./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX --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 571c11c6f0409625a5365ddd11520f6f1824739b70fa0b8a35b203b7dabba441 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:38:07,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:38:07,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:38:07,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:38:07,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:38:07,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:38:07,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:38:07,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:38:07,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:38:07,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:38:07,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:38:07,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:38:07,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:38:07,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:38:07,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:38:07,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:38:07,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:38:07,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:38:07,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:38:07,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:38:07,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:38:07,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:38:07,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:38:07,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:38:07,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:38:07,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:38:07,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:38:07,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:38:07,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:38:07,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:38:07,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:38:07,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:38:07,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:38:07,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:38:07,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:38:07,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:38:07,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:38:07,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:38:07,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:38:07,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:38:07,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:38:07,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-09 09:38:07,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:38:07,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:38:07,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:38:07,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:38:07,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:38:07,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:38:07,416 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:38:07,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:38:07,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:38:07,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:38:07,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:38:07,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:38:07,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:38:07,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:38:07,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:38:07,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:38:07,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:38:07,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:38:07,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:38:07,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:38:07,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:38:07,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:38:07,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:38:07,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:38:07,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:38:07,422 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:38:07,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:38:07,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:38:07,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:38:07,425 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_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 571c11c6f0409625a5365ddd11520f6f1824739b70fa0b8a35b203b7dabba441 [2021-11-09 09:38:07,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:38:07,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:38:07,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:38:07,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:38:07,777 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:38:07,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2021-11-09 09:38:07,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/data/b5a83f98b/f8360f96b02d45828bd58ffac411922a/FLAGaebfa68a9 [2021-11-09 09:38:08,894 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:38:08,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2021-11-09 09:38:08,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/data/b5a83f98b/f8360f96b02d45828bd58ffac411922a/FLAGaebfa68a9 [2021-11-09 09:38:09,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/data/b5a83f98b/f8360f96b02d45828bd58ffac411922a [2021-11-09 09:38:09,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:38:09,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:38:09,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:38:09,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:38:09,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:38:09,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:38:09" (1/1) ... [2021-11-09 09:38:09,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f32c171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:09, skipping insertion in model container [2021-11-09 09:38:09,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:38:09" (1/1) ... [2021-11-09 09:38:09,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:38:09,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:38:10,146 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3747] [2021-11-09 09:38:10,147 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3748-3749] [2021-11-09 09:38:10,507 WARN L228 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_1998686a-041c-430c-80d9-32d201d0e3cc/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i[117013,117026] [2021-11-09 09:38:11,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:38:11,941 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:38:12,083 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3747] [2021-11-09 09:38:12,083 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3748-3749] [2021-11-09 09:38:12,094 WARN L228 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_1998686a-041c-430c-80d9-32d201d0e3cc/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i[117013,117026] [2021-11-09 09:38:12,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:38:12,594 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:38:12,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12 WrapperNode [2021-11-09 