./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ --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 cb8f0ebb3c2471fcffc912ab6e7b9ec5c4e0cbee8604050053df01c587aed5a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:53:07,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:53:07,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:53:07,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:53:07,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:53:07,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:53:07,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:53:07,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:53:07,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:53:07,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:53:07,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:53:07,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:53:07,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:53:07,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:53:07,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:53:07,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:53:07,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:53:07,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:53:07,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:53:07,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:53:07,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:53:07,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:53:07,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:53:07,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:53:07,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:53:07,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:53:07,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:53:07,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:53:07,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:53:07,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:53:07,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:53:07,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:53:07,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:53:07,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:53:07,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:53:07,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:53:07,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:53:07,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:53:07,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:53:07,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:53:07,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:53:07,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:53:07,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:53:07,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:53:07,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:53:07,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:53:07,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:53:07,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:53:07,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:53:07,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:53:07,737 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:53:07,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:53:07,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:53:07,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:53:07,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:53:07,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:53:07,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:53:07,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:53:07,741 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:53:07,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:53:07,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:53:07,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:53:07,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:53:07,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:07,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:53:07,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:53:07,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:53:07,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:53:07,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:53:07,745 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:53:07,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:53:07,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:53:07,748 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_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb8f0ebb3c2471fcffc912ab6e7b9ec5c4e0cbee8604050053df01c587aed5a7 [2022-10-17 10:53:08,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:53:08,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:53:08,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:53:08,098 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:53:08,099 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:53:08,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2022-10-17 10:53:08,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/data/c9dd02f90/fbebb3e297f14457b938c6a563c0719c/FLAGb56523372 [2022-10-17 10:53:09,065 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:53:09,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2022-10-17 10:53:09,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/data/c9dd02f90/fbebb3e297f14457b938c6a563c0719c/FLAGb56523372 [2022-10-17 10:53:09,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/data/c9dd02f90/fbebb3e297f14457b938c6a563c0719c [2022-10-17 10:53:09,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:53:09,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:53:09,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:09,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:53:09,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:53:09,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:09" (1/1) ... [2022-10-17 10:53:09,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2203e55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:09, skipping insertion in model container [2022-10-17 10:53:09,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:09" (1/1) ... [2022-10-17 10:53:09,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:53:09,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:53:11,163 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_baeca084-840d-4ea6-8e04-401288e6482e/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2022-10-17 10:53:11,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:11,232 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:53:11,631 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_baeca084-840d-4ea6-8e04-401288e6482e/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2022-10-17 10:53:11,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:11,766 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:53:11,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11 WrapperNode [2022-10-17 10:53:11,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:11,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:11,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:53:11,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:53:11,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:11,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,069 INFO L138 Inliner]: procedures = 191, calls = 1268, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 3442 [2022-10-17 10:53:12,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:12,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:53:12,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:53:12,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:53:12,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:53:12,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:53:12,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:53:12,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:53:12,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (1/1) ... [2022-10-17 10:53:12,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:12,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:12,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:53:12,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baeca084-840d-4ea6-8e04-401288e6482e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:53:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-10-17 10:53:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-10-17 10:53:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 10:53:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 10:53:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-17 10:53:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-17 10:53:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:53:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:53:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:53:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:53:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-10-17 10:53:12,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-10-17 10:53:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-10-17 10:53:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-10-17 10:53:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:53:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:53:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-10-17 10:53:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-10-17 10:53:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-10-17 10:53:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-10-17 10:53:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 10:53:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 10:53:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:53:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:53:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-10-17 10:53:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-10-17 10:53:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2022-10-17 10:53:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2022-10-17 10:53:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-10-17 10:53:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-10-17 10:53:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-17 10:53:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-17 10:53:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-10-17 10:53:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-10-17 10:53:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-10-17 10:53:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-10-17 10:53:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-10-17 10:53:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-10-17 