./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-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-08_1a-drivers--input--gameport--gameport.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 25e54376eacb2d0548e63287dfbc7c840529d47c5fe4674c2562ee16254781b6 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:15:19,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:15:19,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:15:19,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:15:19,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:15:19,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:15:19,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:15:19,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:15:19,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:15:19,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:15:19,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:15:19,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:15:19,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:15:19,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:15:19,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:15:19,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:15:19,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:15:19,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:15:19,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:15:19,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:15:19,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:15:19,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:15:19,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:15:19,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:15:19,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:15:19,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:15:19,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:15:19,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:15:19,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:15:19,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:15:19,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:15:19,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:15:19,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:15:19,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:15:19,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:15:19,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:15:19,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:15:19,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:15:19,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:15:19,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:15:19,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:15:19,769 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:15:19,782 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:15:19,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:15:19,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:15:19,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:15:19,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:15:19,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:15:19,787 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:15:19,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:15:19,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:15:19,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:15:19,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:15:19,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:15:19,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:15:19,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:15:19,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:15:19,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:15:19,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:15:19,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:15:19,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:15:19,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:15:19,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:15:19,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:15:19,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:15:19,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:15:19,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:15:19,790 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:15:19,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:15:19,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:15:19,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:15:19,791 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25e54376eacb2d0548e63287dfbc7c840529d47c5fe4674c2562ee16254781b6 [2021-11-07 14:15:19,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:15:20,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:15:20,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:15:20,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:15:20,006 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:15:20,007 INFO L432 ainManager$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-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2021-11-07 14:15:20,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e37c045c0/6009afc6045f45e2840730d43e86e714/FLAGf98816287 [2021-11-07 14:15:20,571 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:15:20,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2021-11-07 14:15:20,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e37c045c0/6009afc6045f45e2840730d43e86e714/FLAGf98816287 [2021-11-07 14:15:21,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e37c045c0/6009afc6045f45e2840730d43e86e714 [2021-11-07 14:15:21,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:15:21,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:15:21,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:15:21,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:15:21,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:15:21,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:15:21" (1/1) ... [2021-11-07 14:15:21,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524a9f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:21, skipping insertion in model container [2021-11-07 14:15:21,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:15:21" (1/1) ... [2021-11-07 14:15:21,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:15:21,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:15:21,804 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-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i[133750,133763] [2021-11-07 14:15:21,832 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 14:15:21,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:15:21,878 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:15:22,049 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-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i[133750,133763] [2021-11-07 14:15:22,052 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 14:15:22,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:15:22,102 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:15:22,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22 WrapperNode [2021-11-07 14:15:22,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:15:22,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:15:22,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:15:22,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:15:22,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:15:22,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:15:22,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:15:22,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:15:22,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:15:22,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:15:22,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:15:22,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:15:22,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (1/1) ... [2021-11-07 14:15:22,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:15:22,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:15:22,500 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) [2021-11-07 14:15:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 14:15:22,544 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_add_port [2021-11-07 14:15:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_add_port [2021-11-07 14:15:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:15:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 14:15:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2021-11-07 14:15:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2021-11-07 14:15:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure old_gameport_measure_speed [2021-11-07 14:15:22,546 INFO L138 BoogieDeclarations]: Found implementation of procedure old_gameport_measure_speed [2021-11-07 14:15:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:15:22,546 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_driver_remove [2021-11-07 14:15:22,547 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_driver_remove [2021-11-07 14:15:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:15:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:15:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:15:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 14:15:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:15:22,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:15:22,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:15:22,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:15:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:15:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-07 14:15:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:15:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:15:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_measure_speed [2021-11-07 14:15:22,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_measure_speed [2021-11-07 14:15:22,548 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2021-11-07 14:15:22,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2021-11-07 14:15:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:15:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:15:22,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:15:22,549 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_handle_events [2021-11-07 14:15:22,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_handle_events [2021-11-07 14:15:22,507 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 [2021-11-07 14:15:27,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:15:27,349 INFO L299 CfgBuilder]: Removed 1134 assume(true) statements. [2021-11-07 14:15:27,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:15:27 BoogieIcfgContainer [2021-11-07 14:15:27,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:15:27,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:15:27,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:15:27,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:15:27,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:15:21" (1/3) ... [2021-11-07 14:15:27,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33de105f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:15:27, skipping insertion in model container [2021-11-07 14:15:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:15:22" (2/3) ... [2021-11-07 14:15:27,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33de105f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:15:27, skipping insertion in model container [2021-11-07 14:15:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:15:27" (3/3) ... [2021-11-07 14:15:27,358 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--input--gameport--gameport.ko-entry_point.cil.out.i [2021-11-07 14:15:27,362 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:15:27,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-11-07 14:15:27,405 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:15:27,411 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 [2021-11-07 14:15:27,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-11-07 14:15:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 988 states, 935 states have (on average 1.3754010695187167) internal successors, (1286), 958 states have internal predecessors, (1286), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-07 14:15:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 14:15:27,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:27,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:27,464 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~$Pointer$~TO~VOIDErr7ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:27,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:27,467 INFO L85 PathProgramCache]: Analyzing trace with hash 602393225, now seen corresponding path program 1 times [2021-11-07 14:15:27,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:27,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928421640] [2021-11-07 14:15:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:27,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:27,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:27,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928421640] [2021-11-07 14:15:27,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928421640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:27,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:27,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:15:27,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718837624] [2021-11-07 14:15:27,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:27,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:15:27,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:27,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:15:27,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:15:27,888 INFO L87 Difference]: Start difference. First operand has 988 states, 935 states have (on average 1.3754010695187167) internal successors, (1286), 958 states have internal predecessors, (1286), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:27,984 INFO L93 Difference]: Finished difference Result 1972 states and 2677 transitions. [2021-11-07 14:15:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:15:27,986 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 14:15:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:28,009 INFO L225 Difference]: With dead ends: 1972 [2021-11-07 14:15:28,010 INFO L226 Difference]: Without dead ends: 964 [2021-11-07 14:15:28,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:15:28,026 INFO L933 BasicCegarLoop]: 1297 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:28,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 8.07ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:15:28,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2021-11-07 14:15:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 964. [2021-11-07 14:15:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 912 states have (on average 1.325657894736842) internal successors, (1209), 934 states have internal predecessors, (1209), 22 states have call successors, (22), 9 states have call predecessors, (22), 9 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-07 14:15:28,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1253 transitions. [2021-11-07 14:15:28,109 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1253 transitions. Word has length 64 [2021-11-07 14:15:28,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:28,109 INFO L470 AbstractCegarLoop]: Abstraction has 964 states and 1253 transitions. [2021-11-07 14:15:28,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1253 transitions. [2021-11-07 14:15:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 14:15:28,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:28,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:28,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:15:28,117 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~TO~VOIDErr7ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash 2128412571, now seen corresponding path program 1 times [2021-11-07 14:15:28,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:28,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243229986] [2021-11-07 14:15:28,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:28,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:28,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:28,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243229986] [2021-11-07 