./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--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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--sis--sis900.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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 08:08:30,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:08:30,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:08:30,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:08:30,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:08:30,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:08:30,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:08:30,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:08:30,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:08:30,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:08:30,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:08:30,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:08:30,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:08:30,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:08:30,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:08:30,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:08:30,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:08:30,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:08:30,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:08:30,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:08:30,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:08:30,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:08:30,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:08:30,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:08:30,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:08:30,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:08:30,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:08:30,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:08:30,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:08:30,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:08:30,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:08:30,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:08:30,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:08:30,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:08:30,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:08:30,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:08:30,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:08:30,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:08:30,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:08:30,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:08:30,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:08:30,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:08:30,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:08:30,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:08:30,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:08:30,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:08:30,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:08:30,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:08:30,355 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:08:30,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:08:30,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:08:30,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:08:30,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:08:30,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:08:30,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:08:30,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:08:30,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:08:30,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:08:30,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:08:30,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:08:30,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:08:30,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:08:30,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:08:30,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:08:30,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:08:30,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:08:30,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:08:30,359 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:08:30,359 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:08:30,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:08:30,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:08:30,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2021-11-04 08:08:30,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:08:30,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:08:30,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:08:30,535 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:08:30,536 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:08:30,536 INFO L432 ainManager$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--sis--sis900.ko-entry_point.cil.out.i [2021-11-04 08:08:30,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70228a01/05ccea78b795435ba7a7f66fa77572f8/FLAGd2595a8ac [2021-11-04 08:08:31,208 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:08:31,210 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--sis--sis900.ko-entry_point.cil.out.i [2021-11-04 08:08:31,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70228a01/05ccea78b795435ba7a7f66fa77572f8/FLAGd2595a8ac [2021-11-04 08:08:31,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70228a01/05ccea78b795435ba7a7f66fa77572f8 [2021-11-04 08:08:31,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:08:31,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:08:31,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:08:31,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:08:31,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:08:31,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:08:31" (1/1) ... [2021-11-04 08:08:31,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8697e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:31, skipping insertion in model container [2021-11-04 08:08:31,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:08:31" (1/1) ... [2021-11-04 08:08:31,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:08:31,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:08:32,795 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--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-11-04 08:08:32,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:08:32,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:08:33,168 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--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-11-04 08:08:33,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:08:33,279 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:08:33,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33 WrapperNode [2021-11-04 08:08:33,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:08:33,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:08:33,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:08:33,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:08:33,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:33,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:08:34,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:08:34,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:08:34,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:08:34,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:34,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:35,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:08:35,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:08:35,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:08:35,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:08:35,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (1/1) ... [2021-11-04 