./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-wip.dd.seqcomp-5b36d44 [2021-11-07 16:09:57,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:09:57,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:09:57,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:09:57,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:09:57,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:09:57,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:09:57,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:09:57,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:09:57,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:09:57,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:09:57,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:09:57,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:09:57,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:09:57,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:09:57,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:09:57,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:09:57,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:09:57,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:09:57,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:09:57,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:09:57,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:09:57,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:09:57,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:09:57,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:09:57,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:09:57,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:09:57,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:09:57,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:09:57,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:09:57,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:09:57,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:09:57,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:09:57,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:09:57,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:09:57,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:09:57,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:09:57,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:09:57,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:09:57,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:09:57,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:09:57,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:09:57,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:09:57,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:09:57,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:09:57,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:09:57,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:09:57,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:09:57,602 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:09:57,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:09:57,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:09:57,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:09:57,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:09:57,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:09:57,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:09:57,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:09:57,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:09:57,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:09:57,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:09:57,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:09:57,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:09:57,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:09:57,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:09:57,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:09:57,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:09:57,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:09:57,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:09:57,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:09:57,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:09:57,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:09:57,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:09:57,608 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abbffdcd9d162e40ee23574619503cd224e379518a2d0892b79cd093587730a2 [2021-11-07 16:09:57,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:09:57,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:09:57,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:09:57,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:09:57,813 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:09:57,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../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 16:09:57,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a86e6f1/78c263d0084947d4bb795cad16fdb90a/FLAGeda0ec251 [2021-11-07 16:09:58,828 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:09:58,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/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 16:09:58,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a86e6f1/78c263d0084947d4bb795cad16fdb90a/FLAGeda0ec251 [2021-11-07 16:09:59,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08a86e6f1/78c263d0084947d4bb795cad16fdb90a [2021-11-07 16:09:59,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:09:59,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:09:59,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:09:59,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:09:59,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:09:59,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:09:59" (1/1) ... [2021-11-07 16:09:59,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99070c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:09:59, skipping insertion in model container [2021-11-07 16:09:59,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:09:59" (1/1) ... [2021-11-07 16:09:59,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:09:59,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:10:05,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/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 16:10:05,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:10:05,243 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:10:06,242 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/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 16:10:06,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:10:06,455 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:10:06,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06 WrapperNode [2021-11-07 16:10:06,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:10:06,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:10:06,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:10:06,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:10:06,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:06,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:08,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:10:08,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:10:08,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:10:08,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:10:08,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:08,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:09,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:09,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:10,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:11,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:11,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:11,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:10:11,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:10:11,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:10:11,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:10:11,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (1/1) ... [2021-11-07 