14:15:28,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243229986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:28,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:28,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:15:28,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519156788] [2021-11-07 14:15:28,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:28,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:15:28,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:28,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:15:28,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:15:28,431 INFO L87 Difference]: Start difference. First operand 964 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:29,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:15:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:30,055 INFO L93 Difference]: Finished difference Result 4603 states and 6143 transitions. [2021-11-07 14:15:30,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:15:30,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-07 14:15:30,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:30,075 INFO L225 Difference]: With dead ends: 4603 [2021-11-07 14:15:30,076 INFO L226 Difference]: Without dead ends: 3686 [2021-11-07 14:15:30,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.82ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:15:30,082 INFO L933 BasicCegarLoop]: 1350 mSDtfsCounter, 3647 mSDsluCounter, 7053 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1316.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3647 SdHoareTripleChecker+Valid, 8403 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.69ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1448.32ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:30,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3647 Valid, 8403 Invalid, 246 Unknown, 0 Unchecked, 25.69ms Time], IncrementalHoareTripleChecker [11 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 1448.32ms Time] [2021-11-07 14:15:30,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2021-11-07 14:15:30,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3520. [2021-11-07 14:15:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 3378 states have (on average 1.3433984606275904) internal successors, (4538), 3406 states have internal predecessors, (4538), 85 states have call successors, (85), 36 states have call predecessors, (85), 36 states have return successors, (193), 81 states have call predecessors, (193), 85 states have call successors, (193) [2021-11-07 14:15:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4816 transitions. [2021-11-07 14:15:30,231 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4816 transitions. Word has length 64 [2021-11-07 14:15:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:30,231 INFO L470 AbstractCegarLoop]: Abstraction has 3520 states and 4816 transitions. [2021-11-07 14:15:30,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4816 transitions. [2021-11-07 14:15:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 14:15:30,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:30,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:30,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:15:30,234 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~TO~VOIDErr7ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash 287192160, now seen corresponding path program 1 times [2021-11-07 14:15:30,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:30,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685017672] [2021-11-07 14:15:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:30,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:30,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:30,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685017672] [2021-11-07 14:15:30,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685017672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:30,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:30,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:30,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344483457] [2021-11-07 14:15:30,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:30,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:30,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:30,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:30,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:30,340 INFO L87 Difference]: Start difference. First operand 3520 states and 4816 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:30,568 INFO L93 Difference]: Finished difference Result 10350 states and 14183 transitions. [2021-11-07 14:15:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:30,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-07 14:15:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:30,598 INFO L225 Difference]: With dead ends: 10350 [2021-11-07 14:15:30,598 INFO L226 Difference]: Without dead ends: 6877 [2021-11-07 14:15:30,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:30,610 INFO L933 BasicCegarLoop]: 1291 mSDtfsCounter, 1204 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.04ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.06ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:30,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 2481 Invalid, 17 Unknown, 0 Unchecked, 4.04ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 46.06ms Time] [2021-11-07 14:15:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6877 states. [2021-11-07 14:15:30,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6877 to 6825. [2021-11-07 14:15:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6825 states, 6566 states have (on average 1.3452634785257387) internal successors, (8833), 6602 states have internal predecessors, (8833), 166 states have call successors, (166), 72 states have call predecessors, (166), 72 states have return successors, (377), 158 states have call predecessors, (377), 166 states have call successors, (377) [2021-11-07 14:15:30,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6825 states to 6825 states and 9376 transitions. [2021-11-07 14:15:30,792 INFO L78 Accepts]: Start accepts. Automaton has 6825 states and 9376 transitions. Word has length 67 [2021-11-07 14:15:30,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:30,793 INFO L470 AbstractCegarLoop]: Abstraction has 6825 states and 9376 transitions. [2021-11-07 14:15:30,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:30,793 INFO L276 IsEmpty]: Start isEmpty. Operand 6825 states and 9376 transitions. [2021-11-07 14:15:30,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 14:15:30,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:30,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:30,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:15:30,795 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1762073860, now seen corresponding path program 1 times [2021-11-07 14:15:30,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:30,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540252481] [2021-11-07 14:15:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:30,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:30,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:30,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540252481] [2021-11-07 14:15:30,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540252481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:30,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:30,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:15:30,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113763721] [2021-11-07 14:15:30,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:30,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:30,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:30,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:30,935 INFO L87 Difference]: Start difference. First operand 6825 states and 9376 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2021-11-07 14:15:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:31,178 INFO L93 Difference]: Finished difference Result 13441 states and 18920 transitions. [2021-11-07 