./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.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 e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:03:33,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:03:33,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:03:33,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:03:33,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:03:33,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:03:33,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:03:33,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:03:33,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:03:33,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:03:33,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:03:33,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:03:33,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:03:33,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:03:33,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:03:33,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:03:33,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:03:33,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:03:33,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:03:33,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:03:33,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:03:33,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:03:33,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:03:33,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:03:33,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:03:33,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:03:33,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:03:33,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:03:33,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:03:33,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:03:33,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:03:33,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:03:33,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:03:33,647 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:03:33,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:03:33,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:03:33,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:03:33,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:03:33,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:03:33,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:03:33,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:03:33,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:03:33,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:03:33,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:03:33,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:03:33,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:03:33,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:03:33,683 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:03:33,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:03:33,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:03:33,684 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:03:33,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:03:33,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:03:33,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:03:33,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:03:33,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:03:33,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:03:33,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:03:33,686 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:03:33,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:03:33,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:03:33,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:03:33,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:03:33,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:03:33,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:03:33,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:03:33,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:03:33,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:03:33,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:03:33,688 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:03:33,688 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:03:33,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:03:33,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:03:33,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37e45521ffb127b83b9baab443e42b7c078cf8a8451cb2a1813ac325e01717d [2021-12-21 16:03:33,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:03:33,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:03:33,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:03:33,946 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:03:33,947 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:03:33,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-21 16:03:34,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267728fe4/3b9be2427acd46ae9c64662ce88e1090/FLAGbc5d82838 [2021-12-21 16:03:34,759 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:03:34,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-21 16:03:34,801 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267728fe4/3b9be2427acd46ae9c64662ce88e1090/FLAGbc5d82838 [2021-12-21 16:03:35,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/267728fe4/3b9be2427acd46ae9c64662ce88e1090 [2021-12-21 16:03:35,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:03:35,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:03:35,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:03:35,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:03:35,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:03:35,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:03:35" (1/1) ... [2021-12-21 16:03:35,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f87deea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:35, skipping insertion in model container [2021-12-21 16:03:35,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:03:35" (1/1) ... [2021-12-21 16:03:35,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:03:35,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:03:38,486 WARN L230 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2021-12-21 16:03:38,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:03:38,736 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:03:39,130 WARN L230 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i[353005,353018] [2021-12-21 16:03:39,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:03:39,506 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:03:39,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39 WrapperNode [2021-12-21 16:03:39,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:03:39,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:03:39,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:03:39,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:03:39,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:39,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,044 INFO L137 Inliner]: procedures = 511, calls = 3849, calls flagged for inlining = 265, calls inlined = 264, statements flattened = 9561 [2021-12-21 16:03:40,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:03:40,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:03:40,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:03:40,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:03:40,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:03:40,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:03:40,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:03:40,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:03:40,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (1/1) ... [2021-12-21 16:03:40,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:03:40,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:03:40,453 