./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0 --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 5c13092b5fe0ffbf7fbf1fe31d493be6a68ca2455b811b10fd7983ff470e432f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:48:08,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:48:08,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:48:08,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:48:08,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:48:08,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:48:08,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:48:08,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:48:08,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:48:08,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:48:08,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:48:08,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:48:08,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:48:08,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:48:08,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:48:08,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:48:08,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:48:08,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:48:08,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:48:08,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:48:08,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:48:08,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:48:08,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:48:08,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:48:08,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:48:08,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:48:08,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:48:08,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:48:08,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:48:08,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:48:08,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:48:08,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:48:08,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:48:08,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:48:08,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:48:08,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:48:08,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:48:08,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:48:08,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:48:08,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:48:08,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:48:08,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:48:08,815 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:48:08,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:48:08,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:48:08,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:48:08,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:48:08,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:48:08,818 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:48:08,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:48:08,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:48:08,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:48:08,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:48:08,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:48:08,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:48:08,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:48:08,820 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:48:08,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:48:08,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:48:08,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:48:08,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:48:08,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:08,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:48:08,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:48:08,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:48:08,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:48:08,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:48:08,823 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:48:08,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:48:08,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:48:08,824 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:48:08,824 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c13092b5fe0ffbf7fbf1fe31d493be6a68ca2455b811b10fd7983ff470e432f [2021-11-22 14:48:09,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:48:09,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:48:09,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:48:09,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:48:09,133 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:48:09,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2021-11-22 14:48:09,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/data/8fa0cbab8/05a3dcac6c7847168e0e0031a46578c6/FLAG26b81f70b [2021-11-22 14:48:10,070 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:48:10,071 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2021-11-22 14:48:10,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/data/8fa0cbab8/05a3dcac6c7847168e0e0031a46578c6/FLAG26b81f70b [2021-11-22 14:48:10,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/data/8fa0cbab8/05a3dcac6c7847168e0e0031a46578c6 [2021-11-22 14:48:10,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:48:10,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:48:10,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:10,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:48:10,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:48:10,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:10" (1/1) ... [2021-11-22 14:48:10,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10530a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:10, skipping insertion in model container [2021-11-22 14:48:10,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:48:10" (1/1) ... [2021-11-22 14:48:10,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:48:10,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:48:11,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i[108030,108043] [2021-11-22 14:48:12,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:12,114 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:48:12,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i[108030,108043] [2021-11-22 14:48:12,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:48:12,740 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:48:12,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12 WrapperNode [2021-11-22 14:48:12,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:48:12,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:12,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:48:12,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:48:12,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:12,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,153 INFO L137 Inliner]: procedures = 178, calls = 1867, calls flagged for inlining = 256, calls inlined = 343, statements flattened = 5862 [2021-11-22 14:48:13,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:48:13,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:48:13,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:48:13,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:48:13,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:48:13,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:48:13,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:48:13,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:48:13,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (1/1) ... [2021-11-22 14:48:13,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:48:13,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:48:13,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:48:13,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:48:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:48:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2021-11-22 14:48:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2021-11-22 14:48:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2021-11-22 14:48:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2021-11-22 14:48:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2021-11-22 14:48:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2021-11-22 14:48:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 14:48:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 14:48:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:48:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-22 14:48:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-22 14:48:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-22 