14:15:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:31,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 66 [2021-11-07 14:15:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:31,208 INFO L225 Difference]: With dead ends: 13441 [2021-11-07 14:15:31,208 INFO L226 Difference]: Without dead ends: 6653 [2021-11-07 14:15:31,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:31,248 INFO L933 BasicCegarLoop]: 1191 mSDtfsCounter, 1147 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.82ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.44ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:31,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 1191 Invalid, 40 Unknown, 0 Unchecked, 2.82ms Time], IncrementalHoareTripleChecker [20 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 37.44ms Time] [2021-11-07 14:15:31,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6653 states. [2021-11-07 14:15:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6653 to 6513. [2021-11-07 14:15:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6513 states, 6255 states have (on average 1.3336530775379696) internal successors, (8342), 6290 states have internal predecessors, (8342), 166 states have call successors, (166), 72 states have call predecessors, (166), 72 states have return successors, (377), 158 states have call predecessors, (377), 166 states have call successors, (377) [2021-11-07 14:15:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6513 states to 6513 states and 8885 transitions. [2021-11-07 14:15:31,480 INFO L78 Accepts]: Start accepts. Automaton has 6513 states and 8885 transitions. Word has length 66 [2021-11-07 14:15:31,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:31,481 INFO L470 AbstractCegarLoop]: Abstraction has 6513 states and 8885 transitions. [2021-11-07 14:15:31,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2021-11-07 14:15:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6513 states and 8885 transitions. [2021-11-07 14:15:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 14:15:31,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:31,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:31,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:15:31,484 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:31,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:31,485 INFO L85 PathProgramCache]: Analyzing trace with hash -501413641, now seen corresponding path program 1 times [2021-11-07 14:15:31,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:31,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281353283] [2021-11-07 14:15:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:31,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:31,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:31,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281353283] [2021-11-07 14:15:31,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281353283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:31,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:31,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:31,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180138574] [2021-11-07 14:15:31,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:31,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:31,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:31,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:31,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:31,594 INFO L87 Difference]: Start difference. First operand 6513 states and 8885 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:31,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:31,881 INFO L93 Difference]: Finished difference Result 19377 states and 26457 transitions. [2021-11-07 14:15:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:31,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-07 14:15:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:31,944 INFO L225 Difference]: With dead ends: 19377 [2021-11-07 14:15:31,944 INFO L226 Difference]: Without dead ends: 12911 [2021-11-07 14:15:31,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:31,966 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 1173 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.11ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.35ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:31,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 2412 Invalid, 8 Unknown, 0 Unchecked, 4.11ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 28.35ms Time] [2021-11-07 14:15:31,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12911 states. [2021-11-07 14:15:32,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12911 to 12851. [2021-11-07 14:15:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12851 states, 12363 states have (on average 1.3355981557874301) internal successors, (16512), 12414 states have internal predecessors, (16512), 324 states have call successors, (324), 144 states have call predecessors, (324), 144 states have return successors, (736), 308 states have call predecessors, (736), 324 states have call successors, (736) [2021-11-07 14:15:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12851 states to 12851 states and 17572 transitions. [2021-11-07 14:15:32,320 INFO L78 Accepts]: Start accepts. Automaton has 12851 states and 17572 transitions. Word has length 77 [2021-11-07 14:15:32,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:32,321 INFO L470 AbstractCegarLoop]: Abstraction has 12851 states and 17572 transitions. [2021-11-07 14:15:32,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:32,322 INFO L276 IsEmpty]: Start isEmpty. Operand 12851 states and 17572 transitions. [2021-11-07 14:15:32,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 14:15:32,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:32,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:32,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:15:32,323 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:32,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:32,324 INFO L85 PathProgramCache]: Analyzing trace with hash -65074104, now seen corresponding path program 1 times [2021-11-07 14:15:32,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:32,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780117673] [2021-11-07 14:15:32,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:32,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:32,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:32,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780117673] [2021-11-07 14:15:32,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780117673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:32,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:32,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:15:32,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781697087] [2021-11-07 14:15:32,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:32,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:15:32,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:32,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:15:32,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:15:32,489 INFO L87 Difference]: Start difference. First operand 12851 states and 17572 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:32,904 INFO L93 Difference]: Finished difference Result 25767 states and 36032 transitions. [2021-11-07 14:15:32,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:15:32,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-07 14:15:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:32,946 INFO L225 Difference]: With dead ends: 25767 [2021-11-07 14:15:32,946 INFO L226 Difference]: Without dead ends: 12963 [2021-11-07 14:15:32,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.78ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:15:32,988 INFO L933 BasicCegarLoop]: 1193 mSDtfsCounter, 12 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4762 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.26ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:32,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4762 Invalid, 17 Unknown, 0 Unchecked, 6.90ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 12.26ms