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) [2021-12-21 16:03:40,469 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 [2021-12-21 16:03:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-12-21 16:03:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-12-21 16:03:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:03:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:03:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2021-12-21 16:03:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2021-12-21 16:03:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2021-12-21 16:03:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2021-12-21 16:03:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2021-12-21 16:03:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2021-12-21 16:03:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2021-12-21 16:03:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2021-12-21 16:03:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-21 16:03:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-21 16:03:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2021-12-21 16:03:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2021-12-21 16:03:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 16:03:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 16:03:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2021-12-21 16:03:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2021-12-21 16:03:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2021-12-21 16:03:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2021-12-21 16:03:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:03:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure moutdwm [2021-12-21 16:03:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure moutdwm [2021-12-21 16:03:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2021-12-21 16:03:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2021-12-21 16:03:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2021-12-21 16:03:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2021-12-21 16:03:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2021-12-21 16:03:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2021-12-21 16:03:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-21 16:03:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-21 16:03:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2021-12-21 16:03:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2021-12-21 16:03:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2021-12-21 16:03:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2021-12-21 16:03:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:03:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-21 16:03:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-21 16:03:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-21 16:03:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-21 16:03:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:03:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-12-21 16:03:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-12-21 16:03:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2021-12-21 16:03:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2021-12-21 16:03:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:03:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2021-12-21 16:03:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2021-12-21 16:03:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-21 16:03:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-21 16:03:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure mindwm [2021-12-21 16:03:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mindwm [2021-12-21 16:03:40,502 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2021-12-21 16:03:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2021-12-21 16:03:40,503 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-21 16:03:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-21 16:03:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_create_handle [2021-12-21 16:03:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_create_handle [2021-12-21 16:03:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:03:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:03:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2021-12-21 16:03:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2021-12-21 16:03:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:03:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:03:40,505 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2021-12-21 16:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2021-12-21 16:03:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:03:40,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:03:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:03:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2021-12-21 16:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2021-12-21 16:03:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2021-12-21 16:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2021-12-21 16:03:40,507 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2021-12-21 16:03:40,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2021-12-21 16:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-21 16:03:40,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-21 16:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2021-12-21 16:03:40,508 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2021-12-21 16:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2021-12-21 16:03:40,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2021-12-21 16:03:40,508 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 16:03:40,508 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 16:03:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:03:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:03:40,509 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-21 16:03:40,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-21 16:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2021-12-21 16:03:40,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2021-12-21 16:03:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2021-12-21 16:03:40,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2021-12-21 16:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2021-12-21 16:03:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2021-12-21 16:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2021-12-21 16:03:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2021-12-21 16:03:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2021-12-21 16:03:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2021-12-21 16:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:03:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:03:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:03:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2021-12-21 16:03:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2021-12-21 16:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-12-21 16:03:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-12-21 16:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2021-12-21 16:03:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2021-12-21 16:03:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:03:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-21 16:03:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-21 16:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:03:40,514 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-12-21 16:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-21 16:03:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-21 16:03:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-21 16:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:03:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2021-12-21 