./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:07:14,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:07:14,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:07:14,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:07:14,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:07:14,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:07:14,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:07:14,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:07:14,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:07:14,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:07:14,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:07:14,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:07:14,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:07:14,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:07:14,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:07:14,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:07:14,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:07:14,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:07:14,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:07:14,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:07:14,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:07:14,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:07:14,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:07:14,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:07:14,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:07:14,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:07:14,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:07:14,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:07:14,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:07:14,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:07:14,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:07:14,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:07:14,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:07:14,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:07:14,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:07:14,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:07:14,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:07:14,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:07:14,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:07:14,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:07:15,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:07:15,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:07:15,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:07:15,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:07:15,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:07:15,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:07:15,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:07:15,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:07:15,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:07:15,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:07:15,042 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:07:15,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:07:15,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:07:15,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:07:15,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:07:15,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:07:15,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:07:15,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:07:15,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:07:15,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:07:15,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:07:15,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:07:15,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:07:15,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:07:15,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:07:15,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:07:15,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:07:15,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:07:15,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:07:15,047 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:07:15,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:07:15,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:07:15,048 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_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 [2022-10-17 11:07:15,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:07:15,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:07:15,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:07:15,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:07:15,312 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:07:15,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2022-10-17 11:07:15,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/data/3b1c1038c/6a7b2bf6032a446e99830e4b3763c1c8/FLAG2a1dbb080 [2022-10-17 11:07:16,312 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:07:16,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2022-10-17 11:07:16,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/data/3b1c1038c/6a7b2bf6032a446e99830e4b3763c1c8/FLAG2a1dbb080 [2022-10-17 11:07:16,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/data/3b1c1038c/6a7b2bf6032a446e99830e4b3763c1c8 [2022-10-17 11:07:16,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:07:16,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:07:16,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:07:16,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:07:16,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:07:16,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:07:16" (1/1) ... [2022-10-17 11:07:16,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e42bd1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:16, skipping insertion in model container [2022-10-17 11:07:16,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:07:16" (1/1) ... [2022-10-17 11:07:16,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:07:16,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:07:18,505 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_87a3e4f0-7ecb-4e35-a368-abf7a4010590/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i[223543,223556] [2022-10-17 11:07:18,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:07:18,631 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:07:19,010 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_87a3e4f0-7ecb-4e35-a368-abf7a4010590/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i[223543,223556] [2022-10-17 11:07:19,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:07:19,111 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:07:19,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19 WrapperNode [2022-10-17 11:07:19,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:07:19,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:07:19,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:07:19,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:07:19,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,396 INFO L138 Inliner]: procedures = 167, calls = 1419, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 4370 [2022-10-17 11:07:19,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:07:19,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:07:19,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:07:19,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:07:19,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,561 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:07:19,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:07:19,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:07:19,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:07:19,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (1/1) ... [2022-10-17 11:07:19,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:07:19,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:07:19,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:07:19,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:07:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-17 11:07:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-17 11:07:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_exit [2022-10-17 11:07:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_exit [2022-10-17 11:07:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 11:07:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 11:07:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-17 11:07:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2022-10-17 11:07:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 11:07:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 11:07:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_writememory [2022-10-17 11:07:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_writememory [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 11:07:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:07:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure firm_send_command [2022-10-17 11:07:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_send_command [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 11:07:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:07:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2022-10-17 11:07:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2022-10-17 11:07:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:07:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 11:07:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 11:07:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-17 11:07:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-17 11:07:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-10-17 11:07:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-10-17 11:07:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-17 11:07:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-17 11:07:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 11:07:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 11:07:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure request_ihex_firmware [2022-10-17 11:07:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure request_ihex_firmware [2022-10-17 11:07:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2022-10-17 11:07:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2022-10-17 11:07:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_attach [2022-10-17 11:07:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_attach [2022-10-17 