14:48:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-22 14:48:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_resume [2021-11-22 14:48:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_resume [2021-11-22 14:48:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_reset_resume [2021-11-22 14:48:13,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_reset_resume [2021-11-22 14:48:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:48:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:48:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_disconnect [2021-11-22 14:48:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_disconnect [2021-11-22 14:48:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2021-11-22 14:48:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2021-11-22 14:48:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:48:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:48:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:48:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 14:48:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 14:48:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-22 14:48:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-22 14:48:13,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:48:13,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2021-11-22 14:48:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2021-11-22 14:48:13,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_16 [2021-11-22 14:48:13,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_16 [2021-11-22 14:48:13,590 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_probe [2021-11-22 14:48:13,590 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_probe [2021-11-22 14:48:13,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:48:13,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:48:13,590 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_open [2021-11-22 14:48:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_open [2021-11-22 14:48:13,591 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_irq [2021-11-22 14:48:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_irq [2021-11-22 14:48:13,591 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 14:48:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 14:48:13,592 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_process_pkt [2021-11-22 14:48:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_process_pkt [2021-11-22 14:48:13,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:48:13,592 INFO L130 BoogieDeclarations]: Found specification of procedure nexio_read_data [2021-11-22 14:48:13,592 INFO L138 BoogieDeclarations]: Found implementation of procedure nexio_read_data [2021-11-22 14:48:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 14:48:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:48:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:48:13,593 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_process_multi [2021-11-22 14:48:13,593 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_process_multi [2021-11-22 14:48:14,434 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:48:14,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:48:19,273 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:48:19,308 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:48:19,312 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:48:19,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:19 BoogieIcfgContainer [2021-11-22 14:48:19,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:48:19,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:48:19,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:48:19,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:48:19,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:48:10" (1/3) ... [2021-11-22 14:48:19,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14781723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:19, skipping insertion in model container [2021-11-22 14:48:19,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:48:12" (2/3) ... [2021-11-22 14:48:19,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14781723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:48:19, skipping insertion in model container [2021-11-22 14:48:19,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:48:19" (3/3) ... [2021-11-22 14:48:19,328 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2021-11-22 14:48:19,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:48:19,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-22 14:48:19,419 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:48:19,428 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 [2021-11-22 14:48:19,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-22 14:48:19,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 959 states, 893 states have (on average 1.4020156774916013) internal successors, (1252), 904 states have internal predecessors, (1252), 37 states have call successors, (37), 20 states have call predecessors, (37), 20 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2021-11-22 14:48:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 14:48:19,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:19,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:48:19,515 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2146519818, now seen corresponding path program 1 times [2021-11-22 14:48:19,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:19,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523181819] [2021-11-22 14:48:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:19,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:20,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:20,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523181819] [2021-11-22 14:48:20,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523181819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:20,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:20,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:48:20,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192309330] [2021-11-22 14:48:20,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:20,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:20,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:20,302 INFO L87 Difference]: Start difference. First operand has 959 states, 893 states have (on average 1.4020156774916013) internal successors, (1252), 904 states have internal predecessors, (1252), 37 states have call successors, (37), 20 states have call predecessors, (37), 20 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-22 14:48:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:20,658 INFO L93 Difference]: Finished difference Result 2813 states and 3976 transitions. [2021-11-22 14:48:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:20,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-22 14:48:20,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:20,701 INFO L225 Difference]: With dead ends: 2813 [2021-11-22 14:48:20,701 INFO L226 Difference]: Without dead ends: 1823 [2021-11-22 14:48:20,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:20,723 INFO L933 BasicCegarLoop]: 1320 mSDtfsCounter, 1240 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:20,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 2582 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:48:20,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2021-11-22 14:48:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1817. [2021-11-22 14:48:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1695 states have (on average 1.3569321533923304) internal successors, (2300), 1708 states have internal predecessors, (2300), 74 states have call successors, (74), 40 states have call predecessors, (74), 40 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2021-11-22 14:48:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2448 transitions. [2021-11-22 14:48:20,970 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2448 transitions. Word has length 19 [2021-11-22 14:48:20,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:20,970 INFO L470 AbstractCegarLoop]: Abstraction has 1817 states and 2448 transitions. [2021-11-22 14:48:20,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-22 14:48:20,971 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2448 transitions. [2021-11-22 14:48:20,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 14:48:20,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:20,975 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] [2021-11-22 14:48:20,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:48:20,976 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1694162481, now seen corresponding path program 1 times [2021-11-22 14:48:20,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:20,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422299149] [2021-11-22 