16:03:40,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2021-12-21 16:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2021-12-21 16:03:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2021-12-21 16:03:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:03:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2021-12-21 16:03:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2021-12-21 16:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:03:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2021-12-21 16:03:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2021-12-21 16:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-21 16:03:40,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-21 16:03:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2021-12-21 16:03:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2021-12-21 16:03:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2021-12-21 16:03:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2021-12-21 16:03:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2021-12-21 16:03:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2021-12-21 16:03:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2021-12-21 16:03:40,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2021-12-21 16:03:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2021-12-21 16:03:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2021-12-21 16:03:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2021-12-21 16:03:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2021-12-21 16:03:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2021-12-21 16:03:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2021-12-21 16:03:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2021-12-21 16:03:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2021-12-21 16:03:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2021-12-21 16:03:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2021-12-21 16:03:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2021-12-21 16:03:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2021-12-21 16:03:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2021-12-21 16:03:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2021-12-21 16:03:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:03:40,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:03:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:03:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2021-12-21 16:03:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2021-12-21 16:03:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2021-12-21 16:03:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2021-12-21 16:03:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:03:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:03:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fasync [2021-12-21 16:03:40,529 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fasync [2021-12-21 16:03:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-21 16:03:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-21 16:03:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2021-12-21 16:03:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2021-12-21 16:03:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2021-12-21 16:03:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2021-12-21 16:03:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-21 16:03:40,530 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-21 16:03:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2021-12-21 16:03:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2021-12-21 16:03:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-21 16:03:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-21 16:03:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2021-12-21 16:03:40,531 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2021-12-21 16:03:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2021-12-21 16:03:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2021-12-21 16:03:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_scan2 [2021-12-21 16:03:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_scan2 [2021-12-21 16:03:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-21 16:03:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-21 16:03:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2021-12-21 16:03:40,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2021-12-21 16:03:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2021-12-21 16:03:40,533 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2021-12-21 16:03:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2021-12-21 16:03:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2021-12-21 16:03:40,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:03:41,741 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:03:41,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:03:56,324 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ast_gem_init_object_returnLabel#1: main_#t~ret94#1 := ast_gem_init_object_#res#1;assume { :end_inline_ast_gem_init_object } true;assume -2147483648 <= main_#t~ret94#1 && main_#t~ret94#1 <= 2147483647;havoc main_#t~ret94#1;~ldv_state_variable_13~0 := 1; [2021-12-21 16:03:56,376 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:03:56,401 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:03:56,402 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 16:03:56,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:03:56 BoogieIcfgContainer [2021-12-21 16:03:56,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:03:56,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:03:56,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:03:56,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:03:56,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:03:35" (1/3) ... [2021-12-21 16:03:56,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9a9306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:03:56, skipping insertion in model container [2021-12-21 16:03:56,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:03:39" (2/3) ... [2021-12-21 16:03:56,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9a9306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:03:56, skipping insertion in model container [2021-12-21 16:03:56,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:03:56" (3/3) ... [2021-12-21 16:03:56,415 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--gpu--drm--ast--ast.ko-main.cil.out.i [2021-12-21 16:03:56,420 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:03:56,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:03:56,478 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:03:56,489 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 [2021-12-21 16:03:56,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:03:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 2566 states, 1829 states have (on average 1.437944231820667) internal successors, (2630), 1887 states have internal predecessors, (2630), 647 states have call successors, (647), 88 states have call predecessors, (647), 88 states have return successors, (647), 627 states have call predecessors, (647), 647 states have call successors, (647) [2021-12-21 16:03:56,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-21 16:03:56,618 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:03:56,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:03:56,620 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:03:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:03:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash 337264067, now seen corresponding path program 1 times [2021-12-21 16:03:56,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:03:56,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224447855] [2021-12-21 