./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:07:47,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:07:47,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:07:47,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:07:47,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:07:47,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:07:47,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:07:47,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:07:47,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:07:47,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:07:47,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:07:47,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:07:47,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:07:47,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:07:47,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:07:47,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:07:47,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:07:47,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:07:47,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:07:47,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:07:47,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:07:47,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:07:47,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:07:47,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:07:47,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:07:47,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:07:47,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:07:47,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:07:47,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:07:47,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:07:47,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:07:47,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:07:47,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:07:47,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:07:47,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:07:47,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:07:47,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:07:47,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:07:47,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:07:47,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:07:47,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:07:47,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:07:48,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:07:48,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:07:48,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:07:48,009 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:07:48,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:07:48,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:07:48,017 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:07:48,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:07:48,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:07:48,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:07:48,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:07:48,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:07:48,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:07:48,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:07:48,020 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:07:48,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:07:48,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:07:48,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:07:48,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:07:48,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:07:48,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:07:48,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:07:48,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:07:48,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:07:48,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:07:48,025 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:07:48,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:07:48,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:07:48,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:07:48,027 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_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 [2021-11-22 15:07:48,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:07:48,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:07:48,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:07:48,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:07:48,454 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:07:48,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-22 15:07:48,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/data/28fa603a8/cdebbaa826064d6eacf6b68a900ac298/FLAGebeeb9489 [2021-11-22 15:07:49,992 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:07:49,994 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-22 15:07:50,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/data/28fa603a8/cdebbaa826064d6eacf6b68a900ac298/FLAGebeeb9489 [2021-11-22 15:07:50,437 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/data/28fa603a8/cdebbaa826064d6eacf6b68a900ac298 [2021-11-22 15:07:50,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:07:50,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:07:50,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:07:50,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:07:50,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:07:50,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:07:50" (1/1) ... [2021-11-22 15:07:50,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730b68f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:07:50, skipping insertion in model container [2021-11-22 15:07:50,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:07:50" (1/1) ... [2021-11-22 15:07:50,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:07:50,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:07:59,100 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_1698b559-450f-4959-a5e7-6b10c6238bbf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2021-11-22 15:07:59,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:07:59,375 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:08:01,363 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_1698b559-450f-4959-a5e7-6b10c6238bbf/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i[650907,650920] [2021-11-22 15:08:01,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:08:01,756 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:08:01,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01 WrapperNode [2021-11-22 15:08:01,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:08:01,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:08:01,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:08:01,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:08:01,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:02,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:05,273 INFO L137 Inliner]: procedures = 624, calls = 8799, calls flagged for inlining = 1849, calls inlined = 6425, statements flattened = 87808 [2021-11-22 15:08:05,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:08:05,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:08:05,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:08:05,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:08:05,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:05,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:06,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:06,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:08,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:08,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:08,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:09,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:08:09,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:08:09,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:08:09,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:08:09,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (1/1) ... [2021-11-22 