./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:04:35,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:04:35,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:04:35,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:04:35,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:04:35,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:04:35,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:04:35,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:04:35,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:04:35,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:04:35,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:04:35,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:04:35,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:04:35,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:04:35,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:04:35,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:04:35,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:04:35,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:04:35,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:04:35,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:04:35,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:04:35,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:04:35,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:04:35,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:04:35,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:04:35,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:04:35,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:04:35,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:04:35,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:04:35,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:04:35,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:04:35,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:04:35,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:04:35,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:04:35,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:04:35,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:04:35,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:04:35,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:04:35,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:04:35,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:04:35,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:04:35,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:04:35,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:04:35,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:04:35,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:04:35,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:04:35,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:04:35,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:04:35,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:04:35,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:04:35,781 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:04:35,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:04:35,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:04:35,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:04:35,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:04:35,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:04:35,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:04:35,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:04:35,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:04:35,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:04:35,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:04:35,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:04:35,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:04:35,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:04:35,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:04:35,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:04:35,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:04:35,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:04:35,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:04:35,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:04:35,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:04:35,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:04:35,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:04:35,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-12-22 14:04:35,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:04:35,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:04:35,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:04:35,999 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:04:35,999 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:04:36,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-22 14:04:36,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bf26a95/1fd7972d219641f39e00a327b7b3a838/FLAG069b03a3b [2021-12-22 14:04:36,631 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:04:36,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-22 14:04:36,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bf26a95/1fd7972d219641f39e00a327b7b3a838/FLAG069b03a3b [2021-12-22 14:04:37,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2bf26a95/1fd7972d219641f39e00a327b7b3a838 [2021-12-22 14:04:37,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:04:37,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:04:37,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:04:37,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:04:37,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:04:37,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:04:37" (1/1) ... [2021-12-22 14:04:37,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ee534dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:37, skipping insertion in model container [2021-12-22 14:04:37,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:04:37" (1/1) ... [2021-12-22 14:04:37,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:04:37,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:04:38,396 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-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-12-22 14:04:38,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:04:38,491 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:04:38,766 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-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-12-22 14:04:38,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:04:38,850 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:04:38,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38 WrapperNode [2021-12-22 14:04:38,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:04:38,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:04:38,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:04:38,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:04:38,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:38,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,056 INFO L137 Inliner]: procedures = 309, calls = 2428, calls flagged for inlining = 139, calls inlined = 90, statements flattened = 3931 [2021-12-22 14:04:39,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:04:39,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:04:39,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:04:39,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:04:39,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:04:39,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:04:39,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:04:39,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:04:39,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (1/1) ... [2021-12-22 14:04:39,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:04:39,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:04:39,283 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) [2021-12-22 14:04:39,304 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 [2021-12-22 14:04:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 14:04:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 14:04:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 14:04:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 14:04:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2021-12-22 14:04:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2021-12-22 14:04:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2021-12-22 14:04:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2021-12-22 14:04:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-12-22 14:04:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-12-22 14:04:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:04:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:04:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2021-12-22 14:04:39,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2021-12-22 14:04:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2021-12-22 14:04:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2021-12-22 14:04:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:04:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:04:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2021-12-22 14:04:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2021-12-22 14:04:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-22 14:04:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-22 14:04:39,318 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2021-12-22 14:04:39,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2021-12-22 14:04:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2021-12-22 14:04:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2021-12-22 14:04:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2021-12-22 14:04:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2021-12-22 14:04:39,319 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:04:39,319 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:04:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2021-12-22 14:04:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2021-12-22 14:04:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-22 