16:03:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:03:56,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:03:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:03:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:03:57,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:03:57,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224447855] [2021-12-21 16:03:57,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224447855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:03:57,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:03:57,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:03:57,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955989292] [2021-12-21 16:03:57,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:03:57,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:03:57,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:03:57,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:03:57,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:03:57,369 INFO L87 Difference]: Start difference. First operand has 2566 states, 1829 states have (on average 1.437944231820667) internal successors, (2630), 1887 states have internal predecessors, (2630), 647 states have call successors, (647), 88 states have call predecessors, (647), 88 states have return successors, (647), 627 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-21 16:03:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:03:57,932 INFO L93 Difference]: Finished difference Result 7661 states and 11847 transitions. [2021-12-21 16:03:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:03:57,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 18 [2021-12-21 16:03:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:03:57,989 INFO L225 Difference]: With dead ends: 7661 [2021-12-21 16:03:57,989 INFO L226 Difference]: Without dead ends: 5092 [2021-12-21 16:03:58,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:03:58,016 INFO L933 BasicCegarLoop]: 4561 mSDtfsCounter, 3866 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3866 SdHoareTripleChecker+Valid, 8451 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:03:58,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3866 Valid, 8451 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:03:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2021-12-21 16:03:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 5086. [2021-12-21 16:03:58,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 3628 states have (on average 1.4355016538037486) internal successors, (5208), 3730 states have internal predecessors, (5208), 1283 states have call successors, (1283), 175 states have call predecessors, (1283), 174 states have return successors, (1272), 1232 states have call predecessors, (1272), 1272 states have call successors, (1272) [2021-12-21 16:03:58,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7763 transitions. [2021-12-21 16:03:58,444 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7763 transitions. Word has length 18 [2021-12-21 16:03:58,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:03:58,446 INFO L470 AbstractCegarLoop]: Abstraction has 5086 states and 7763 transitions. [2021-12-21 16:03:58,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-12-21 16:03:58,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7763 transitions. [2021-12-21 16:03:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 16:03:58,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:03:58,454 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] [2021-12-21 16:03:58,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:03:58,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:03:58,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:03:58,458 INFO L85 PathProgramCache]: Analyzing trace with hash -427214803, now seen corresponding path program 1 times [2021-12-21 16:03:58,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:03:58,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133020797] [2021-12-21 16:03:58,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:03:58,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:03:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:03:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:03:58,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:03:58,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133020797] [2021-12-21 16:03:58,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133020797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:03:58,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:03:58,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:03:58,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887497501] [2021-12-21 16:03:58,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:03:58,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:03:58,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:03:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:03:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:03:58,860 INFO L87 Difference]: Start difference. First operand 5086 states and 7763 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:03:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:03:59,277 INFO L93 Difference]: Finished difference Result 14683 states and 22435 transitions. [2021-12-21 16:03:59,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:03:59,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-21 16:03:59,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:03:59,352 INFO L225 Difference]: With dead ends: 14683 [2021-12-21 16:03:59,353 INFO L226 Difference]: Without dead ends: 9600 [2021-12-21 16:03:59,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:03:59,389 INFO L933 BasicCegarLoop]: 4696 mSDtfsCounter, 3468 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3468 SdHoareTripleChecker+Valid, 8574 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:03:59,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3468 Valid, 8574 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:03:59,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-21 16:04:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9577. [2021-12-21 16:04:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9577 states, 6793 states have (on average 1.4382452524657736) internal successors, (9770), 6985 states have internal predecessors, (9770), 2443 states have call successors, (2443), 341 states have call predecessors, (2443), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-21 16:04:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9577 states to 9577 states and 14645 transitions. [2021-12-21 16:04:00,153 INFO L78 Accepts]: Start accepts. Automaton has 9577 states and 14645 transitions. Word has length 23 [2021-12-21 16:04:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:00,154 INFO L470 AbstractCegarLoop]: Abstraction has 9577 states and 14645 transitions. [2021-12-21 16:04:00,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 9577 states and 14645 transitions. [2021-12-21 16:04:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-21 16:04:00,158 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:00,158 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] [2021-12-21 16:04:00,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:04:00,158 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:00,159 INFO L85 PathProgramCache]: Analyzing trace with hash -541647884, now seen corresponding path program 1 times [2021-12-21 16:04:00,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:00,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190437641] [2021-12-21 16:04:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:00,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:00,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:00,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:00,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190437641] [2021-12-21 16:04:00,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190437641] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:00,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:00,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:04:00,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466898927] [2021-12-21 