./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 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/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_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY --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-47ea020 [2021-11-07 08:38:03,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:38:03,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:38:03,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:38:03,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:38:03,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:38:03,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:38:03,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:38:03,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:38:03,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:38:03,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:38:03,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:38:03,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:38:03,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:38:03,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:38:03,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:38:03,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:38:03,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:38:03,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:38:03,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:38:03,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:38:03,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:38:03,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:38:03,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:38:03,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:38:03,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:38:03,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:38:03,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:38:03,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:38:03,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:38:03,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:38:03,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:38:03,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:38:03,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:38:03,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:38:03,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:38:03,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:38:03,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:38:03,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:38:03,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:38:03,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:38:03,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:38:03,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:38:03,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:38:03,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:38:03,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:38:03,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:38:03,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:38:03,851 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:38:03,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:38:03,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:38:03,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:38:03,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:38:03,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:38:03,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:38:03,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:38:03,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:38:03,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:38:03,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:38:03,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:38:03,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:38:03,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:38:03,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:38:03,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:38:03,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:38:03,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:38:03,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:38:03,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:38:03,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:38:03,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:38:03,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:38:03,859 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_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 [2021-11-07 08:38:04,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:38:04,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:38:04,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:38:04,215 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:38:04,216 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:38:04,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/../../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 [2021-11-07 08:38:04,298 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/data/d2b423d7e/889942c3213c43518dc4af8ff35817ce/FLAGaf06aaaef [2021-11-07 08:38:05,806 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:38:05,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/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 [2021-11-07 08:38:05,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/data/d2b423d7e/889942c3213c43518dc4af8ff35817ce/FLAGaf06aaaef [2021-11-07 08:38:06,313 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/data/d2b423d7e/889942c3213c43518dc4af8ff35817ce [2021-11-07 08:38:06,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:38:06,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:38:06,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:06,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:38:06,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:38:06,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:06" (1/1) ... [2021-11-07 08:38:06,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88eee07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:06, skipping insertion in model container [2021-11-07 08:38:06,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:06" (1/1) ... [2021-11-07 08:38:06,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:38:06,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:38:14,526 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/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] [2021-11-07 08:38:14,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:14,705 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:38:16,272 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/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] [2021-11-07 08:38:16,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:16,698 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:38:16,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16 WrapperNode [2021-11-07 08:38:16,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:16,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:16,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:38:16,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:38:16,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:16,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:19,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:19,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:38:19,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:38:19,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:38:19,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:19,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:20,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:20,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:22,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:22,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:22,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:23,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:38:23,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:38:23,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:38:23,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:38:23,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (1/1) ... [2021-11-07 08:38:23,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:38:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:23,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:23,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:38:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_shutdown [2021-11-07 08:38:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_shutdown [2021-11-07 08:38:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 08:38:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure _ipr_initiate_ioa_reset [2021-11-07 08:38:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure _ipr_initiate_ioa_reset [2021-11-07 08:38:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_page24_failed [2021-11-07 08:38:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_page24_failed [2021-11-07 08:38:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa [2021-11-07 08:38:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa [2021-11-07 08:38:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_dump [2021-11-07 08:38:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_dump [2021-11-07 08:38:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_all_resources [2021-11-07 08:38:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_all_resources [2021-11-07 08:38:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 08:38:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 08:38:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:38:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_failed [2021-11-07 08:38:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_failed [2021-11-07 08:38:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 08:38:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_done [2021-11-07 08:38:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_done [2021-11-07 08:38:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 08:38:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:38:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_remove [2021-11-07 08:38:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_remove [2021-11-07 08:38:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_dev_reset [2021-11-07 08:38:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_dev_reset [2021-11-07 08:38:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_abort [2021-11-07 08:38:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_abort [2021-11-07 08:38:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_mem [2021-11-07 08:38:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_mem [2021-11-07 08:38:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 08:38:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 08:38:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:38:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-07 08:38:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_bringdown [2021-11-07 08:38:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_bringdown [2021-11-07 08:38:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:38:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 08:38:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 08:38:23,240 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 08:38:23,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 08:38:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_restore_cfg_space [2021-11-07 08:38:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_restore_cfg_space [2021-11-07 08:38:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_request_sense [2021-11-07 08:38:23,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_request_sense [2021-11-07 08:38:23,241 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_timer_done [2021-11-07 08:38:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_timer_done [2021-11-07 08:38:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:38:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:38:23,242 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 08:38:23,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 08:38:23,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 08:38:23,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 08:38:23,243 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_bus_reset_done [2021-11-07 08:38:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_bus_reset_done [2021-11-07 08:38:23,243 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_start [2021-11-07 08:38:23,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_start [2021-11-07 08:38:23,244 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_queuecommand [2021-11-07 08:38:23,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_queuecommand [2021-11-07 08:38:23,245 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_eh_done [2021-11-07 08:38:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_eh_done [2021-11-07 08:38:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_worker_thread [2021-11-07 08:38:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_worker_thread [2021-11-07 08:38:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_fail_all_ops [2021-11-07 08:38:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_fail_all_ops [2021-11-07 08:38:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cancel_hcam_done [2021-11-07 08:38:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cancel_hcam_done [2021-11-07 08:38:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_53 [2021-11-07 08:38:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_53 [2021-11-07 08:38:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:38:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_done [2021-11-07 08:38:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_done [2021-11-07 08:38:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:38:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2021-11-07 08:38:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2021-11-07 08:38:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_reset_work [2021-11-07 08:38:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_reset_work [2021-11-07 08:38:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_ops [2021-11-07 08:38:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_ops [2021-11-07 08:38:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:38:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_cancel_all [2021-11-07 08:38:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_cancel_all [2021-11-07 08:38:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_52 [2021-11-07 08:38:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_52 [2021-11-07 08:38:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_41 [2021-11-07 08:38:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_41 [2021-11-07 08:38:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_remove [2021-11-07 08:38:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_remove [2021-11-07 08:38:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe [2021-11-07 08:38:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe [2021-11-07 08:38:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_reset [2021-11-07 08:38:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_reset [2021-11-07 08:38:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:38:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa_part2 [2021-11-07 08:38:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa_part2 [2021-11-07 08:38:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2021-11-07 08:38:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2021-11-07 08:38:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_host_reset [2021-11-07 08:38:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_host_reset [2021-11-07 08:38:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cmd_failed [2021-11-07 08:38:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cmd_failed [2021-11-07 08:38:23,254 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_lock_and_done [2021-11-07 08:38:23,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_lock_and_done [2021-11-07 08:38:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_error [2021-11-07 08:38:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_error [2021-11-07 08:38:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 08:38:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 08:38:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_ioa_job [2021-11-07 08:38:23,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_ioa_job [2021-11-07 08:38:23,255 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_timeout [2021-11-07 08:38:23,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_timeout [2021-11-07 08:38:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:38:23,256 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_oper_timeout [2021-11-07 08:38:23,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_oper_timeout [2021-11-07 08:43:42,376 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:43:42,377 INFO L299 CfgBuilder]: Removed 