14:48:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:20,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:21,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:21,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422299149] [2021-11-22 14:48:21,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422299149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:21,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:21,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:48:21,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250209915] [2021-11-22 14:48:21,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:21,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:21,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:21,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:21,188 INFO L87 Difference]: Start difference. First operand 1817 states and 2448 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-22 14:48:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:21,332 INFO L93 Difference]: Finished difference Result 1849 states and 2478 transitions. [2021-11-22 14:48:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:21,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-22 14:48:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:21,347 INFO L225 Difference]: With dead ends: 1849 [2021-11-22 14:48:21,347 INFO L226 Difference]: Without dead ends: 1833 [2021-11-22 14:48:21,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:21,350 INFO L933 BasicCegarLoop]: 1262 mSDtfsCounter, 1243 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:21,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 1277 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:48:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1833 states. [2021-11-22 14:48:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1833 to 1817. [2021-11-22 14:48:21,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1695 states have (on average 1.3563421828908555) internal successors, (2299), 1708 states have internal predecessors, (2299), 74 states have call successors, (74), 40 states have call predecessors, (74), 40 states have return successors, (74), 70 states have call predecessors, (74), 74 states have call successors, (74) [2021-11-22 14:48:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 2447 transitions. [2021-11-22 14:48:21,444 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 2447 transitions. Word has length 25 [2021-11-22 14:48:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:21,444 INFO L470 AbstractCegarLoop]: Abstraction has 1817 states and 2447 transitions. [2021-11-22 14:48:21,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-22 14:48:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 2447 transitions. [2021-11-22 14:48:21,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 14:48:21,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:21,448 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] [2021-11-22 14:48:21,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:48:21,449 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:21,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1696009523, now seen corresponding path program 1 times [2021-11-22 14:48:21,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:21,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407426038] [2021-11-22 14:48:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:21,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:21,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:21,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407426038] [2021-11-22 14:48:21,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407426038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:21,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:21,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:48:21,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368610636] [2021-11-22 14:48:21,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:21,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:21,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:21,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:21,673 INFO L87 Difference]: Start difference. First operand 1817 states and 2447 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-22 14:48:21,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:21,914 INFO L93 Difference]: Finished difference Result 5429 states and 7612 transitions. [2021-11-22 14:48:21,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:21,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-22 14:48:21,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:21,946 INFO L225 Difference]: With dead ends: 5429 [2021-11-22 14:48:21,946 INFO L226 Difference]: Without dead ends: 3622 [2021-11-22 14:48:21,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:21,960 INFO L933 BasicCegarLoop]: 1308 mSDtfsCounter, 1255 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:21,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 2561 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:48:21,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-11-22 14:48:22,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3604. [2021-11-22 14:48:22,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 3368 states have (on average 1.355106888361045) internal successors, (4564), 3387 states have internal predecessors, (4564), 148 states have call successors, (148), 80 states have call predecessors, (148), 80 states have return successors, (296), 140 states have call predecessors, (296), 148 states have call successors, (296) [2021-11-22 14:48:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 5008 transitions. [2021-11-22 14:48:22,168 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 5008 transitions. Word has length 25 [2021-11-22 14:48:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:22,169 INFO L470 AbstractCegarLoop]: Abstraction has 3604 states and 5008 transitions. [2021-11-22 14:48:22,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-22 14:48:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 5008 transitions. [2021-11-22 14:48:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 14:48:22,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:22,172 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] [2021-11-22 14:48:22,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:48:22,172 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1036687998, now seen corresponding path program 1 times [2021-11-22 14:48:22,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:22,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159714232] [2021-11-22 14:48:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:22,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:22,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:22,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159714232] [2021-11-22 14:48:22,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159714232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:22,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:22,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:48:22,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43896211] [2021-11-22 14:48:22,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:22,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:22,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:22,500 INFO L87 Difference]: Start difference. First operand 3604 states and 5008 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-11-22 14:48:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:22,664 INFO L93 Difference]: Finished difference Result 3604 states and 5008 transitions. [2021-11-22 14:48:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:22,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-11-22 14:48:22,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:22,696 INFO L225 Difference]: With dead ends: 3604 [2021-11-22 14:48:22,696 INFO L226 Difference]: Without dead ends: 3602 [2021-11-22 14:48:22,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:22,707 INFO L933 BasicCegarLoop]: 1245 mSDtfsCounter, 1222 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:22,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 1245 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:48:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2021-11-22 14:48:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3602. [2021-11-22 14:48:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3602 states, 3367 states have (on average 1.354915354915355) internal successors, (4562), 3385 states have internal predecessors, (4562), 148 states have call successors, (148), 80 states have call predecessors, (148), 80 states have return successors, (296), 140 states have call predecessors, (296), 148 states have call successors, (296) [2021-11-22 