16:04:00,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:00,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:04:00,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:00,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:04:00,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:04:00,540 INFO L87 Difference]: Start difference. First operand 9577 states and 14645 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-12-21 16:04:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:00,957 INFO L93 Difference]: Finished difference Result 19174 states and 29319 transitions. [2021-12-21 16:04:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:04:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 22 [2021-12-21 16:04:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:01,035 INFO L225 Difference]: With dead ends: 19174 [2021-12-21 16:04:01,035 INFO L226 Difference]: Without dead ends: 9600 [2021-12-21 16:04:01,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:04:01,096 INFO L933 BasicCegarLoop]: 3900 mSDtfsCounter, 34 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 11695 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:01,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 11695 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2021-12-21 16:04:01,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9580. [2021-12-21 16:04:01,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9580 states, 6796 states have (on average 1.4380517951736316) internal successors, (9773), 6988 states have internal predecessors, (9773), 2443 states have call successors, (2443), 341 states have call predecessors, (2443), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-21 16:04:01,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9580 states to 9580 states and 14648 transitions. [2021-12-21 16:04:01,756 INFO L78 Accepts]: Start accepts. Automaton has 9580 states and 14648 transitions. Word has length 22 [2021-12-21 16:04:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:01,771 INFO L470 AbstractCegarLoop]: Abstraction has 9580 states and 14648 transitions. [2021-12-21 16:04:01,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-12-21 16:04:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 9580 states and 14648 transitions. [2021-12-21 16:04:01,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-21 16:04:01,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:01,773 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] [2021-12-21 16:04:01,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:04:01,774 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:01,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:01,774 INFO L85 PathProgramCache]: Analyzing trace with hash -484389582, now seen corresponding path program 1 times [2021-12-21 16:04:01,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:01,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590649725] [2021-12-21 16:04:01,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:01,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:02,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:02,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590649725] [2021-12-21 16:04:02,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590649725] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:02,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:02,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:02,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702655898] [2021-12-21 16:04:02,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:02,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:02,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:02,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:02,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:02,050 INFO L87 Difference]: Start difference. First operand 9580 states and 14648 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-21 16:04:02,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:02,290 INFO L93 Difference]: Finished difference Result 9582 states and 14649 transitions. [2021-12-21 16:04:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:02,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 22 [2021-12-21 16:04:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:02,338 INFO L225 Difference]: With dead ends: 9582 [2021-12-21 16:04:02,338 INFO L226 Difference]: Without dead ends: 9579 [2021-12-21 16:04:02,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:02,349 INFO L933 BasicCegarLoop]: 3900 mSDtfsCounter, 3882 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3882 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:02,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3882 Valid, 3900 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:02,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9579 states. [2021-12-21 16:04:02,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9579 to 9579. [2021-12-21 16:04:02,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9579 states, 6796 states have (on average 1.4379046497939965) internal successors, (9772), 6987 states have internal predecessors, (9772), 2442 states have call successors, (2442), 341 states have call predecessors, (2442), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-21 16:04:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9579 states to 9579 states and 14646 transitions. [2021-12-21 16:04:02,970 INFO L78 Accepts]: Start accepts. Automaton has 9579 states and 14646 transitions. Word has length 22 [2021-12-21 16:04:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:02,970 INFO L470 AbstractCegarLoop]: Abstraction has 9579 states and 14646 transitions. [2021-12-21 16:04:02,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-12-21 16:04:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9579 states and 14646 transitions. [2021-12-21 16:04:02,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 16:04:02,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:02,973 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] [2021-12-21 16:04:02,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:04:02,973 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:02,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2132288794, now seen corresponding path program 1 times [2021-12-21 16:04:02,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:02,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467283495] [2021-12-21 16:04:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:02,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:03,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:03,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467283495] [2021-12-21 16:04:03,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467283495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:03,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:03,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:03,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360284569] [2021-12-21 16:04:03,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:03,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:03,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:03,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:03,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:03,250 INFO L87 Difference]: Start difference. First operand 9579 states and 14646 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-12-21 16:04:03,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:03,566 INFO L93 Difference]: Finished difference Result 9581 states and 14647 transitions. [2021-12-21 16:04:03,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:03,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 23 [2021-12-21 16:04:03,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:03,611 INFO L225 Difference]: With dead ends: 9581 [2021-12-21 