./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--gpu--drm--mgag200--mgag200.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--gpu--drm--mgag200--mgag200.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 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 16:25:02,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 16:25:02,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 16:25:02,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 16:25:02,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 16:25:02,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 16:25:02,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 16:25:02,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 16:25:02,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 16:25:02,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 16:25:02,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 16:25:02,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 16:25:02,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 16:25:02,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 16:25:02,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 16:25:02,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 16:25:02,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 16:25:02,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 16:25:02,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 16:25:02,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 16:25:02,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 16:25:02,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 16:25:02,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 16:25:02,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 16:25:02,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 16:25:02,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 16:25:02,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 16:25:02,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 16:25:02,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 16:25:02,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 16:25:02,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 16:25:02,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 16:25:02,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 16:25:02,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 16:25:02,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 16:25:02,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 16:25:02,366 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 16:25:02,366 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 16:25:02,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 16:25:02,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 16:25:02,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 16:25:02,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 16:25:02,384 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 16:25:02,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 16:25:02,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 16:25:02,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 16:25:02,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 16:25:02,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 16:25:02,387 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 16:25:02,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 16:25:02,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 16:25:02,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 16:25:02,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 16:25:02,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 16:25:02,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 16:25:02,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 16:25:02,389 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 16:25:02,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 16:25:02,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 16:25:02,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 16:25:02,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 16:25:02,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:25:02,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 16:25:02,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 16:25:02,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 16:25:02,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 16:25:02,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 16:25:02,391 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 16:25:02,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 16:25:02,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 16:25:02,392 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 16:25:02,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d3fedd3393c9ef9037d23202ca807e49e09d9211ff455e3da7db836a65b4737 [2021-11-06 16:25:02,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 16:25:02,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 16:25:02,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 16:25:02,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 16:25:02,630 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 16:25:02,631 INFO L432 ainManager$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--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2021-11-06 16:25:02,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019bd5cfa/f1a0bee78ca442b09a147bf726ba6877/FLAG28c07cc4c [2021-11-06 16:25:03,417 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 16:25:03,418 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--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2021-11-06 16:25:03,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019bd5cfa/f1a0bee78ca442b09a147bf726ba6877/FLAG28c07cc4c [2021-11-06 16:25:03,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/019bd5cfa/f1a0bee78ca442b09a147bf726ba6877 [2021-11-06 16:25:03,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 16:25:03,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 16:25:03,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 16:25:03,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 16:25:03,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 16:25:03,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:25:03" (1/1) ... [2021-11-06 16:25:03,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cb4ae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:03, skipping insertion in model container [2021-11-06 16:25:03,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:25:03" (1/1) ... [2021-11-06 16:25:03,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 16:25:03,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 16:25:06,790 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--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i[367278,367291] [2021-11-06 16:25:07,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:25:07,201 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 16:25:07,568 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--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i[367278,367291] [2021-11-06 16:25:07,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 16:25:07,778 INFO L208 MainTranslator]: Completed translation [2021-11-06 16:25:07,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07 WrapperNode [2021-11-06 16:25:07,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 16:25:07,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 16:25:07,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 16:25:07,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 16:25:07,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:07,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:08,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 16:25:08,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 16:25:08,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 16:25:08,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 16:25:08,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:08,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:09,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:09,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:09,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:09,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:09,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:10,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 16:25:10,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 16:25:10,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 16:25:10,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 16:25:10,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (1/1) ... [2021-11-06 16:25:10,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 16:25:10,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 16:25:10,132 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 16:25:10,140 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 16:25:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 16:25:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 16:25:10,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 16:25:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 