08:08:35,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:08:35,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:08:35,297 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) [2021-11-04 08:08:35,375 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 [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:08:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:08:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 08:08:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:08:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:08:38,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 08:08:38,839 INFO L299 CfgBuilder]: Removed 8337 assume(true) statements. [2021-11-04 08:08:38,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:08:38 BoogieIcfgContainer [2021-11-04 08:08:38,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 08:08:38,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 08:08:38,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 08:08:38,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 08:08:38,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:08:31" (1/3) ... [2021-11-04 08:08:38,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77be00c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:08:38, skipping insertion in model container [2021-11-04 08:08:38,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:08:33" (2/3) ... [2021-11-04 08:08:38,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77be00c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:08:38, skipping insertion in model container [2021-11-04 08:08:38,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:08:38" (3/3) ... [2021-11-04 08:08:38,851 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-04 08:08:38,854 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 08:08:38,854 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-04 08:08:38,902 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 08:08:38,907 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 [2021-11-04 08:08:38,907 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-04 08:08:38,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 6378 states, 6358 states have (on average 1.2684806542938032) internal successors, (8065), 6377 states have internal predecessors, (8065), 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) [2021-11-04 08:08:38,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-04 08:08:38,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:08:38,983 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] [2021-11-04 08:08:38,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:08:38,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:08:38,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1268229892, now seen corresponding path program 1 times [2021-11-04 08:08:38,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:08:38,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726673337] [2021-11-04 08:08:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:08:38,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:08:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:08:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:08:39,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:08:39,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726673337] [2021-11-04 08:08:39,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726673337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:08:39,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:08:39,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 08:08:39,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083335483] [2021-11-04 08:08:39,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:08:39,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 08:08:39,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:08:39,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 08:08:39,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 08:08:39,375 INFO L87 Difference]: Start difference. First operand has 6378 states, 6358 states have (on average 1.2684806542938032) internal successors, (8065), 6377 states have internal predecessors, (8065), 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 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-11-04 08:08:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:08:45,843 INFO L93 Difference]: Finished difference Result 12752 states and 16125 transitions. [2021-11-04 08:08:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 08:08:45,845 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2021-11-04 08:08:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:08:45,924 INFO L225 Difference]: With dead ends: 12752 [2021-11-04 08:08:45,925 INFO L226 Difference]: Without dead ends: 6324 [2021-11-04 08:08:45,941 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 [2021-11-04 08:08:45,948 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7947 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4954.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6202.00ms IncrementalHoareTripleChecker+Time [2021-11-04 08:08:45,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 7947 Unknown, 0 Unchecked, 10.39ms Time], IncrementalHoareTripleChecker [0 Valid, 7947 Invalid, 0 Unknown, 0 Unchecked, 6202.00ms Time] [2021-11-04 08:08:45,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6324 states. [2021-11-04 08:08:46,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6324 to 6324. [2021-11-04 08:08:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6324 states, 6305 states have (on average 1.251704996034893) internal successors, (7892), 6323 states have internal predecessors, (7892), 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) [2021-11-04 08:08:46,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6324 states to 6324 states and 7892 transitions. [2021-11-04 08:08:46,095 INFO L78 Accepts]: Start accepts. Automaton has 6324 states and 7892 transitions. Word has length 63 [2021-11-04 08:08:46,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:08:46,095 INFO L470 AbstractCegarLoop]: Abstraction has 6324 states and 7892 transitions. [2021-11-04 08:08:46,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2021-11-04 08:08:46,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6324 states and 7892 transitions. [2021-11-04 08:08:46,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-04 08:08:46,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:08:46,102 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] [2021-11-04 08:08:46,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 08:08:46,103 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:08:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:08:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1356124486, now seen corresponding path program 1 times [2021-11-04 08:08:46,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:08:46,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489376166] [2021-11-04 08:08:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:08:46,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:08:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:08:46,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:08:46,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:08:46,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489376166] [2021-11-04 08:08:46,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489376166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:08:46,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:08:46,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:08:46,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994465952] [2021-11-04 