16:04:03,611 INFO L226 Difference]: Without dead ends: 9578 [2021-12-21 16:04:03,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:03,622 INFO L933 BasicCegarLoop]: 3898 mSDtfsCounter, 3879 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3879 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:03,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3879 Valid, 3898 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2021-12-21 16:04:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 9578. [2021-12-21 16:04:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9578 states, 6796 states have (on average 1.4377575044143613) internal successors, (9771), 6986 states have internal predecessors, (9771), 2441 states have call successors, (2441), 341 states have call predecessors, (2441), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-21 16:04:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9578 states to 9578 states and 14644 transitions. [2021-12-21 16:04:04,279 INFO L78 Accepts]: Start accepts. Automaton has 9578 states and 14644 transitions. Word has length 23 [2021-12-21 16:04:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:04,279 INFO L470 AbstractCegarLoop]: Abstraction has 9578 states and 14644 transitions. [2021-12-21 16:04:04,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-12-21 16:04:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 9578 states and 14644 transitions. [2021-12-21 16:04:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 16:04:04,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:04,283 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] [2021-12-21 16:04:04,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:04:04,283 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1677551947, now seen corresponding path program 1 times [2021-12-21 16:04:04,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:04,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813676197] [2021-12-21 16:04:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:04,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:04,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:04,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813676197] [2021-12-21 16:04:04,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813676197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:04,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:04,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:04,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521946967] [2021-12-21 16:04:04,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:04,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:04,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:04,550 INFO L87 Difference]: Start difference. First operand 9578 states and 14644 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-12-21 16:04:04,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:04,832 INFO L93 Difference]: Finished difference Result 9580 states and 14645 transitions. [2021-12-21 16:04:04,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:04,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 24 [2021-12-21 16:04:04,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:04,880 INFO L225 Difference]: With dead ends: 9580 [2021-12-21 16:04:04,881 INFO L226 Difference]: Without dead ends: 9577 [2021-12-21 16:04:04,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:04,893 INFO L933 BasicCegarLoop]: 3896 mSDtfsCounter, 3876 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3876 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:04,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3876 Valid, 3896 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:04,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-12-21 16:04:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 9577. [2021-12-21 16:04:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9577 states, 6796 states have (on average 1.4376103590347262) internal successors, (9770), 6985 states have internal predecessors, (9770), 2440 states have call successors, (2440), 341 states have call predecessors, (2440), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-21 16:04:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9577 states to 9577 states and 14642 transitions. [2021-12-21 16:04:05,436 INFO L78 Accepts]: Start accepts. Automaton has 9577 states and 14642 transitions. Word has length 24 [2021-12-21 16:04:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:05,436 INFO L470 AbstractCegarLoop]: Abstraction has 9577 states and 14642 transitions. [2021-12-21 16:04:05,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-12-21 16:04:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 9577 states and 14642 transitions. [2021-12-21 16:04:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-21 16:04:05,439 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:05,439 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] [2021-12-21 16:04:05,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:04:05,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -465606711, now seen corresponding path program 1 times [2021-12-21 16:04:05,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126090429] [2021-12-21 16:04:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:05,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:05,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126090429] [2021-12-21 16:04:05,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126090429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:05,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:05,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:05,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079479249] [2021-12-21 16:04:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:05,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:05,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:05,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:05,733 INFO L87 Difference]: Start difference. First operand 9577 states and 14642 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-12-21 16:04:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:05,996 INFO L93 Difference]: Finished difference Result 9579 states and 14643 transitions. [2021-12-21 16:04:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:05,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 25 [2021-12-21 16:04:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:06,042 INFO L225 Difference]: With dead ends: 9579 [2021-12-21 16:04:06,043 INFO L226 Difference]: Without dead ends: 9576 [2021-12-21 16:04:06,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:06,056 INFO L933 BasicCegarLoop]: 3894 mSDtfsCounter, 3873 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3873 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:06,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3873 Valid, 3894 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9576 states. [2021-12-21 16:04:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9576 to 9576. [2021-12-21 16:04:06,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9576 states, 6796 states have (on average 1.4374632136550913) internal successors, (9769), 6984 states have internal predecessors, (9769), 2439 states have call successors, (2439), 341 states have call predecessors, (2439), 340 states have return successors, (2432), 2352 states have call predecessors, (2432), 2432 states have call successors, (2432) [2021-12-21 16:04:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9576 states to 9576 states and 14640 transitions. [2021-12-21 16:04:06,644 INFO L78 Accepts]: Start accepts. Automaton has 9576 states and 14640 transitions. Word has length 25 [2021-12-21 16:04:06,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:06,644 INFO L470 AbstractCegarLoop]: Abstraction has 9576 states and 14640 transitions. [2021-12-21 16:04:06,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-12-21 16:04:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 