16:25:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 16:25:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 16:25:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 16:25:10,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 16:25:10,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 16:25:10,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 16:25:10,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 16:25:53,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 16:25:53,819 INFO L299 CfgBuilder]: Removed 8054 assume(true) statements. [2021-11-06 16:25:53,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:25:53 BoogieIcfgContainer [2021-11-06 16:25:53,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 16:25:53,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 16:25:53,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 16:25:53,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 16:25:53,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:25:03" (1/3) ... [2021-11-06 16:25:53,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a326fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:25:53, skipping insertion in model container [2021-11-06 16:25:53,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:25:07" (2/3) ... [2021-11-06 16:25:53,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a326fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:25:53, skipping insertion in model container [2021-11-06 16:25:53,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:25:53" (3/3) ... [2021-11-06 16:25:53,846 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--mgag200--mgag200.ko-entry_point.cil.out.i [2021-11-06 16:25:53,849 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 16:25:53,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 108 error locations. [2021-11-06 16:25:53,901 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 16:25:53,906 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 16:25:53,907 INFO L340 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2021-11-06 16:25:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 7010 states, 6901 states have (on average 1.3595131140414434) internal successors, (9382), 7009 states have internal predecessors, (9382), 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 16:25:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 16:25:53,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:25:53,990 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:25:53,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:25:53,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:25:53,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1984148282, now seen corresponding path program 1 times [2021-11-06 16:25:54,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:25:54,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169282514] [2021-11-06 16:25:54,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:25:54,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:25:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:25:54,467 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 16:25:54,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:25:54,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169282514] [2021-11-06 16:25:54,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169282514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:25:54,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:25:54,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:25:54,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960873486] [2021-11-06 16:25:54,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 16:25:54,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:25:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 16:25:54,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 16:25:54,502 INFO L87 Difference]: Start difference. First operand has 7010 states, 6901 states have (on average 1.3595131140414434) internal successors, (9382), 7009 states have internal predecessors, (9382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 16:25:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:25:54,705 INFO L93 Difference]: Finished difference Result 14016 states and 18759 transitions. [2021-11-06 16:25:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 16:25:54,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 [2021-11-06 16:25:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:25:54,748 INFO L225 Difference]: With dead ends: 14016 [2021-11-06 16:25:54,749 INFO L226 Difference]: Without dead ends: 6968 [2021-11-06 16:25:54,766 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 16:25:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6968 states. [2021-11-06 16:25:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6968 to 6968. [2021-11-06 16:25:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6968 states, 6860 states have (on average 1.3276967930029155) internal successors, (9108), 6967 states have internal predecessors, (9108), 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 16:25:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6968 states to 6968 states and 9108 transitions. [2021-11-06 16:25:54,961 INFO L78 Accepts]: Start accepts. Automaton has 6968 states and 9108 transitions. Word has length 75 [2021-11-06 16:25:54,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:25:54,962 INFO L470 AbstractCegarLoop]: Abstraction has 6968 states and 9108 transitions. [2021-11-06 16:25:54,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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 16:25:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 6968 states and 9108 transitions. [2021-11-06 16:25:54,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 16:25:54,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:25:54,964 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:25:54,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 16:25:54,965 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:25:54,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:25:54,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1202098068, now seen corresponding path program 1 times [2021-11-06 16:25:54,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:25:54,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474208862] [2021-11-06 16:25:54,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:25:54,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:25:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:25:55,209 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 16:25:55,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:25:55,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474208862] [2021-11-06 16:25:55,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474208862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:25:55,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:25:55,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:25:55,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927303330] [2021-11-06 16:25:55,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:25:55,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:25:55,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:25:55,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:25:55,211 INFO L87 Difference]: Start difference. First operand 6968 states and 9108 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 16:25:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:25:57,384 INFO L93 Difference]: Finished difference Result 20660 states and 27062 transitions. [2021-11-06 16:25:57,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:25:57,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 [2021-11-06 16:25:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:25:57,435 INFO L225 Difference]: With dead ends: 20660 [2021-11-06 16:25:57,435 INFO L226 Difference]: Without dead ends: 13755 [2021-11-06 16:25:57,451 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 16:25:57,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13755 states. [2021-11-06 16:25:57,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13755 to 13553. [2021-11-06 16:25:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13553 states, 13445 states have (on average 1.332911863146151) internal successors, (17921), 13552 states have internal predecessors, (17921), 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 16:25:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 17921 transitions. [2021-11-06 16:25:57,762 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 17921 transitions. Word has length 75 [2021-11-06 16:25:57,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:25:57,762 INFO L470 AbstractCegarLoop]: Abstraction has 13553 states and 17921 transitions. [2021-11-06 16:25:57,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 16:25:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 17921 transitions. [2021-11-06 16:25:57,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 16:25:57,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:25:57,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:25:57,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 