08:08:46,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:08:46,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:08:46,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:08:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:08:46,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:08:46,288 INFO L87 Difference]: Start difference. First operand 6324 states and 7892 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-04 08:08:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:08:54,810 INFO L93 Difference]: Finished difference Result 12624 states and 15763 transitions. [2021-11-04 08:08:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:08:54,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2021-11-04 08:08:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:08:54,828 INFO L225 Difference]: With dead ends: 12624 [2021-11-04 08:08:54,828 INFO L226 Difference]: Without dead ends: 6328 [2021-11-04 08:08:54,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:08:54,844 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 7880 mSDsCounter, 0 mSdLazyCounter, 15780 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6727.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.80ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8221.32ms IncrementalHoareTripleChecker+Time [2021-11-04 08:08:54,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 15786 Unknown, 0 Unchecked, 47.80ms Time], IncrementalHoareTripleChecker [6 Valid, 15780 Invalid, 0 Unknown, 0 Unchecked, 8221.32ms Time] [2021-11-04 08:08:54,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2021-11-04 08:08:54,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 6328. [2021-11-04 08:08:54,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6328 states, 6309 states have (on average 1.251545411317166) internal successors, (7896), 6327 states have internal predecessors, (7896), 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) [2021-11-04 08:08:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6328 states to 6328 states and 7896 transitions. [2021-11-04 08:08:54,974 INFO L78 Accepts]: Start accepts. Automaton has 6328 states and 7896 transitions. Word has length 63 [2021-11-04 08:08:54,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:08:54,975 INFO L470 AbstractCegarLoop]: Abstraction has 6328 states and 7896 transitions. [2021-11-04 08:08:54,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-11-04 08:08:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6328 states and 7896 transitions. [2021-11-04 08:08:54,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-04 08:08:54,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:08:54,979 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] [2021-11-04 08:08:54,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 08:08:54,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:08:54,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:08:54,984 INFO L85 PathProgramCache]: Analyzing trace with hash 380805942, now seen corresponding path program 1 times [2021-11-04 08:08:54,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:08:54,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666721127] [2021-11-04 08:08:54,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:08:54,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:08:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:08:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 08:08:55,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:08:55,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666721127] [2021-11-04 08:08:55,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666721127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:08:55,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:08:55,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:08:55,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107348106] [2021-11-04 08:08:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:08:55,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 08:08:55,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:08:55,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 08:08:55,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 08:08:55,208 INFO L87 Difference]: Start difference. First operand 6328 states and 7896 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-04 08:09:14,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:09:14,402 INFO L93 Difference]: Finished difference Result 29787 states and 37039 transitions. [2021-11-04 08:09:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 08:09:14,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2021-11-04 08:09:14,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:09:14,493 INFO L225 Difference]: With dead ends: 29787 [2021-11-04 08:09:14,493 INFO L226 Difference]: Without dead ends: 23502 [2021-11-04 08:09:14,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.63ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:09:14,514 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 14497 mSDsluCounter, 16073 mSDsCounter, 0 mSdLazyCounter, 37633 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15366.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14497 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.44ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 37633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18387.40ms IncrementalHoareTripleChecker+Time [2021-11-04 08:09:14,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14497 Valid, 0 Invalid, 37644 Unknown, 0 Unchecked, 46.44ms Time], IncrementalHoareTripleChecker [11 Valid, 37633 Invalid, 0 Unknown, 0 Unchecked, 18387.40ms Time] [2021-11-04 08:09:14,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23502 states. [2021-11-04 08:09:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23502 to 11837. [2021-11-04 08:09:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11837 states, 11818 states have (on average 1.2458114740226773) internal successors, (14723), 11836 states have internal predecessors, (14723), 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) [2021-11-04 08:09:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11837 states to 11837 states and 14723 transitions. [2021-11-04 08:09:14,874 INFO L78 Accepts]: Start accepts. Automaton has 11837 states and 14723 transitions. Word has length 67 [2021-11-04 08:09:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:09:14,875 INFO L470 AbstractCegarLoop]: Abstraction has 11837 states and 14723 transitions. [2021-11-04 08:09:14,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-04 08:09:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand 11837 states and 14723 transitions. [2021-11-04 08:09:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-04 08:09:14,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:09:14,879 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] [2021-11-04 08:09:14,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 08:09:14,880 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:09:14,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:09:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash 833737887, now seen corresponding path program 1 times [2021-11-04 08:09:14,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:09:14,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864296608] [2021-11-04 08:09:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:09:14,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:09:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:09:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 