14:48:22,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 5006 transitions. [2021-11-22 14:48:22,941 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 5006 transitions. Word has length 26 [2021-11-22 14:48:22,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:22,945 INFO L470 AbstractCegarLoop]: Abstraction has 3602 states and 5006 transitions. [2021-11-22 14:48:22,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-11-22 14:48:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 5006 transitions. [2021-11-22 14:48:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 14:48:22,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:22,948 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] [2021-11-22 14:48:22,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 14:48:22,949 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:22,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2072557214, now seen corresponding path program 1 times [2021-11-22 14:48:22,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:22,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141058362] [2021-11-22 14:48:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:22,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:23,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:23,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141058362] [2021-11-22 14:48:23,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141058362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:23,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:23,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:48:23,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747416968] [2021-11-22 14:48:23,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:23,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:23,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:23,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:23,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:23,193 INFO L87 Difference]: Start difference. First operand 3602 states and 5006 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-11-22 14:48:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:23,379 INFO L93 Difference]: Finished difference Result 3602 states and 5006 transitions. [2021-11-22 14:48:23,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:23,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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 27 [2021-11-22 14:48:23,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:23,411 INFO L225 Difference]: With dead ends: 3602 [2021-11-22 14:48:23,412 INFO L226 Difference]: Without dead ends: 3600 [2021-11-22 14:48:23,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:23,414 INFO L933 BasicCegarLoop]: 1243 mSDtfsCounter, 1219 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:23,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:48:23,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2021-11-22 14:48:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 3600. [2021-11-22 14:48:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3366 states have (on average 1.3547237076648841) internal successors, (4560), 3383 states have internal predecessors, (4560), 148 states have call successors, (148), 80 states have call predecessors, (148), 80 states have return successors, (296), 140 states have call predecessors, (296), 148 states have call successors, (296) [2021-11-22 14:48:23,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5004 transitions. [2021-11-22 14:48:23,658 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5004 transitions. Word has length 27 [2021-11-22 14:48:23,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:23,658 INFO L470 AbstractCegarLoop]: Abstraction has 3600 states and 5004 transitions. [2021-11-22 14:48:23,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 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) [2021-11-22 14:48:23,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5004 transitions. [2021-11-22 14:48:23,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 14:48:23,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:23,661 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] [2021-11-22 14:48:23,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 14:48:23,661 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash -175235447, now seen corresponding path program 1 times [2021-11-22 14:48:23,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:23,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387349902] [2021-11-22 14:48:23,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:23,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:23,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:23,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387349902] [2021-11-22 14:48:23,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387349902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:23,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:23,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:48:23,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917936448] [2021-11-22 14:48:23,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:23,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:23,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:23,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:23,918 INFO L87 Difference]: Start difference. First operand 3600 states and 5004 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-22 14:48:24,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:24,353 INFO L93 Difference]: Finished difference Result 10731 states and 15529 transitions. [2021-11-22 14:48:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:24,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-11-22 14:48:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:24,421 INFO L225 Difference]: With dead ends: 10731 [2021-11-22 14:48:24,422 INFO L226 Difference]: Without dead ends: 7141 [2021-11-22 14:48:24,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:24,454 INFO L933 BasicCegarLoop]: 1324 mSDtfsCounter, 1199 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:24,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1199 Valid, 2577 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:48:24,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7141 states. [2021-11-22 14:48:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7141 to 7106. [2021-11-22 14:48:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7106 states, 6646 states have (on average 1.3566054769786338) internal successors, (9016), 6678 states have internal predecessors, (9016), 296 states have call successors, (296), 160 states have call predecessors, (296), 158 states have return successors, (880), 275 states have call predecessors, (880), 296 states have call successors, (880) [2021-11-22 14:48:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7106 states to 7106 states and 10192 transitions. [2021-11-22 14:48:24,914 INFO L78 Accepts]: Start accepts. Automaton has 7106 states and 10192 transitions. Word has length 28 [2021-11-22 14:48:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:24,915 INFO L470 AbstractCegarLoop]: Abstraction has 7106 states and 10192 transitions. [2021-11-22 14:48:24,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-22 14:48:24,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7106 states and 10192 transitions. [2021-11-22 14:48:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 14:48:24,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:24,921 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] [2021-11-22 14:48:24,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 14:48:24,921 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:24,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1137331191, now seen corresponding path program 1 times [2021-11-22 14:48:24,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:24,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467643137] [2021-11-22 14:48:24,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:24,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:25,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:25,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:25,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467643137] [2021-11-22 14:48:25,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467643137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:25,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:25,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:48:25,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349108477] [2021-11-22 14:48:25,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:25,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:25,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:25,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:25,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:25,101 