16:10:11,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:10:11,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:10:11,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 16:10:11,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 16:10:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_shutdown [2021-11-07 16:10:11,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_shutdown [2021-11-07 16:10:11,903 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-07 16:10:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure _ipr_initiate_ioa_reset [2021-11-07 16:10:11,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _ipr_initiate_ioa_reset [2021-11-07 16:10:11,904 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_page24_failed [2021-11-07 16:10:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_page24_failed [2021-11-07 16:10:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa [2021-11-07 16:10:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa [2021-11-07 16:10:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_dump [2021-11-07 16:10:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_dump [2021-11-07 16:10:11,905 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_all_resources [2021-11-07 16:10:11,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_all_resources [2021-11-07 16:10:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 16:10:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 16:10:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:10:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_mode_sense_failed [2021-11-07 16:10:11,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_mode_sense_failed [2021-11-07 16:10:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 16:10:11,906 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_done [2021-11-07 16:10:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_done [2021-11-07 16:10:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 16:10:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:10:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure __ipr_remove [2021-11-07 16:10:11,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __ipr_remove [2021-11-07 16:10:11,907 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_dev_reset [2021-11-07 16:10:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_dev_reset [2021-11-07 16:10:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_abort [2021-11-07 16:10:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_abort [2021-11-07 16:10:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_free_mem [2021-11-07 16:10:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_free_mem [2021-11-07 16:10:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 16:10:11,908 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 16:10:11,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:10:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-07 16:10:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_bringdown [2021-11-07 16:10:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_bringdown [2021-11-07 16:10:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:10:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 16:10:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 16:10:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:10:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:10:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_restore_cfg_space [2021-11-07 16:10:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_restore_cfg_space [2021-11-07 16:10:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_request_sense [2021-11-07 16:10:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_request_sense [2021-11-07 16:10:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_timer_done [2021-11-07 16:10:11,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_timer_done [2021-11-07 16:10:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:10:11,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:10:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 16:10:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 16:10:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 16:10:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 16:10:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_bus_reset_done [2021-11-07 16:10:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_bus_reset_done [2021-11-07 16:10:11,912 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_start [2021-11-07 16:10:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_start [2021-11-07 16:10:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_queuecommand [2021-11-07 16:10:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_queuecommand [2021-11-07 16:10:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_scsi_eh_done [2021-11-07 16:10:11,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_scsi_eh_done [2021-11-07 16:10:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_worker_thread [2021-11-07 16:10:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_worker_thread [2021-11-07 16:10:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_fail_all_ops [2021-11-07 16:10:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_fail_all_ops [2021-11-07 16:10:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cancel_hcam_done [2021-11-07 16:10:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cancel_hcam_done [2021-11-07 16:10:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_53 [2021-11-07 16:10:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_53 [2021-11-07 16:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:10:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_done [2021-11-07 16:10:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_done [2021-11-07 16:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_7 [2021-11-07 16:10:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_7 [2021-11-07 16:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_reset_work [2021-11-07 16:10:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_reset_work [2021-11-07 16:10:11,917 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_wait_for_ops [2021-11-07 16:10:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_wait_for_ops [2021-11-07 16:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_erp_cancel_all [2021-11-07 16:10:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_erp_cancel_all [2021-11-07 16:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_52 [2021-11-07 16:10:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_52 [2021-11-07 16:10:11,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_workqueue_41 [2021-11-07 16:10:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_workqueue_41 [2021-11-07 16:10:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_remove [2021-11-07 16:10:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_remove [2021-11-07 16:10:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe [2021-11-07 16:10:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe [2021-11-07 16:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_initiate_ioa_reset [2021-11-07 16:10:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_initiate_ioa_reset [2021-11-07 16:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_probe_ioa_part2 [2021-11-07 16:10:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_probe_ioa_part2 [2021-11-07 16:10:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_7 [2021-11-07 16:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_7 [2021-11-07 16:10:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_eh_host_reset [2021-11-07 16:10:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_eh_host_reset [2021-11-07 16:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_cmd_failed [2021-11-07 16:10:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_cmd_failed [2021-11-07 16:10:11,922 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_lock_and_done [2021-11-07 