08:09:15,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:09:15,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864296608] [2021-11-04 08:09:15,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864296608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:09:15,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:09:15,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:09:15,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21499261] [2021-11-04 08:09:15,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:09:15,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 08:09:15,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:09:15,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 08:09:15,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 08:09:15,041 INFO L87 Difference]: Start difference. First operand 11837 states and 14723 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-04 08:09:32,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:09:32,201 INFO L93 Difference]: Finished difference Result 57332 states and 71176 transitions. [2021-11-04 08:09:32,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 08:09:32,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-04 08:09:32,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:09:32,303 INFO L225 Difference]: With dead ends: 57332 [2021-11-04 08:09:32,303 INFO L226 Difference]: Without dead ends: 45538 [2021-11-04 08:09:32,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.92ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:09:32,339 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 21289 mSDsluCounter, 15702 mSDsCounter, 0 mSdLazyCounter, 30467 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13482.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21289 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 59.30ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 30467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16211.60ms IncrementalHoareTripleChecker+Time [2021-11-04 08:09:32,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21289 Valid, 0 Invalid, 30480 Unknown, 0 Unchecked, 59.30ms Time], IncrementalHoareTripleChecker [13 Valid, 30467 Invalid, 0 Unknown, 0 Unchecked, 16211.60ms Time] [2021-11-04 08:09:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45538 states. [2021-11-04 08:09:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45538 to 23410. [2021-11-04 08:09:33,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23410 states, 23391 states have (on average 1.2452225214826216) internal successors, (29127), 23409 states have internal predecessors, (29127), 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) [2021-11-04 08:09:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23410 states to 23410 states and 29127 transitions. [2021-11-04 08:09:33,100 INFO L78 Accepts]: Start accepts. Automaton has 23410 states and 29127 transitions. Word has length 68 [2021-11-04 08:09:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:09:33,101 INFO L470 AbstractCegarLoop]: Abstraction has 23410 states and 29127 transitions. [2021-11-04 08:09:33,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-04 08:09:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 23410 states and 29127 transitions. [2021-11-04 08:09:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 08:09:33,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:09:33,104 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] [2021-11-04 08:09:33,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 08:09:33,104 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:09:33,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:09:33,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1596699926, now seen corresponding path program 1 times [2021-11-04 08:09:33,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:09:33,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583245955] [2021-11-04 08:09:33,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:09:33,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:09:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:09:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 08:09:33,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:09:33,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583245955] [2021-11-04 08:09:33,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583245955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:09:33,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:09:33,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:09:33,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308063943] [2021-11-04 08:09:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:09:33,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 08:09:33,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:09:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 08:09:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 08:09:33,219 INFO L87 Difference]: Start difference. First operand 23410 states and 29127 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-04 08:09:53,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:09:53,050 INFO L93 Difference]: Finished difference Result 113916 states and 141463 transitions. [2021-11-04 08:09:53,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 08:09:53,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2021-11-04 08:09:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:09:53,242 INFO L225 Difference]: With dead ends: 113916 [2021-11-04 08:09:53,243 INFO L226 Difference]: Without dead ends: 90549 [2021-11-04 08:09:53,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.36ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:09:53,306 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 21295 mSDsluCounter, 15702 mSDsCounter, 0 mSdLazyCounter, 30466 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14923.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21295 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.27ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 30466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18138.43ms IncrementalHoareTripleChecker+Time [2021-11-04 08:09:53,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21295 Valid, 0 Invalid, 30479 Unknown, 0 Unchecked, 50.27ms Time], IncrementalHoareTripleChecker [13 Valid, 30466 Invalid, 0 Unknown, 0 Unchecked, 18138.43ms Time] [2021-11-04 08:09:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90549 states. [2021-11-04 08:09:54,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90549 to 46376. [2021-11-04 08:09:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46376 states, 46357 states have (on average 1.2444506762732706) internal successors, (57689), 46375 states have internal predecessors, (57689), 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) [2021-11-04 08:09:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46376 states to 46376 states and 57689 transitions. [2021-11-04 08:09:54,790 INFO L78 Accepts]: Start accepts. Automaton has 46376 states and 57689 transitions. Word has length 69 [2021-11-04 08:09:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:09:54,791 INFO L470 AbstractCegarLoop]: Abstraction has 46376 states and 57689 transitions. [2021-11-04 08:09:54,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-04 08:09:54,791 INFO L276 IsEmpty]: Start isEmpty. Operand 46376 states and 57689 transitions. [2021-11-04 08:09:54,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-04 08:09:54,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:09:54,795 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] [2021-11-04 08:09:54,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 