Time] [2021-11-07 14:15:32,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12963 states. [2021-11-07 14:15:33,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12963 to 12939. [2021-11-07 14:15:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12939 states, 12443 states have (on average 1.3334404886281443) internal successors, (16592), 12502 states have internal predecessors, (16592), 324 states have call successors, (324), 144 states have call predecessors, (324), 152 states have return successors, (780), 308 states have call predecessors, (780), 324 states have call successors, (780) [2021-11-07 14:15:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12939 states to 12939 states and 17696 transitions. [2021-11-07 14:15:33,348 INFO L78 Accepts]: Start accepts. Automaton has 12939 states and 17696 transitions. Word has length 79 [2021-11-07 14:15:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:33,349 INFO L470 AbstractCegarLoop]: Abstraction has 12939 states and 17696 transitions. [2021-11-07 14:15:33,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 12939 states and 17696 transitions. [2021-11-07 14:15:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 14:15:33,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:33,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:33,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:15:33,351 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~VOIDErr7ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1277447421, now seen corresponding path program 1 times [2021-11-07 14:15:33,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:33,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367113681] [2021-11-07 14:15:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:33,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:33,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:33,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367113681] [2021-11-07 14:15:33,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367113681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:33,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:33,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:33,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844934238] [2021-11-07 14:15:33,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:33,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:33,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:33,425 INFO L87 Difference]: Start difference. First operand 12939 states and 17696 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:33,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:33,843 INFO L93 Difference]: Finished difference Result 33889 states and 46576 transitions. [2021-11-07 14:15:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:33,843 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 14:15:33,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:33,898 INFO L225 Difference]: With dead ends: 33889 [2021-11-07 14:15:33,898 INFO L226 Difference]: Without dead ends: 20997 [2021-11-07 14:15:33,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:33,934 INFO L933 BasicCegarLoop]: 1574 mSDtfsCounter, 762 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 2716 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.69ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:33,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [762 Valid, 2716 Invalid, 8 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 26.69ms Time] [2021-11-07 14:15:33,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20997 states. [2021-11-07 14:15:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20997 to 20967. [2021-11-07 14:15:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20967 states, 20027 states have (on average 1.3375942477655165) internal successors, (26788), 20126 states have internal predecessors, (26788), 616 states have call successors, (616), 288 states have call predecessors, (616), 304 states have return successors, (1488), 584 states have call predecessors, (1488), 616 states have call successors, (1488) [2021-11-07 14:15:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20967 states to 20967 states and 28892 transitions. [2021-11-07 14:15:34,524 INFO L78 Accepts]: Start accepts. Automaton has 20967 states and 28892 transitions. Word has length 81 [2021-11-07 14:15:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:34,524 INFO L470 AbstractCegarLoop]: Abstraction has 20967 states and 28892 transitions. [2021-11-07 14:15:34,524 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 20967 states and 28892 transitions. [2021-11-07 14:15:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 14:15:34,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:34,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:34,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:15:34,526 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:34,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1288210151, now seen corresponding path program 1 times [2021-11-07 14:15:34,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:34,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792937379] [2021-11-07 14:15:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:34,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:34,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:34,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792937379] [2021-11-07 14:15:34,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792937379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:34,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:34,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:34,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299239477] [2021-11-07 14:15:34,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:34,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:34,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:34,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:34,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:34,722 INFO L87 Difference]: Start difference. First operand 20967 states and 28892 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:35,430 INFO L93 Difference]: Finished difference Result 41823 states and 57584 transitions. [2021-11-07 14:15:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 14:15:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:35,507 INFO L225 Difference]: With dead ends: 41823 [2021-11-07 14:15:35,507 INFO L226 Difference]: Without dead ends: 20903 [2021-11-07 14:15:35,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:35,577 INFO L933 BasicCegarLoop]: 1191 mSDtfsCounter, 1181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.37ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.99ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:35,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 1191 Invalid, 2 Unknown, 0 Unchecked, 2.37ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 117.99ms Time] [2021-11-07 14:15:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20903 states. [2021-11-07 14:15:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20903 to 20903. [2021-11-07 14:15:36,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20903 states, 19995 states have (on average 1.3365341335333834) internal successors, (26724), 20094 states have internal predecessors, (26724), 584 states have call successors, (584), 288 states have call predecessors, (584), 304 states have return successors, (1400), 552 states have call predecessors, (1400), 584 states have call successors, (1400) [2021-11-07 14:15:36,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20903 states to 20903 states and 28708 transitions. [2021-11-07 14:15:36,248 INFO L78 Accepts]: Start accepts. Automaton has 20903 states and 28708 transitions. Word has length 80 [2021-11-07 14:15:36,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:36,249 INFO L470 AbstractCegarLoop]: Abstraction has 20903 states and 28708 transitions. [2021-11-07 14:15:36,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:36,249 INFO L276 IsEmpty]: Start isEmpty. Operand 20903 states and 28708 transitions. [2021-11-07 14:15:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 