16:10:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_lock_and_done [2021-11-07 16:10:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_process_error [2021-11-07 16:10:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_process_error [2021-11-07 16:10:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 16:10:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 16:10:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_reset_ioa_job [2021-11-07 16:10:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_reset_ioa_job [2021-11-07 16:10:11,923 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_timeout [2021-11-07 16:10:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_timeout [2021-11-07 16:10:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:10:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure ipr_oper_timeout [2021-11-07 16:10:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ipr_oper_timeout [2021-11-07 16:13:25,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:13:25,729 INFO L299 CfgBuilder]: Removed 12843 assume(true) statements. [2021-11-07 16:13:25,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:13:25 BoogieIcfgContainer [2021-11-07 16:13:25,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:13:25,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:13:25,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:13:25,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:13:25,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:09:59" (1/3) ... [2021-11-07 16:13:25,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5d6fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:13:25, skipping insertion in model container [2021-11-07 16:13:25,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:10:06" (2/3) ... [2021-11-07 16:13:25,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5d6fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:13:25, skipping insertion in model container [2021-11-07 16:13:25,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:13:25" (3/3) ... [2021-11-07 16:13:25,745 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 16:13:25,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:13:25,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 16:13:25,826 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:13:25,831 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 16:13:25,832 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 16:13:26,011 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 16:13:26,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-07 16:13:26,039 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:13:26,040 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] [2021-11-07 16:13:26,042 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 16:13:26,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:13:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash -497443597, now seen corresponding path program 1 times [2021-11-07 16:13:26,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:13:26,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937619216] [2021-11-07 16:13:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:13:26,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:13:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:13:27,621 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 16:13:27,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:13:27,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937619216] [2021-11-07 16:13:27,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937619216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:13:27,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:13:27,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 16:13:27,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608229706] [2021-11-07 16:13:27,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:13:27,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 16:13:27,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:13:27,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 16:13:27,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:13:27,695 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 16:13:28,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:13:28,138 INFO L93 Difference]: Finished difference Result 25314 states and 34854 transitions. [2021-11-07 16:13:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 16:13:28,140 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 16:13:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:13:28,239 INFO L225 Difference]: With dead ends: 25314 [2021-11-07 16:13:28,239 INFO L226 Difference]: Without dead ends: 12586 [2021-11-07 16:13:28,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 16:13:28,323 INFO L933 BasicCegarLoop]: 17222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17222 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 16:13:28,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17222 Invalid, 0 Unknown, 0 Unchecked, 23.97ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 16:13:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12586 states. [2021-11-07 16:13:28,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12586 to 12586. [2021-11-07 16:13:28,716 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 16:13:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12586 states to 12586 states and 17082 transitions. [2021-11-07 16:13:28,782 INFO L78 Accepts]: Start accepts. Automaton has 12586 states and 17082 transitions. Word has length 280 [2021-11-07 16:13:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:13:28,784 INFO L470 AbstractCegarLoop]: Abstraction has 12586 states and 17082 transitions. [2021-11-07 16:13:28,785 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 16:13:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 12586 states and 17082 transitions. [2021-11-07 16:13:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-07 16:13:28,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:13:28,792 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] [2021-11-07 16:13:28,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:13:28,793 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 16:13:28,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:13:28,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1603454789, now seen corresponding path program 1 times [2021-11-07 16:13:28,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:13:28,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982356732] [2021-11-07 16:13:28,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:13:28,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:13:29,610 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 16:13:29,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316376202] [2021-11-07 16:13:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:13:29,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 16:13:29,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:13:29,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 16:13:29,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 16:13:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:13:37,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 14123 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 16:13:37,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 16:13:37,922 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 16:13:37,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 16:13:37,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:13:37,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982356732] [2021-11-07 16:13:37,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 16:13:37,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316376202] [2021-11-07 16:13:37,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316376202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:13:37,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:13:37,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:13:37,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992324163] [2021-11-07 16:13:37,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:13:37,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:13:37,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:13:37,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:13:37,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:37,928 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 16:13:38,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:13:38,864 INFO L93 Difference]: Finished difference Result 37062 states and 50471 transitions. [2021-11-07 16:13:38,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:13:38,865 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 16:13:38,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:13:38,999 INFO L225 Difference]: With dead ends: 37062 [2021-11-07 16:13:38,999 INFO L226 Difference]: Without dead ends: 24737 [2021-11-07 16:13:39,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:39,088 INFO L933 BasicCegarLoop]: 17253 mSDtfsCounter, 16860 mSDsluCounter, 16794 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 192.