./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-32_7a-drivers--net--wireless--prism54--prism54.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-32_7a-drivers--net--wireless--prism54--prism54.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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:50:29,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:50:29,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:50:29,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:50:29,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:50:29,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:50:29,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:50:29,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:50:29,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:50:29,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:50:29,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:50:29,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:50:29,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:50:29,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:50:29,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:50:29,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:50:29,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:50:29,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:50:29,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:50:29,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:50:29,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:50:29,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:50:29,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:50:29,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:50:29,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:50:29,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:50:29,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:50:29,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:50:29,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:50:29,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:50:29,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:50:29,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:50:29,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:50:29,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:50:29,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:50:29,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:50:29,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:50:29,369 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:50:29,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:50:29,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:50:29,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:50:29,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:50:29,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:50:29,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:50:29,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:50:29,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:50:29,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:50:29,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:50:29,394 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:50:29,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:50:29,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:50:29,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:50:29,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:50:29,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:50:29,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:50:29,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:50:29,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:50:29,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:50:29,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:50:29,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:50:29,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:50:29,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:50:29,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:50:29,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:50:29,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:50:29,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:50:29,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:50:29,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:50:29,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:50:29,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:50:29,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:50:29,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2021-11-06 16:50:29,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:50:29,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:50:29,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:50:29,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:50:29,651 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:50:29,652 INFO L432 ainManager$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-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-06 16:50:29,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8c1c5c/21eb1c0005ca4197a175946c50e4744a/FLAG79f998e0b [2021-11-06 16:50:30,573 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:50:30,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-06 16:50:30,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8c1c5c/21eb1c0005ca4197a175946c50e4744a/FLAG79f998e0b [2021-11-06 16:50:30,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b8c1c5c/21eb1c0005ca4197a175946c50e4744a [2021-11-06 16:50:30,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:50:30,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:50:30,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:50:30,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:50:30,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:50:30,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:50:30" (1/1) ... [2021-11-06 16:50:30,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c056457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:30, skipping insertion in model container [2021-11-06 16:50:30,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:50:30" (1/1) ... [2021-11-06 16:50:30,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:50:30,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:50:34,131 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-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-11-06 16:50:34,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:50:34,531 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:50:34,930 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-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-11-06 16:50:34,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:50:35,219 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:50:35,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35 WrapperNode [2021-11-06 16:50:35,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:50:35,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:50:35,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:50:35,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:50:35,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:35,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:36,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:50:36,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:50:36,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:50:36,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:50:36,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:36,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:36,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:36,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:37,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:37,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:37,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:38,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:50:38,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:50:38,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:50:38,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:50:38,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (1/1) ... [2021-11-06 16:50:38,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:50:38,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:50:38,046 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 16:50:38,061 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 