10:53:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:53:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:53:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:53:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:53:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:53:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-10-17 10:53:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-10-17 10:53:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-10-17 10:53:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-10-17 10:53:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-10-17 10:53:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-10-17 10:53:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-17 10:53:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-17 10:53:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:53:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:53:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-10-17 10:53:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-10-17 10:53:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:53:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-10-17 10:53:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-10-17 10:53:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-10-17 10:53:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2022-10-17 10:53:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:53:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:53:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-10-17 10:53:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-10-17 10:53:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 10:53:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 10:53:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:53:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-10-17 10:53:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-10-17 10:53:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-10-17 10:53:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-10-17 10:53:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:53:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:53:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:53:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:53:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:53:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-10-17 10:53:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-10-17 10:53:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-10-17 10:53:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-10-17 10:53:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:53:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-10-17 10:53:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-10-17 10:53:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-10-17 10:53:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-10-17 10:53:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-10-17 10:53:12,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-10-17 10:53:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 10:53:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 10:53:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-17 10:53:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-17 10:53:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:53:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:53:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-17 10:53:12,558 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-17 10:53:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:53:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:53:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 10:53:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 10:53:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-10-17 10:53:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-10-17 10:53:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:53:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:53:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2022-10-17 10:53:12,561 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2022-10-17 10:53:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-17 10:53:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-17 10:53:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-10-17 10:53:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-10-17 10:53:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:53:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:53:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-10-17 10:53:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-10-17 10:53:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 10:53:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 10:53:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-10-17 10:53:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-10-17 10:53:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:53:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:53:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 10:53:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 10:53:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-10-17 10:53:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-10-17 10:53:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-10-17 10:53:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-10-17 10:53:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:53:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:53:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 10:53:12,580 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 10:53:12,580 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-10-17 10:53:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-10-17 10:53:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-17 10:53:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-17 10:53:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-10-17 10:53:12,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-10-17 10:53:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:53:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-17 10:53:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-17 10:53:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-17 10:53:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-17 10:53:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:53:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-17 10:53:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-17 10:53:12,583 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-17 10:53:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-17 10:53:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:53:12,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:53:12,584 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:53:12,584 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:53:13,425 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:53:13,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:53:35,028 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:53:35,050 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:53:35,051 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:53:35,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:35 BoogieIcfgContainer [2022-10-17 10:53:35,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:53:35,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:53:35,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:53:35,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:53:35,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:53:09" (1/3) ... [2022-10-17 10:53:35,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166077bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:35, skipping insertion in model container [2022-10-17 10:53:35,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:11" (2/3) ... [2022-10-17 10:53:35,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166077bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:35, skipping insertion in model container [2022-10-17 10:53:35,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:35" (3/3) ... [2022-10-17 10:53:35,068 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2022-10-17 10:53:35,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:53:35,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:53:35,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:53:35,231 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72f9ba98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:53:35,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:53:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 1278 states, 894 states have (on average 1.407158836689038) internal successors, (1258), 934 states have internal predecessors, (1258), 317 states have call successors, (317), 65 states have call predecessors, (317), 65 states have return successors, (317), 314 states have call predecessors, (317), 317 states have call successors, (317) [2022-10-17 10:53:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 10:53:35,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:35,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:35,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1087819150, now seen corresponding path program 1 times [2022-10-17 10:53:35,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:35,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141908857] [2022-10-17 10:53:35,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:53:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:36,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:53:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:36,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:36,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141908857] [2022-10-17 10:53:36,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141908857] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:36,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:36,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:53:36,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126661267] [2022-10-17 10:53:36,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:36,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:53:36,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:53:36,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:53:36,669 INFO L87 Difference]: Start difference. First operand has 1278 states, 894 states have (on average 1.407158836689038) internal successors, (1258), 934 states have internal predecessors, (1258), 317 states have call successors, (317), 65 states have call predecessors, (317), 65 states have return successors, (317), 314 states have call predecessors, (317), 317 states have call successors, (317) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:53:38,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []