 19:02:43,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:43,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-05 19:02:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:43,894 INFO L225 Difference]: With dead ends: 33157 [2021-11-05 19:02:43,894 INFO L226 Difference]: Without dead ends: 19553 [2021-11-05 19:02:43,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:43,919 INFO L933 BasicCegarLoop]: 13609 mSDtfsCounter, 6298 mSDsluCounter, 7276 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 329.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6298 SdHoareTripleChecker+Valid, 20885 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.18ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 360.85ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:43,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6298 Valid, 20885 Invalid, 85 Unknown, 0 Unchecked, 25.18ms Time], IncrementalHoareTripleChecker [21 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 360.85ms Time] [2021-11-05 19:02:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19553 states. [2021-11-05 19:02:44,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19553 to 19539. [2021-11-05 19:02:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19539 states, 19530 states have (on average 1.3441372247823862) internal successors, (26251), 19538 states have internal predecessors, (26251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19539 states to 19539 states and 26251 transitions. [2021-11-05 19:02:44,302 INFO L78 Accepts]: Start accepts. Automaton has 19539 states and 26251 transitions. Word has length 113 [2021-11-05 19:02:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:44,304 INFO L470 AbstractCegarLoop]: Abstraction has 19539 states and 26251 transitions. [2021-11-05 19:02:44,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:44,305 INFO L276 IsEmpty]: Start isEmpty. Operand 19539 states and 26251 transitions. [2021-11-05 19:02:44,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-05 19:02:44,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:44,313 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:44,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:02:44,314 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:44,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1406290303, now seen corresponding path program 1 times [2021-11-05 19:02:44,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:44,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031971463] [2021-11-05 19:02:44,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:44,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:44,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-05 19:02:44,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:44,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031971463] [2021-11-05 19:02:44,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031971463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:44,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:44,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:44,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568810281] [2021-11-05 19:02:44,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:44,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:44,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:44,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:44,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:44,458 INFO L87 Difference]: Start difference. First operand 19539 states and 26251 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:45,173 INFO L93 Difference]: Finished difference Result 44945 states and 60466 transitions. [2021-11-05 19:02:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-05 19:02:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:45,232 INFO L225 Difference]: With dead ends: 44945 [2021-11-05 19:02:45,232 INFO L226 Difference]: Without dead ends: 25446 [2021-11-05 19:02:45,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:45,273 INFO L933 BasicCegarLoop]: 9231 mSDtfsCounter, 6252 mSDsluCounter, 7343 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 273.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6252 SdHoareTripleChecker+Valid, 16574 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.13ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 312.70ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:45,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6252 Valid, 16574 Invalid, 84 Unknown, 0 Unchecked, 14.13ms Time], IncrementalHoareTripleChecker [21 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 312.70ms Time] [2021-11-05 19:02:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25446 states. [2021-11-05 19:02:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25446 to 25432. [2021-11-05 19:02:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25432 states, 25423 states have (on average 1.3460252527239114) internal successors, (34220), 25431 states have internal predecessors, (34220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25432 states to 25432 states and 34220 transitions. [2021-11-05 19:02:45,823 INFO L78 Accepts]: Start accepts. Automaton has 25432 states and 34220 transitions. Word has length 125 [2021-11-05 19:02:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:45,824 INFO L470 AbstractCegarLoop]: Abstraction has 25432 states and 34220 transitions. [2021-11-05 19:02:45,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 25432 states and 34220 transitions. [2021-11-05 19:02:45,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-05 19:02:45,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:45,837 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:45,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:02:45,838 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:45,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:45,838 INFO L85 PathProgramCache]: Analyzing trace with hash 140030528, now seen corresponding path program 1 times [2021-11-05 19:02:45,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:45,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098860964] [2021-11-05 19:02:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:45,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-05 19:02:45,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:45,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098860964] [2021-11-05 19:02:45,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098860964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:45,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:45,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:45,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329290308] [2021-11-05 19:02:45,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:45,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:45,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:45,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:45,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:45,966 