16:50:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-06 16:50:38,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-06 16:50:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 16:50:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-06 16:50:38,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-06 16:50:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:50:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:50:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:50:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:50:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:50:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:50:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 16:50:38,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:50:38,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:50:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:51:08,244 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:51:08,245 INFO L299 CfgBuilder]: Removed 7738 assume(true) statements. [2021-11-06 16:51:08,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:51:08 BoogieIcfgContainer [2021-11-06 16:51:08,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:51:08,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:51:08,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:51:08,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:51:08,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:50:30" (1/3) ... [2021-11-06 16:51:08,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e324c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:51:08, skipping insertion in model container [2021-11-06 16:51:08,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:50:35" (2/3) ... [2021-11-06 16:51:08,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e324c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:51:08, skipping insertion in model container [2021-11-06 16:51:08,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:51:08" (3/3) ... [2021-11-06 16:51:08,260 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-06 16:51:08,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:51:08,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2021-11-06 16:51:08,326 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:51:08,330 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 16:51:08,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2021-11-06 16:51:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8357 states have (on average 1.3709465119061863) internal successors, (11457), 8425 states have internal predecessors, (11457), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-06 16:51:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 16:51:08,457 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:08,458 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] [2021-11-06 16:51:08,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:08,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:08,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1087584845, now seen corresponding path program 1 times [2021-11-06 16:51:08,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:08,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820415887] [2021-11-06 16:51:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:08,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:09,282 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 16:51:09,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:09,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820415887] [2021-11-06 16:51:09,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820415887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:09,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:09,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:09,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260720232] [2021-11-06 16:51:09,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:51:09,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:09,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:51:09,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:51:09,320 INFO L87 Difference]: Start difference. First operand has 8448 states, 8357 states have (on average 1.3709465119061863) internal successors, (11457), 8425 states have internal predecessors, (11457), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 16:51:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:09,599 INFO L93 Difference]: Finished difference Result 16892 states and 22989 transitions. [2021-11-06 16:51:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:51:09,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2021-11-06 16:51:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:09,647 INFO L225 Difference]: With dead ends: 16892 [2021-11-06 16:51:09,647 INFO L226 Difference]: Without dead ends: 7905 [2021-11-06 16:51:09,672 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 16:51:09,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7905 states. [2021-11-06 16:51:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7905 to 7905. [2021-11-06 16:51:09,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7905 states, 7815 states have (on average 1.3065898912348048) internal successors, (10211), 7882 states have internal predecessors, (10211), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-06 16:51:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7905 states to 7905 states and 10251 transitions. [2021-11-06 16:51:10,211 INFO L78 Accepts]: Start accepts. Automaton has 7905 states and 10251 transitions. Word has length 30 [2021-11-06 16:51:10,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:10,212 INFO L470 AbstractCegarLoop]: Abstraction has 7905 states and 10251 transitions. [2021-11-06 16:51:10,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 16:51:10,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7905 states and 10251 transitions. [2021-11-06 16:51:10,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 16:51:10,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:10,220 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] [2021-11-06 16:51:10,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:51:10,220 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash 835643189, now seen corresponding path program 1 times [2021-11-06 16:51:10,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:10,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300253259] [2021-11-06 16:51:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:10,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:10,683 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 16:51:10,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:10,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300253259] [2021-11-06 16:51:10,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300253259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:10,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:10,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:51:10,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123439877] [2021-11-06 16:51:10,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:10,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:10,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:10,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:10,688 INFO L87 Difference]: Start difference. First operand 7905 states and 10251 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 16:51:13,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:13,569 INFO L93 Difference]: Finished difference Result 23654 states and 30689 transitions. [2021-11-06 16:51:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:13,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-06 16:51:13,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:13,638 INFO L225 Difference]: With dead ends: 23654 [2021-11-06 16:51:13,638 INFO L226 Difference]: Without dead ends: 15762 [2021-11-06 16:51:13,657 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 16:51:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15762 states. [2021-11-06 16:51:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15762 to 15640. [2021-11-06 16:51:13,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15640 states, 15528 states have (on average 1.3078310149407522) internal successors, (20308), 15595 states have internal predecessors, (20308), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-06 