9576 states and 14640 transitions. [2021-12-21 16:04:06,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-21 16:04:06,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:06,648 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] [2021-12-21 16:04:06,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 16:04:06,649 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:06,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1488446885, now seen corresponding path program 1 times [2021-12-21 16:04:06,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:06,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021895681] [2021-12-21 16:04:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:06,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:06,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:06,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021895681] [2021-12-21 16:04:06,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021895681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:06,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:06,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:06,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931168943] [2021-12-21 16:04:06,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:06,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:06,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:06,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:06,868 INFO L87 Difference]: Start difference. First operand 9576 states and 14640 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:07,557 INFO L93 Difference]: Finished difference Result 28641 states and 43792 transitions. [2021-12-21 16:04:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-12-21 16:04:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:07,655 INFO L225 Difference]: With dead ends: 28641 [2021-12-21 16:04:07,656 INFO L226 Difference]: Without dead ends: 19068 [2021-12-21 16:04:07,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:07,711 INFO L933 BasicCegarLoop]: 5186 mSDtfsCounter, 3849 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3849 SdHoareTripleChecker+Valid, 9063 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:07,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3849 Valid, 9063 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19068 states. [2021-12-21 16:04:09,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19068 to 19046. [2021-12-21 16:04:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19046 states, 13510 states have (on average 1.4372316802368617) internal successors, (19417), 13880 states have internal predecessors, (19417), 4859 states have call successors, (4859), 677 states have call predecessors, (4859), 676 states have return successors, (4852), 4692 states have call predecessors, (4852), 4852 states have call successors, (4852) [2021-12-21 16:04:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19046 states to 19046 states and 29128 transitions. [2021-12-21 16:04:09,153 INFO L78 Accepts]: Start accepts. Automaton has 19046 states and 29128 transitions. Word has length 29 [2021-12-21 16:04:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:09,154 INFO L470 AbstractCegarLoop]: Abstraction has 19046 states and 29128 transitions. [2021-12-21 16:04:09,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 19046 states and 29128 transitions. [2021-12-21 16:04:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-21 16:04:09,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:09,157 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] [2021-12-21 16:04:09,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 16:04:09,157 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1550005192, now seen corresponding path program 1 times [2021-12-21 16:04:09,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:09,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181351110] [2021-12-21 16:04:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:09,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:09,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:09,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181351110] [2021-12-21 16:04:09,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181351110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:09,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:09,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:09,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397182395] [2021-12-21 16:04:09,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:09,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:09,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:09,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:09,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:09,415 INFO L87 Difference]: Start difference. First operand 19046 states and 29128 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-12-21 16:04:10,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:10,045 INFO L93 Difference]: Finished difference Result 19074 states and 29146 transitions. [2021-12-21 16:04:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:10,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 26 [2021-12-21 16:04:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:10,151 INFO L225 Difference]: With dead ends: 19074 [2021-12-21 16:04:10,152 INFO L226 Difference]: Without dead ends: 19070 [2021-12-21 16:04:10,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:10,176 INFO L933 BasicCegarLoop]: 3889 mSDtfsCounter, 3858 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3858 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:10,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3858 Valid, 3898 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:10,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-12-21 16:04:11,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 19068. [2021-12-21 16:04:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19068 states, 13526 states have (on average 1.4360490906402483) internal successors, (19424), 13894 states have internal predecessors, (19424), 4857 states have call successors, (4857), 685 states have call predecessors, (4857), 684 states have return successors, (4852), 4692 states have call predecessors, (4852), 4852 states have call successors, (4852) [2021-12-21 16:04:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19068 states to 19068 states and 29133 transitions. [2021-12-21 16:04:11,554 INFO L78 Accepts]: Start accepts. Automaton has 19068 states and 29133 transitions. Word has length 26 [2021-12-21 16:04:11,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:11,555 INFO L470 AbstractCegarLoop]: Abstraction has 19068 states and 29133 transitions. [2021-12-21 16:04:11,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-12-21 16:04:11,555 INFO L276 IsEmpty]: Start isEmpty. Operand 19068 states and 29133 transitions. [2021-12-21 16:04:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-21 16:04:11,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:11,558 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] [2021-12-21 16:04:11,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 16:04:11,559 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:11,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:11,559 INFO L85 PathProgramCache]: Analyzing trace with hash -806614868, now seen corresponding path program 1 times [2021-12-21 16:04:11,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:11,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760605987] [2021-12-21 16:04:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:11,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:11,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:11,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760605987] [2021-12-21 