14:15:36,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:36,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:36,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 14:15:36,250 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:36,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:36,251 INFO L85 PathProgramCache]: Analyzing trace with hash -481103708, now seen corresponding path program 1 times [2021-11-07 14:15:36,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:36,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395760299] [2021-11-07 14:15:36,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:36,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:36,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:36,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395760299] [2021-11-07 14:15:36,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395760299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:36,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:36,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:36,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680749544] [2021-11-07 14:15:36,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:36,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:36,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:36,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:36,503 INFO L87 Difference]: Start difference. First operand 20903 states and 28708 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:37,072 INFO L93 Difference]: Finished difference Result 41695 states and 57216 transitions. [2021-11-07 14:15:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:37,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 14:15:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:37,157 INFO L225 Difference]: With dead ends: 41695 [2021-11-07 14:15:37,158 INFO L226 Difference]: Without dead ends: 20839 [2021-11-07 14:15:37,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:37,228 INFO L933 BasicCegarLoop]: 1187 mSDtfsCounter, 1176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.57ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:37,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 1187 Invalid, 2 Unknown, 0 Unchecked, 2.50ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 25.57ms Time] [2021-11-07 14:15:37,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20839 states. [2021-11-07 14:15:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20839 to 20839. [2021-11-07 14:15:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20839 states, 19963 states have (on average 1.3354706206481992) internal successors, (26660), 20062 states have internal predecessors, (26660), 552 states have call successors, (552), 288 states have call predecessors, (552), 304 states have return successors, (1312), 520 states have call predecessors, (1312), 552 states have call successors, (1312) [2021-11-07 14:15:37,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20839 states to 20839 states and 28524 transitions. [2021-11-07 14:15:37,944 INFO L78 Accepts]: Start accepts. Automaton has 20839 states and 28524 transitions. Word has length 81 [2021-11-07 14:15:37,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:37,944 INFO L470 AbstractCegarLoop]: Abstraction has 20839 states and 28524 transitions. [2021-11-07 14:15:37,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 20839 states and 28524 transitions. [2021-11-07 14:15:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 14:15:37,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:37,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:37,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 14:15:37,946 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:37,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:37,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1003738288, now seen corresponding path program 1 times [2021-11-07 14:15:37,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:37,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683291947] [2021-11-07 14:15:37,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:37,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:38,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:38,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683291947] [2021-11-07 14:15:38,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683291947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:38,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:38,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:38,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627607972] [2021-11-07 14:15:38,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:38,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:38,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:38,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:38,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:38,136 INFO L87 Difference]: Start difference. First operand 20839 states and 28524 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:38,793 INFO L93 Difference]: Finished difference Result 41567 states and 56848 transitions. [2021-11-07 14:15:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:38,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 14:15:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:38,863 INFO L225 Difference]: With dead ends: 41567 [2021-11-07 14:15:38,864 INFO L226 Difference]: Without dead ends: 20775 [2021-11-07 14:15:38,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:38,930 INFO L933 BasicCegarLoop]: 1183 mSDtfsCounter, 1171 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.64ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:38,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1171 Valid, 1183 Invalid, 2 Unknown, 0 Unchecked, 2.25ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 27.64ms Time] [2021-11-07 14:15:38,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20775 states. [2021-11-07 14:15:39,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20775 to 20775. [2021-11-07 14:15:39,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20775 states, 19931 states have (on average 1.3344036927399527) internal successors, (26596), 20030 states have internal predecessors, (26596), 520 states have call successors, (520), 288 states have call predecessors, (520), 304 states have return successors, (1224), 488 states have call predecessors, (1224), 520 states have call successors, (1224) [2021-11-07 14:15:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20775 states to 20775 states and 28340 transitions. [2021-11-07 14:15:39,464 INFO L78 Accepts]: Start accepts. Automaton has 20775 states and 28340 transitions. Word has length 82 [2021-11-07 14:15:39,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:39,465 INFO L470 AbstractCegarLoop]: Abstraction has 20775 states and 28340 transitions. [2021-11-07 14:15:39,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 20775 states and 28340 transitions. [2021-11-07 14:15:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 14:15:39,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:39,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:39,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 14:15:39,467 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:39,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1534020883, now seen corresponding path program 1 times [2021-11-07 14:15:39,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:39,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48925122] [2021-11-07 14:15:39,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:39,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:39,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:39,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48925122] [2021-11-07 14:15:39,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48925122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:39,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:39,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:39,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330730131] [2021-11-07 14:15:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:39,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:39,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:39,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:39,595 