15:08:09,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:08:09,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:08:09,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:08:09,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:08:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_shutdown [2021-11-22 15:08:09,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_shutdown [2021-11-22 15:08:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-22 15:08:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure _ipr_initiate_ioa_reset [2021-11-22 15:08:09,253 INFO L138 BoogieDeclarations]: Found implementation of procedure _ipr_initiate_ioa_reset [2021-11-22 15:08:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_page24_failed [2021-11-22 15:08:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_page24_failed [2021-11-22 15:08:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa [2021-11-22 15:08:09,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa [2021-11-22 15:08:09,254 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_dump [2021-11-22 15:08:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_dump [2021-11-22 15:08:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_all_resources [2021-11-22 15:08:09,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_all_resources [2021-11-22 15:08:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-22 15:08:09,255 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-22 15:08:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:08:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_failed [2021-11-22 15:08:09,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_failed [2021-11-22 15:08:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:08:09,256 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_done [2021-11-22 15:08:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_done [2021-11-22 15:08:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:08:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:08:09,257 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_remove [2021-11-22 15:08:09,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_remove [2021-11-22 15:08:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_dev_reset [2021-11-22 15:08:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_dev_reset [2021-11-22 15:08:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_abort [2021-11-22 15:08:09,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_abort [2021-11-22 15:08:09,258 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_mem [2021-11-22 15:08:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_mem [2021-11-22 15:08:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-22 15:08:09,259 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-22 15:08:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:08:09,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-22 15:08:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:08:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_bringdown [2021-11-22 15:08:09,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_bringdown [2021-11-22 15:08:09,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:08:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 15:08:09,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 15:08:09,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-22 15:08:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-22 15:08:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_restore_cfg_space [2021-11-22 15:08:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_restore_cfg_space [2021-11-22 15:08:09,262 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_request_sense [2021-11-22 15:08:09,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_request_sense [2021-11-22 15:08:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_timer_done [2021-11-22 15:08:09,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_timer_done [2021-11-22 15:08:09,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:08:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:08:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-22 15:08:09,264 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-22 15:08:09,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:08:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:08:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_bus_reset_done [2021-11-22 15:08:09,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_bus_reset_done [2021-11-22 15:08:09,265 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_start [2021-11-22 15:08:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_start [2021-11-22 15:08:09,267 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_queuecommand [2021-11-22 15:08:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_queuecommand [2021-11-22 15:08:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_eh_done [2021-11-22 15:08:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_eh_done [2021-11-22 15:08:09,268 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_worker_thread [2021-11-22 15:08:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_worker_thread [2021-11-22 15:08:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_fail_all_ops [2021-11-22 15:08:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_fail_all_ops [2021-11-22 15:08:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cancel_hcam_done [2021-11-22 15:08:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cancel_hcam_done [2021-11-22 15:08:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_53 [2021-11-22 15:08:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_53 [2021-11-22 15:08:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:08:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_done [2021-11-22 15:08:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_done [2021-11-22 15:08:09,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:08:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2021-11-22 15:08:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2021-11-22 15:08:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_reset_work [2021-11-22 15:08:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_reset_work [2021-11-22 15:08:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_ops [2021-11-22 15:08:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_ops [2021-11-22 15:08:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:08:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_cancel_all [2021-11-22 15:08:09,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_cancel_all [2021-11-22 15:08:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_52 [2021-11-22 15:08:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_52 [2021-11-22 15:08:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_41 [2021-11-22 15:08:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_41 [2021-11-22 15:08:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_remove [2021-11-22 15:08:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_remove [2021-11-22 15:08:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe [2021-11-22 15:08:09,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe [2021-11-22 15:08:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_reset [2021-11-22 15:08:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_reset [2021-11-22 15:08:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:08:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa_part2 [2021-11-22 15:08:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa_part2 [2021-11-22 15:08:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2021-11-22 15:08:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2021-11-22 15:08:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_host_reset [2021-11-22 15:08:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_host_reset [2021-11-22 15:08:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cmd_failed [2021-11-22 15:08:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cmd_failed [2021-11-22 15:08:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_lock_and_done [2021-11-22 15:08:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_lock_and_done [2021-11-22 15:08:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_error [2021-11-22 15:08:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_error [2021-11-22 15:08:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 15:08:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 15:08:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_ioa_job [2021-11-22 15:08:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_ioa_job [2021-11-22 15:08:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_timeout [2021-11-22 15:08:09,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_timeout [2021-11-22 15:08:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:08:09,283 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_oper_timeout [2021-11-22 15:08:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_oper_timeout [2021-11-22 15:08:13,331 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:08:13,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:09:47,118 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:09:47,211 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:09:47,211 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 15:09:47,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:09:47 BoogieIcfgContainer [2021-11-22 15:09:47,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:09:47,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:09:47,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:09:47,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:09:47,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:07:50" (1/3) ... [2021-11-22 15:09:47,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9a84fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:09:47, skipping insertion in model container [2021-11-22 15:09:47,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:08:01" (2/3) ... [2021-11-22 15:09:47,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9a84fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:09:47, skipping insertion in model container [2021-11-22 15:09:47,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:09:47" (3/3) ... [2021-11-22 15:09:47,239 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-22 15:09:47,246 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:09:47,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-22 15:09:47,368 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:09:47,377 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 15:09:47,377 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-22 15:09:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 13583 states, 13346 states have (on average 1.3424246965382887) internal successors, (17916), 13404 states have internal predecessors, (17916), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) [2021-11-22 15:09:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-22 15:09:47,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:09:47,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:09:47,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 15:09:47,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:09:47,726 INFO L85 PathProgramCache]: Analyzing trace with hash -560417995, now seen corresponding path program 1 times [2021-11-22 15:09:47,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:09:47,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254672080] [2021-11-22 15:09:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:09:47,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:09:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:09:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:09:49,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:09:49,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254672080] [2021-11-22 15:09:49,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254672080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:09:49,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:09:49,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 15:09:49,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705927866] [2021-11-22 15:09:49,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:09:49,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 15:09:49,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:09:49,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 15:09:49,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:09:49,656 INFO L87 Difference]: Start difference. First operand has 13583 states, 13346 states have (on average 1.3424246965382887) internal successors, (17916), 13404 states have internal predecessors, (17916), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) Second operand has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:09:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:09:50,588 INFO L93 Difference]: Finished difference Result 27149 states and 36689 transitions. [2021-11-22 15:09:50,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 15:09:50,591 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-11-22 15:09:50,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:09:50,759 INFO L225 Difference]: With dead ends: 27149 [2021-11-22 15:09:50,760 INFO L226 Difference]: Without dead ends: 13495 [2021-11-22 15:09:50,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 15:09:50,902 INFO L933 BasicCegarLoop]: 18133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18133 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:09:50,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:09:50,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13495 states. [2021-11-22 15:09:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13495 to 13495. [2021-11-22 15:09:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13259 states have (on average 1.330492495663323) internal successors, (17641), 13316 states have internal predecessors, (17641), 175 states have call successors, (175), 48 states have call predecessors, (175), 48 states have return successors, (175), 158 states have call predecessors, (175), 175 states have call successors, (175) [2021-11-22 15:09:51,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 17991 transitions. [2021-11-22 15:09:51,949 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 17991 transitions. Word has length 280 [2021-11-22 15:09:51,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:09:51,950 INFO L470 AbstractCegarLoop]: Abstraction has 13495 states and 17991 transitions. [2021-11-22 15:09:51,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:09:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 17991 transitions. [2021-11-22 15:09:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-22 15:09:51,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:09:51,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:09:51,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:09:51,965 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 15:09:51,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:09:51,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1540480391, now seen corresponding path program 1 times [2021-11-22 15:09:51,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:09:51,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507634293] [2021-11-22 15:09:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:09:51,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:09:52,859 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-22 15:09:52,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640352026] [2021-11-22 15:09:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:09:52,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:09:52,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:09:52,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 15:09:52,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 15:09:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:09:58,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 12642 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:09:58,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:09:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:09:59,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 15:09:59,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:09:59,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507634293] [2021-11-22 15:09:59,626 