16:51:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15640 states to 15640 states and 20388 transitions. [2021-11-06 16:51:14,035 INFO L78 Accepts]: Start accepts. Automaton has 15640 states and 20388 transitions. Word has length 30 [2021-11-06 16:51:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:14,036 INFO L470 AbstractCegarLoop]: Abstraction has 15640 states and 20388 transitions. [2021-11-06 16:51:14,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 16:51:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 15640 states and 20388 transitions. [2021-11-06 16:51:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-06 16:51:14,042 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:14,042 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] [2021-11-06 16:51:14,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:51:14,042 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:14,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2125490031, now seen corresponding path program 1 times [2021-11-06 16:51:14,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:14,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435594884] [2021-11-06 16:51:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:14,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:14,602 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 16:51:14,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:14,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435594884] [2021-11-06 16:51:14,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435594884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:14,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:14,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:51:14,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908176667] [2021-11-06 16:51:14,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:14,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:14,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:14,606 INFO L87 Difference]: Start difference. First operand 15640 states and 20388 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 16:51:15,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:15,454 INFO L93 Difference]: Finished difference Result 46812 states and 61028 transitions. [2021-11-06 16:51:15,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:15,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-06 16:51:15,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:15,542 INFO L225 Difference]: With dead ends: 46812 [2021-11-06 16:51:15,543 INFO L226 Difference]: Without dead ends: 31185 [2021-11-06 16:51:15,579 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 16:51:15,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31185 states. [2021-11-06 16:51:16,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31185 to 31043. [2021-11-06 16:51:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31043 states, 30887 states have (on average 1.3083174150937287) internal successors, (40410), 30954 states have internal predecessors, (40410), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-06 16:51:16,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31043 states to 31043 states and 40570 transitions. [2021-11-06 16:51:16,373 INFO L78 Accepts]: Start accepts. Automaton has 31043 states and 40570 transitions. Word has length 30 [2021-11-06 16:51:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:16,374 INFO L470 AbstractCegarLoop]: Abstraction has 31043 states and 40570 transitions. [2021-11-06 16:51:16,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 16:51:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 31043 states and 40570 transitions. [2021-11-06 16:51:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-06 16:51:16,377 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:16,377 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 16:51:16,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:51:16,378 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash 935321167, now seen corresponding path program 1 times [2021-11-06 16:51:16,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:16,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418058722] [2021-11-06 16:51:16,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:16,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:16,983 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 16:51:16,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:16,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418058722] [2021-11-06 16:51:16,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418058722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:16,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:16,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:16,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354847691] [2021-11-06 16:51:16,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:16,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:16,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:16,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:16,986 INFO L87 Difference]: Start difference. First operand 31043 states and 40570 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) 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 16:51:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:17,459 INFO L93 Difference]: Finished difference Result 31043 states and 40570 transitions. [2021-11-06 16:51:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:17,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) 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 16:51:17,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:17,544 INFO L225 Difference]: With dead ends: 31043 [2021-11-06 16:51:17,545 INFO L226 Difference]: Without dead ends: 31041 [2021-11-06 16:51:17,564 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:17,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31041 states. [2021-11-06 16:51:18,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31041 to 31041. [2021-11-06 16:51:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31041 states, 30886 states have (on average 1.3082950203975912) internal successors, (40408), 30952 states have internal predecessors, (40408), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-06 16:51:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31041 states to 31041 states and 40568 transitions. [2021-11-06 16:51:18,344 INFO L78 Accepts]: Start accepts. Automaton has 31041 states and 40568 transitions. Word has length 38 [2021-11-06 16:51:18,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:18,345 INFO L470 AbstractCegarLoop]: Abstraction has 31041 states and 40568 transitions. [2021-11-06 16:51:18,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) 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 16:51:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 31041 states and 40568 transitions. [2021-11-06 16:51:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 16:51:18,346 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:18,346 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] [2021-11-06 16:51:18,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:51:18,348 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:18,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:18,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1069782463, now seen corresponding path program 1 times [2021-11-06 16:51:18,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:18,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579646209] [2021-11-06 16:51:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:18,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:18,750 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 16:51:18,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:18,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579646209] [2021-11-06 16:51:18,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579646209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:18,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:18,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:18,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415405914] [2021-11-06 16:51:18,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:18,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:18,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:18,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:18,753 