08:09:54,795 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:09:54,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:09:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash -521279999, now seen corresponding path program 1 times [2021-11-04 08:09:54,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:09:54,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691489163] [2021-11-04 08:09:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:09:54,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:09:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:09:54,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 08:09:54,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:09:54,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691489163] [2021-11-04 08:09:54,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691489163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:09:54,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:09:54,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:09:54,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757451017] [2021-11-04 08:09:54,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:09:54,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 08:09:54,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:09:54,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 08:09:54,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 08:09:54,900 INFO L87 Difference]: Start difference. First operand 46376 states and 57689 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-04 08:10:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:10:15,772 INFO L93 Difference]: Finished difference Result 226540 states and 281291 transitions. [2021-11-04 08:10:15,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 08:10:15,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-04 08:10:15,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:10:16,269 INFO L225 Difference]: With dead ends: 226540 [2021-11-04 08:10:16,269 INFO L226 Difference]: Without dead ends: 180207 [2021-11-04 08:10:16,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.73ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:10:16,383 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 21301 mSDsluCounter, 15702 mSDsCounter, 0 mSdLazyCounter, 30465 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14295.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21301 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.13ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 30465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17073.82ms IncrementalHoareTripleChecker+Time [2021-11-04 08:10:16,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21301 Valid, 0 Invalid, 30478 Unknown, 0 Unchecked, 46.13ms Time], IncrementalHoareTripleChecker [13 Valid, 30465 Invalid, 0 Unknown, 0 Unchecked, 17073.82ms Time] [2021-11-04 08:10:16,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180207 states. [2021-11-04 08:10:19,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180207 to 91947. [2021-11-04 08:10:19,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91947 states, 91928 states have (on average 1.2435710556087374) internal successors, (114319), 91946 states have internal predecessors, (114319), 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) [2021-11-04 08:10:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91947 states to 91947 states and 114319 transitions. [2021-11-04 08:10:19,836 INFO L78 Accepts]: Start accepts. Automaton has 91947 states and 114319 transitions. Word has length 70 [2021-11-04 08:10:19,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:10:19,836 INFO L470 AbstractCegarLoop]: Abstraction has 91947 states and 114319 transitions. [2021-11-04 08:10:19,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-04 08:10:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 91947 states and 114319 transitions. [2021-11-04 08:10:19,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 08:10:19,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:10:19,841 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 08:10:19,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 08:10:19,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:10:19,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:10:19,842 INFO L85 PathProgramCache]: Analyzing trace with hash -384020695, now seen corresponding path program 1 times [2021-11-04 08:10:19,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:10:19,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405858916] [2021-11-04 08:10:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:10:19,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:10:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:10:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-04 08:10:20,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:10:20,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405858916] [2021-11-04 08:10:20,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405858916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:10:20,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:10:20,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 08:10:20,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894304843] [2021-11-04 08:10:20,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:10:20,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 08:10:20,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:10:20,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 08:10:20,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 08:10:20,187 INFO L87 Difference]: Start difference. First operand 91947 states and 114319 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-04 08:10:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:10:48,062 INFO L93 Difference]: Finished difference Result 318467 states and 395591 transitions. [2021-11-04 08:10:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 08:10:48,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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 75 [2021-11-04 08:10:48,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:10:48,849 INFO L225 Difference]: With dead ends: 318467 [2021-11-04 08:10:48,849 INFO L226 Difference]: Without dead ends: 226563 [2021-11-04 08:10:49,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 15.78ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-04 08:10:49,049 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 34952 mSDsluCounter, 31893 mSDsCounter, 0 mSdLazyCounter, 47470 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18396.