09:38:12,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:38:12,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:38:12,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:38:12,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:38:12,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:12,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:13,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:38:13,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:38:13,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:38:13,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:38:13,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:13,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:14,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:14,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:15,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:15,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:15,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:15,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:38:15,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:38:15,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:38:15,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:38:15,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (1/1) ... [2021-11-09 09:38:15,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:38:15,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:38:15,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:38:15,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:38:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_resume [2021-11-09 09:38:15,695 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_resume [2021-11-09 09:38:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_complete_request [2021-11-09 09:38:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_complete_request [2021-11-09 09:38:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_pullup [2021-11-09 09:38:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_pullup [2021-11-09 09:38:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_phy_disable [2021-11-09 09:38:15,696 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_phy_disable [2021-11-09 09:38:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-09 09:38:15,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-09 09:38:15,697 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_disconnect [2021-11-09 09:38:15,697 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_disconnect [2021-11-09 09:38:15,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:38:15,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-09 09:38:15,698 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_probe [2021-11-09 09:38:15,698 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_probe [2021-11-09 09:38:15,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:38:15,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-09 09:38:15,698 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_udc_stop [2021-11-09 09:38:15,698 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_udc_stop [2021-11-09 09:38:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_process_req_feature [2021-11-09 09:38:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_process_req_feature [2021-11-09 09:38:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-09 09:38:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-09 09:38:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-09 09:38:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_phy_init [2021-11-09 09:38:15,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_phy_init [2021-11-09 09:38:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-09 09:38:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_complete_setup [2021-11-09 09:38:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_complete_setup [2021-11-09 09:38:15,701 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_process_control [2021-11-09 09:38:15,701 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_process_control [2021-11-09 09:38:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:38:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_disable [2021-11-09 09:38:15,702 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_disable [2021-11-09 09:38:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:38:15,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:38:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-09 09:38:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-09 09:38:15,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-09 09:38:15,703 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_phy_enable [2021-11-09 09:38:15,704 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_phy_enable [2021-11-09 09:38:15,704 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_requests [2021-11-09 09:38:15,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_requests [2021-11-09 09:38:15,705 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_remove [2021-11-09 09:38:15,705 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_remove [2021-11-09 09:38:15,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-09 09:38:15,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-09 09:38:15,705 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_dequeue [2021-11-09 09:38:15,705 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_dequeue [2021-11-09 09:38:15,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:38:15,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-09 09:38:15,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-09 09:38:15,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:38:15,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:40:01,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:40:01,928 INFO L299 CfgBuilder]: Removed 4193 assume(true) statements. [2021-11-09 09:40:01,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:40:01 BoogieIcfgContainer [2021-11-09 09:40:01,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:40:01,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:40:01,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:40:01,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:40:01,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:38:09" (1/3) ... [2021-11-09 09:40:01,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e58944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:40:01, skipping insertion in model container [2021-11-09 09:40:01,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:38:12" (2/3) ... [2021-11-09 09:40:01,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e58944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:40:01, skipping insertion in model container [2021-11-09 09:40:01,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:40:01" (3/3) ... [2021-11-09 09:40:01,944 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2021-11-09 09:40:01,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:40:01,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-09 09:40:02,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:40:02,037 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 [2021-11-09 09:40:02,038 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-09 09:40:02,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 4715 states, 4645 states have (on average 1.37502691065662) internal successors, (6387), 4655 states have internal predecessors, (6387), 43 states have call successors, (43), 20 states have call predecessors, (43), 20 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2021-11-09 09:40:02,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 09:40:02,141 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:02,142 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:02,143 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:02,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash 468869916, now seen corresponding path program 1 times [2021-11-09 09:40:02,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:02,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557504648] [2021-11-09 09:40:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:02,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:40:03,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:03,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557504648] [2021-11-09 09:40:03,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557504648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:03,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:03,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:40:03,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098476617] [2021-11-09 