16:25:57,770 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:25:57,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:25:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1345510392, now seen corresponding path program 1 times [2021-11-06 16:25:57,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:25:57,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763974930] [2021-11-06 16:25:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:25:57,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:25:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:25:58,227 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 16:25:58,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:25:58,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763974930] [2021-11-06 16:25:58,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763974930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:25:58,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:25:58,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:25:58,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355570693] [2021-11-06 16:25:58,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:25:58,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:25:58,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:25:58,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:25:58,233 INFO L87 Difference]: Start difference. First operand 13553 states and 17921 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 16:26:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:00,847 INFO L93 Difference]: Finished difference Result 38998 states and 51600 transitions. [2021-11-06 16:26:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:00,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-06 16:26:00,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:00,937 INFO L225 Difference]: With dead ends: 38998 [2021-11-06 16:26:00,937 INFO L226 Difference]: Without dead ends: 25508 [2021-11-06 16:26:00,966 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 16:26:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25508 states. [2021-11-06 16:26:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25508 to 25228. [2021-11-06 16:26:01,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25228 states, 25120 states have (on average 1.3358678343949044) internal successors, (33557), 25227 states have internal predecessors, (33557), 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 16:26:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25228 states to 25228 states and 33557 transitions. [2021-11-06 16:26:01,497 INFO L78 Accepts]: Start accepts. Automaton has 25228 states and 33557 transitions. Word has length 78 [2021-11-06 16:26:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:01,498 INFO L470 AbstractCegarLoop]: Abstraction has 25228 states and 33557 transitions. [2021-11-06 16:26:01,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 16:26:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 25228 states and 33557 transitions. [2021-11-06 16:26:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 16:26:01,500 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:01,501 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:01,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 16:26:01,501 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr101ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:01,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:01,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1731963748, now seen corresponding path program 1 times [2021-11-06 16:26:01,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:01,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959795278] [2021-11-06 16:26:01,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:01,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:01,767 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 16:26:01,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:01,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959795278] [2021-11-06 16:26:01,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959795278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:01,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:01,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:01,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592340955] [2021-11-06 16:26:01,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:01,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:01,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:01,774 INFO L87 Difference]: Start difference. First operand 25228 states and 33557 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 16:26:03,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:03,223 INFO L93 Difference]: Finished difference Result 49493 states and 65948 transitions. [2021-11-06 16:26:03,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:03,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2021-11-06 16:26:03,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:03,373 INFO L225 Difference]: With dead ends: 49493 [2021-11-06 16:26:03,373 INFO L226 Difference]: Without dead ends: 49341 [2021-11-06 16:26:03,396 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 16:26:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49341 states. [2021-11-06 16:26:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49341 to 49289. [2021-11-06 16:26:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49289 states, 49181 states have (on average 1.3328521176877248) internal successors, (65551), 49288 states have internal predecessors, (65551), 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 16:26:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49289 states to 49289 states and 65551 transitions. [2021-11-06 16:26:04,810 INFO L78 Accepts]: Start accepts. Automaton has 49289 states and 65551 transitions. Word has length 80 [2021-11-06 16:26:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:04,810 INFO L470 AbstractCegarLoop]: Abstraction has 49289 states and 65551 transitions. [2021-11-06 16:26:04,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 16:26:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 49289 states and 65551 transitions. [2021-11-06 16:26:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 16:26:04,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:04,812 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:04,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 16:26:04,812 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:04,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:04,812 INFO L85 PathProgramCache]: Analyzing trace with hash -2143670454, now seen corresponding path program 1 times [2021-11-06 16:26:04,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:04,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645801814] [2021-11-06 16:26:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:04,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:05,053 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 16:26:05,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:05,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645801814] [2021-11-06 16:26:05,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645801814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:05,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:05,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:05,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675535680] [2021-11-06 16:26:05,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:05,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:05,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:05,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:05,055 INFO L87 Difference]: Start difference. First operand 49289 states and 65551 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 16:26:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:05,676 INFO L93 Difference]: Finished difference Result 49289 states and 65551 transitions. [2021-11-06 16:26:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2021-11-06 16:26:05,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:05,790 INFO L225 Difference]: With dead ends: 49289 [2021-11-06 16:26:05,791 INFO L226 Difference]: Without dead ends: 49287 [2021-11-06 16:26:05,813 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 16:26:05,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49287 states. [2021-11-06 16:26:06,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49287 to 49287. [2021-11-06 16:26:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49287 states, 49180 states have (on average 1.332838552257015) internal successors, (65549), 49286 states have internal predecessors, (65549), 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 16:26:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49287 states to 49287 states and 65549 transitions. [2021-11-06 16:26:07,020 INFO L78 Accepts]: Start accepts. Automaton has 49287 states and 65549 transitions. Word has length 81 [2021-11-06 16:26:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:07,021 