INFO L87 Difference]: Start difference. First operand 7106 states and 10192 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-11-22 14:48:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:25,348 INFO L93 Difference]: Finished difference Result 7106 states and 10192 transitions. [2021-11-22 14:48:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:25,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 29 [2021-11-22 14:48:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:25,411 INFO L225 Difference]: With dead ends: 7106 [2021-11-22 14:48:25,411 INFO L226 Difference]: Without dead ends: 7095 [2021-11-22 14:48:25,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:25,418 INFO L933 BasicCegarLoop]: 1242 mSDtfsCounter, 1215 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:25,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:48:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7095 states. [2021-11-22 14:48:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7095 to 7095. [2021-11-22 14:48:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7095 states, 6636 states have (on average 1.3565400843881856) internal successors, (9002), 6667 states have internal predecessors, (9002), 296 states have call successors, (296), 160 states have call predecessors, (296), 158 states have return successors, (880), 275 states have call predecessors, (880), 296 states have call successors, (880) [2021-11-22 14:48:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7095 states to 7095 states and 10178 transitions. [2021-11-22 14:48:25,936 INFO L78 Accepts]: Start accepts. Automaton has 7095 states and 10178 transitions. Word has length 29 [2021-11-22 14:48:25,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:25,938 INFO L470 AbstractCegarLoop]: Abstraction has 7095 states and 10178 transitions. [2021-11-22 14:48:25,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-11-22 14:48:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 7095 states and 10178 transitions. [2021-11-22 14:48:25,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-22 14:48:25,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:25,944 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] [2021-11-22 14:48:25,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 14:48:25,945 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:25,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:25,946 INFO L85 PathProgramCache]: Analyzing trace with hash 198857452, now seen corresponding path program 1 times [2021-11-22 14:48:25,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:25,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734876915] [2021-11-22 14:48:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:25,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:26,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:26,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734876915] [2021-11-22 14:48:26,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734876915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:26,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:26,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:48:26,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070501627] [2021-11-22 14:48:26,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:26,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:26,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:26,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:26,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:26,138 INFO L87 Difference]: Start difference. First operand 7095 states and 10178 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-22 14:48:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:26,669 INFO L93 Difference]: Finished difference Result 14304 states and 20518 transitions. [2021-11-22 14:48:26,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:26,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 49 [2021-11-22 14:48:26,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:26,726 INFO L225 Difference]: With dead ends: 14304 [2021-11-22 14:48:26,727 INFO L226 Difference]: Without dead ends: 7219 [2021-11-22 14:48:26,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:26,770 INFO L933 BasicCegarLoop]: 1244 mSDtfsCounter, 38 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:26,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 2449 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:48:26,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7219 states. [2021-11-22 14:48:27,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7219 to 7195. [2021-11-22 14:48:27,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7195 states, 6736 states have (on average 1.3576306413301662) internal successors, (9145), 6767 states have internal predecessors, (9145), 296 states have call successors, (296), 160 states have call predecessors, (296), 158 states have return successors, (880), 275 states have call predecessors, (880), 296 states have call successors, (880) [2021-11-22 14:48:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 10321 transitions. [2021-11-22 14:48:27,277 INFO L78 Accepts]: Start accepts. Automaton has 7195 states and 10321 transitions. Word has length 49 [2021-11-22 14:48:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:27,277 INFO L470 AbstractCegarLoop]: Abstraction has 7195 states and 10321 transitions. [2021-11-22 14:48:27,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-22 14:48:27,278 INFO L276 IsEmpty]: Start isEmpty. Operand 7195 states and 10321 transitions. [2021-11-22 14:48:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-22 14:48:27,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:27,284 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:48:27,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 14:48:27,285 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:27,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash 498027087, now seen corresponding path program 1 times [2021-11-22 14:48:27,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:27,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146867704] [2021-11-22 14:48:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:27,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:48:27,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:27,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146867704] [2021-11-22 14:48:27,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146867704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:27,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:27,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:48:27,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606394434] [2021-11-22 14:48:27,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:27,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:48:27,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:27,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:48:27,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:27,492 INFO L87 Difference]: Start difference. First operand 7195 states and 10321 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-22 14:48:28,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:28,167 INFO L93 Difference]: Finished difference Result 21271 states and 30439 transitions. [2021-11-22 14:48:28,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:48:28,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 64 [2021-11-22 14:48:28,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:28,253 INFO L225 Difference]: With dead ends: 21271 [2021-11-22 14:48:28,254 INFO L226 Difference]: Without dead ends: 14086 [2021-11-22 14:48:28,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:48:28,305 INFO L933 BasicCegarLoop]: 2191 mSDtfsCounter, 1183 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:28,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1183 Valid, 3391 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:48:28,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14086 states. [2021-11-22 14:48:29,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14086 to 14049. [2021-11-22 14:48:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14049 states, 13176 states have (on average 1.3545840922890102) internal successors, (17848), 13235 states have internal predecessors, (17848), 552 states have call successors, (552), 320 states have call predecessors, (552), 316 states have return successors, (1640), 509 states have call predecessors, (1640), 552 states have call successors, (1640) [2021-11-22 14:48:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14049 states to 14049 states and 20040 transitions. [2021-11-22 14:48:29,263 INFO L78 Accepts]: Start accepts. Automaton has 14049 states and 20040 transitions. Word has length 64 [2021-11-22 14:48:29,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:29,264 INFO L470 AbstractCegarLoop]: Abstraction has 14049 states and 20040 transitions. [2021-11-22 14:48:29,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-22 14:48:29,265 INFO L276 IsEmpty]: Start isEmpty. Operand 14049 states and 20040 transitions. [2021-11-22 14:48:29,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-22 14:48:29,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:29,273 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-22 14:48:29,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 14:48:29,274 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash -912509033, now seen corresponding path program 1 times [2021-11-22 14:48:29,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:29,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116014497] [2021-11-22 14:48:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:29,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:48:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 14:48:29,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:29,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116014497] [2021-11-22 14:48:29,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116014497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:29,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:29,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 14:48:29,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225680472] [2021-11-22 14:48:29,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:29,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:48:29,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:48:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:48:29,558 INFO L87 Difference]: Start difference. First operand 14049 states and 20040 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:48:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:35,233 INFO L93 Difference]: Finished difference Result 39364 states and 56029 transitions. [2021-11-22 14:48:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:48:35,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2021-11-22 14:48:35,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:35,367 INFO L225 Difference]: With dead ends: 39364 [2021-11-22 14:48:35,368 INFO L226 Difference]: Without dead ends: 25325 [2021-11-22 14:48:35,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:48:35,561 INFO L933 BasicCegarLoop]: 1773 mSDtfsCounter, 1893 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1898 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:35,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1898 Valid, 4027 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-22 14:48:35,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25325 states. [2021-11-22 14:48:36,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25325 to 23459. [2021-11-22 14:48:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23459 states, 21848 states have (on average 1.3386580007323325) internal successors, (29247), 21983 states have internal predecessors, (29247), 808 states have call successors, (808), 480 states have call predecessors, (808), 798 states have return successors, (3020), 1019 states have call predecessors, (3020), 808 states have call successors, (3020) [2021-11-22 14:48:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23459 states to 23459 states and 33075 transitions. [2021-11-22 14:48:37,021 INFO L78 Accepts]: Start accepts. Automaton has 23459 states and 33075 transitions. Word has length 82 [2021-11-22 14:48:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:37,021 INFO L470 AbstractCegarLoop]: Abstraction has 23459 states and 33075 transitions. [2021-11-22 14:48:37,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:48:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 23459 states and 33075 transitions. [2021-11-22 14:48:37,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 14:48:37,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:37,027 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-22 14:48:37,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 14:48:37,028 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:37,029 INFO L85 PathProgramCache]: Analyzing trace with hash 153349161, now seen corresponding path program 1 times [2021-11-22 14:48:37,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:37,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006130029] [2021-11-22 14:48:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:37,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:37,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:48:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:37,417 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 14:48:37,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:37,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006130029] [2021-11-22 14:48:37,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006130029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:37,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:37,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:48:37,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001444082] [2021-11-22 14:48:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:37,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:48:37,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:37,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:48:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:48:37,421 INFO L87 Difference]: Start difference. First operand 23459 states and 33075 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:48:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:47,271 INFO L93 Difference]: Finished difference Result 43972 states and 65143 transitions. [2021-11-22 14:48:47,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 14:48:47,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-11-22 14:48:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:47,497 INFO L225 Difference]: With dead ends: 43972 [2021-11-22 14:48:47,497 INFO L226 Difference]: Without dead ends: 43966 [2021-11-22 14:48:47,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-22 14:48:47,523 INFO L933 BasicCegarLoop]: 2356 mSDtfsCounter, 6260 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6260 SdHoareTripleChecker+Valid, 6671 SdHoareTripleChecker+Invalid, 2861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:47,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6260 Valid, 6671 Invalid, 2861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [746 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2021-11-22 14:48:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43966 states. [2021-11-22 14:48:49,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43966 to 40929. [2021-11-22 14:48:49,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40929 states, 37858 states have (on average 1.329309525067357) internal successors, (50325), 38029 states have internal predecessors, (50325), 1380 states have call successors, (1380), 720 states have call predecessors, (1380), 1686 states have return successors, (8336), 2239 states have call predecessors, (8336), 1380 states have call successors, (8336) [2021-11-22 14:48:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40929 states to 40929 states and 60041 transitions. [2021-11-22 14:48:50,115 INFO L78 Accepts]: Start accepts. Automaton has 40929 states and 60041 transitions. Word has length 83 [2021-11-22 14:48:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:48:50,116 INFO L470 AbstractCegarLoop]: Abstraction has 40929 states and 60041 transitions. [2021-11-22 14:48:50,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:48:50,117 INFO L276 IsEmpty]: Start isEmpty. Operand 40929 states and 60041 transitions. [2021-11-22 14:48:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-22 14:48:50,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:48:50,124 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-22 14:48:50,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 14:48:50,125 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:48:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:48:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1928356523, now seen corresponding path program 1 times [2021-11-22 14:48:50,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:48:50,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560958736] [2021-11-22 14:48:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:48:50,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:48:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:48:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:48:50,464 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-22 14:48:50,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:48:50,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560958736] [2021-11-22 