INFO L87 Difference]: Start difference. First operand 25432 states and 34220 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:46,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:46,917 INFO L93 Difference]: Finished difference Result 76112 states and 102458 transitions. [2021-11-05 19:02:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:46,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-05 19:02:46,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:47,061 INFO L225 Difference]: With dead ends: 76112 [2021-11-05 19:02:47,061 INFO L226 Difference]: Without dead ends: 50720 [2021-11-05 19:02:47,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:47,123 INFO L933 BasicCegarLoop]: 14830 mSDtfsCounter, 7415 mSDsluCounter, 7411 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7415 SdHoareTripleChecker+Valid, 22241 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.68ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.40ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:47,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7415 Valid, 22241 Invalid, 6 Unknown, 0 Unchecked, 21.68ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 6.40ms Time] [2021-11-05 19:02:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50720 states. [2021-11-05 19:02:47,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50720 to 25434. [2021-11-05 19:02:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25434 states, 25425 states have (on average 1.3459980334316617) internal successors, (34222), 25433 states have internal predecessors, (34222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25434 states to 25434 states and 34222 transitions. [2021-11-05 19:02:48,070 INFO L78 Accepts]: Start accepts. Automaton has 25434 states and 34222 transitions. Word has length 143 [2021-11-05 19:02:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:48,070 INFO L470 AbstractCegarLoop]: Abstraction has 25434 states and 34222 transitions. [2021-11-05 19:02:48,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:48,070 INFO L276 IsEmpty]: Start isEmpty. Operand 25434 states and 34222 transitions. [2021-11-05 19:02:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-05 19:02:48,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:48,082 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:48,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 19:02:48,083 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash -213057854, now seen corresponding path program 1 times [2021-11-05 19:02:48,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:48,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573803805] [2021-11-05 19:02:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:48,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:48,215 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-05 19:02:48,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:48,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573803805] [2021-11-05 19:02:48,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573803805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:48,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:48,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:48,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354804405] [2021-11-05 19:02:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:48,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:48,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:48,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:48,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:48,218 INFO L87 Difference]: Start difference. First operand 25434 states and 34222 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:49,469 INFO L93 Difference]: Finished difference Result 56733 states and 76404 transitions. [2021-11-05 19:02:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-05 19:02:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:49,532 INFO L225 Difference]: With dead ends: 56733 [2021-11-05 19:02:49,532 INFO L226 Difference]: Without dead ends: 31339 [2021-11-05 19:02:49,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:49,563 INFO L933 BasicCegarLoop]: 13637 mSDtfsCounter, 6511 mSDsluCounter, 7082 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 374.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6511 SdHoareTripleChecker+Valid, 20719 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.15ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 423.67ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:49,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6511 Valid, 20719 Invalid, 82 Unknown, 0 Unchecked, 16.15ms Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 423.67ms Time] [2021-11-05 19:02:49,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31339 states. [2021-11-05 19:02:50,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31339 to 31325. [2021-11-05 19:02:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31325 states, 31316 states have (on average 1.3471388427640822) internal successors, (42187), 31324 states have internal predecessors, (42187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:50,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31325 states to 31325 states and 42187 transitions. [2021-11-05 19:02:50,244 INFO L78 Accepts]: Start accepts. Automaton has 31325 states and 42187 transitions. Word has length 143 [2021-11-05 19:02:50,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:50,244 INFO L470 AbstractCegarLoop]: Abstraction has 31325 states and 42187 transitions. [2021-11-05 19:02:50,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 31325 states and 42187 transitions. [2021-11-05 19:02:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-05 19:02:50,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:50,256 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:50,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 19:02:50,256 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:50,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458536, now seen corresponding path program 1 times [2021-11-05 19:02:50,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:50,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325190380] [2021-11-05 19:02:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:50,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:50,368 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-05 19:02:50,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:50,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325190380] [2021-11-05 19:02:50,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325190380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:50,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:50,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:02:50,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935417747] [2021-11-05 19:02:50,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:50,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:02:50,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:02:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:50,371 INFO L87 Difference]: Start difference. First operand 31325 states and 42187 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:51,481 INFO L93 Difference]: Finished difference Result 64168 states and 86381 transitions. [2021-11-05 19:02:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:02:51,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-11-05 19:02:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:51,554 INFO L225 Difference]: With dead ends: 64168 [2021-11-05 19:02:51,554 INFO L226 Difference]: Without dead ends: 32883 [2021-11-05 19:02:51,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:02:51,597 INFO L933 BasicCegarLoop]: 7347 mSDtfsCounter, 460 mSDsluCounter, 7307 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 235.