14:04:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-22 14:04:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2021-12-22 14:04:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2021-12-22 14:04:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:04:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:04:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:04:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:04:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2021-12-22 14:04:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2021-12-22 14:04:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2021-12-22 14:04:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2021-12-22 14:04:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:04:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:04:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2021-12-22 14:04:39,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2021-12-22 14:04:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2021-12-22 14:04:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2021-12-22 14:04:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-22 14:04:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-22 14:04:39,322 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2021-12-22 14:04:39,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2021-12-22 14:04:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:04:39,323 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:04:39,323 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:04:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2021-12-22 14:04:39,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2021-12-22 14:04:39,324 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2021-12-22 14:04:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2021-12-22 14:04:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2021-12-22 14:04:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2021-12-22 14:04:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2021-12-22 14:04:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2021-12-22 14:04:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2021-12-22 14:04:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2021-12-22 14:04:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:04:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-12-22 14:04:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-12-22 14:04:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2021-12-22 14:04:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2021-12-22 14:04:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2021-12-22 14:04:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2021-12-22 14:04:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2021-12-22 14:04:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2021-12-22 14:04:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-22 14:04:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-22 14:04:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-22 14:04:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-22 14:04:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:04:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2021-12-22 14:04:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2021-12-22 14:04:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:04:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:04:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:04:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-22 14:04:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-22 14:04:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-12-22 14:04:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-12-22 14:04:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-22 14:04:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-22 14:04:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:04:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:04:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:04:39,329 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:04:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 14:04:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 14:04:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:04:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:04:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:04:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:04:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2021-12-22 14:04:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2021-12-22 14:04:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2021-12-22 14:04:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2021-12-22 14:04:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2021-12-22 14:04:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2021-12-22 14:04:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:04:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:04:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:04:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:04:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:04:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-22 14:04:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-22 14:04:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2021-12-22 14:04:39,332 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2021-12-22 14:04:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-22 14:04:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-22 14:04:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:04:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2021-12-22 14:04:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2021-12-22 14:04:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:04:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-12-22 14:04:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-12-22 14:04:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:04:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:04:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2021-12-22 14:04:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2021-12-22 14:04:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:04:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:04:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2021-12-22 14:04:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2021-12-22 14:04:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:04:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:04:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2021-12-22 14:04:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2021-12-22 14:04:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:04:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:04:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 14:04:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 14:04:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:04:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2021-12-22 14:04:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2021-12-22 14:04:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:04:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2021-12-22 14:04:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2021-12-22 14:04:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2021-12-22 14:04:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2021-12-22 14:04:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-12-22 14:04:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-12-22 14:04:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2021-12-22 14:04:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2021-12-22 14:04:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-22 14:04:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-22 14:04:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2021-12-22 14:04:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2021-12-22 14:04:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-22 14:04:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-22 14:04:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2021-12-22 14:04:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2021-12-22 14:04:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:04:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:04:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:04:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:04:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2021-12-22 14:04:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2021-12-22 14:04:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2021-12-22 14:04:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2021-12-22 14:04:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:04:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:04:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:04:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:04:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:04:39,775 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:04:39,778 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:04:39,872 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:39,962 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-22 14:04:39,962 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-22 14:04:42,726 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:42,729 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:42,730 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:42,732 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:42,735 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:42,736 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:42,739 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:04:43,912 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##392: assume false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume !false; [2021-12-22 14:04:43,913 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##152: assume false; [2021-12-22 14:04:43,936 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:04:43,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:04:43,946 