12843 assume(true) statements. [2021-11-07 08:43:42,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:42 BoogieIcfgContainer [2021-11-07 08:43:42,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:43:42,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:43:42,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:43:42,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:43:42,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:38:06" (1/3) ... [2021-11-07 08:43:42,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222cd06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:43:42, skipping insertion in model container [2021-11-07 08:43:42,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:16" (2/3) ... [2021-11-07 08:43:42,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222cd06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:43:42, skipping insertion in model container [2021-11-07 08:43:42,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:43:42" (3/3) ... [2021-11-07 08:43:42,399 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--ipr.ko-entry_point.cil.out.i [2021-11-07 08:43:42,406 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:43:42,406 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 08:43:42,510 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:43:42,517 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 [2021-11-07 08:43:42,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 08:43:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 12659 states, 12422 states have (on average 1.3678956689744002) internal successors, (16992), 12492 states have internal predecessors, (16992), 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) [2021-11-07 08:43:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-07 08:43:42,778 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:43:42,779 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:43:42,779 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)] === [2021-11-07 08:43:42,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:42,786 INFO L85 PathProgramCache]: Analyzing trace with hash -497443597, now seen corresponding path program 1 times [2021-11-07 08:43:42,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:42,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809590529] [2021-11-07 08:43:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:42,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:43:45,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:43:45,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809590529] [2021-11-07 08:43:45,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809590529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:43:45,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:43:45,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:43:45,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852582644] [2021-11-07 08:43:45,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:43:45,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:43:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:43:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:43:45,493 INFO L87 Difference]: Start difference. First operand has 12659 states, 12422 states have (on average 1.3678956689744002) internal successors, (16992), 12492 states have internal predecessors, (16992), 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) [2021-11-07 08:43:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:43:46,157 INFO L93 Difference]: Finished difference Result 25314 states and 34854 transitions. [2021-11-07 08:43:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:43:46,160 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 [2021-11-07 08:43:46,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:43:46,300 INFO L225 Difference]: With dead ends: 25314 [2021-11-07 08:43:46,301 INFO L226 Difference]: Without dead ends: 12586 [2021-11-07 08:43:46,404 INFO L786 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 [2021-11-07 08:43:46,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12586 states. [2021-11-07 08:43:46,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12586 to 12586. [2021-11-07 08:43:46,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12586 states, 12350 states have (on average 1.3548178137651823) internal successors, (16732), 12419 states have internal predecessors, (16732), 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) [2021-11-07 08:43:46,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12586 states to 12586 states and 17082 transitions. [2021-11-07 08:43:46,983 INFO L78 Accepts]: Start accepts. Automaton has 12586 states and 17082 transitions. Word has length 280 [2021-11-07 08:43:46,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:43:46,984 INFO L470 AbstractCegarLoop]: Abstraction has 12586 states and 17082 transitions. [2021-11-07 08:43:46,985 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) [2021-11-07 08:43:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 12586 states and 17082 transitions. [2021-11-07 08:43:46,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-07 08:43:46,993 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:43:46,993 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:43:46,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:43:46,994 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)] === [2021-11-07 08:43:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:43:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1603454789, now seen corresponding path program 1 times [2021-11-07 08:43:46,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:43:46,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130314772] [2021-11-07 08:43:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:46,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:43:48,384 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 08:43:48,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779150769] [2021-11-07 08:43:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:43:48,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:43:48,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:43:48,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:43:48,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 08:43:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:43:59,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 14123 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:43:59,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:43:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:43:59,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:43:59,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130314772] [2021-11-07 08:43:59,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 08:43:59,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779150769] [2021-11-07 08:43:59,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779150769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:43:59,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:43:59,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:43:59,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523655705] [2021-11-07 08:43:59,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:43:59,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:43:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:43:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:43:59,971 INFO L87 Difference]: Start difference. First operand 12586 states and 17082 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) [2021-11-07 08:44:01,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:01,250 INFO L93 Difference]: Finished difference Result 37062 states and 50471 transitions. [2021-11-07 08:44:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:01,251 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 [2021-11-07 08:44:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:01,449 INFO L225 Difference]: With dead ends: 37062 [2021-11-07 08:44:01,449 INFO L226 Difference]: Without dead ends: 24737 [2021-11-07 08:44:01,518 INFO L786 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 [2021-11-07 08:44:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24737 states. [2021-11-07 08:44:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24737 to 24657. [2021-11-07 08:44:02,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24657 states, 24199 states have (on average 1.3596429604529112) internal successors, (32902), 24325 states have internal predecessors, (32902), 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) [2021-11-07 08:44:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24657 