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 14654 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.05ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 292.18ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:51,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 14654 Invalid, 298 Unknown, 0 Unchecked, 10.05ms Time], IncrementalHoareTripleChecker [38 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 292.18ms Time] [2021-11-05 19:02:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32883 states. [2021-11-05 19:02:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32883 to 31407. [2021-11-05 19:02:52,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31407 states, 31398 states have (on average 1.3462322440919803) internal successors, (42269), 31406 states have internal predecessors, (42269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31407 states to 31407 states and 42269 transitions. [2021-11-05 19:02:52,387 INFO L78 Accepts]: Start accepts. Automaton has 31407 states and 42269 transitions. Word has length 144 [2021-11-05 19:02:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:52,388 INFO L470 AbstractCegarLoop]: Abstraction has 31407 states and 42269 transitions. [2021-11-05 19:02:52,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 31407 states and 42269 transitions. [2021-11-05 19:02:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-05 19:02:52,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:52,407 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:52,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 19:02:52,407 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1195307448, now seen corresponding path program 1 times [2021-11-05 19:02:52,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:52,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147024715] [2021-11-05 19:02:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:52,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-05 19:02:52,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:52,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147024715] [2021-11-05 19:02:52,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147024715] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 19:02:52,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768113159] [2021-11-05 19:02:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:52,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 19:02:52,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:02:52,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 19:02:52,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 19:02:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:53,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 2600 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 19:02:53,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 19:02:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-05 19:02:53,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 19:02:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-05 19:02:53,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768113159] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 19:02:53,606 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 19:02:53,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-05 19:02:53,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165739768] [2021-11-05 19:02:53,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 19:02:53,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 19:02:53,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:53,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 19:02:53,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-05 19:02:53,608 INFO L87 Difference]: Start difference. First operand 31407 states and 42269 transitions. Second operand has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:55,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:02:55,220 INFO L93 Difference]: Finished difference Result 67448 states and 90645 transitions. [2021-11-05 19:02:55,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 19:02:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-11-05 19:02:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:02:55,305 INFO L225 Difference]: With dead ends: 67448 [2021-11-05 19:02:55,305 INFO L226 Difference]: Without dead ends: 36081 [2021-11-05 19:02:55,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 12.15ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-05 19:02:55,346 INFO L933 BasicCegarLoop]: 7347 mSDtfsCounter, 3217 mSDsluCounter, 15334 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 631.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3217 SdHoareTripleChecker+Valid, 22681 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.06ms SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 751.26ms IncrementalHoareTripleChecker+Time [2021-11-05 19:02:55,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3217 Valid, 22681 Invalid, 874 Unknown, 0 Unchecked, 17.06ms Time], IncrementalHoareTripleChecker [214 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 751.26ms Time] [2021-11-05 19:02:55,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36081 states. [2021-11-05 19:02:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36081 to 36081. [2021-11-05 19:02:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36081 states, 36072 states have (on average 1.335467952982923) internal successors, (48173), 36080 states have internal predecessors, (48173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36081 states to 36081 states and 48173 transitions. [2021-11-05 19:02:56,121 INFO L78 Accepts]: Start accepts. Automaton has 36081 states and 48173 transitions. Word has length 152 [2021-11-05 19:02:56,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:02:56,121 INFO L470 AbstractCegarLoop]: Abstraction has 36081 states and 48173 transitions. [2021-11-05 19:02:56,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:02:56,122 INFO L276 IsEmpty]: Start isEmpty. Operand 36081 states and 48173 transitions. [2021-11-05 19:02:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-05 19:02:56,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:02:56,135 