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-22 15:09:59,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640352026] [2021-11-22 15:09:59,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640352026] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:09:59,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:09:59,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:09:59,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178269570] [2021-11-22 15:09:59,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:09:59,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:09:59,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:09:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:09:59,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:09:59,635 INFO L87 Difference]: Start difference. First operand 13495 states and 17991 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:10:01,212 INFO L93 Difference]: Finished difference Result 39771 states and 53180 transitions. [2021-11-22 15:10:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:10:01,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-11-22 15:10:01,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:10:01,439 INFO L225 Difference]: With dead ends: 39771 [2021-11-22 15:10:01,439 INFO L226 Difference]: Without dead ends: 26537 [2021-11-22 15:10:01,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:01,517 INFO L933 BasicCegarLoop]: 18162 mSDtfsCounter, 17751 mSDsluCounter, 17703 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17751 SdHoareTripleChecker+Valid, 35865 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:10:01,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17751 Valid, 35865 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:10:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26537 states. [2021-11-22 15:10:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26537 to 26457. [2021-11-22 15:10:02,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26457 states, 25999 states have (on average 1.3347436439863072) internal successors, (34702), 26101 states have internal predecessors, (34702), 349 states have call successors, (349), 96 states have call predecessors, (349), 96 states have return successors, (349), 315 states have call predecessors, (349), 349 states have call successors, (349) [2021-11-22 15:10:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26457 states to 26457 states and 35400 transitions. [2021-11-22 15:10:02,810 INFO L78 Accepts]: Start accepts. Automaton has 26457 states and 35400 transitions. Word has length 280 [2021-11-22 15:10:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:10:02,817 INFO L470 AbstractCegarLoop]: Abstraction has 26457 states and 35400 transitions. [2021-11-22 15:10:02,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 26457 states and 35400 transitions. [2021-11-22 15:10:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-22 15:10:02,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:10:02,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:10:02,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:10:03,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1698b559-450f-4959-a5e7-6b10c6238bbf/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 15:10:03,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 15:10:03,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:10:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash -661917123, now seen corresponding path program 1 times [2021-11-22 15:10:03,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:10:03,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584839660] [2021-11-22 15:10:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:10:03,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:10:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:10:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:10:04,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:10:04,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584839660] [2021-11-22 15:10:04,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584839660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:10:04,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:10:04,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:10:04,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364665132] [2021-11-22 15:10:04,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:10:04,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:10:04,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:10:04,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:10:04,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:04,644 INFO L87 Difference]: Start difference. First operand 26457 states and 35400 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:10:06,839 INFO L93 Difference]: Finished difference Result 78508 states and 105180 transitions. [2021-11-22 15:10:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:10:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2021-11-22 15:10:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:10:07,181 INFO L225 Difference]: With dead ends: 78508 [2021-11-22 15:10:07,181 INFO L226 Difference]: Without dead ends: 52312 [2021-11-22 15:10:07,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:07,319 INFO L933 BasicCegarLoop]: 18406 mSDtfsCounter, 17697 mSDsluCounter, 17694 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17697 SdHoareTripleChecker+Valid, 36100 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:10:07,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17697 Valid, 36100 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:10:07,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52312 states. [2021-11-22 15:10:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52312 to 52292. [2021-11-22 15:10:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52292 states, 51395 states have (on average 1.3360443622920517) internal successors, (68666), 51587 states have internal predecessors, (68666), 692 states have call successors, (692), 192 states have call predecessors, (692), 192 states have return successors, (692), 624 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-22 15:10:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52292 states to 52292 states and 70050 transitions. [2021-11-22 15:10:09,854 INFO L78 Accepts]: Start accepts. Automaton has 52292 states and 70050 transitions. Word has length 296 [2021-11-22 15:10:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:10:09,855 INFO L470 AbstractCegarLoop]: Abstraction has 52292 states and 70050 transitions. [2021-11-22 15:10:09,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:09,856 INFO L276 IsEmpty]: Start isEmpty. Operand 52292 states and 70050 transitions. [2021-11-22 15:10:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-22 15:10:09,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:10:09,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:10:09,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:10:09,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 15:10:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:10:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash -27020696, now seen corresponding path program 1 times [2021-11-22 15:10:09,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:10:09,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694418462] [2021-11-22 15:10:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:10:09,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:10:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:10:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:10:11,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:10:11,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694418462] [2021-11-22 15:10:11,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694418462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:10:11,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:10:11,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:10:11,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992188110] [2021-11-22 