INFO L87 Difference]: Start difference. First operand 31041 states and 40568 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 16:51:19,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:19,264 INFO L93 Difference]: Finished difference Result 31041 states and 40568 transitions. [2021-11-06 16:51:19,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:19,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-11-06 16:51:19,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:19,348 INFO L225 Difference]: With dead ends: 31041 [2021-11-06 16:51:19,348 INFO L226 Difference]: Without dead ends: 31039 [2021-11-06 16:51:19,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31039 states. [2021-11-06 16:51:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31039 to 31039. [2021-11-06 16:51:20,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31039 states, 30885 states have (on average 1.3082726242512546) internal successors, (40406), 30950 states have internal predecessors, (40406), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-06 16:51:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31039 states to 31039 states and 40566 transitions. [2021-11-06 16:51:20,366 INFO L78 Accepts]: Start accepts. Automaton has 31039 states and 40566 transitions. Word has length 39 [2021-11-06 16:51:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:20,369 INFO L470 AbstractCegarLoop]: Abstraction has 31039 states and 40566 transitions. [2021-11-06 16:51:20,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 16:51:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 31039 states and 40566 transitions. [2021-11-06 16:51:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 16:51:20,371 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:20,371 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] [2021-11-06 16:51:20,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:51:20,373 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1196514457, now seen corresponding path program 1 times [2021-11-06 16:51:20,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:20,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057223884] [2021-11-06 16:51:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:20,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:20,744 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 16:51:20,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:20,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057223884] [2021-11-06 16:51:20,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057223884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:20,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:20,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:20,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77637629] [2021-11-06 16:51:20,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:20,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:20,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:20,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:20,749 INFO L87 Difference]: Start difference. First operand 31039 states and 40566 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 16:51:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:21,470 INFO L93 Difference]: Finished difference Result 31039 states and 40566 transitions. [2021-11-06 16:51:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:21,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-06 16:51:21,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:21,542 INFO L225 Difference]: With dead ends: 31039 [2021-11-06 16:51:21,542 INFO L226 Difference]: Without dead ends: 31023 [2021-11-06 16:51:21,557 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31023 states. [2021-11-06 16:51:22,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31023 to 31023. [2021-11-06 16:51:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31023 states, 30877 states have (on average 1.3074132849693947) internal successors, (40369), 30934 states have internal predecessors, (40369), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-06 16:51:22,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31023 states to 31023 states and 40529 transitions. [2021-11-06 16:51:22,409 INFO L78 Accepts]: Start accepts. Automaton has 31023 states and 40529 transitions. Word has length 40 [2021-11-06 16:51:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:22,410 INFO L470 AbstractCegarLoop]: Abstraction has 31023 states and 40529 transitions. [2021-11-06 16:51:22,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 16:51:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 31023 states and 40529 transitions. [2021-11-06 16:51:22,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-06 16:51:22,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:22,412 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] [2021-11-06 16:51:22,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:51:22,413 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:22,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:22,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1562725045, now seen corresponding path program 1 times [2021-11-06 16:51:22,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:22,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762421308] [2021-11-06 16:51:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:22,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:22,966 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 16:51:22,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:22,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762421308] [2021-11-06 16:51:22,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762421308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:22,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:22,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:22,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039173300] [2021-11-06 16:51:22,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:22,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:22,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:22,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:22,969 INFO L87 Difference]: Start difference. First operand 31023 states and 40529 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 16:51:24,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:24,590 INFO L93 Difference]: Finished difference Result 92538 states and 120999 transitions. [2021-11-06 16:51:24,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:24,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-06 16:51:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:24,766 INFO L225 Difference]: With dead ends: 92538 [2021-11-06 16:51:24,766 INFO L226 Difference]: Without dead ends: 61528 [2021-11-06 16:51:24,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:24,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61528 states. [2021-11-06 16:51:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61528 to 55872. [2021-11-06 16:51:26,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55872 states, 55638 states have (on average 1.308350407994536) internal successors, (72794), 55695 states have internal predecessors, (72794), 160 states have call successors, (160), 16 states have call predecessors, (160), 16 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-06 16:51:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55872 states to 55872 states and 73114 transitions. [2021-11-06 16:51:26,600 INFO L78 Accepts]: Start accepts. Automaton has 55872 states and 73114 transitions. Word has length 41 [2021-11-06 16:51:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:26,601 INFO L470 AbstractCegarLoop]: Abstraction has 55872 states and 73114 transitions. [2021-11-06 16:51:26,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 16:51:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 55872 states and 73114 transitions. [2021-11-06 16:51:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 16:51:26,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:26,604 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] [2021-11-06 16:51:26,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 16:51:26,604 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:26,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1199803677, now seen corresponding