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 14:04:43,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:04:43 BoogieIcfgContainer [2021-12-22 14:04:43,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:04:43,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:04:43,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:04:43,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:04:43,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:04:37" (1/3) ... [2021-12-22 14:04:43,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff9a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:04:43, skipping insertion in model container [2021-12-22 14:04:43,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:04:38" (2/3) ... [2021-12-22 14:04:43,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ff9a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:04:43, skipping insertion in model container [2021-12-22 14:04:43,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:04:43" (3/3) ... [2021-12-22 14:04:43,953 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-12-22 14:04:43,957 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:04:43,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:04:43,990 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:04:43,994 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 [2021-12-22 14:04:43,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:04:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 836 states have (on average 1.3181818181818181) internal successors, (1102), 856 states have internal predecessors, (1102), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) [2021-12-22 14:04:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-22 14:04:44,022 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:44,022 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] [2021-12-22 14:04:44,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:44,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:44,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1329987391, now seen corresponding path program 1 times [2021-12-22 14:04:44,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:44,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979601456] [2021-12-22 14:04:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:44,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:04:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:04:44,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:44,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979601456] [2021-12-22 14:04:44,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979601456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:44,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:44,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:04:44,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418488794] [2021-12-22 14:04:44,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:44,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:04:44,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:44,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:04:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:04:44,490 INFO L87 Difference]: Start difference. First operand has 1174 states, 836 states have (on average 1.3181818181818181) internal successors, (1102), 856 states have internal predecessors, (1102), 257 states have call successors, (257), 79 states have call predecessors, (257), 79 states have return successors, (257), 254 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-22 14:04:48,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:04:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:48,620 INFO L93 Difference]: Finished difference Result 3663 states and 5242 transitions. [2021-12-22 14:04:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-12-22 14:04:48,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:48,657 INFO L225 Difference]: With dead ends: 3663 [2021-12-22 14:04:48,659 INFO L226 Difference]: Without dead ends: 2471 [2021-12-22 14:04:48,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:48,673 INFO L933 BasicCegarLoop]: 1871 mSDtfsCounter, 2061 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 664 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 4085 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:48,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2263 Valid, 4085 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 916 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-12-22 14:04:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2021-12-22 14:04:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2274. [2021-12-22 14:04:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1620 states have (on average 1.3092592592592593) internal successors, (2121), 1653 states have internal predecessors, (2121), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-22 14:04:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3116 transitions. [2021-12-22 14:04:48,857 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3116 transitions. Word has length 23 [2021-12-22 14:04:48,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:48,858 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3116 transitions. [2021-12-22 14:04:48,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-22 14:04:48,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3116 transitions. [2021-12-22 14:04:48,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-22 14:04:48,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:48,866 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:48,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:04:48,867 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:48,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1907254522, now seen corresponding path program 1 times [2021-12-22 14:04:48,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:48,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575240882] [2021-12-22 14:04:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:48,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:48,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:04:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:04:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-22 14:04:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:04:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:04:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 14:04:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:04:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 14:04:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 14:04:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:04:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:04:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 14:04:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:04:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 14:04:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:04:49,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:49,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575240882] [2021-12-22 14:04:49,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575240882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:49,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:49,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:04:49,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304358841] [2021-12-22 14:04:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:49,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:04:49,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:49,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:04:49,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:49,110 INFO L87 Difference]: Start difference. First operand 2274 states and 3116 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 14:04:51,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:04:53,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:04:54,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:54,490 INFO L93 Difference]: Finished difference Result 4693 states and 6491 transitions. [2021-12-22 14:04:54,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:54,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 130 [2021-12-22 14:04:54,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:54,500 INFO L225 Difference]: With dead ends: 4693 [2021-12-22 14:04:54,500 INFO L226 Difference]: Without dead ends: 2468 [2021-12-22 14:04:54,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:04:54,507 INFO L933 BasicCegarLoop]: 1590 mSDtfsCounter, 611 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 586 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 5132 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:54,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 5132 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 915 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2021-12-22 14:04:54,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2021-12-22 14:04:54,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2274. [2021-12-22 14:04:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1620 states have (on average 1.308641975308642) internal successors, (2120), 1653 states have internal predecessors, (2120), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-22 14:04:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3115 transitions. [2021-12-22 14:04:54,565 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3115 transitions. Word has length 130 [2021-12-22 14:04:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:54,565 INFO L470 AbstractCegarLoop]: Abstraction has 2274 states and 3115 transitions. [2021-12-22 14:04:54,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-22 14:04:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3115 transitions. [2021-12-22 14:04:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-22 14:04:54,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:54,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:54,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:04:54,573 