11:07:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:07:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-10-17 11:07:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-10-17 11:07:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 11:07:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 11:07:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 11:07:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 11:07:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:07:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:07:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:07:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 11:07:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 11:07:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 11:07:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2022-10-17 11:07:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2022-10-17 11:07:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 11:07:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 11:07:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_set_reset [2022-10-17 11:07:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_set_reset [2022-10-17 11:07:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure urb_to_wrap [2022-10-17 11:07:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_to_wrap [2022-10-17 11:07:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:07:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 11:07:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 11:07:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure firm_setup_port [2022-10-17 11:07:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_setup_port [2022-10-17 11:07:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 11:07:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 11:07:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 11:07:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 11:07:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure list_first [2022-10-17 11:07:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure list_first [2022-10-17 11:07:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-17 11:07:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-17 11:07:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:07:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:07:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure firm_close [2022-10-17 11:07:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_close [2022-10-17 11:07:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 11:07:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 11:07:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2022-10-17 11:07:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2022-10-17 11:07:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2022-10-17 11:07:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2022-10-17 11:07:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 11:07:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 11:07:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 11:07:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 11:07:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure stop_command_port [2022-10-17 11:07:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_command_port [2022-10-17 11:07:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 11:07:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 11:07:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 11:07:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 11:07:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 11:07:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 11:07:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 11:07:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 11:07:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-10-17 11:07:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-10-17 11:07:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 11:07:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 11:07:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-17 11:07:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-17 11:07:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:07:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-10-17 11:07:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-10-17 11:07:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-17 11:07:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-17 11:07:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 11:07:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:07:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:07:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_init [2022-10-17 11:07:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_init [2022-10-17 11:07:20,498 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:07:20,502 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:07:20,883 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:21,053 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2022-10-17 11:07:21,053 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2022-10-17 11:07:21,068 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:21,182 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2022-10-17 11:07:21,183 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2022-10-17 11:07:21,267 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-10-17 11:07:21,638 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:21,690 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:07:23,581 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##395: assume !false; [2022-10-17 11:07:23,581 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume false; [2022-10-17 11:07:23,581 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !false; [2022-10-17 11:07:23,581 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume false; [2022-10-17 11:07:23,711 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:07:23,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:07:23,742 INFO L300 CfgBuilder]: Removed 94 assume(true) statements. [2022-10-17 11:07:23,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:23 BoogieIcfgContainer [2022-10-17 11:07:23,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:07:23,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:07:23,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:07:23,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:07:23,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:07:16" (1/3) ... [2022-10-17 11:07:23,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dce09a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:07:23, skipping insertion in model container [2022-10-17 11:07:23,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:19" (2/3) ... [2022-10-17 11:07:23,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dce09a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:07:23, skipping insertion in model container [2022-10-17 11:07:23,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:23" (3/3) ... [2022-10-17 11:07:23,758 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2022-10-17 11:07:23,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:07:23,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:07:23,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:07:23,911 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@eeaeb27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:07:23,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:07:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 1116 states, 806 states have (on average 1.4851116625310175) internal successors, (1197), 831 states have internal predecessors, (1197), 257 states have call successors, (257), 52 states have call predecessors, (257), 51 states have return successors, (256), 253 states have call predecessors, (256), 256 states have call successors, (256) [2022-10-17 11:07:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 11:07:23,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:23,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:23,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:23,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1733713321, now seen corresponding path program 1 times [2022-10-17 11:07:23,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:23,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926776740] [2022-10-17 11:07:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:23,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:24,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:07:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:24,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:24,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:24,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926776740] [2022-10-17 11:07:24,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926776740] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:24,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:24,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:24,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382774754] [2022-10-17 11:07:24,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:24,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:24,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:24,909 INFO L87 Difference]: Start difference. First operand has 1116 states, 806 states have (on average 1.4851116625310175) internal successors, (1197), 831 states have internal predecessors, (1197), 257 states have call successors, (257), 52 states have call predecessors, (257), 51 states have return successors, (256), 253 states have call predecessors, (256), 256 states have call successors, (256) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:07:25,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:25,302 INFO L93 Difference]: Finished difference Result 3284 states and 5136 transitions. [2022-10-17 11:07:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-10-17 11:07:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:25,361 INFO L225 Difference]: With dead ends: 3284 [2022-10-17 11:07:25,361 INFO L226 Difference]: Without dead ends: 2184 [2022-10-17 11:07:25,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:25,381 INFO L413 NwaCegarLoop]: 1784 mSDtfsCounter, 1491 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:25,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 3248 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2022-10-17 11:07:25,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2181. [2022-10-17 