INFO L87 Difference]: Start difference. First operand 20775 states and 28340 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:40,383 INFO L93 Difference]: Finished difference Result 40597 states and 55341 transitions. [2021-11-07 14:15:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:40,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 14:15:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:40,449 INFO L225 Difference]: With dead ends: 40597 [2021-11-07 14:15:40,450 INFO L226 Difference]: Without dead ends: 19869 [2021-11-07 14:15:40,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:40,512 INFO L933 BasicCegarLoop]: 1179 mSDtfsCounter, 1166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.54ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:40,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 1179 Invalid, 2 Unknown, 0 Unchecked, 2.41ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 25.54ms Time] [2021-11-07 14:15:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19869 states. [2021-11-07 14:15:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19869 to 19442. [2021-11-07 14:15:41,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19442 states, 18698 states have (on average 1.3348486469141085) internal successors, (24959), 18789 states have internal predecessors, (24959), 449 states have call successors, (449), 261 states have call predecessors, (449), 275 states have return successors, (1027), 420 states have call predecessors, (1027), 449 states have call successors, (1027) [2021-11-07 14:15:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19442 states to 19442 states and 26435 transitions. [2021-11-07 14:15:41,257 INFO L78 Accepts]: Start accepts. Automaton has 19442 states and 26435 transitions. Word has length 83 [2021-11-07 14:15:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:41,257 INFO L470 AbstractCegarLoop]: Abstraction has 19442 states and 26435 transitions. [2021-11-07 14:15:41,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 19442 states and 26435 transitions. [2021-11-07 14:15:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 14:15:41,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:41,260 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:41,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 14:15:41,260 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~VOIDErr7ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:41,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash 60476818, now seen corresponding path program 1 times [2021-11-07 14:15:41,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:41,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572159773] [2021-11-07 14:15:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:41,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:15:41,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:41,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572159773] [2021-11-07 14:15:41,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572159773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:41,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:41,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:41,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626910833] [2021-11-07 14:15:41,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:41,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:41,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:41,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:41,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:41,351 INFO L87 Difference]: Start difference. First operand 19442 states and 26435 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:42,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:42,753 INFO L93 Difference]: Finished difference Result 48299 states and 65713 transitions. [2021-11-07 14:15:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:42,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-07 14:15:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:42,815 INFO L225 Difference]: With dead ends: 48299 [2021-11-07 14:15:42,815 INFO L226 Difference]: Without dead ends: 28904 [2021-11-07 14:15:42,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:42,851 INFO L933 BasicCegarLoop]: 1559 mSDtfsCounter, 1107 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 581.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.99ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 649.28ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:42,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 2703 Invalid, 25 Unknown, 0 Unchecked, 6.99ms Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 649.28ms Time] [2021-11-07 14:15:42,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28904 states. [2021-11-07 14:15:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28904 to 28417. [2021-11-07 14:15:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28417 states, 27353 states have (on average 1.3347713230724234) internal successors, (36510), 27476 states have internal predecessors, (36510), 646 states have call successors, (646), 378 states have call predecessors, (646), 398 states have return successors, (1468), 604 states have call predecessors, (1468), 646 states have call successors, (1468) [2021-11-07 14:15:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28417 states to 28417 states and 38624 transitions. [2021-11-07 14:15:43,662 INFO L78 Accepts]: Start accepts. Automaton has 28417 states and 38624 transitions. Word has length 89 [2021-11-07 14:15:43,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:43,663 INFO L470 AbstractCegarLoop]: Abstraction has 28417 states and 38624 transitions. [2021-11-07 14:15:43,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:43,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28417 states and 38624 transitions. [2021-11-07 14:15:43,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 14:15:43,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:43,667 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:43,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 14:15:43,668 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:43,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:43,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1156172890, now seen corresponding path program 1 times [2021-11-07 14:15:43,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:43,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701953070] [2021-11-07 14:15:43,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:43,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 14:15:43,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:43,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701953070] [2021-11-07 14:15:43,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701953070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:43,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:15:43,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:15:43,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486130644] [2021-11-07 14:15:43,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:43,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:15:43,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:43,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:15:43,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:43,798 INFO L87 Difference]: Start difference. First operand 28417 states and 38624 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:44,813 INFO L93 Difference]: Finished difference Result 56791 states and 77205 transitions. [2021-11-07 14:15:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:15:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-07 14:15:44,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:44,879 INFO L225 Difference]: With dead ends: 56791 [2021-11-07 14:15:44,879 INFO L226 Difference]: Without dead ends: 28418 [2021-11-07 14:15:44,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:15:44,930 INFO L933 BasicCegarLoop]: 1179 mSDtfsCounter, 0 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.46ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:44,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2356 