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:54,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:54,574 INFO L85 PathProgramCache]: Analyzing trace with hash -579514170, now seen corresponding path program 1 times [2021-12-22 14:04:54,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:54,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122439945] [2021-12-22 14:04:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:54,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:04:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:04:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 14:04:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:04:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 14:04:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:04:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-22 14:04:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:04:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:04:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 14:04:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 14:04:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 14:04:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:04:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 14:04:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 14:04:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 14:04:54,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:54,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122439945] [2021-12-22 14:04:54,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122439945] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:54,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:54,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:04:54,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619795296] [2021-12-22 14:04:54,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:54,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:04:54,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:54,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:04:54,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:04:54,825 INFO L87 Difference]: Start difference. First operand 2274 states and 3115 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 14:04:56,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:04:56,125 INFO L93 Difference]: Finished difference Result 4795 states and 6646 transitions. [2021-12-22 14:04:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:04:56,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2021-12-22 14:04:56,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:04:56,136 INFO L225 Difference]: With dead ends: 4795 [2021-12-22 14:04:56,136 INFO L226 Difference]: Without dead ends: 2572 [2021-12-22 14:04:56,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:04:56,143 INFO L933 BasicCegarLoop]: 1616 mSDtfsCounter, 368 mSDsluCounter, 2976 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4592 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:04:56,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4592 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 14:04:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2021-12-22 14:04:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2284. [2021-12-22 14:04:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1630 states have (on average 1.30920245398773) internal successors, (2134), 1663 states have internal predecessors, (2134), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-22 14:04:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3129 transitions. [2021-12-22 14:04:56,194 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3129 transitions. Word has length 137 [2021-12-22 14:04:56,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:04:56,195 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3129 transitions. [2021-12-22 14:04:56,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-22 14:04:56,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3129 transitions. [2021-12-22 14:04:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-12-22 14:04:56,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:04:56,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:04:56,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:04:56,198 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:04:56,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:04:56,199 INFO L85 PathProgramCache]: Analyzing trace with hash -399599362, now seen corresponding path program 1 times [2021-12-22 14:04:56,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:04:56,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617418153] [2021-12-22 14:04:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:04:56,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:04:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:04:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:04:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:04:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-22 14:04:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:04:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:04:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:04:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-22 14:04:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:04:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:04:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:04:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 14:04:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 14:04:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:04:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 14:04:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 14:04:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:04:56,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-22 14:04:56,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:04:56,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617418153] [2021-12-22 14:04:56,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617418153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:04:56,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:04:56,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:04:56,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658552057] [2021-12-22 14:04:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:04:56,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:04:56,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:04:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:04:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:04:56,400 INFO L87 Difference]: Start difference. First operand 2284 states and 3129 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 14:04:59,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:01,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:02,075 INFO L93 Difference]: Finished difference Result 4715 states and 6521 transitions. [2021-12-22 14:05:02,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:05:02,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2021-12-22 14:05:02,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:02,086 INFO L225 Difference]: With dead ends: 4715 [2021-12-22 14:05:02,086 INFO L226 Difference]: Without dead ends: 2478 [2021-12-22 14:05:02,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:05:02,092 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 308 mSDsluCounter, 5632 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 283 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 7205 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:02,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 7205 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1534 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2021-12-22 14:05:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2021-12-22 14:05:02,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2284. [2021-12-22 14:05:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1630 states have (on average 1.3085889570552147) internal successors, (2133), 1662 states have internal predecessors, (2133), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-22 14:05:02,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3128 transitions. [2021-12-22 14:05:02,144 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3128 transitions. Word has length 143 [2021-12-22 14:05:02,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:02,144 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3128 transitions. [2021-12-22 14:05:02,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-22 14:05:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3128 transitions. [2021-12-22 14:05:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-22 14:05:02,147 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:02,147 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:02,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:05:02,148 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:02,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash -639749755, now seen corresponding path program 1 times [2021-12-22 14:05:02,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:02,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173306365] [2021-12-22 14:05:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:02,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:05:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:05:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 14:05:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 14:05:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 14:05:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 14:05:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 14:05:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:05:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:05:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 14:05:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 14:05:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:05:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 14:05:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 