15:10:11,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:10:11,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:10:11,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:10:11,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:10:11,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:11,508 INFO L87 Difference]: Start difference. First operand 52292 states and 70050 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:10:15,930 INFO L93 Difference]: Finished difference Result 155188 states and 209349 transitions. [2021-11-22 15:10:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:10:15,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2021-11-22 15:10:15,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:10:16,695 INFO L225 Difference]: With dead ends: 155188 [2021-11-22 15:10:16,695 INFO L226 Difference]: Without dead ends: 103157 [2021-11-22 15:10:16,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:16,930 INFO L933 BasicCegarLoop]: 18811 mSDtfsCounter, 17746 mSDsluCounter, 17822 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17746 SdHoareTripleChecker+Valid, 36633 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 15:10:16,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17746 Valid, 36633 Invalid, 57 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 15:10:17,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103157 states. [2021-11-22 15:10:21,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103157 to 103065. [2021-11-22 15:10:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103065 states, 101320 states have (on average 1.3366857481247532) internal successors, (135433), 101676 states have internal predecessors, (135433), 1348 states have call successors, (1348), 380 states have call predecessors, (1348), 384 states have return successors, (2696), 1232 states have call predecessors, (2696), 1348 states have call successors, (2696) [2021-11-22 15:10:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103065 states to 103065 states and 139477 transitions. [2021-11-22 15:10:22,910 INFO L78 Accepts]: Start accepts. Automaton has 103065 states and 139477 transitions. Word has length 303 [2021-11-22 15:10:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:10:22,911 INFO L470 AbstractCegarLoop]: Abstraction has 103065 states and 139477 transitions. [2021-11-22 15:10:22,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 103065 states and 139477 transitions. [2021-11-22 15:10:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-11-22 15:10:22,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:10:22,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:10:22,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:10:22,990 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ipr_worker_threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 15:10:22,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:10:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1394404682, now seen corresponding path program 1 times [2021-11-22 15:10:22,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:10:22,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860648506] [2021-11-22 15:10:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:10:22,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:10:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:10:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:10:24,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:10:24,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860648506] [2021-11-22 15:10:24,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860648506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:10:24,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:10:24,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:10:24,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333434463] [2021-11-22 15:10:24,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:10:24,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:10:24,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:10:24,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:10:24,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:24,151 INFO L87 Difference]: Start difference. First operand 103065 states and 139477 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:29,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:10:29,044 INFO L93 Difference]: Finished difference Result 205877 states and 281376 transitions. [2021-11-22 15:10:29,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 15:10:29,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355 [2021-11-22 15:10:29,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:10:29,997 INFO L225 Difference]: With dead ends: 205877 [2021-11-22 15:10:29,997 INFO L226 Difference]: Without dead ends: 103073 [2021-11-22 15:10:30,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:30,554 INFO L933 BasicCegarLoop]: 17986 mSDtfsCounter, 0 mSDsluCounter, 17979 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35965 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:10:30,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35965 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 15:10:30,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103073 states. [2021-11-22 15:10:33,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103073 to 103065. [2021-11-22 15:10:34,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103065 states, 101320 states have (on average 1.3364488748519543) internal successors, (135409), 101676 states have internal predecessors, (135409), 1348 states have call successors, (1348), 380 states have call predecessors, (1348), 384 states have return successors, (2696), 1232 states have call predecessors, (2696), 1348 states have call successors, (2696) [2021-11-22 15:10:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103065 states to 103065 states and 139453 transitions. [2021-11-22 15:10:34,884 INFO L78 Accepts]: Start accepts. Automaton has 103065 states and 139453 transitions. Word has length 355 [2021-11-22 15:10:34,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:10:34,886 INFO L470 AbstractCegarLoop]: Abstraction has 103065 states and 139453 transitions. [2021-11-22 15:10:34,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:10:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 103065 states and 139453 transitions. [2021-11-22 15:10:34,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-11-22 15:10:34,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:10:34,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 15:10:34,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 15:10:34,969 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ipr_worker_threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr0ASSERT_VIOLATIONERROR_FUNCTION, ipr_probe_ioaErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-22 15:10:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:10:34,971 INFO L85 PathProgramCache]: Analyzing trace with hash -193773199, now seen corresponding path program 1 times [2021-11-22 15:10:34,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:10:34,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491101569] [2021-11-22 15:10:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:10:34,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:10:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:10:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:10:36,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:10:36,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491101569] [2021-11-22 15:10:36,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491101569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:10:36,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:10:36,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:10:36,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322205044] [2021-11-22 15:10:36,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:10:36,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 15:10:36,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:10:36,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 15:10:36,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 15:10:36,107 INFO L87 Difference]: Start difference. First operand 103065 states and 139453 transitions. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)