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16860 SdHoareTripleChecker+Valid, 34047 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 63.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 229.05ms IncrementalHoareTripleChecker+Time [2021-11-07 16:13:39,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16860 Valid, 34047 Invalid, 10 Unknown, 0 Unchecked, 63.30ms Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 229.05ms Time] [2021-11-07 16:13:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24737 states. [2021-11-07 16:13:39,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24737 to 24657. [2021-11-07 16:13:39,670 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 16:13:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24657 states to 24657 states and 33600 transitions. [2021-11-07 16:13:39,796 INFO L78 Accepts]: Start accepts. Automaton has 24657 states and 33600 transitions. Word has length 280 [2021-11-07 16:13:39,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:13:39,800 INFO L470 AbstractCegarLoop]: Abstraction has 24657 states and 33600 transitions. [2021-11-07 16:13:39,801 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 16:13:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 24657 states and 33600 transitions. [2021-11-07 16:13:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-07 16:13:39,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:13:39,809 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] [2021-11-07 16:13:39,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 16:13:40,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 16:13:40,024 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 16:13:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:13:40,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1381731114, now seen corresponding path program 1 times [2021-11-07 16:13:40,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:13:40,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313218120] [2021-11-07 16:13:40,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:13:40,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:13:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:13:41,436 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 16:13:41,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:13:41,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313218120] [2021-11-07 16:13:41,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313218120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:13:41,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:13:41,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:13:41,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076246689] [2021-11-07 16:13:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:13:41,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:13:41,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:13:41,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:13:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:41,443 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 16:13:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:13:42,648 INFO L93 Difference]: Finished difference Result 73129 states and 99801 transitions. [2021-11-07 16:13:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:13:42,649 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 16:13:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:13:42,889 INFO L225 Difference]: With dead ends: 73129 [2021-11-07 16:13:42,889 INFO L226 Difference]: Without dead ends: 48733 [2021-11-07 16:13:43,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:43,021 INFO L933 BasicCegarLoop]: 17476 mSDtfsCounter, 16799 mSDsluCounter, 16785 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 253.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16799 SdHoareTripleChecker+Valid, 34261 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 294.60ms IncrementalHoareTripleChecker+Time [2021-11-07 16:13:43,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16799 Valid, 34261 Invalid, 17 Unknown, 0 Unchecked, 54.14ms Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 294.60ms Time] [2021-11-07 16:13:43,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48733 states. [2021-11-07 16:13:44,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48733 to 48713. [2021-11-07 16:13:44,135 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 16:13:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48713 states to 48713 states and 66471 transitions. [2021-11-07 16:13:44,336 INFO L78 Accepts]: Start accepts. Automaton has 48713 states and 66471 transitions. Word has length 296 [2021-11-07 16:13:44,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:13:44,337 INFO L470 AbstractCegarLoop]: Abstraction has 48713 states and 66471 transitions. [2021-11-07 16:13:44,337 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 16:13:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 48713 states and 66471 transitions. [2021-11-07 16:13:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-07 16:13:44,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:13:44,347 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] [2021-11-07 16:13:44,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 16:13:44,347 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 16:13:44,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:13:44,348 INFO L85 PathProgramCache]: Analyzing trace with hash -420074503, now seen corresponding path program 1 times [2021-11-07 16:13:44,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:13:44,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309164827] [2021-11-07 16:13:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:13:44,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:13:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:13:45,825 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 16:13:45,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:13:45,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309164827] [2021-11-07 16:13:45,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309164827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:13:45,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:13:45,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:13:45,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827289231] [2021-11-07 16:13:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:13:45,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:13:45,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:13:45,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:13:45,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:45,828 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 16:13:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:13:47,941 INFO L93 Difference]: Finished difference Result 144555 states and 198716 transitions. [2021-11-07 16:13:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:13:47,942 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 16:13:47,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:13:48,423 INFO L225 Difference]: With dead ends: 144555 [2021-11-07 16:13:48,424 INFO L226 Difference]: Without dead ends: 96103 [2021-11-07 16:13:48,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:48,669 INFO L933 BasicCegarLoop]: 17867 mSDtfsCounter, 16863 mSDsluCounter, 16913 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 262.