14:05:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:05:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:02,412 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-22 14:05:02,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:02,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173306365] [2021-12-22 14:05:02,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173306365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:02,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:02,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 14:05:02,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059744273] [2021-12-22 14:05:02,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:02,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:05:02,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:02,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:05:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:05:02,415 INFO L87 Difference]: Start difference. First operand 2284 states and 3128 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 14:05:05,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:06,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:06,193 INFO L93 Difference]: Finished difference Result 4749 states and 6565 transitions. [2021-12-22 14:05:06,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:05:06,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 173 [2021-12-22 14:05:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:06,204 INFO L225 Difference]: With dead ends: 4749 [2021-12-22 14:05:06,204 INFO L226 Difference]: Without dead ends: 2478 [2021-12-22 14:05:06,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-22 14:05:06,211 INFO L933 BasicCegarLoop]: 1595 mSDtfsCounter, 312 mSDsluCounter, 7068 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 283 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 8663 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:06,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 8663 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1827 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-22 14:05:06,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2021-12-22 14:05:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2284. [2021-12-22 14:05:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1630 states have (on average 1.3079754601226994) internal successors, (2132), 1662 states have internal predecessors, (2132), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-22 14:05:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3127 transitions. [2021-12-22 14:05:06,284 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3127 transitions. Word has length 173 [2021-12-22 14:05:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:06,285 INFO L470 AbstractCegarLoop]: Abstraction has 2284 states and 3127 transitions. [2021-12-22 14:05:06,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 6 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-22 14:05:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3127 transitions. [2021-12-22 14:05:06,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-22 14:05:06,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:06,289 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:06,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:05:06,290 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:06,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:06,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1466388562, now seen corresponding path program 1 times [2021-12-22 14:05:06,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:06,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196762815] [2021-12-22 14:05:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:06,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 14:05:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:05:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:05:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:05:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 14:05:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-22 14:05:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:05:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 14:05:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:05:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 14:05:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 14:05:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:05:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:05:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 14:05:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:05:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-22 14:05:06,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:06,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196762815] [2021-12-22 14:05:06,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196762815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:06,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:06,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:05:06,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645044293] [2021-12-22 14:05:06,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:06,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:05:06,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:06,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:05:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:05:06,524 INFO L87 Difference]: Start difference. First operand 2284 states and 3127 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 14:05:09,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:10,482 INFO L93 Difference]: Finished difference Result 7653 states and 11236 transitions. [2021-12-22 14:05:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:05:10,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2021-12-22 14:05:10,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:10,504 INFO L225 Difference]: With dead ends: 7653 [2021-12-22 14:05:10,504 INFO L226 Difference]: Without dead ends: 5412 [2021-12-22 14:05:10,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:05:10,511 INFO L933 BasicCegarLoop]: 2883 mSDtfsCounter, 2499 mSDsluCounter, 5887 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 914 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 8770 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:10,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2811 Valid, 8770 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 1307 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-22 14:05:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5412 states. [2021-12-22 14:05:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5412 to 2286. [2021-12-22 14:05:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2286 states, 1632 states have (on average 1.3075980392156863) internal successors, (2134), 1664 states have internal predecessors, (2134), 497 states have call successors, (497), 157 states have call predecessors, (497), 156 states have return successors, (498), 489 states have call predecessors, (498), 495 states have call successors, (498) [2021-12-22 14:05:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 3129 transitions. [2021-12-22 14:05:10,604 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 3129 transitions. Word has length 175 [2021-12-22 14:05:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:10,604 INFO L470 AbstractCegarLoop]: Abstraction has 2286 states and 3129 transitions. [2021-12-22 14:05:10,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-22 14:05:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 3129 transitions. [2021-12-22 14:05:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-22 14:05:10,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:10,608 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:10,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:05:10,608 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:10,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash 355077106, now seen corresponding path program 1 times [2021-12-22 14:05:10,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:10,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953722282] [2021-12-22 14:05:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:10,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:05:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 14:05:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:05:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:05:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:05:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:05:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:05:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 14:05:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 14:05:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 14:05:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:05:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:05:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:05:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 14:05:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:05:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 14:05:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 14:05:10,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:10,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953722282] [2021-12-22 14:05:10,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953722282] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:05:10,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579958167] [2021-12-22 14:05:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:10,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:10,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:05:10,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:05:11,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:05:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:11,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-22 14:05:11,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:05:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-22 14:05:11,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:05:11,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579958167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:11,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:05:11,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-22 14:05:11,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488493643] [2021-12-22 14:05:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:11,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:05:11,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:11,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:05:11,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:05:11,854 INFO L87 Difference]: Start difference. First operand 2286 states and 3129 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-22 14:05:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:12,000 INFO L93 Difference]: Finished difference Result 4557 states and 6239 transitions. [2021-12-22 14:05:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 14:05:12,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 177 [2021-12-22 14:05:12,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:12,008 INFO L225 Difference]: With dead ends: 4557 [2021-12-22 14:05:12,008 INFO L226 Difference]: Without dead ends: 2264 [2021-12-22 14:05:12,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2021-12-22 14:05:12,014 INFO L933 BasicCegarLoop]: 1592 mSDtfsCounter, 15 mSDsluCounter, 7932 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 9524 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:12,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 9524 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:05:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2021-12-22 14:05:12,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2264. [2021-12-22 14:05:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1619 states have (on average 1.3069796170475603) internal successors, (2116), 1650 states have internal predecessors, (2116), 491 states have call successors, (491), 154 states have call predecessors, (491), 153 states have return successors, (492), 483 states have call predecessors, (492), 489 states have call successors, (492) [2021-12-22 14:05:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3099 transitions. [2021-12-22 14:05:12,063 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3099 transitions. Word has length 177 [2021-12-22 14:05:12,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:12,063 INFO L470 AbstractCegarLoop]: Abstraction has 2264 states and 3099 transitions. [2021-12-22 14:05:12,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2021-12-22 14:05:12,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3099 transitions. [2021-12-22 14:05:12,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-12-22 14:05:12,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:12,067 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:12,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 14:05:12,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:12,288 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:12,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1012368946, now seen corresponding path program 1 times [2021-12-22 14:05:12,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:12,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213047404] [2021-12-22 14:05:12,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:12,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 14:05:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:05:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:05:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 14:05:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 14:05:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 14:05:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 14:05:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:05:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 14:05:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:05:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 14:05:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:05:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:05:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 14:05:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-22 14:05:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-22 14:05:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-22 14:05:12,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:12,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213047404] [2021-12-22 14:05:12,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213047404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:12,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:12,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:05:12,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635437453] [2021-12-22 14:05:12,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:12,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:05:12,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:12,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:05:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:05:12,544 INFO L87 Difference]: Start difference. First operand 2264 states and 3099 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 14:05:13,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:13,694 INFO L93 Difference]: Finished difference Result 4743 states and 6547 transitions. [2021-12-22 14:05:13,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:05:13,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 190 [2021-12-22 14:05:13,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:13,705 INFO L225 Difference]: With dead ends: 4743 [2021-12-22 14:05:13,705 INFO L226 Difference]: Without dead ends: 2510 [2021-12-22 14:05:13,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:05:13,710 INFO L933 BasicCegarLoop]: 1593 mSDtfsCounter, 1959 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:13,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2118 Valid, 2462 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 14:05:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2021-12-22 14:05:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2299. [2021-12-22 14:05:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1642 states have (on average 1.3002436053593178) internal successors, (2135), 1673 states have internal predecessors, (2135), 496 states have call successors, (496), 161 states have call predecessors, (496), 160 states have return successors, (497), 488 states have call predecessors, (497), 494 states have call successors, (497) [2021-12-22 14:05:13,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3128 transitions. [2021-12-22 14:05:13,837 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3128 transitions. Word has length 190 [2021-12-22 14:05:13,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:13,838 INFO L470 AbstractCegarLoop]: Abstraction has 2299 states and 3128 transitions. [2021-12-22 14:05:13,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 14:05:13,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3128 transitions. [2021-12-22 14:05:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-22 14:05:13,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:13,841 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:13,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 14:05:13,841 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:13,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:13,842 INFO L85 PathProgramCache]: Analyzing trace with hash -717257111, now seen corresponding path program 1 times [2021-12-22 14:05:13,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:13,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869206470] [2021-12-22 14:05:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:13,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 14:05:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:05:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:05:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-22 14:05:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 14:05:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 14:05:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 14:05:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:05:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-22 14:05:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:05:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:05:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 14:05:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 14:05:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-22 14:05:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:05:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 14:05:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 14:05:14,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:14,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869206470] [2021-12-22 14:05:14,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869206470] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:05:14,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729890070] [2021-12-22 14:05:14,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:14,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:05:14,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:05:14,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:05:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:14,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-22 14:05:14,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:05:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-22 14:05:15,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:05:15,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729890070] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:15,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:05:15,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-22 14:05:15,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105098592] [2021-12-22 