path program 1 times [2021-11-06 16:51:26,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:26,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262135690] [2021-11-06 16:51:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:26,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:26,966 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 16:51:26,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:26,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262135690] [2021-11-06 16:51:26,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262135690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:26,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:26,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:26,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239163822] [2021-11-06 16:51:26,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:26,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:26,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:26,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:26,969 INFO L87 Difference]: Start difference. First operand 55872 states and 73114 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 16:51:28,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:28,153 INFO L93 Difference]: Finished difference Result 55872 states and 73114 transitions. [2021-11-06 16:51:28,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:28,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-11-06 16:51:28,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:28,298 INFO L225 Difference]: With dead ends: 55872 [2021-11-06 16:51:28,298 INFO L226 Difference]: Without dead ends: 55870 [2021-11-06 16:51:28,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55870 states. [2021-11-06 16:51:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55870 to 55870. [2021-11-06 16:51:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55870 states, 55637 states have (on average 1.3083379765264123) internal successors, (72792), 55693 states have internal predecessors, (72792), 160 states have call successors, (160), 16 states have call predecessors, (160), 16 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-06 16:51:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55870 states to 55870 states and 73112 transitions. [2021-11-06 16:51:29,841 INFO L78 Accepts]: Start accepts. Automaton has 55870 states and 73112 transitions. Word has length 42 [2021-11-06 16:51:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:29,842 INFO L470 AbstractCegarLoop]: Abstraction has 55870 states and 73112 transitions. [2021-11-06 16:51:29,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 16:51:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 55870 states and 73112 transitions. [2021-11-06 16:51:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-06 16:51:29,846 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:29,846 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] [2021-11-06 16:51:29,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 16:51:29,848 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:29,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1460824149, now seen corresponding path program 1 times [2021-11-06 16:51:29,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:29,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535077462] [2021-11-06 16:51:29,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:29,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:30,222 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 16:51:30,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:30,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535077462] [2021-11-06 16:51:30,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535077462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:30,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:30,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:30,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618839765] [2021-11-06 16:51:30,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:30,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:30,226 INFO L87 Difference]: Start difference. First operand 55870 states and 73112 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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 16:51:32,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:32,798 INFO L93 Difference]: Finished difference Result 167557 states and 219280 transitions. [2021-11-06 16:51:32,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:32,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2021-11-06 16:51:32,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:33,102 INFO L225 Difference]: With dead ends: 167557 [2021-11-06 16:51:33,103 INFO L226 Difference]: Without dead ends: 111700 [2021-11-06 16:51:33,207 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:33,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111700 states. [2021-11-06 16:51:35,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111700 to 109712. [2021-11-06 16:51:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109712 states, 109303 states have (on average 1.308847881576901) internal successors, (143061), 109359 states have internal predecessors, (143061), 320 states have call successors, (320), 32 states have call predecessors, (320), 32 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2021-11-06 16:51:36,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109712 states to 109712 states and 143701 transitions. [2021-11-06 16:51:36,035 INFO L78 Accepts]: Start accepts. Automaton has 109712 states and 143701 transitions. Word has length 43 [2021-11-06 16:51:36,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:51:36,035 INFO L470 AbstractCegarLoop]: Abstraction has 109712 states and 143701 transitions. [2021-11-06 16:51:36,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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 16:51:36,035 INFO L276 IsEmpty]: Start isEmpty. Operand 109712 states and 143701 transitions. [2021-11-06 16:51:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 16:51:36,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:51:36,038 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] [2021-11-06 16:51:36,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 16:51:36,038 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-06 16:51:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:51:36,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1959059155, now seen corresponding path program 1 times [2021-11-06 16:51:36,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:51:36,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867170308] [2021-11-06 16:51:36,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:51:36,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:51:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:51:36,396 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 16:51:36,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:51:36,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867170308] [2021-11-06 16:51:36,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867170308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:51:36,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:51:36,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:51:36,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466666264] [2021-11-06 16:51:36,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:51:36,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:51:36,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:51:36,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:36,399 INFO L87 Difference]: Start difference. First operand 109712 states and 143701 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 16:51:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:51:38,395 INFO L93 Difference]: Finished difference Result 109712 states and 143701 transitions. [2021-11-06 16:51:38,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:51:38,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-06 16:51:38,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:51:38,670 INFO L225 Difference]: With dead ends: 109712 [2021-11-06 16:51:38,671 INFO L226 Difference]: Without dead ends: 109700 [2021-11-06 16:51:38,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:51:38,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109700 states.