states to 24657 states and 33600 transitions. [2021-11-07 08:44:02,401 INFO L78 Accepts]: Start accepts. Automaton has 24657 states and 33600 transitions. Word has length 280 [2021-11-07 08:44:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:02,408 INFO L470 AbstractCegarLoop]: Abstraction has 24657 states and 33600 transitions. [2021-11-07 08:44:02,409 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) [2021-11-07 08:44:02,409 INFO L276 IsEmpty]: Start isEmpty. Operand 24657 states and 33600 transitions. [2021-11-07 08:44:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-07 08:44:02,421 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:02,422 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:02,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 08:44:02,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10fb9228-5275-445c-a74c-b294a4a24ee3/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:44:02,638 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)] === [2021-11-07 08:44:02,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1381731114, now seen corresponding path program 1 times [2021-11-07 08:44:02,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:02,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958771995] [2021-11-07 08:44:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:02,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:05,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:05,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958771995] [2021-11-07 08:44:05,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958771995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:05,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:05,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:05,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679138306] [2021-11-07 08:44:05,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:05,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:05,411 INFO L87 Difference]: Start difference. First operand 24657 states and 33600 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) [2021-11-07 08:44:07,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:07,689 INFO L93 Difference]: Finished difference Result 73129 states and 99801 transitions. [2021-11-07 08:44:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:07,690 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 [2021-11-07 08:44:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:07,930 INFO L225 Difference]: With dead ends: 73129 [2021-11-07 08:44:07,930 INFO L226 Difference]: Without dead ends: 48733 [2021-11-07 08:44:08,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48733 states. [2021-11-07 08:44:09,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48733 to 48713. [2021-11-07 08:44:09,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48713 states, 47816 states have (on average 1.3611970888405556) internal successors, (65087), 48056 states have internal predecessors, (65087), 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) [2021-11-07 08:44:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48713 states to 48713 states and 66471 transitions. [2021-11-07 08:44:09,952 INFO L78 Accepts]: Start accepts. Automaton has 48713 states and 66471 transitions. Word has length 296 [2021-11-07 08:44:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:09,953 INFO L470 AbstractCegarLoop]: Abstraction has 48713 states and 66471 transitions. [2021-11-07 08:44:09,953 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) [2021-11-07 08:44:09,953 INFO L276 IsEmpty]: Start isEmpty. Operand 48713 states and 66471 transitions. [2021-11-07 08:44:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-07 08:44:09,966 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:09,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:09,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:44:09,967 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)] === [2021-11-07 08:44:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:09,968 INFO L85 PathProgramCache]: Analyzing trace with hash -420074503, now seen corresponding path program 1 times [2021-11-07 08:44:09,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:09,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013658252] [2021-11-07 08:44:09,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:09,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:12,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:12,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013658252] [2021-11-07 08:44:12,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013658252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:12,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:12,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:12,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862937215] [2021-11-07 08:44:12,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:12,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:12,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:12,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:12,325 INFO L87 Difference]: Start difference. First operand 48713 states and 66471 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-11-07 08:44:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:44:16,199 INFO L93 Difference]: Finished difference Result 144555 states and 198716 transitions. [2021-11-07 08:44:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:44:16,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 301 [2021-11-07 08:44:16,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:44:17,097 INFO L225 Difference]: With dead ends: 144555 [2021-11-07 08:44:17,097 INFO L226 Difference]: Without dead ends: 96103 [2021-11-07 08:44:17,295 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:17,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96103 states. [2021-11-07 08:44:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96103 to 96011. [2021-11-07 08:44:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96011 states, 94266 states have (on average 1.3618802113169117) internal successors, (128379), 94718 states have internal predecessors, (128379), 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) [2021-11-07 08:44:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96011 states to 96011 states and 132423 transitions. [2021-11-07 08:44:21,525 INFO L78 Accepts]: Start accepts. Automaton has 96011 states and 132423 transitions. Word has length 301 [2021-11-07 08:44:21,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:44:21,527 INFO L470 AbstractCegarLoop]: Abstraction has 96011 states and 132423 transitions. [2021-11-07 08:44:21,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2021-11-07 08:44:21,527 INFO L276 IsEmpty]: Start isEmpty. Operand 96011 states and 132423 transitions. [2021-11-07 08:44:21,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-07 08:44:21,600 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:44:21,601 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:44:21,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:44:21,601 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)] === [2021-11-07 08:44:21,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:44:21,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1991802459, now seen corresponding path program 1 times [2021-11-07 08:44:21,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:44:21,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896528865] [2021-11-07 08:44:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:44:21,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:44:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:44:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:44:24,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:44:24,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896528865] [2021-11-07 08:44:24,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896528865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:44:24,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:44:24,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:44:24,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283820571] [2021-11-07 08:44:24,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:44:24,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:44:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:44:24,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:44:24,229 INFO L87 Difference]: Start difference. First operand 96011 states and 132423 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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)