14:05:15,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:15,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:05:15,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:15,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:05:15,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:05:15,025 INFO L87 Difference]: Start difference. First operand 2299 states and 3128 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 14:05:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:15,172 INFO L93 Difference]: Finished difference Result 4545 states and 6206 transitions. [2021-12-22 14:05:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:05:15,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 191 [2021-12-22 14:05:15,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:15,192 INFO L225 Difference]: With dead ends: 4545 [2021-12-22 14:05:15,192 INFO L226 Difference]: Without dead ends: 2309 [2021-12-22 14:05:15,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-22 14:05:15,198 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 21 mSDsluCounter, 4708 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 6281 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:15,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 6281 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:05:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-12-22 14:05:15,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2307. [2021-12-22 14:05:15,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1649 states have (on average 1.2989690721649485) internal successors, (2142), 1681 states have internal predecessors, (2142), 496 states have call successors, (496), 161 states have call predecessors, (496), 161 states have return successors, (499), 488 states have call predecessors, (499), 494 states have call successors, (499) [2021-12-22 14:05:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3137 transitions. [2021-12-22 14:05:15,278 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3137 transitions. Word has length 191 [2021-12-22 14:05:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:15,279 INFO L470 AbstractCegarLoop]: Abstraction has 2307 states and 3137 transitions. [2021-12-22 14:05:15,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-22 14:05:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3137 transitions. [2021-12-22 14:05:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-22 14:05:15,281 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:15,281 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:15,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:05:15,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-22 14:05:15,502 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:15,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash -289792324, now seen corresponding path program 1 times [2021-12-22 14:05:15,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:15,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608429487] [2021-12-22 14:05:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:15,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 14:05:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:05:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:05:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-22 14:05:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 14:05:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 14:05:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 14:05:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 14:05:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 14:05:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:05:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:05:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-22 14:05:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 14:05:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-22 14:05:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 14:05:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-22 14:05:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 14:05:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 14:05:15,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:15,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608429487] [2021-12-22 14:05:15,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608429487] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:05:15,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983336158] [2021-12-22 14:05:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:15,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:15,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:05:15,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:05:15,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 14:05:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:16,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 54 conjunts are in the unsatisfiable core [2021-12-22 14:05:16,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:05:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-22 14:05:16,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:05:16,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983336158] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:16,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:05:16,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 18 [2021-12-22 14:05:16,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477034693] [2021-12-22 14:05:16,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:16,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 14:05:16,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 14:05:16,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-12-22 14:05:16,897 INFO L87 Difference]: Start difference. First operand 2307 states and 3137 transitions. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 14:05:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:17,188 INFO L93 Difference]: Finished difference Result 4605 states and 6291 transitions. [2021-12-22 14:05:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-22 14:05:17,189 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) Word has length 197 [2021-12-22 14:05:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:17,196 INFO L225 Difference]: With dead ends: 4605 [2021-12-22 14:05:17,196 INFO L226 Difference]: Without dead ends: 2333 [2021-12-22 14:05:17,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-12-22 14:05:17,202 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 65 mSDsluCounter, 14195 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 15777 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:17,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 15777 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:05:17,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2021-12-22 14:05:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2309. [2021-12-22 14:05:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 1650 states have (on average 1.2987878787878788) internal successors, (2143), 1683 states have internal predecessors, (2143), 496 states have call successors, (496), 161 states have call predecessors, (496), 162 states have return successors, (500), 488 states have call predecessors, (500), 494 states have call successors, (500) [2021-12-22 14:05:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3139 transitions. [2021-12-22 14:05:17,274 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3139 transitions. Word has length 197 [2021-12-22 14:05:17,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:17,274 INFO L470 AbstractCegarLoop]: Abstraction has 2309 states and 3139 transitions. [2021-12-22 14:05:17,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 7 states have internal predecessors, (136), 2 states have call successors, (28), 2 states have call predecessors, (28), 6 states have return successors, (24), 6 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-22 14:05:17,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3139 transitions. [2021-12-22 14:05:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-22 14:05:17,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:17,278 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:17,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 14:05:17,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:17,491 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1264891567, now seen corresponding path program 1 times [2021-12-22 14:05:17,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:17,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549839155] [2021-12-22 14:05:17,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:17,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:05:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:05:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:05:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 14:05:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 14:05:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:05:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:05:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 14:05:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-22 14:05:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:05:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 14:05:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-22 14:05:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 14:05:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-22 14:05:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 14:05:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 14:05:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 14:05:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-22 14:05:17,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549839155] [2021-12-22 14:05:17,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549839155] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:05:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575520025] [2021-12-22 14:05:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:17,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:17,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:05:17,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:05:17,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 