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:02:56,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 19:02:56,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-05 19:02:56,357 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:02:56,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:02:56,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1555693623, now seen corresponding path program 1 times [2021-11-05 19:02:56,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:02:56,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437201651] [2021-11-05 19:02:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:02:56,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:02:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:02:56,577 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-05 19:02:56,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:02:56,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437201651] [2021-11-05 19:02:56,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437201651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:02:56,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:02:56,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 19:02:56,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431733495] [2021-11-05 19:02:56,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:02:56,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 19:02:56,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:02:56,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 19:02:56,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 19:02:56,580 INFO L87 Difference]: Start difference. First operand 36081 states and 48173 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:03:01,942 INFO L93 Difference]: Finished difference Result 230126 states and 308599 transitions. [2021-11-05 19:03:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 19:03:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2021-11-05 19:03:01,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:03:02,501 INFO L225 Difference]: With dead ends: 230126 [2021-11-05 19:03:02,501 INFO L226 Difference]: Without dead ends: 194085 [2021-11-05 19:03:02,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 59.19ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-05 19:03:02,588 INFO L933 BasicCegarLoop]: 14900 mSDtfsCounter, 62758 mSDsluCounter, 58028 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62758 SdHoareTripleChecker+Valid, 72928 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 93.87ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 389.43ms IncrementalHoareTripleChecker+Time [2021-11-05 19:03:02,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62758 Valid, 72928 Invalid, 547 Unknown, 0 Unchecked, 93.87ms Time], IncrementalHoareTripleChecker [87 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 389.43ms Time] [2021-11-05 19:03:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194085 states. [2021-11-05 19:03:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194085 to 36225. [2021-11-05 19:03:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36225 states, 36216 states have (on average 1.3341340843825933) internal successors, (48317), 36224 states have internal predecessors, (48317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36225 states to 36225 states and 48317 transitions. [2021-11-05 19:03:05,057 INFO L78 Accepts]: Start accepts. Automaton has 36225 states and 48317 transitions. Word has length 154 [2021-11-05 19:03:05,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:03:05,057 INFO L470 AbstractCegarLoop]: Abstraction has 36225 states and 48317 transitions. [2021-11-05 19:03:05,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:05,057 INFO L276 IsEmpty]: Start isEmpty. Operand 36225 states and 48317 transitions. [2021-11-05 19:03:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-05 19:03:05,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:03:05,069 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:03:05,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 19:03:05,069 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-05 19:03:05,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:03:05,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1317006267, now seen corresponding path program 1 times [2021-11-05 19:03:05,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:03:05,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170341034] [2021-11-05 19:03:05,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:03:05,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:03:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:03:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-11-05 19:03:05,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:03:05,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170341034] [2021-11-05 19:03:05,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170341034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:03:05,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:03:05,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 19:03:05,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741575121] [2021-11-05 19:03:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:03:05,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 19:03:05,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:03:05,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 19:03:05,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 19:03:05,289 INFO L87 Difference]: Start difference. First operand 36225 states and 48317 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:03:13,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:03:13,316 INFO L93 Difference]: Finished difference Result 230450 states and 308923 transitions. [2021-11-05 19:03:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 19:03:13,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2021-11-05 19:03:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:03:13,823 INFO L225 Difference]: With dead ends: 230450 [2021-11-05 19:03:13,823 INFO L226 Difference]: Without dead ends: 194265 [2021-11-05 19:03:13,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 56.97ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-05 19:03:13,988 INFO L933 BasicCegarLoop]: 21881 mSDtfsCounter, 48586 mSDsluCounter, 57850 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 354.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48586 SdHoareTripleChecker+Valid, 79731 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 91.03ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 451.82ms IncrementalHoareTripleChecker+Time [2021-11-05 19:03:13,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48586 Valid, 79731 Invalid, 609 Unknown, 0 Unchecked, 91.03ms Time], IncrementalHoareTripleChecker [78 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 451.82ms Time] [2021-11-05 19:03:14,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194265 states.