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16863 SdHoareTripleChecker+Valid, 34780 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.10ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 314.32ms IncrementalHoareTripleChecker+Time [2021-11-07 16:13:48,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16863 Valid, 34780 Invalid, 57 Unknown, 0 Unchecked, 37.10ms Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 314.32ms Time] [2021-11-07 16:13:48,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96103 states. [2021-11-07 16:13:51,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96103 to 96011. [2021-11-07 16:13:51,683 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 16:13:52,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96011 states to 96011 states and 132423 transitions. [2021-11-07 16:13:52,182 INFO L78 Accepts]: Start accepts. Automaton has 96011 states and 132423 transitions. Word has length 301 [2021-11-07 16:13:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:13:52,182 INFO L470 AbstractCegarLoop]: Abstraction has 96011 states and 132423 transitions. [2021-11-07 16:13:52,183 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 16:13:52,183 INFO L276 IsEmpty]: Start isEmpty. Operand 96011 states and 132423 transitions. [2021-11-07 16:13:52,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-07 16:13:52,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:13:52,222 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] [2021-11-07 16:13:52,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 16:13:52,222 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 16:13:52,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:13:52,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1991802459, now seen corresponding path program 1 times [2021-11-07 16:13:52,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:13:52,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329059411] [2021-11-07 16:13:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:13:52,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:13:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:13:53,978 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 16:13:53,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:13:53,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329059411] [2021-11-07 16:13:53,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329059411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:13:53,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:13:53,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:13:53,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663358883] [2021-11-07 16:13:53,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:13:53,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:13:53,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:13:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:13:53,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:53,982 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) [2021-11-07 16:13:56,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:13:56,669 INFO L93 Difference]: Finished difference Result 191769 states and 267268 transitions. [2021-11-07 16:13:56,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:13:56,670 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 351 [2021-11-07 16:13:56,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:13:57,179 INFO L225 Difference]: With dead ends: 191769 [2021-11-07 16:13:57,180 INFO L226 Difference]: Without dead ends: 96019 [2021-11-07 16:13:57,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:13:57,740 INFO L933 BasicCegarLoop]: 17077 mSDtfsCounter, 0 mSDsluCounter, 17070 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34147 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.12ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.80ms IncrementalHoareTripleChecker+Time [2021-11-07 16:13:57,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34147 Invalid, 14 Unknown, 0 Unchecked, 52.12ms Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 11.80ms Time] [2021-11-07 16:13:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96019 states. [2021-11-07 16:13:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96019 to 96011. [2021-11-07 16:13:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96011 states, 94266 states have (on average 1.361625612628095) internal successors, (128355), 94718 states have internal predecessors, (128355), 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 16:14:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96011 states to 96011 states and 132399 transitions. [2021-11-07 16:14:00,429 INFO L78 Accepts]: Start accepts. Automaton has 96011 states and 132399 transitions. Word has length 351 [2021-11-07 16:14:00,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:14:00,430 INFO L470 AbstractCegarLoop]: Abstraction has 96011 states and 132399 transitions. [2021-11-07 16:14:00,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-07 16:14:00,430 INFO L276 IsEmpty]: Start isEmpty. Operand 96011 states and 132399 transitions. [2021-11-07 16:14:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-07 16:14:00,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:14:00,465 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] [2021-11-07 16:14:00,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 16:14:00,466 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)] === [2021-11-07 16:14:00,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:14:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1975524458, now seen corresponding path program 1 times [2021-11-07 16:14:00,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:14:00,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274730827] [2021-11-07 16:14:00,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:14:00,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:14:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:14:02,502 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 16:14:02,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:14:02,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274730827] [2021-11-07 16:14:02,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274730827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:14:02,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:14:02,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:14:02,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363701406] [2021-11-07 16:14:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:14:02,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:14:02,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:14:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:14:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:14:02,506 INFO L87 Difference]: Start difference. First operand 96011 states and 132399 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2021-11-07 16:14:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:14:05,620 INFO L93 Difference]: Finished difference Result 165927 states and 233377 transitions. [2021-11-07 16:14:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:14:05,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 353 [2021-11-07 16:14:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:14:06,430 INFO L225 Difference]: With dead ends: 165927 [2021-11-07 16:14:06,430 INFO L226 Difference]: Without dead ends: 165901