14:05:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:18,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 3253 conjuncts, 106 conjunts are in the unsatisfiable core [2021-12-22 14:05:18,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:05:18,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:18,436 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:18,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:18,445 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:18,505 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:18,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:18,772 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:18,772 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:18,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-22 14:05:19,560 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:19,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:19,710 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:19,716 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:19,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-22 14:05:20,221 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-22 14:05:20,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:20,579 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:20,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:20,584 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:21,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-22 14:05:21,300 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-22 14:05:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 14:05:21,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:05:23,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575520025] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:05:23,042 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-22 14:05:23,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 23] total 32 [2021-12-22 14:05:23,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336329769] [2021-12-22 14:05:23,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-22 14:05:23,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-22 14:05:23,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:23,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-22 14:05:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1296, Unknown=6, NotChecked=0, Total=1482 [2021-12-22 14:05:23,043 INFO L87 Difference]: Start difference. First operand 2309 states and 3139 transitions. Second operand has 32 states, 32 states have (on average 7.8125) internal successors, (250), 24 states have internal predecessors, (250), 9 states have call successors, (56), 10 states have call predecessors, (56), 13 states have return successors, (50), 13 states have call predecessors, (50), 8 states have call successors, (50) [2021-12-22 14:05:27,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:28,314 INFO L93 Difference]: Finished difference Result 4812 states and 6601 transitions. [2021-12-22 14:05:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-22 14:05:28,315 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.8125) internal successors, (250), 24 states have internal predecessors, (250), 9 states have call successors, (56), 10 states have call predecessors, (56), 13 states have return successors, (50), 13 states have call predecessors, (50), 8 states have call successors, (50) Word has length 201 [2021-12-22 14:05:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:28,324 INFO L225 Difference]: With dead ends: 4812 [2021-12-22 14:05:28,325 INFO L226 Difference]: Without dead ends: 2506 [2021-12-22 14:05:28,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=412, Invalid=2774, Unknown=6, NotChecked=0, Total=3192 [2021-12-22 14:05:28,330 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 398 mSDsluCounter, 13010 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 353 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 14563 SdHoareTripleChecker+Invalid, 4590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1108 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:28,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 14563 Invalid, 4590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 3128 Invalid, 1 Unknown, 1108 Unchecked, 4.5s Time] [2021-12-22 14:05:28,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-12-22 14:05:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2307. [2021-12-22 14:05:28,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1649 states have (on average 1.2983626440266829) internal successors, (2141), 1681 states have internal predecessors, (2141), 496 states have call successors, (496), 161 states have call predecessors, (496), 161 states have return successors, (499), 488 states have call predecessors, (499), 494 states have call successors, (499) [2021-12-22 14:05:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3136 transitions. [2021-12-22 14:05:28,434 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3136 transitions. Word has length 201 [2021-12-22 14:05:28,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:28,435 INFO L470 AbstractCegarLoop]: Abstraction has 2307 states and 3136 transitions. [2021-12-22 14:05:28,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.8125) internal successors, (250), 24 states have internal predecessors, (250), 9 states have call successors, (56), 10 states have call predecessors, (56), 13 states have return successors, (50), 13 states have call predecessors, (50), 8 states have call successors, (50) [2021-12-22 14:05:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3136 transitions. [2021-12-22 14:05:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-22 14:05:28,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:28,439 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:28,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 14:05:28,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:28,654 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 631681022, now seen corresponding path program 2 times [2021-12-22 14:05:28,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:28,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711089213] [2021-12-22 14:05:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:28,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:28,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 14:05:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:05:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:05:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:05:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-22 14:05:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-22 14:05:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-22 14:05:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:05:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-22 14:05:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-22 14:05:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-22 14:05:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-22 14:05:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:05:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-22 14:05:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 14:05:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-22 14:05:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 14:05:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-22 14:05:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-22 14:05:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:29,192 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-22 14:05:29,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:29,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711089213] [2021-12-22 14:05:29,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711089213] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:05:29,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455044831] [2021-12-22 14:05:29,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 14:05:29,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:05:29,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:05:29,195 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:05:29,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 14:05:30,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 14:05:30,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 14:05:30,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 106 conjunts are in the unsatisfiable core [2021-12-22 14:05:30,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:05:30,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:30,312 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:30,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:30,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:30,376 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:30,376 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:30,568 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-22 14:05:30,758 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:30,758 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:30,898 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:30,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:31,071 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-22 14:05:31,683 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-22 14:05:31,684 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-22 14:05:31,863 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:31,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:31,927 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-22 14:05:32,463 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-12-22 14:05:32,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:32,813 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:32,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-22 14:05:32,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-12-22 14:05:33,464 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-22 14:05:33,468 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7