09:40:03,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:40:03,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:03,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:40:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:03,564 INFO L87 Difference]: Start difference. First operand has 4715 states, 4645 states have (on average 1.37502691065662) internal successors, (6387), 4655 states have internal predecessors, (6387), 43 states have call successors, (43), 20 states have call predecessors, (43), 20 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-11-09 09:40:04,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:04,355 INFO L93 Difference]: Finished difference Result 13432 states and 18514 transitions. [2021-11-09 09:40:04,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:40:04,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-09 09:40:04,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:04,438 INFO L225 Difference]: With dead ends: 13432 [2021-11-09 09:40:04,438 INFO L226 Difference]: Without dead ends: 8547 [2021-11-09 09:40:04,477 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:04,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-11-09 09:40:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8461. [2021-11-09 09:40:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8461 states, 8331 states have (on average 1.3507382066978755) internal successors, (11253), 8344 states have internal predecessors, (11253), 84 states have call successors, (84), 40 states have call predecessors, (84), 40 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2021-11-09 09:40:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 11421 transitions. [2021-11-09 09:40:05,070 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 11421 transitions. Word has length 34 [2021-11-09 09:40:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:05,072 INFO L470 AbstractCegarLoop]: Abstraction has 8461 states and 11421 transitions. [2021-11-09 09:40:05,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-11-09 09:40:05,072 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 11421 transitions. [2021-11-09 09:40:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-09 09:40:05,092 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:05,092 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:05,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:40:05,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:05,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:05,098 INFO L85 PathProgramCache]: Analyzing trace with hash -425588124, now seen corresponding path program 1 times [2021-11-09 09:40:05,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:05,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284784008] [2021-11-09 09:40:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:05,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 09:40:05,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:05,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284784008] [2021-11-09 09:40:05,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284784008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:05,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:05,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:40:05,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083542607] [2021-11-09 09:40:05,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:40:05,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:05,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:40:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:05,959 INFO L87 Difference]: Start difference. First operand 8461 states and 11421 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 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) [2021-11-09 09:40:06,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:06,426 INFO L93 Difference]: Finished difference Result 11789 states and 15823 transitions. [2021-11-09 09:40:06,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:40:06,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-09 09:40:06,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:06,509 INFO L225 Difference]: With dead ends: 11789 [2021-11-09 09:40:06,509 INFO L226 Difference]: Without dead ends: 11783 [2021-11-09 09:40:06,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11783 states. [2021-11-09 09:40:06,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11783 to 9261. [2021-11-09 09:40:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9261 states, 9094 states have (on average 1.3405542115680669) internal successors, (12191), 9110 states have internal predecessors, (12191), 104 states have call successors, (104), 58 states have call predecessors, (104), 58 states have return successors, (136), 104 states have call predecessors, (136), 104 states have call successors, (136) [2021-11-09 09:40:06,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9261 states to 9261 states and 12431 transitions. [2021-11-09 09:40:06,896 INFO L78 Accepts]: Start accepts. Automaton has 9261 states and 12431 transitions. Word has length 75 [2021-11-09 09:40:06,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:06,897 INFO L470 AbstractCegarLoop]: Abstraction has 9261 states and 12431 transitions. [2021-11-09 09:40:06,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 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) [2021-11-09 09:40:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 9261 states and 12431 transitions. [2021-11-09 09:40:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-09 09:40:06,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:06,906 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:06,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:40:06,907 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:06,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1359487379, now seen corresponding path program 1 times [2021-11-09 09:40:06,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:06,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352674919] [2021-11-09 09:40:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:06,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:40:07,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:07,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352674919] [2021-11-09 09:40:07,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352674919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:07,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:07,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:40:07,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505023781] [2021-11-09 09:40:07,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:40:07,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:07,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:40:07,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:07,483 INFO L87 Difference]: Start difference. First operand 9261 states and 12431 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:08,302 INFO L93 Difference]: Finished difference Result 27139 states and 36483 transitions. [2021-11-09 09:40:08,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:40:08,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-09 09:40:08,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:08,408 INFO L225 Difference]: With dead ends: 27139 [2021-11-09 09:40:08,409 INFO L226 Difference]: Without dead ends: 17950 [2021-11-09 09:40:08,444 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:08,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17950 states. [2021-11-09 09:40:08,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17950 to 17938. [2021-11-09 09:40:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17938 states, 17637 states have (on average 1.3439360435448207) internal successors, (23703), 17659 states have internal