INFO L470 AbstractCegarLoop]: Abstraction has 49287 states and 65549 transitions. [2021-11-06 16:26:07,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 16:26:07,022 INFO L276 IsEmpty]: Start isEmpty. Operand 49287 states and 65549 transitions. [2021-11-06 16:26:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 16:26:07,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:07,026 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:07,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 16:26:07,027 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr103ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2029246418, now seen corresponding path program 1 times [2021-11-06 16:26:07,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:07,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233512977] [2021-11-06 16:26:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:07,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:07,244 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 16:26:07,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:07,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233512977] [2021-11-06 16:26:07,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233512977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:07,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:07,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:07,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108832517] [2021-11-06 16:26:07,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:07,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:07,245 INFO L87 Difference]: Start difference. First operand 49287 states and 65549 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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 16:26:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:07,876 INFO L93 Difference]: Finished difference Result 49287 states and 65549 transitions. [2021-11-06 16:26:07,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:07,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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 82 [2021-11-06 16:26:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:07,989 INFO L225 Difference]: With dead ends: 49287 [2021-11-06 16:26:07,989 INFO L226 Difference]: Without dead ends: 49285 [2021-11-06 16:26:08,010 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 16:26:08,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49285 states. [2021-11-06 16:26:08,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49285 to 49285. [2021-11-06 16:26:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49285 states, 49179 states have (on average 1.3328249862746293) internal successors, (65547), 49284 states have internal predecessors, (65547), 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 16:26:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49285 states to 49285 states and 65547 transitions. [2021-11-06 16:26:09,187 INFO L78 Accepts]: Start accepts. Automaton has 49285 states and 65547 transitions. Word has length 82 [2021-11-06 16:26:09,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:09,188 INFO L470 AbstractCegarLoop]: Abstraction has 49285 states and 65547 transitions. [2021-11-06 16:26:09,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 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 16:26:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 49285 states and 65547 transitions. [2021-11-06 16:26:09,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 16:26:09,189 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:09,189 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:09,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 16:26:09,190 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr104ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:09,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1517898708, now seen corresponding path program 1 times [2021-11-06 16:26:09,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:09,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640461988] [2021-11-06 16:26:09,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:09,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:09,418 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 16:26:09,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:09,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640461988] [2021-11-06 16:26:09,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640461988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:09,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:09,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:09,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830557827] [2021-11-06 16:26:09,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:09,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:09,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:09,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:09,420 INFO L87 Difference]: Start difference. First operand 49285 states and 65547 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:26:10,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:10,199 INFO L93 Difference]: Finished difference Result 49285 states and 65547 transitions. [2021-11-06 16:26:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:10,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-06 16:26:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:10,316 INFO L225 Difference]: With dead ends: 49285 [2021-11-06 16:26:10,317 INFO L226 Difference]: Without dead ends: 49283 [2021-11-06 16:26:10,338 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 16:26:10,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49283 states. [2021-11-06 16:26:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49283 to 49283. [2021-11-06 16:26:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49283 states, 49178 states have (on average 1.3328114197405343) internal successors, (65545), 49282 states have internal predecessors, (65545), 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 16:26:11,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49283 states to 49283 states and 65545 transitions. [2021-11-06 16:26:11,584 INFO L78 Accepts]: Start accepts. Automaton has 49283 states and 65545 transitions. Word has length 83 [2021-11-06 16:26:11,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:11,585 INFO L470 AbstractCegarLoop]: Abstraction has 49283 states and 65545 transitions. [2021-11-06 16:26:11,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 16:26:11,586 INFO L276 IsEmpty]: Start isEmpty. Operand 49283 states and 65545 transitions. [2021-11-06 16:26:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 16:26:11,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:11,587 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:11,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 16:26:11,588 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr105ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:11,588 INFO L85 PathProgramCache]: Analyzing trace with hash -189752072, now seen corresponding path program 1 times [2021-11-06 16:26:11,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:11,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851471240] [2021-11-06 16:26:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:11,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:11,877 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 16:26:11,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:11,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851471240] [2021-11-06 16:26:11,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851471240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:11,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:11,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:11,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099414092] [2021-11-06 16:26:11,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:11,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:11,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:11,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:11,879 INFO L87 Difference]: Start difference. First operand 49283 states and 65545 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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 16:26:12,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:12,714 INFO L93 Difference]: Finished difference Result 49283 states and 65545 transitions. [2021-11-06 16:26:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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 84 [2021-11-06 16:26:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:12,806 INFO L225 Difference]: With dead ends: 49283 [2021-11-06 16:26:12,806 INFO L226 Difference]: Without dead ends: 49281 [2021-11-06 16:26:12,822 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 16:26:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49281 states. [2021-11-06 16:26:13,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49281 to 49281. [2021-11-06 16:26:13,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49281 states, 49177 states have (on average 1.3327978526546962) internal successors, (65543), 49280 states have internal predecessors, (65543), 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 16:26:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49281 states to 49281 states and 65543 transitions. [2021-11-06 16:26:14,203 INFO L78 Accepts]: Start accepts. Automaton has 49281 states and 65543 transitions. Word has length 84 [2021-11-06 16:26:14,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:14,203 INFO L470 AbstractCegarLoop]: Abstraction has 49281 states and 65543 transitions. [2021-11-06 16:26:14,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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 16:26:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 49281 states and 65543 transitions. [2021-11-06 16:26:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 16:26:14,208 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:14,208 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:14,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 16:26:14,208 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr106ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:14,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:14,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1587318690, now seen corresponding path program 1 times [2021-11-06 16:26:14,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:14,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229083116] [2021-11-06 16:26:14,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:14,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:14,401 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 16:26:14,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:14,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229083116] [2021-11-06 16:26:14,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229083116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:14,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:14,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:14,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245406586] [2021-11-06 16:26:14,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:14,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:14,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:14,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:14,405 INFO L87 Difference]: Start difference. First operand 49281 states and 65543 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 16:26:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:16,581 INFO L93 Difference]: Finished difference Result 138506 states and 184342 transitions. [2021-11-06 16:26:16,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:16,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 85 [2021-11-06 16:26:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:16,774 INFO L225 Difference]: With dead ends: 138506 [2021-11-06 16:26:16,774 INFO L226 Difference]: Without dead ends: 89288 [2021-11-06 16:26:16,858 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 16:26:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89288 states. [2021-11-06 16:26:18,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89288 to 88970. [2021-11-06 16:26:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88970 states, 88866 states have (on average 1.333715931852452) internal successors, (118522), 88969 states have internal predecessors, (118522), 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 16:26:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88970 states to 88970 states and 118522 transitions. [2021-11-06 16:26:19,201 INFO L78 Accepts]: Start accepts. Automaton has 88970 states and 118522 transitions. Word has length 85 [2021-11-06 16:26:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:19,201 INFO L470 AbstractCegarLoop]: Abstraction has 88970 states and 118522 transitions. [2021-11-06 16:26:19,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 16:26:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 88970 states and 118522 transitions. [2021-11-06 16:26:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-06 16:26:19,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:19,203 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:19,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 16:26:19,203 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:19,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:19,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1962210878, now seen corresponding path program 1 times [2021-11-06 16:26:19,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:19,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509964745] [2021-11-06 16:26:19,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:19,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:19,385 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 16:26:19,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:19,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509964745] [2021-11-06 16:26:19,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509964745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:19,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:19,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 16:26:19,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656739721] [2021-11-06 16:26:19,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:19,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:19,388 INFO L87 Difference]: Start difference. First operand 88970 states and 118522 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 16:26:21,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 16:26:21,075 INFO L93 Difference]: Finished difference Result 88970 states and 118522 transitions. [2021-11-06 16:26:21,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 16:26:21,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 86 [2021-11-06 16:26:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 16:26:21,259 INFO L225 Difference]: With dead ends: 88970 [2021-11-06 16:26:21,259 INFO L226 Difference]: Without dead ends: 88960 [2021-11-06 16:26:21,292 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 16:26:21,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88960 states. [2021-11-06 16:26:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88960 to 88960. [2021-11-06 16:26:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88960 states, 88857 states have (on average 1.3336709544549108) internal successors, (118506), 88959 states have internal predecessors, (118506), 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 16:26:23,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88960 states to 88960 states and 118506 transitions. [2021-11-06 16:26:23,784 INFO L78 Accepts]: Start accepts. Automaton has 88960 states and 118506 transitions. Word has length 86 [2021-11-06 16:26:23,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 16:26:23,784 INFO L470 AbstractCegarLoop]: Abstraction has 88960 states and 118506 transitions. [2021-11-06 16:26:23,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 16:26:23,784 INFO L276 IsEmpty]: Start isEmpty. Operand 88960 states and 118506 transitions. [2021-11-06 16:26:23,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 16:26:23,786 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 16:26:23,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 16:26:23,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 16:26:23,787 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr91ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 105 more)] === [2021-11-06 16:26:23,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 16:26:23,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1381071330, now seen corresponding path program 1 times [2021-11-06 16:26:23,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 16:26:23,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423753194] [2021-11-06 16:26:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 16:26:23,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 16:26:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 16:26:23,931 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 16:26:23,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 16:26:23,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423753194] [2021-11-06 16:26:23,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423753194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 16:26:23,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 16:26:23,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 16:26:23,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092990581] [2021-11-06 16:26:23,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 16:26:23,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 16:26:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 16:26:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 16:26:23,933 INFO L87 Difference]: Start difference. First operand 88960 states and 118506 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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)