16:04:11,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760605987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:11,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:11,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:11,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115803649] [2021-12-21 16:04:11,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:11,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:11,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:11,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:11,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:11,801 INFO L87 Difference]: Start difference. First operand 19068 states and 29133 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-12-21 16:04:12,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:12,737 INFO L93 Difference]: Finished difference Result 39355 states and 59716 transitions. [2021-12-21 16:04:12,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:12,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 27 [2021-12-21 16:04:12,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:12,857 INFO L225 Difference]: With dead ends: 39355 [2021-12-21 16:04:12,857 INFO L226 Difference]: Without dead ends: 20290 [2021-12-21 16:04:12,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:12,964 INFO L933 BasicCegarLoop]: 3957 mSDtfsCounter, 3744 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:12,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3744 Valid, 4252 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20290 states. [2021-12-21 16:04:14,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20290 to 20227. [2021-12-21 16:04:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20227 states, 14274 states have (on average 1.417051982625753) internal successors, (20227), 14648 states have internal predecessors, (20227), 5044 states have call successors, (5044), 890 states have call predecessors, (5044), 908 states have return successors, (5092), 4900 states have call predecessors, (5092), 5036 states have call successors, (5092) [2021-12-21 16:04:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20227 states to 20227 states and 30363 transitions. [2021-12-21 16:04:14,524 INFO L78 Accepts]: Start accepts. Automaton has 20227 states and 30363 transitions. Word has length 27 [2021-12-21 16:04:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:14,525 INFO L470 AbstractCegarLoop]: Abstraction has 20227 states and 30363 transitions. [2021-12-21 16:04:14,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-12-21 16:04:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 20227 states and 30363 transitions. [2021-12-21 16:04:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-21 16:04:14,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:14,529 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] [2021-12-21 16:04:14,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 16:04:14,530 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:14,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:14,530 INFO L85 PathProgramCache]: Analyzing trace with hash 763653563, now seen corresponding path program 1 times [2021-12-21 16:04:14,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:14,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605458822] [2021-12-21 16:04:14,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:14,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:14,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:14,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605458822] [2021-12-21 16:04:14,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605458822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:14,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:14,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:14,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483218136] [2021-12-21 16:04:14,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:14,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:14,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:14,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:14,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:14,902 INFO L87 Difference]: Start difference. First operand 20227 states and 30363 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-12-21 16:04:15,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:15,658 INFO L93 Difference]: Finished difference Result 20229 states and 30364 transitions. [2021-12-21 16:04:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:15,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 28 [2021-12-21 16:04:15,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:15,842 INFO L225 Difference]: With dead ends: 20229 [2021-12-21 16:04:15,843 INFO L226 Difference]: Without dead ends: 20213 [2021-12-21 16:04:15,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:15,854 INFO L933 BasicCegarLoop]: 3887 mSDtfsCounter, 3862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 3887 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:15,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3862 Valid, 3887 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:04:15,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20213 states. [2021-12-21 16:04:17,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20213 to 20213. [2021-12-21 16:04:17,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20213 states, 14261 states have (on average 1.4162400953649814) internal successors, (20197), 14634 states have internal predecessors, (20197), 5043 states have call successors, (5043), 890 states have call predecessors, (5043), 908 states have return successors, (5092), 4900 states have call predecessors, (5092), 5036 states have call successors, (5092) [2021-12-21 16:04:17,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20213 states to 20213 states and 30332 transitions. [2021-12-21 16:04:17,107 INFO L78 Accepts]: Start accepts. Automaton has 20213 states and 30332 transitions. Word has length 28 [2021-12-21 16:04:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:17,107 INFO L470 AbstractCegarLoop]: Abstraction has 20213 states and 30332 transitions. [2021-12-21 16:04:17,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-12-21 16:04:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 20213 states and 30332 transitions. [2021-12-21 16:04:17,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-21 16:04:17,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:17,123 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:17,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 16:04:17,124 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash 929900714, now seen corresponding path program 1 times [2021-12-21 16:04:17,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:17,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578630112] [2021-12-21 16:04:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:17,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 16:04:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 16:04:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-21 16:04:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:04:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 16:04:17,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:17,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578630112] [2021-12-21 16:04:17,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578630112] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:17,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:17,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:04:17,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442115420] [2021-12-21 16:04:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:17,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:04:17,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:04:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:04:17,412 INFO L87 Difference]: Start difference. First operand 20213 states and 30332 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 16:04:20,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []