./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--hippi--rrunner.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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--hippi--rrunner.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 ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:30:42,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:30:42,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:30:42,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:30:42,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:30:42,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:30:42,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:30:42,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:30:42,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:30:42,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:30:42,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:30:42,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:30:42,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:30:42,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:30:42,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:30:42,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:30:42,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:30:42,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:30:42,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:30:42,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:30:42,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:30:42,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:30:42,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:30:42,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:30:42,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:30:42,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:30:42,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:30:42,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:30:42,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:30:42,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:30:42,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:30:42,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:30:42,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:30:42,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:30:42,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:30:42,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:30:42,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:30:42,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:30:42,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:30:42,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:30:42,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:30:42,351 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:30:42,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:30:42,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:30:42,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:30:42,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:30:42,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:30:42,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:30:42,384 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:30:42,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:30:42,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:30:42,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:30:42,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:30:42,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:30:42,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:30:42,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:30:42,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:30:42,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:30:42,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:30:42,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:30:42,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:30:42,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:30:42,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:30:42,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:30:42,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:30:42,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:30:42,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:30:42,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:30:42,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:30:42,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:30:42,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:30:42,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed28fe99994604a1173e3d4f71ab5b1542eccb5293571b04f5dd99c12a84c046 [2021-11-06 17:30:42,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:30:42,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:30:42,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:30:42,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:30:42,655 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:30:42,656 INFO L432 ainManager$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--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-06 17:30:42,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ea5f0ed/4f7f62fc6f404d3bbb05e018dc94b373/FLAG0563784fe [2021-11-06 17:30:43,528 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:30:43,529 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--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-06 17:30:43,584 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ea5f0ed/4f7f62fc6f404d3bbb05e018dc94b373/FLAG0563784fe [2021-11-06 17:30:43,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72ea5f0ed/4f7f62fc6f404d3bbb05e018dc94b373 [2021-11-06 17:30:43,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:30:43,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:30:43,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:30:43,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:30:43,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:30:43,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:30:43" (1/1) ... [2021-11-06 17:30:43,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b32a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:43, skipping insertion in model container [2021-11-06 17:30:43,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:30:43" (1/1) ... [2021-11-06 17:30:43,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:30:43,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:30:45,416 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--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2021-11-06 17:30:45,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:30:45,488 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:30:45,744 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--hippi--rrunner.ko-entry_point.cil.out.i[275280,275293] [2021-11-06 17:30:45,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:30:45,858 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:30:45,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45 WrapperNode [2021-11-06 17:30:45,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:30:45,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:30:45,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:30:45,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:30:45,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:45,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:30:46,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:30:46,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:30:46,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:30:46,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:30:46,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:30:46,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:30:46,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:30:46,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (1/1) ... [2021-11-06 17:30:46,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:30:46,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:30:46,997 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) [2021-11-06 17:30:47,019 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 [2021-11-06 17:30:47,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:30:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:30:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:30:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:30:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:30:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:30:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:30:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:30:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:30:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:30:56,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:30:56,848 INFO L299 CfgBuilder]: Removed 3230 assume(true) statements. [2021-11-06 17:30:56,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:30:56 BoogieIcfgContainer [2021-11-06 17:30:56,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:30:56,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:30:56,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:30:56,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:30:56,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:30:43" (1/3) ... [2021-11-06 17:30:56,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c28df9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:30:56, skipping insertion in model container [2021-11-06 17:30:56,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:30:45" (2/3) ... [2021-11-06 17:30:56,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c28df9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:30:56, skipping insertion in model container [2021-11-06 17:30:56,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:30:56" (3/3) ... [2021-11-06 17:30:56,858 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--hippi--rrunner.ko-entry_point.cil.out.i [2021-11-06 17:30:56,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:30:56,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-06 17:30:56,911 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:30:56,916 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 [2021-11-06 17:30:56,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-06 17:30:56,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 2512 states, 2491 states have (on average 1.3147330389401846) internal successors, (3275), 2511 states have internal predecessors, (3275), 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) [2021-11-06 17:30:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-06 17:30:56,967 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:30:56,967 INFO L513 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] [2021-11-06 17:30:56,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:30:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:30:56,973 INFO L85 PathProgramCache]: Analyzing trace with hash -241596489, now seen corresponding path program 1 times [2021-11-06 17:30:56,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:30:56,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614564039] [2021-11-06 17:30:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:30:56,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:30:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:30:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:30:57,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:30:57,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614564039] [2021-11-06 17:30:57,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614564039] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:30:57,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:30:57,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:30:57,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895403718] [2021-11-06 17:30:57,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:30:57,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:30:57,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:30:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:30:57,480 INFO L87 Difference]: Start difference. First operand has 2512 states, 2491 states have (on average 1.3147330389401846) internal successors, (3275), 2511 states have internal predecessors, (3275), 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-06 17:30:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:30:57,669 INFO L93 Difference]: Finished difference Result 5020 states and 6545 transitions. [2021-11-06 17:30:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:30:57,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2021-11-06 17:30:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:30:57,697 INFO L225 Difference]: With dead ends: 5020 [2021-11-06 17:30:57,698 INFO L226 Difference]: Without dead ends: 2468 [2021-11-06 17:30:57,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:30:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-11-06 17:30:57,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2468. [2021-11-06 17:30:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 2448 states have (on average 1.2818627450980393) internal successors, (3138), 2467 states have internal predecessors, (3138), 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) [2021-11-06 17:30:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3138 transitions. [2021-11-06 17:30:57,832 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3138 transitions. Word has length 38 [2021-11-06 17:30:57,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:30:57,833 INFO L470 AbstractCegarLoop]: Abstraction has 2468 states and 3138 transitions. [2021-11-06 17:30:57,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-06 17:30:57,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3138 transitions. [2021-11-06 17:30:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-06 17:30:57,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:30:57,839 INFO L513 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] [2021-11-06 17:30:57,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:30:57,840 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:30:57,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:30:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash -266212417, now seen corresponding path program 1 times [2021-11-06 17:30:57,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:30:57,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543733407] [2021-11-06 17:30:57,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:30:57,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:30:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:30:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:30:58,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:30:58,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543733407] [2021-11-06 17:30:58,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543733407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:30:58,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:30:58,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:30:58,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643937004] [2021-11-06 17:30:58,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:30:58,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:30:58,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:30:58,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:30:58,039 INFO L87 Difference]: Start difference. First operand 2468 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-06 17:30:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:30:58,276 INFO L93 Difference]: Finished difference Result 6310 states and 8071 transitions. [2021-11-06 17:30:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:30:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-11-06 17:30:58,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:30:58,293 INFO L225 Difference]: With dead ends: 6310 [2021-11-06 17:30:58,293 INFO L226 Difference]: Without dead ends: 3867 [2021-11-06 17:30:58,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:30:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2021-11-06 17:30:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3703. [2021-11-06 17:30:58,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3703 states, 3683 states have (on average 1.2956828672278033) internal successors, (4772), 3702 states have internal predecessors, (4772), 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) [2021-11-06 17:30:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3703 states to 3703 states and 4772 transitions. [2021-11-06 17:30:58,386 INFO L78 Accepts]: Start accepts. Automaton has 3703 states and 4772 transitions. Word has length 38 [2021-11-06 17:30:58,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:30:58,388 INFO L470 AbstractCegarLoop]: Abstraction has 3703 states and 4772 transitions. [2021-11-06 17:30:58,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-06 17:30:58,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3703 states and 4772 transitions. [2021-11-06 17:30:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-06 17:30:58,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:30:58,392 INFO L513 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] [2021-11-06 17:30:58,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:30:58,393 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:30:58,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:30:58,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1589790222, now seen corresponding path program 1 times [2021-11-06 17:30:58,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:30:58,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705924515] [2021-11-06 17:30:58,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:30:58,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:30:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:30:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:30:58,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:30:58,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705924515] [2021-11-06 17:30:58,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705924515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:30:58,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:30:58,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:30:58,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392122762] [2021-11-06 17:30:58,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:30:58,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:30:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:30:58,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:30:58,627 INFO L87 Difference]: Start difference. First operand 3703 states and 4772 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-06 17:30:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:30:59,012 INFO L93 Difference]: Finished difference Result 14969 states and 18952 transitions. [2021-11-06 17:30:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:30:59,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-06 17:30:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:30:59,156 INFO L225 Difference]: With dead ends: 14969 [2021-11-06 17:30:59,158 INFO L226 Difference]: Without dead ends: 11291 [2021-11-06 17:30:59,168 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:30:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2021-11-06 17:30:59,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 5812. [2021-11-06 17:30:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 5792 states have (on average 1.2698549723756907) internal successors, (7355), 5811 states have internal predecessors, (7355), 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) [2021-11-06 17:30:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 7355 transitions. [2021-11-06 17:30:59,377 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 7355 transitions. Word has length 49 [2021-11-06 17:30:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:30:59,378 INFO L470 AbstractCegarLoop]: Abstraction has 5812 states and 7355 transitions. [2021-11-06 17:30:59,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-06 17:30:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 7355 transitions. [2021-11-06 17:30:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 17:30:59,380 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:30:59,380 INFO L513 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] [2021-11-06 17:30:59,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:30:59,381 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:30:59,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:30:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash -166561557, now seen corresponding path program 1 times [2021-11-06 17:30:59,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:30:59,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209498493] [2021-11-06 17:30:59,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:30:59,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:30:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:30:59,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:30:59,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:30:59,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209498493] [2021-11-06 17:30:59,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209498493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:30:59,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:30:59,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:30:59,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830941229] [2021-11-06 17:30:59,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:30:59,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:30:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:30:59,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:30:59,564 INFO L87 Difference]: Start difference. First operand 5812 states and 7355 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-06 17:31:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:31:00,250 INFO L93 Difference]: Finished difference Result 25512 states and 31867 transitions. [2021-11-06 17:31:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:31:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-06 17:31:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:31:00,322 INFO L225 Difference]: With dead ends: 25512 [2021-11-06 17:31:00,322 INFO L226 Difference]: Without dead ends: 19725 [2021-11-06 17:31:00,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:31:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19725 states. [2021-11-06 17:31:00,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19725 to 11181. [2021-11-06 17:31:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11181 states, 11161 states have (on average 1.2658363945882984) internal successors, (14128), 11180 states have internal predecessors, (14128), 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) [2021-11-06 17:31:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11181 states to 11181 states and 14128 transitions. [2021-11-06 17:31:00,859 INFO L78 Accepts]: Start accepts. Automaton has 11181 states and 14128 transitions. Word has length 50 [2021-11-06 17:31:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:31:00,861 INFO L470 AbstractCegarLoop]: Abstraction has 11181 states and 14128 transitions. [2021-11-06 17:31:00,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-06 17:31:00,862 INFO L276 IsEmpty]: Start isEmpty. Operand 11181 states and 14128 transitions. [2021-11-06 17:31:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-06 