Invalid, 3 Unknown, 0 Unchecked, 2.76ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 4.46ms Time] [2021-11-07 14:15:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28418 states. [2021-11-07 14:15:45,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28418 to 28418. [2021-11-07 14:15:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28418 states, 27354 states have (on average 1.334759084594575) internal successors, (36511), 27477 states have internal predecessors, (36511), 646 states have call successors, (646), 378 states have call predecessors, (646), 398 states have return successors, (1468), 604 states have call predecessors, (1468), 646 states have call successors, (1468) [2021-11-07 14:15:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28418 states to 28418 states and 38625 transitions. [2021-11-07 14:15:45,804 INFO L78 Accepts]: Start accepts. Automaton has 28418 states and 38625 transitions. Word has length 100 [2021-11-07 14:15:45,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:45,805 INFO L470 AbstractCegarLoop]: Abstraction has 28418 states and 38625 transitions. [2021-11-07 14:15:45,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 28418 states and 38625 transitions. [2021-11-07 14:15:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 14:15:45,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:45,808 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:45,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 14:15:45,809 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1589848335, now seen corresponding path program 1 times [2021-11-07 14:15:45,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:45,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990293028] [2021-11-07 14:15:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:45,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 14:15:46,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:46,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990293028] [2021-11-07 14:15:46,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990293028] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:15:46,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030118793] [2021-11-07 14:15:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:46,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:15:46,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:15:46,100 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 14:15:46,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 14:15:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:46,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 14:15:46,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:15:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 14:15:46,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 14:15:46,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030118793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:15:46,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 14:15:46,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-11-07 14:15:46,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791340056] [2021-11-07 14:15:46,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:15:46,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:15:46,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:15:46,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:15:46,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:15:46,810 INFO L87 Difference]: Start difference. First operand 28418 states and 38625 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:48,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:15:48,667 INFO L93 Difference]: Finished difference Result 56936 states and 77397 transitions. [2021-11-07 14:15:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:15:48,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-07 14:15:48,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:15:48,759 INFO L225 Difference]: With dead ends: 56936 [2021-11-07 14:15:48,759 INFO L226 Difference]: Without dead ends: 28374 [2021-11-07 14:15:48,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.30ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-07 14:15:48,835 INFO L933 BasicCegarLoop]: 1178 mSDtfsCounter, 3 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 908.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.39ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 977.15ms IncrementalHoareTripleChecker+Time [2021-11-07 14:15:48,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3529 Invalid, 12 Unknown, 0 Unchecked, 11.39ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 977.15ms Time] [2021-11-07 14:15:48,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28374 states. [2021-11-07 14:15:49,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28374 to 28198. [2021-11-07 14:15:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28198 states, 27134 states have (on average 1.3339352841453527) internal successors, (36195), 27257 states have internal predecessors, (36195), 646 states have call successors, (646), 378 states have call predecessors, (646), 398 states have return successors, (1468), 604 states have call predecessors, (1468), 646 states have call successors, (1468) [2021-11-07 14:15:49,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28198 states to 28198 states and 38309 transitions. [2021-11-07 14:15:49,913 INFO L78 Accepts]: Start accepts. Automaton has 28198 states and 38309 transitions. Word has length 101 [2021-11-07 14:15:49,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:15:49,914 INFO L470 AbstractCegarLoop]: Abstraction has 28198 states and 38309 transitions. [2021-11-07 14:15:49,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:15:49,914 INFO L276 IsEmpty]: Start isEmpty. Operand 28198 states and 38309 transitions. [2021-11-07 14:15:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 14:15:49,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:15:49,917 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:15:49,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 14:15:50,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-07 14:15:50,124 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting gameport_handle_eventsErr1ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-07 14:15:50,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:15:50,125 INFO L85 PathProgramCache]: Analyzing trace with hash 218041037, now seen corresponding path program 1 times [2021-11-07 14:15:50,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:15:50,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324303536] [2021-11-07 14:15:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:50,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:15:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 14:15:50,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:15:50,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324303536] [2021-11-07 14:15:50,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324303536] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 14:15:50,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141308556] [2021-11-07 14:15:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:15:50,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 14:15:50,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:15:50,510 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 14:15:50,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 14:15:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:15:52,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 2289 conjuncts, 97 conjunts are in the unsatisfiable core [2021-11-07 14:15:52,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 14:17:21,541 WARN L227 SmtUtils]: Spent 1.47m on a formula simplification. DAG size of input: 4732 DAG size of output: 216 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-07 14:17:21,543 INFO L354 Elim1Store]: treesize reduction 93582, result has 0.4 percent of original size [2021-11-07 14:17:21,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 2 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 172 case distinctions, treesize of input 8038572913635270 treesize of output 7748155798102592 Killed by 15