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34952 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 47502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.28ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 47470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21992.48ms IncrementalHoareTripleChecker+Time [2021-11-04 08:10:49,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34952 Valid, 0 Invalid, 47502 Unknown, 0 Unchecked, 66.28ms Time], IncrementalHoareTripleChecker [32 Valid, 47470 Invalid, 0 Unknown, 0 Unchecked, 21992.48ms Time] [2021-11-04 08:10:49,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226563 states. [2021-11-04 08:10:53,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226563 to 91987. [2021-11-04 08:10:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91987 states, 91968 states have (on average 1.243465118302018) internal successors, (114359), 91986 states have internal predecessors, (114359), 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) [2021-11-04 08:10:53,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91987 states to 91987 states and 114359 transitions. [2021-11-04 08:10:53,653 INFO L78 Accepts]: Start accepts. Automaton has 91987 states and 114359 transitions. Word has length 75 [2021-11-04 08:10:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:10:53,653 INFO L470 AbstractCegarLoop]: Abstraction has 91987 states and 114359 transitions. [2021-11-04 08:10:53,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-11-04 08:10:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 91987 states and 114359 transitions. [2021-11-04 08:10:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-04 08:10:53,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:10:53,657 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] [2021-11-04 08:10:53,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 08:10:53,658 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:10:53,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:10:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash 284178052, now seen corresponding path program 1 times [2021-11-04 08:10:53,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:10:53,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6603950] [2021-11-04 08:10:53,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:10:53,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:10:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:10:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 08:10:53,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:10:53,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6603950] [2021-11-04 08:10:53,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6603950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:10:53,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:10:53,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:10:53,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825350191] [2021-11-04 08:10:53,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:10:53,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:10:53,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:10:53,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:10:53,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:10:53,769 INFO L87 Difference]: Start difference. First operand 91987 states and 114359 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-04 08:11:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:11:08,791 INFO L93 Difference]: Finished difference Result 237351 states and 294531 transitions. [2021-11-04 08:11:08,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:11:08,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2021-11-04 08:11:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:11:09,249 INFO L225 Difference]: With dead ends: 237351 [2021-11-04 08:11:09,250 INFO L226 Difference]: Without dead ends: 145407 [2021-11-04 08:11:09,394 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 [2021-11-04 08:11:09,395 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4903 mSDsluCounter, 7684 mSDsCounter, 0 mSdLazyCounter, 16654 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8168.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4903 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.10ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 16654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9808.13ms IncrementalHoareTripleChecker+Time [2021-11-04 08:11:09,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4903 Valid, 0 Invalid, 16670 Unknown, 0 Unchecked, 17.10ms Time], IncrementalHoareTripleChecker [16 Valid, 16654 Invalid, 0 Unknown, 0 Unchecked, 9808.13ms Time] [2021-11-04 08:11:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145407 states. [2021-11-04 08:11:14,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145407 to 131463. [2021-11-04 08:11:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131463 states, 131444 states have (on average 1.2432899181400445) internal successors, (163423), 131462 states have internal predecessors, (163423), 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) [2021-11-04 08:11:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131463 states to 131463 states and 163423 transitions. [2021-11-04 08:11:14,785 INFO L78 Accepts]: Start accepts. Automaton has 131463 states and 163423 transitions. Word has length 76 [2021-11-04 08:11:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:11:14,786 INFO L470 AbstractCegarLoop]: Abstraction has 131463 states and 163423 transitions. [2021-11-04 08:11:14,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-04 08:11:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 131463 states and 163423 transitions. [2021-11-04 08:11:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 08:11:14,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:11:14,788 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] [2021-11-04 08:11:14,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 08:11:14,788 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-04 08:11:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:11:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1992938488, now seen corresponding path program 1 times [2021-11-04 08:11:14,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:11:14,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807153814] [2021-11-04 08:11:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:11:14,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:11:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:11:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-04 08:11:15,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:11:15,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807153814] [2021-11-04 08:11:15,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807153814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:11:15,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:11:15,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:11:15,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161269114] [2021-11-04 08:11:15,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:11:15,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:11:15,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:11:15,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:11:15,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:11:15,114 INFO L87 Difference]: Start difference. First operand 131463 states and 163423 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 08:11:32,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:11:32,784 INFO L93 Difference]: Finished difference Result 346599 states and 431531 transitions. [2021-11-04 08:11:32,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:11:32,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-04 08:11:32,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:11:33,411 INFO L225 Difference]: With dead ends: 346599 [2021-11-04 08:11:33,412 INFO L226 Difference]: Without dead ends: 215179 [2021-11-04 08:11:33,713 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 [2021-11-04 08:11:33,715 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5480 mSDsluCounter, 7798 mSDsCounter, 0 mSdLazyCounter, 19690 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8755.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5480 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10497.92ms IncrementalHoareTripleChecker+Time [2021-11-04 08:11:33,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5480 Valid, 0 Invalid, 19692 Unknown, 0 Unchecked, 17.93ms Time], IncrementalHoareTripleChecker [2 Valid, 19690 Invalid, 0 Unknown, 0 Unchecked, 10497.92ms Time] [2021-11-04 08:11:33,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215179 states.