11:07:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1578 states have (on average 1.2344740177439797) internal successors, (1948), 1613 states have internal predecessors, (1948), 504 states have call successors, (504), 99 states have call predecessors, (504), 98 states have return successors, (505), 495 states have call predecessors, (505), 501 states have call successors, (505) [2022-10-17 11:07:25,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2957 transitions. [2022-10-17 11:07:25,634 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2957 transitions. Word has length 20 [2022-10-17 11:07:25,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:25,635 INFO L495 AbstractCegarLoop]: Abstraction has 2181 states and 2957 transitions. [2022-10-17 11:07:25,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:07:25,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2957 transitions. [2022-10-17 11:07:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 11:07:25,637 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:25,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:25,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:07:25,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2088976397, now seen corresponding path program 1 times [2022-10-17 11:07:25,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:25,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468680758] [2022-10-17 11:07:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:25,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:07:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:25,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:26,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:26,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468680758] [2022-10-17 11:07:26,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468680758] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:26,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:26,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:26,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310296810] [2022-10-17 11:07:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:26,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:26,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:26,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:26,006 INFO L87 Difference]: Start difference. First operand 2181 states and 2957 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:07:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:26,202 INFO L93 Difference]: Finished difference Result 2183 states and 2958 transitions. [2022-10-17 11:07:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:26,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-10-17 11:07:26,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:26,221 INFO L225 Difference]: With dead ends: 2183 [2022-10-17 11:07:26,221 INFO L226 Difference]: Without dead ends: 2170 [2022-10-17 11:07:26,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:26,225 INFO L413 NwaCegarLoop]: 1494 mSDtfsCounter, 1486 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:26,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2022-10-17 11:07:26,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2170. [2022-10-17 11:07:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2170 states, 1572 states have (on average 1.2321882951653944) internal successors, (1937), 1605 states have internal predecessors, (1937), 500 states have call successors, (500), 98 states have call predecessors, (500), 97 states have return successors, (502), 492 states have call predecessors, (502), 498 states have call successors, (502) [2022-10-17 11:07:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2939 transitions. [2022-10-17 11:07:26,396 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2939 transitions. Word has length 21 [2022-10-17 11:07:26,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:26,397 INFO L495 AbstractCegarLoop]: Abstraction has 2170 states and 2939 transitions. [2022-10-17 11:07:26,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 11:07:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2939 transitions. [2022-10-17 11:07:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-17 11:07:26,411 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:26,412 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-10-17 11:07:26,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:07:26,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:26,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1759710556, now seen corresponding path program 1 times [2022-10-17 11:07:26,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:26,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086279370] [2022-10-17 11:07:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:26,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:07:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 11:07:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:07:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 11:07:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 11:07:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 11:07:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:07:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-17 11:07:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 11:07:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 11:07:27,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:27,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086279370] [2022-10-17 11:07:27,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086279370] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:27,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:27,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:07:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316867349] [2022-10-17 11:07:27,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:27,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:07:27,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:27,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:07:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:07:27,094 INFO L87 Difference]: Start difference. First operand 2170 states and 2939 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 11:07:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:30,193 INFO L93 Difference]: Finished difference Result 5179 states and 7134 transitions. [2022-10-17 11:07:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:07:30,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-10-17 11:07:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:30,223 INFO L225 Difference]: With dead ends: 5179 [2022-10-17 11:07:30,223 INFO L226 Difference]: Without dead ends: 3035 [2022-10-17 11:07:30,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:07:30,236 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 770 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:30,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 4547 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-17 11:07:30,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3035 states. [2022-10-17 11:07:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3035 to 2982. [2022-10-17 11:07:30,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2177 states have (on average 1.2406982085438678) internal successors, (2701), 2225 states have internal predecessors, (2701), 704 states have call successors, (704), 98 states have call predecessors, (704), 100 states have return successors, (715), 692 states have call predecessors, (715), 702 states have call successors, (715) [2022-10-17 11:07:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 4120 transitions. [2022-10-17 11:07:30,561 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 4120 transitions. Word has length 105 [2022-10-17 11:07:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:30,562 INFO L495 AbstractCegarLoop]: Abstraction has 2982 states and 4120 transitions. [2022-10-17 11:07:30,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 11:07:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 4120 transitions. [2022-10-17 11:07:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-10-17 11:07:30,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:30,577 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-10-17 11:07:30,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 11:07:30,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:30,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:30,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1673733388, now seen corresponding path program 1 times [2022-10-17 11:07:30,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:30,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371665886] [2022-10-17 11:07:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:30,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:07:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-17 11:07:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 11:07:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-17 11:07:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 11:07:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 11:07:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-17 11:07:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 11:07:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-17 11:07:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-17 11:07:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 11:07:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 11:07:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-17 11:07:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-17 11:07:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-17 11:07:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-17 11:07:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-10-17 11:07:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-10-17 11:07:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-17 11:07:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:31,611 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-17 11:07:31,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:31,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371665886] [2022-10-17 11:07:31,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371665886] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:31,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:31,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 11:07:31,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575624175] [2022-10-17 