./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:24:12,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:24:12,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:24:12,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:24:12,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:24:12,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:24:12,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:24:12,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:24:12,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:24:12,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:24:12,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:24:12,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:24:12,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:24:12,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:24:12,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:24:12,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:24:12,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:24:12,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:24:12,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:24:12,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:24:12,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:24:12,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:24:12,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:24:12,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:24:12,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:24:12,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:24:12,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:24:12,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:24:12,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:24:12,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:24:12,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:24:12,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:24:12,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:24:12,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:24:12,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:24:12,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:24:12,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:24:12,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:24:12,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:24:12,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:24:12,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:24:12,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 16:24:12,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:24:12,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:24:12,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:24:12,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:24:12,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:24:12,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:24:12,744 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:24:12,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:24:12,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:24:12,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:24:12,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:24:12,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:24:12,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:24:12,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:24:12,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:24:12,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:24:12,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:24:12,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:24:12,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:24:12,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:24:12,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:24:12,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:24:12,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:24:12,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:24:12,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:24:12,750 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:24:12,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:24:12,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:24:12,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:24:12,752 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_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2021-11-22 16:24:12,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:24:13,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:24:13,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:24:13,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:24:13,030 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:24:13,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-11-22 16:24:13,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/data/db7836f90/8a497192e91044f6b9842f56e0d7f530/FLAG66f3f27ab [2021-11-22 16:24:14,251 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:24:14,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-11-22 16:24:14,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/data/db7836f90/8a497192e91044f6b9842f56e0d7f530/FLAG66f3f27ab [2021-11-22 16:24:14,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/data/db7836f90/8a497192e91044f6b9842f56e0d7f530 [2021-11-22 16:24:14,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:24:14,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:24:14,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:24:14,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:24:14,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:24:14,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc6a50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:14, skipping insertion in model container [2021-11-22 16:24:14,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:24:14" (1/1) ... [2021-11-22 16:24:14,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:24:14,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:24:17,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2021-11-22 16:24:18,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:24:18,062 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:24:18,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2021-11-22 16:24:18,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:24:18,944 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:24:18,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18 WrapperNode [2021-11-22 16:24:18,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:24:18,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:24:18,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:24:18,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:24:18,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:19,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:28,680 INFO L137 Inliner]: procedures = 395, calls = 4058, calls flagged for inlining = 1304, calls inlined = 34512, statements flattened = 329246 [2021-11-22 16:24:28,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:24:28,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:24:28,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:24:28,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:24:28,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:28,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:31,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:31,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:36,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:37,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:38,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:40,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:24:40,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:24:40,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:24:40,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:24:40,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (1/1) ... [2021-11-22 16:24:40,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:24:40,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:24:40,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:24:40,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da3a286-41f8-41de-95d7-f3758d040bd5/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:24:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-22 16:24:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 16:24:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:24:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 16:24:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 16:24:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 16:24:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 16:24:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:24:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 16:24:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 16:24:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:24:40,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:24:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 16:24:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 16:24:40,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:24:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 16:24:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 16:24:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 16:24:40,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:24:41,533 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:24:41,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:29:29,885 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:29:30,087 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:29:30,088 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 16:29:30,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:29:30 BoogieIcfgContainer [2021-11-22 16:29:30,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:29:30,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:29:30,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:29:30,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:29:30,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:24:14" (1/3) ... [2021-11-22 16:29:30,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a04f239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:29:30, skipping insertion in model container [2021-11-22 16:29:30,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:24:18" (2/3) ... [2021-11-22 16:29:30,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a04f239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:29:30, skipping insertion in model container [2021-11-22 16:29:30,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:29:30" (3/3) ... [2021-11-22 16:29:30,145 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2021-11-22 16:29:30,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:29:30,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-11-22 16:29:30,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:29:30,429 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:29:30,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-11-22 16:29:31,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 55706 states, 55669 states have (on average 1.289101654421671) internal successors, (71763), 55705 states have internal predecessors, (71763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:29:31,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 16:29:31,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:29:31,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:29:31,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-22 16:29:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:29:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1630323592, now seen corresponding path program 1 times [2021-11-22 16:29:31,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:29:31,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813203000] [2021-11-22 16:29:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:29:31,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:29:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:29:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:29:32,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:29:32,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813203000] [2021-11-22 16:29:32,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813203000] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:29:32,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:29:32,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:29:32,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993242993] [2021-11-22 16:29:32,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:29:32,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:29:32,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:29:32,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:29:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:29:32,197 INFO L87 Difference]: Start difference. First operand has 55706 states, 55669 states have (on average 1.289101654421671) internal successors, (71763), 55705 states have internal predecessors, (71763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:29:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:29:36,929 INFO L93 Difference]: Finished difference Result 166660 states and 214708 transitions. [2021-11-22 16:29:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:29:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-22 16:29:36,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:29:37,533 INFO L225 Difference]: With dead ends: 166660 [2021-11-22 16:29:37,533 INFO L226 Difference]: Without dead ends: 110869 [2021-11-22 16:29:37,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:29:37,695 INFO L933 BasicCegarLoop]: 71671 mSDtfsCounter, 71473 mSDsluCounter, 71351 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71473 SdHoareTripleChecker+Valid, 143022 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:29:37,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71473 Valid, 143022 Invalid, 16 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:29:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110869 states. [2021-11-22 16:29:41,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110869 to 110805. [2021-11-22 16:29:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110805 states, 110769 states have (on average 1.2877068493892696) internal successors, (142638), 110804 states have internal predecessors, (142638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:29:42,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110805 states to 110805 states and 142638 transitions. [2021-11-22 16:29:42,522 INFO L78 Accepts]: Start accepts. Automaton has 110805 states and 142638 transitions. Word has length 19 [2021-11-22 16:29:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:29:42,523 INFO L470 AbstractCegarLoop]: Abstraction has 110805 states and 142638 transitions. [2021-11-22 16:29:42,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:29:42,523 INFO L276 IsEmpty]: Start isEmpty. Operand 110805 states and 142638 transitions. [2021-11-22 16:29:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-22 16:29:42,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:29:42,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:29:42,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:29:42,537 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-22 16:29:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:29:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash -614398947, now seen corresponding path program 1 times [2021-11-22 16:29:42,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:29:42,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10018291] [2021-11-22 16:29:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:29:42,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:29:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:29:42,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:29:42,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:29:42,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10018291] [2021-11-22 16:29:42,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10018291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:29:42,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:29:42,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:29:42,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956724120] [2021-11-22 16:29:42,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:29:42,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:29:42,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:29:42,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:29:42,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:29:42,771 INFO L87 Difference]: Start difference. First operand 110805 states and 142638 transitions. 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) [2021-11-22 16:29:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:29:48,081 INFO L93 Difference]: Finished difference Result 249742 states and 321060 transitions. [2021-11-22 16:29:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:29:48,082 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 [2021-11-22 16:29:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:29:48,536 INFO L225 Difference]: With dead ends: 249742 [2021-11-22 16:29:48,537 INFO L226 Difference]: Without dead ends: 138940 [2021-11-22 16:29:48,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:29:48,778 INFO L933 BasicCegarLoop]: 71757 mSDtfsCounter, 18129 mSDsluCounter, 71287 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18129 SdHoareTripleChecker+Valid, 143044 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:29:48,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18129 Valid, 143044 Invalid, 290 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-22 16:29:48,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138940 states. [2021-11-22 16:29:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138940 to 138801. [2021-11-22 16:29:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138801 states, 138765 states have (on average 1.2845314020105933) internal successors, (178248), 138800 states have internal predecessors, (178248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:29:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138801 states to 138801 states and 178248 transitions. [2021-11-22 16:29:53,233 INFO L78 Accepts]: Start accepts. Automaton has 138801 states and 178248 transitions. Word has length 34 [2021-11-22 16:29:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:29:53,233 INFO L470 AbstractCegarLoop]: Abstraction has 138801 states and 178248 transitions. [2021-11-22 16:29:53,234 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) [2021-11-22 16:29:53,234 INFO L276 IsEmpty]: Start isEmpty. Operand 138801 states and 178248 transitions. [2021-11-22 16:29:53,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 16:29:53,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:29:53,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:29:53,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:29:53,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 33 more)] === [2021-11-22 16:29:53,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:29:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2111891599, now seen corresponding path program 1 times [2021-11-22 16:29:53,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:29:53,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219730632] [2021-11-22 16:29:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:29:53,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:29:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:29:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:29:53,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:29:53,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219730632] [2021-11-22 16:29:53,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219730632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:29:53,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:29:53,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:29:53,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958517493] [2021-11-22 16:29:53,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:29:53,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:29:53,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:29:53,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:29:53,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:29:53,493 INFO L87 Difference]: Start difference. First operand 138801 states and 178248 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:30:00,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:30:00,672 INFO L93 Difference]: Finished difference Result 416367 states and 534700 transitions. [2021-11-22 16:30:00,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:30:00,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2021-11-22 16:30:00,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:30:01,264 INFO L225 Difference]: With dead ends: 416367 [2021-11-22 16:30:01,265 INFO L226 Difference]: Without dead ends: 277569 [2021-11-22 16:30:01,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:30:01,516 INFO L933 BasicCegarLoop]: 142965 mSDtfsCounter, 142990 mSDsluCounter, 143257 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142990 SdHoareTripleChecker+Valid, 286222 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:30:01,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142990 Valid, 286222 Invalid, 20 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:30:01,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277569 states.