17:31:00,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:31:00,863 INFO L513 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] [2021-11-06 17:31:00,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:31:00,864 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:31:00,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:31:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1221108834, now seen corresponding path program 1 times [2021-11-06 17:31:00,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:31:00,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597560293] [2021-11-06 17:31:00,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:31:00,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:31:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:31:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:31:01,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:31:01,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597560293] [2021-11-06 17:31:01,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597560293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:31:01,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:31:01,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:31:01,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820272084] [2021-11-06 17:31:01,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:31:01,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:31:01,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:31:01,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:31:01,031 INFO L87 Difference]: Start difference. First operand 11181 states and 14128 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-06 17:31:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:31:02,033 INFO L93 Difference]: Finished difference Result 49695 states and 62010 transitions. [2021-11-06 17:31:02,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:31:02,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-06 17:31:02,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:31:02,144 INFO L225 Difference]: With dead ends: 49695 [2021-11-06 17:31:02,144 INFO L226 Difference]: Without dead ends: 38539 [2021-11-06 17:31:02,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:31:02,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38539 states. [2021-11-06 17:31:02,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38539 to 21544. [2021-11-06 17:31:02,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21544 states, 21524 states have (on average 1.26119680356811) internal successors, (27146), 21543 states have internal predecessors, (27146), 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) [2021-11-06 17:31:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21544 states to 21544 states and 27146 transitions. [2021-11-06 17:31:03,028 INFO L78 Accepts]: Start accepts. Automaton has 21544 states and 27146 transitions. Word has length 51 [2021-11-06 17:31:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:31:03,029 INFO L470 AbstractCegarLoop]: Abstraction has 21544 states and 27146 transitions. [2021-11-06 17:31:03,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2021-11-06 17:31:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 21544 states and 27146 transitions. [2021-11-06 17:31:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-06 17:31:03,031 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:31:03,032 INFO L513 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] [2021-11-06 17:31:03,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:31:03,032 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:31:03,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:31:03,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1289218687, now seen corresponding path program 1 times [2021-11-06 17:31:03,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:31:03,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548383086] [2021-11-06 17:31:03,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:31:03,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:31:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:31:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:31:03,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:31:03,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548383086] [2021-11-06 17:31:03,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548383086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:31:03,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:31:03,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:31:03,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899592656] [2021-11-06 17:31:03,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:31:03,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:31:03,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:31:03,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:31:03,174 INFO L87 Difference]: Start difference. First operand 21544 states and 27146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-06 17:31:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:31:04,851 INFO L93 Difference]: Finished difference Result 96928 states and 120700 transitions. [2021-11-06 17:31:04,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:31:04,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-06 17:31:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:31:05,214 INFO L225 Difference]: With dead ends: 96928 [2021-11-06 17:31:05,214 INFO L226 Difference]: Without dead ends: 75409 [2021-11-06 17:31:05,276 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:31:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75409 states. [2021-11-06 17:31:06,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75409 to 41519. [2021-11-06 17:31:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41519 states, 41499 states have (on average 1.256030265789537) internal successors, (52124), 41518 states have internal predecessors, (52124), 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) [2021-11-06 17:31:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41519 states to 41519 states and 52124 transitions. [2021-11-06 17:31:07,114 INFO L78 Accepts]: Start accepts. Automaton has 41519 states and 52124 transitions. Word has length 52 [2021-11-06 17:31:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:31:07,117 INFO L470 AbstractCegarLoop]: Abstraction has 41519 states and 52124 transitions. [2021-11-06 17:31:07,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-06 17:31:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 41519 states and 52124 transitions. [2021-11-06 17:31:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 17:31:07,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:31:07,119 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:31:07,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:31:07,119 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:31:07,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:31:07,120 INFO L85 PathProgramCache]: Analyzing trace with hash 868569317, now seen corresponding path program 1 times [2021-11-06 17:31:07,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:31:07,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891672616] [2021-11-06 17:31:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:31:07,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:31:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:31:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 17:31:07,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:31:07,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891672616] [2021-11-06 17:31:07,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891672616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:31:07,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:31:07,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:31:07,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202497961] [2021-11-06 17:31:07,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 17:31:07,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:31:07,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 17:31:07,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:31:07,274 INFO L87 Difference]: Start difference. First operand 41519 states and 52124 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-06 17:31:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:31:10,219 INFO L93 Difference]: Finished difference Result 138511 states and 172896 transitions. [2021-11-06 17:31:10,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 17:31:10,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 57 [2021-11-06 17:31:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:31:10,439 INFO L225 Difference]: With dead ends: 138511 [2021-11-06 17:31:10,440 INFO L226 Difference]: Without dead ends: 97017 [2021-11-06 17:31:10,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 17:31:10,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97017 states. [2021-11-06 17:31:12,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97017 to 41599. [2021-11-06 17:31:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41599 states, 41579 states have (on average 1.255537651218163) internal successors, (52204), 41598 states have internal predecessors, (52204), 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) [2021-11-06 17:31:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41599 states to 41599 states and 52204 transitions. [2021-11-06 17:31:12,757 INFO L78 Accepts]: Start accepts. Automaton has 41599 states and 52204 transitions. Word has length 57 [2021-11-06 17:31:12,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:31:12,757 INFO L470 AbstractCegarLoop]: Abstraction has 41599 states and 52204 transitions. [2021-11-06 17:31:12,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2021-11-06 17:31:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 41599 states and 52204 transitions. [2021-11-06 17:31:12,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-06 17:31:12,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:31:12,759 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:31:12,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 17:31:12,760 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:31:12,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:31:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash -477338840, now seen corresponding path program 1 times [2021-11-06 17:31:12,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:31:12,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640714378] [2021-11-06 17:31:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:31:12,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:31:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:31:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:31:12,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:31:12,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640714378] [2021-11-06 17:31:12,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640714378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:31:12,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:31:12,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:31:12,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892408061] [2021-11-06 17:31:12,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 17:31:12,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:31:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 17:31:12,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:31:12,957 INFO L87 Difference]: Start difference. First operand 41599 states and 52204 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-06 17:31:18,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:31:18,470 INFO L93 Difference]: Finished difference Result 167665 states and 214157 transitions. [2021-11-06 17:31:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:31:18,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 121 [2021-11-06 17:31:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:31:18,715 INFO L225 Difference]: With dead ends: 167665 [2021-11-06 17:31:18,715 INFO L226 Difference]: Without dead ends: 126091 [2021-11-06 17:31:18,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:31:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126091 states. [2021-11-06 17:31:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126091 to 97851. [2021-11-06 17:31:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97851 states, 97831 states have (on average 1.2803099222127956) internal successors, (125254), 97850 states have internal predecessors, (125254), 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) [2021-11-06 17:31:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97851 states to 97851 states and 125254 transitions. [2021-11-06 17:31:22,592 INFO L78 Accepts]: Start accepts. Automaton has 97851 states and 125254 transitions. Word has length 121 [2021-11-06 17:31:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:31:22,592 INFO L470 AbstractCegarLoop]: Abstraction has 97851 states and 125254 transitions. [2021-11-06 17:31:22,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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) [2021-11-06 17:31:22,592 INFO L276 IsEmpty]: Start isEmpty. Operand 97851 states and 125254 transitions. [2021-11-06 17:31:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-06 17:31:22,594 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:31:22,594 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:31:22,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 17:31:22,594 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-06 17:31:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:31:22,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1306968425, now seen corresponding path program 1 times [2021-11-06 17:31:22,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:31:22,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225957393] [2021-11-06 17:31:22,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:31:22,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:31:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:31:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:31:22,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:31:22,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225957393] [2021-11-06 17:31:22,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225957393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:31:22,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:31:22,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:31:22,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441249224] [2021-11-06 17:31:22,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:31:22,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:31:22,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:31:22,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:31:22,741 INFO L87 Difference]: Start difference. First operand 97851 states and 125254 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2021-11-06 17:31:28,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:31:28,681 INFO L93 Difference]: Finished difference Result 282703 states and 362220 transitions. [2021-11-06 17:31:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:31:28,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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 147 [2021-11-06 17:31:28,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:31:29,242 INFO L225 Difference]: With dead ends: 282703 [2021-11-06 17:31:29,242 INFO L226 Difference]: Without dead ends: 184877 [2021-11-06 17:31:29,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:31:29,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184877 states.