14:48:50,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560958736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:48:50,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:48:50,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 14:48:50,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315958381] [2021-11-22 14:48:50,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:48:50,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 14:48:50,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:48:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 14:48:50,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-22 14:48:50,467 INFO L87 Difference]: Start difference. First operand 40929 states and 60041 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:48:56,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:48:56,940 INFO L93 Difference]: Finished difference Result 58560 states and 89060 transitions. [2021-11-22 14:48:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 14:48:56,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-11-22 14:48:56,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:48:57,209 INFO L225 Difference]: With dead ends: 58560 [2021-11-22 14:48:57,209 INFO L226 Difference]: Without dead ends: 43802 [2021-11-22 14:48:57,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-11-22 14:48:57,320 INFO L933 BasicCegarLoop]: 1156 mSDtfsCounter, 389 mSDsluCounter, 6479 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 7635 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-22 14:48:57,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 7635 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-22 14:48:57,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43802 states. [2021-11-22 14:48:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43802 to 40976. [2021-11-22 14:49:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40976 states, 37881 states have (on average 1.3281592355006469) internal successors, (50312), 38052 states have internal predecessors, (50312), 1380 states have call successors, (1380), 720 states have call predecessors, (1380), 1710 states have return successors, (8648), 2239 states have call predecessors, (8648), 1380 states have call successors, (8648) [2021-11-22 14:49:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40976 states to 40976 states and 60340 transitions. [2021-11-22 14:49:00,279 INFO L78 Accepts]: Start accepts. Automaton has 40976 states and 60340 transitions. Word has length 83 [2021-11-22 14:49:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:49:00,280 INFO L470 AbstractCegarLoop]: Abstraction has 40976 states and 60340 transitions. [2021-11-22 14:49:00,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 40976 states and 60340 transitions. [2021-11-22 14:49:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-22 14:49:00,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:49:00,297 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-22 14:49:00,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 14:49:00,298 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:49:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:49:00,298 INFO L85 PathProgramCache]: Analyzing trace with hash 451754653, now seen corresponding path program 1 times [2021-11-22 14:49:00,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:49:00,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138408945] [2021-11-22 14:49:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:49:00,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:49:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:49:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-22 14:49:00,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:49:00,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138408945] [2021-11-22 14:49:00,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138408945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:49:00,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:49:00,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:49:00,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536519211] [2021-11-22 14:49:00,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:49:00,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:49:00,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:49:00,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:49:00,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:49:00,568 INFO L87 Difference]: Start difference. First operand 40976 states and 60340 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:49:06,183 INFO L93 Difference]: Finished difference Result 84243 states and 127463 transitions. [2021-11-22 14:49:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:49:06,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2021-11-22 14:49:06,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:49:06,438 INFO L225 Difference]: With dead ends: 84243 [2021-11-22 14:49:06,438 INFO L226 Difference]: Without dead ends: 44190 [2021-11-22 14:49:06,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:49:06,638 INFO L933 BasicCegarLoop]: 1152 mSDtfsCounter, 362 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 4170 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:49:06,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 4170 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-22 14:49:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44190 states. [2021-11-22 14:49:09,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44190 to 41096. [2021-11-22 14:49:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 38001 states have (on average 1.3271229704481462) internal successors, (50432), 38172 states have internal predecessors, (50432), 1380 states have call successors, (1380), 720 states have call predecessors, (1380), 1710 states have return successors, (8648), 2239 states have call predecessors, (8648), 1380 states have call successors, (8648) [2021-11-22 14:49:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 60460 transitions. [2021-11-22 14:49:09,325 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 60460 transitions. Word has length 95 [2021-11-22 14:49:09,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:49:09,326 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 60460 transitions. [2021-11-22 14:49:09,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 60460 transitions. [2021-11-22 14:49:09,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-22 14:49:09,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:49:09,340 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 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] [2021-11-22 14:49:09,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 14:49:09,341 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:49:09,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:49:09,342 INFO L85 PathProgramCache]: Analyzing trace with hash -357591973, now seen corresponding path program 1 times [2021-11-22 14:49:09,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:49:09,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619002834] [2021-11-22 14:49:09,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:49:09,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:49:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:49:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-22 14:49:09,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:49:09,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619002834] [2021-11-22 14:49:09,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619002834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:49:09,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:49:09,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 14:49:09,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118411596] [2021-11-22 14:49:09,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:49:09,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:49:09,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:49:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:49:09,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:49:09,678 INFO L87 Difference]: Start difference. First operand 41096 states and 60460 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:49:18,326 INFO L93 Difference]: Finished difference Result 99754 states and 147559 transitions. [2021-11-22 14:49:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:49:18,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2021-11-22 14:49:18,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:49:18,655 INFO L225 Difference]: With dead ends: 99754 [2021-11-22 14:49:18,655 INFO L226 Difference]: Without dead ends: 58668 [2021-11-22 14:49:18,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-22 14:49:18,885 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 1664 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 9267 