predecessors, (23703), 180 states have call successors, (180), 106 states have call predecessors, (180), 116 states have return successors, (242), 194 states have call predecessors, (242), 180 states have call successors, (242) [2021-11-09 09:40:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17938 states to 17938 states and 24125 transitions. [2021-11-09 09:40:09,086 INFO L78 Accepts]: Start accepts. Automaton has 17938 states and 24125 transitions. Word has length 98 [2021-11-09 09:40:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:09,087 INFO L470 AbstractCegarLoop]: Abstraction has 17938 states and 24125 transitions. [2021-11-09 09:40:09,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:09,088 INFO L276 IsEmpty]: Start isEmpty. Operand 17938 states and 24125 transitions. [2021-11-09 09:40:09,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-09 09:40:09,101 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:09,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:09,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:40:09,102 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:09,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:09,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1942912063, now seen corresponding path program 1 times [2021-11-09 09:40:09,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:09,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093235796] [2021-11-09 09:40:09,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:09,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:09,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:40:09,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:09,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093235796] [2021-11-09 09:40:09,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093235796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:09,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:09,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:40:09,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119268437] [2021-11-09 09:40:09,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:40:09,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:09,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:40:09,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:09,776 INFO L87 Difference]: Start difference. First operand 17938 states and 24125 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:10,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:10,927 INFO L93 Difference]: Finished difference Result 49508 states and 66638 transitions. [2021-11-09 09:40:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:40:10,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-09 09:40:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:11,073 INFO L225 Difference]: With dead ends: 49508 [2021-11-09 09:40:11,074 INFO L226 Difference]: Without dead ends: 31642 [2021-11-09 09:40:11,140 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31642 states. [2021-11-09 09:40:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31642 to 31632. [2021-11-09 09:40:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31632 states, 31107 states have (on average 1.3451313209245508) internal successors, (41843), 31144 states have internal predecessors, (41843), 317 states have call successors, (317), 188 states have call predecessors, (317), 203 states have return successors, (426), 338 states have call predecessors, (426), 317 states have call successors, (426) [2021-11-09 09:40:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31632 states to 31632 states and 42586 transitions. [2021-11-09 09:40:12,409 INFO L78 Accepts]: Start accepts. Automaton has 31632 states and 42586 transitions. Word has length 104 [2021-11-09 09:40:12,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:12,411 INFO L470 AbstractCegarLoop]: Abstraction has 31632 states and 42586 transitions. [2021-11-09 09:40:12,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:12,412 INFO L276 IsEmpty]: Start isEmpty. Operand 31632 states and 42586 transitions. [2021-11-09 09:40:12,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-09 09:40:12,438 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:12,439 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:12,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:40:12,440 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:12,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1371154034, now seen corresponding path program 1 times [2021-11-09 09:40:12,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:12,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633633633] [2021-11-09 09:40:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:12,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:13,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:40:13,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:13,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633633633] [2021-11-09 09:40:13,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633633633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:13,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:13,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:40:13,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44480593] [2021-11-09 09:40:13,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:40:13,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:13,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:40:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:13,079 INFO L87 Difference]: Start difference. First operand 31632 states and 42586 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:16,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:16,178 INFO L93 Difference]: Finished difference Result 63193 states and 85091 transitions. [2021-11-09 09:40:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:40:16,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-09 09:40:16,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:16,321 INFO L225 Difference]: With dead ends: 63193 [2021-11-09 09:40:16,321 INFO L226 Difference]: Without dead ends: 31629 [2021-11-09 09:40:16,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:40:16,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31629 states. [2021-11-09 09:40:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31629 to 31587. [2021-11-09 09:40:17,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31587 states, 31062 states have (on average 1.3454059622690104) internal successors, (41791), 31099 states have internal predecessors, (41791), 317 states have call successors, (317), 188 states have call predecessors, (317), 203 states have return successors, (426), 338 states have call predecessors, (426), 317 states have call successors, (426) [2021-11-09 09:40:17,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31587 states to 31587 states and 42534 transitions. [2021-11-09 09:40:17,363 INFO L78 Accepts]: Start accepts. Automaton has 31587 states and 42534 transitions. Word has length 115 [2021-11-09 09:40:17,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:17,364 INFO L470 AbstractCegarLoop]: Abstraction has 31587 states and 42534 transitions. [2021-11-09 09:40:17,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (6), 1 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:17,364 INFO L276 IsEmpty]: Start isEmpty. Operand 31587 states and 42534 transitions. [2021-11-09 09:40:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-09 09:40:17,389 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:17,390 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:17,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:40:17,390 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1763482206, now seen corresponding path program 1 times [2021-11-09 09:40:17,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:17,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665888555] [2021-11-09 09:40:17,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:17,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-09 09:40:20,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:20,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665888555] [2021-11-09 09:40:20,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665888555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:20,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:20,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:40:20,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839914758] [2021-11-09 09:40:20,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:40:20,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:40:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:40:20,389 INFO L87 Difference]: Start difference. First operand 31587 states and 42534 transitions. Second operand has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (6), 3 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:41,072 INFO L93 Difference]: Finished difference Result 47949 states and 64457 transitions. [2021-11-09 09:40:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:40:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (6), 3 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-09 09:40:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:41,158 INFO L225 Difference]: With dead ends: 47949 [2021-11-09 09:40:41,159 INFO L226 Difference]: Without dead ends: 16434 [2021-11-09 09:40:41,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:40:41,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16434 states. [2021-11-09 09:40:41,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16434 to 16434. [2021-11-09 09:40:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16434 states, 16069 states have (on average 1.3219864335055076) internal successors, (21243), 16089 states have internal predecessors, (21243), 225 states have call successors, (225), 128 states have call predecessors, (225), 138 states have return successors, (305), 239 states have call predecessors, (305), 225 states have call successors, (305) [2021-11-09 09:40:41,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16434 states to 16434 states and 21773 transitions. [2021-11-09 09:40:41,747 INFO L78 Accepts]: Start accepts. Automaton has 16434 states and 21773 transitions. Word has length 133 [2021-11-09 09:40:41,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:41,748 INFO L470 AbstractCegarLoop]: Abstraction has 16434 states and 21773 transitions. [2021-11-09 09:40:41,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.2) internal successors, (126), 6 states have internal predecessors, (126), 3 states have call successors, (6), 3 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:40:41,749 INFO L276 IsEmpty]: Start isEmpty. Operand 16434 states and 21773 transitions. [2021-11-09 09:40:41,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-09 09:40:41,803 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:41,804 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:41,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:40:41,804 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:41,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1126537892, now seen corresponding path program 1 times [2021-11-09 09:40:41,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:41,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857097530] [2021-11-09 09:40:41,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:41,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-09 09:40:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:40:42,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:42,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857097530] [2021-11-09 09:40:42,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857097530] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:40:42,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971901306] [2021-11-09 09:40:42,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:42,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:40:42,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:40:42,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:40:42,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:40:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:48,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 6455 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:40:49,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:40:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-09 09:40:50,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971901306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:50,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-09 09:40:50,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-09 09:40:50,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347781007] [2021-11-09 09:40:50,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:40:50,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:50,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:40:50,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:40:50,141 INFO L87 Difference]: Start difference. First operand 16434 states and 21773 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-09 09:40:50,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:40:50,984 INFO L93 Difference]: Finished difference Result 42505 states and 56301 transitions. [2021-11-09 09:40:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:40:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2021-11-09 09:40:50,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:40:51,121 INFO L225 Difference]: With dead ends: 42505 [2021-11-09 09:40:51,121 INFO L226 Difference]: Without dead ends: 26143 [2021-11-09 09:40:51,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:40:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26143 states. [2021-11-09 09:40:52,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26143 to 26138. [2021-11-09 09:40:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26138 states, 25575 states have (on average 1.3212512218963832) internal successors, (33791), 25599 states have internal predecessors, (33791), 335 states have call successors, (335), 200 states have call predecessors, (335), 226 states have return successors, (465), 373 states have call predecessors, (465), 335 states have call successors, (465) [2021-11-09 09:40:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26138 states to 26138 states and 34591 transitions. [2021-11-09 09:40:52,205 INFO L78 Accepts]: Start accepts. Automaton has 26138 states and 34591 transitions. Word has length 205 [2021-11-09 09:40:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:40:52,205 INFO L470 AbstractCegarLoop]: Abstraction has 26138 states and 34591 transitions. [2021-11-09 09:40:52,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-09 09:40:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 26138 states and 34591 transitions. [2021-11-09 09:40:52,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-09 09:40:52,299 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:40:52,299 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:40:52,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:40:52,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:40:52,528 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:40:52,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:40:52,529 INFO L85 PathProgramCache]: Analyzing trace with hash 784386469, now seen corresponding path program 1 times [2021-11-09 09:40:52,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:40:52,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304757369] [2021-11-09 09:40:52,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:40:52,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:40:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:55,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-09 09:40:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:40:55,198 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 09:40:55,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:40:55,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304757369] [2021-11-09 09:40:55,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304757369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:40:55,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:40:55,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:40:55,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488168565] [2021-11-09 09:40:55,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:40:55,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:40:55,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:40:55,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:40:55,202 INFO L87 Difference]: Start difference. First operand 26138 states and 34591 transitions. Second operand has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-09 09:41:10,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:41:10,015 INFO L93 Difference]: Finished difference Result 56808 states and 75354 transitions. [2021-11-09 09:41:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:41:10,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 206 [2021-11-09 09:41:10,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:41:10,169 INFO L225 Difference]: With dead ends: 56808 [2021-11-09 09:41:10,169 INFO L226 Difference]: Without dead ends: 30742 [2021-11-09 09:41:10,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-09 09:41:10,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30742 states. [2021-11-09 09:41:11,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30742 to 26314. [2021-11-09 09:41:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26314 states, 25721 states have (on average 1.3197387348858909) internal successors, (33945), 25759 states have internal predecessors, (33945), 335 states have call successors, (335), 200 states have call predecessors, (335), 256 states have return successors, (521), 389 states have call predecessors, (521), 335 states have call successors, (521) [2021-11-09 09:41:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26314 states to 26314 states and 34801 transitions. [2021-11-09 09:41:11,315 INFO L78 Accepts]: Start accepts. Automaton has 26314 states and 34801 transitions. Word has length 206 [2021-11-09 09:41:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:41:11,318 INFO L470 AbstractCegarLoop]: Abstraction has 26314 states and 34801 transitions. [2021-11-09 09:41:11,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.285714285714285) internal successors, (191), 6 states have internal predecessors, (191), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-09 09:41:11,318 INFO L276 IsEmpty]: Start isEmpty. Operand 26314 states and 34801 transitions. [2021-11-09 09:41:11,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-09 09:41:11,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:41:11,413 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:41:11,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 09:41:11,413 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:41:11,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:11,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1640849171, now seen corresponding path program 1 times [2021-11-09 09:41:11,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:11,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48609778] [2021-11-09 09:41:11,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:11,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-09 09:41:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 09:41:14,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:41:14,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48609778] [2021-11-09 09:41:14,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48609778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:41:14,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:41:14,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:41:14,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896447107] [2021-11-09 09:41:14,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:41:14,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:41:14,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:41:14,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:41:14,479 INFO L87 Difference]: Start difference. First operand 26314 states and 34801 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-09 09:41:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:41:27,302 INFO L93 Difference]: Finished difference Result 52988 states and 70436 transitions. [2021-11-09 09:41:27,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 09:41:27,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 212 [2021-11-09 09:41:27,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:41:27,419 INFO L225 Difference]: With dead ends: 52988 [2021-11-09 09:41:27,419 INFO L226 Difference]: Without dead ends: 26746 [2021-11-09 09:41:27,490 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:41:27,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26746 states. [2021-11-09 09:41:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26746 to 26328. [2021-11-09 09:41:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26328 states, 25735 states have (on average 1.3195647950262288) internal successors, (33959), 25773 states have internal predecessors, (33959), 335 states have call successors, (335), 200 states have call predecessors, (335), 256 states have return successors, (521), 389 states have call predecessors, (521), 335 states have call successors, (521) [2021-11-09 09:41:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26328 states to 26328 states and 34815 transitions. [2021-11-09 09:41:28,629 INFO L78 Accepts]: Start accepts. Automaton has 26328 states and 34815 transitions. Word has length 212 [2021-11-09 09:41:28,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:41:28,629 INFO L470 AbstractCegarLoop]: Abstraction has 26328 states and 34815 transitions. [2021-11-09 09:41:28,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-09 09:41:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 26328 states and 34815 transitions. [2021-11-09 09:41:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-09 09:41:28,727 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:41:28,727 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:41:28,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:41:28,727 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-09 09:41:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:41:28,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1027824913, now seen corresponding path program 1 times [2021-11-09 09:41:28,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:41:28,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700582856] [2021-11-09 09:41:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:28,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:41:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-09 09:41:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:41:30,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-09 09:41:30,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:41:30,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700582856] [2021-11-09 09:41:30,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700582856] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:41:30,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458499869] [2021-11-09 09:41:30,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:41:30,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:41:30,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:41:30,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:41:30,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1998686a-041c-430c-80d9-32d201d0e3cc/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process