11:07:31,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:31,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 11:07:31,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:31,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 11:07:31,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 11:07:31,621 INFO L87 Difference]: Start difference. First operand 2982 states and 4120 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-10-17 11:07:36,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:36,458 INFO L93 Difference]: Finished difference Result 11537 states and 16398 transitions. [2022-10-17 11:07:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:07:36,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 191 [2022-10-17 11:07:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:36,562 INFO L225 Difference]: With dead ends: 11537 [2022-10-17 11:07:36,562 INFO L226 Difference]: Without dead ends: 8582 [2022-10-17 11:07:36,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-17 11:07:36,596 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 1922 mSDsluCounter, 9980 mSDsCounter, 0 mSdLazyCounter, 2829 mSolverCounterSat, 1060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 13487 SdHoareTripleChecker+Invalid, 3889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1060 IncrementalHoareTripleChecker+Valid, 2829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:36,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 13487 Invalid, 3889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1060 Valid, 2829 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-10-17 11:07:36,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8582 states. [2022-10-17 11:07:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8582 to 2990. [2022-10-17 11:07:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2183 states have (on average 1.2400366468163078) internal successors, (2707), 2231 states have internal predecessors, (2707), 706 states have call successors, (706), 98 states have call predecessors, (706), 100 states have return successors, (717), 694 states have call predecessors, (717), 704 states have call successors, (717) [2022-10-17 11:07:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 4130 transitions. [2022-10-17 11:07:37,146 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 4130 transitions. Word has length 191 [2022-10-17 11:07:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:37,147 INFO L495 AbstractCegarLoop]: Abstraction has 2990 states and 4130 transitions. [2022-10-17 11:07:37,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-10-17 11:07:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 4130 transitions. [2022-10-17 11:07:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-17 11:07:37,160 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:37,161 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-17 11:07:37,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 11:07:37,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:37,163 INFO L85 PathProgramCache]: Analyzing trace with hash -86142210, now seen corresponding path program 1 times [2022-10-17 11:07:37,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:37,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680133173] [2022-10-17 11:07:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:07:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-17 11:07:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 11:07:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-17 11:07:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-17 11:07:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-17 11:07:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 11:07:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 11:07:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 11:07:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 11:07:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 11:07:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-17 11:07:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 11:07:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:39,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-17 11:07:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-17 11:07:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 11:07:39,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:39,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680133173] [2022-10-17 11:07:39,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680133173] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:07:39,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548635558] [2022-10-17 11:07:39,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:39,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:07:39,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:07:39,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:07:39,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 11:07:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:40,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 3257 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 11:07:40,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:07:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-17 11:07:40,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:07:40,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548635558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:40,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 11:07:40,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-10-17 11:07:40,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604226331] [2022-10-17 11:07:40,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:40,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:07:40,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:40,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:07:40,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-10-17 11:07:40,158 INFO L87 Difference]: Start difference. First operand 2990 states and 4130 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-17 11:07:40,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:40,495 INFO L93 Difference]: Finished difference Result 5957 states and 8232 transitions. [2022-10-17 11:07:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 11:07:40,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-10-17 11:07:40,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:40,519 INFO L225 Difference]: With dead ends: 5957 [2022-10-17 11:07:40,520 INFO L226 Difference]: Without dead ends: 2984 [2022-10-17 11:07:40,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-10-17 11:07:40,537 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 2 mSDsluCounter, 5943 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7433 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:40,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7433 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:40,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-10-17 11:07:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2984. [2022-10-17 11:07:40,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2180 states have (on average 1.2389908256880735) internal successors, (2701), 2226 states have internal predecessors, (2701), 704 states have call successors, (704), 97 states have call predecessors, (704), 99 states have return successors, (715), 692 states have call predecessors, (715), 702 states have call successors, (715) [2022-10-17 11:07:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 4120 transitions. [2022-10-17 11:07:40,874 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 4120 transitions. Word has length 147 [2022-10-17 11:07:40,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:40,875 INFO L495 AbstractCegarLoop]: Abstraction has 2984 states and 4120 transitions. [2022-10-17 11:07:40,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-17 11:07:40,875 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 4120 transitions. [2022-10-17 11:07:40,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-17 11:07:40,884 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:40,884 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-10-17 11:07:40,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-17 11:07:41,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:07:41,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:41,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1393563028, now seen corresponding path program 1 times [2022-10-17 11:07:41,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:41,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083025812] [2022-10-17 11:07:41,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:41,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:07:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 11:07:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 11:07:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 11:07:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-17 11:07:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 11:07:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 11:07:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 11:07:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 11:07:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-17 11:07:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-17 11:07:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:07:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-17 11:07:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-17 11:07:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-17 11:07:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 11:07:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-17 11:07:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-17 11:07:42,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:42,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083025812] [2022-10-17 11:07:42,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083025812] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:07:42,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538172869] [2022-10-17 11:07:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:42,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:07:42,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:07:42,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:07:42,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87a3e4f0-7ecb-4e35-a368-abf7a4010590/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process