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:49:18,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1671 Valid, 9267 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-11-22 14:49:18,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58668 states. [2021-11-22 14:49:21,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58668 to 41192. [2021-11-22 14:49:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41192 states, 38061 states have (on average 1.32660728830036) internal successors, (50492), 38256 states have internal predecessors, (50492), 1380 states have call successors, (1380), 720 states have call predecessors, (1380), 1746 states have return successors, (8696), 2251 states have call predecessors, (8696), 1380 states have call successors, (8696) [2021-11-22 14:49:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41192 states to 41192 states and 60568 transitions. [2021-11-22 14:49:21,728 INFO L78 Accepts]: Start accepts. Automaton has 41192 states and 60568 transitions. Word has length 95 [2021-11-22 14:49:21,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:49:21,729 INFO L470 AbstractCegarLoop]: Abstraction has 41192 states and 60568 transitions. [2021-11-22 14:49:21,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 41192 states and 60568 transitions. [2021-11-22 14:49:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 14:49:21,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:49:21,742 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-22 14:49:21,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 14:49:21,743 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:49:21,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:49:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1557307614, now seen corresponding path program 1 times [2021-11-22 14:49:21,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:49:21,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995075908] [2021-11-22 14:49:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:49:21,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:49:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:49:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 14:49:22,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:49:22,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995075908] [2021-11-22 14:49:22,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995075908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:49:22,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576368576] [2021-11-22 14:49:22,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:49:22,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:49:22,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:49:22,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:49:22,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:49:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:22,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 3195 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 14:49:22,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:49:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 14:49:23,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 14:49:23,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576368576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:49:23,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 14:49:23,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-11-22 14:49:23,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256393782] [2021-11-22 14:49:23,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:49:23,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 14:49:23,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:49:23,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 14:49:23,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-22 14:49:23,182 INFO L87 Difference]: Start difference. First operand 41192 states and 60568 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:49:26,863 INFO L93 Difference]: Finished difference Result 96966 states and 142523 transitions. [2021-11-22 14:49:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 14:49:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2021-11-22 14:49:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:49:27,128 INFO L225 Difference]: With dead ends: 96966 [2021-11-22 14:49:27,128 INFO L226 Difference]: Without dead ends: 55784 [2021-11-22 14:49:27,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-22 14:49:27,603 INFO L933 BasicCegarLoop]: 2428 mSDtfsCounter, 1300 mSDsluCounter, 8249 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 10677 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:49:27,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1306 Valid, 10677 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:49:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55784 states. [2021-11-22 14:49:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55784 to 41396. [2021-11-22 14:49:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41396 states, 38247 states have (on average 1.3250189557350904) internal successors, (50678), 38460 states have internal predecessors, (50678), 1380 states have call successors, (1380), 720 states have call predecessors, (1380), 1764 states have return successors, (8744), 2251 states have call predecessors, (8744), 1380 states have call successors, (8744) [2021-11-22 14:49:30,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41396 states to 41396 states and 60802 transitions. [2021-11-22 14:49:30,209 INFO L78 Accepts]: Start accepts. Automaton has 41396 states and 60802 transitions. Word has length 94 [2021-11-22 14:49:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:49:30,209 INFO L470 AbstractCegarLoop]: Abstraction has 41396 states and 60802 transitions. [2021-11-22 14:49:30,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:30,210 INFO L276 IsEmpty]: Start isEmpty. Operand 41396 states and 60802 transitions. [2021-11-22 14:49:30,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-22 14:49:30,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:49:30,216 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-22 14:49:30,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-22 14:49:30,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd78a9e6-d75c-4944-8c61-20dc350ac27d/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-22 14:49:30,423 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-22 14:49:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:49:30,424 INFO L85 PathProgramCache]: Analyzing trace with hash 970501600, now seen corresponding path program 1 times [2021-11-22 14:49:30,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:49:30,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305851306] [2021-11-22 14:49:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:49:30,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:49:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-22 14:49:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:49:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 14:49:30,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:49:30,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305851306] [2021-11-22 14:49:30,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305851306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:49:30,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:49:30,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 14:49:30,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658974512] [2021-11-22 14:49:30,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:49:30,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 14:49:30,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:49:30,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 14:49:30,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:49:30,839 INFO L87 Difference]: Start difference. First operand 41396 states and 60802 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-22 14:49:37,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:49:37,077 INFO L93 Difference]: Finished difference Result 91155 states and 144064 transitions. [2021-11-22 14:49:37,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 14:49:37,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2021-11-22 14:49:37,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:49:37,332 INFO L225 Difference]: With dead ends: 91155 [2021-11-22 14:49:37,332 INFO L226 Difference]: Without dead ends: 49697 [2021-11-22 14:49:37,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 14:49:37,599 INFO L933 BasicCegarLoop]: 1152 mSDtfsCounter, 496 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 4155 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-22 14:49:37,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 4155 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-22 14:49:37,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49697 states.