./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.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 48ae22c8c2494b96697ffe1db529f00fa4b52cdca22138b3bf77c84445f7f2f5 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 01:38:07,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 01:38:07,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 01:38:07,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 01:38:07,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 01:38:07,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 01:38:07,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 01:38:07,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 01:38:07,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 01:38:07,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 01:38:07,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 01:38:07,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 01:38:07,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 01:38:07,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 01:38:07,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 01:38:07,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 01:38:07,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 01:38:07,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 01:38:07,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 01:38:07,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 01:38:07,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 01:38:07,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 01:38:07,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 01:38:07,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 01:38:07,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 01:38:07,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 01:38:07,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 01:38:07,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 01:38:07,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 01:38:07,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 01:38:07,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 01:38:07,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 01:38:07,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 01:38:07,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 01:38:07,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 01:38:07,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 01:38:07,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 01:38:07,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 01:38:07,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 01:38:07,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 01:38:07,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 01:38:07,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 01:38:07,500 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 01:38:07,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 01:38:07,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 01:38:07,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 01:38:07,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 01:38:07,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 01:38:07,503 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 01:38:07,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 01:38:07,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 01:38:07,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 01:38:07,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 01:38:07,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 01:38:07,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 01:38:07,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 01:38:07,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 01:38:07,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 01:38:07,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 01:38:07,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 01:38:07,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 01:38:07,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 01:38:07,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 01:38:07,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 01:38:07,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 01:38:07,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48ae22c8c2494b96697ffe1db529f00fa4b52cdca22138b3bf77c84445f7f2f5 [2021-11-03 01:38:07,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 01:38:07,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 01:38:07,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 01:38:07,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 01:38:07,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 01:38:07,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-03 01:38:07,759 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295d4db37/7d3eb6d73cdf496091b64a261839f1b5/FLAGb57ff4541 [2021-11-03 01:38:08,574 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 01:38:08,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-03 01:38:08,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295d4db37/7d3eb6d73cdf496091b64a261839f1b5/FLAGb57ff4541 [2021-11-03 01:38:08,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295d4db37/7d3eb6d73cdf496091b64a261839f1b5 [2021-11-03 01:38:08,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 01:38:08,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 01:38:08,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 01:38:08,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 01:38:08,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 01:38:08,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:08" (1/1) ... [2021-11-03 01:38:08,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d64f75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:08, skipping insertion in model container [2021-11-03 01:38:08,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:08" (1/1) ... [2021-11-03 01:38:08,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 01:38:08,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 01:38:15,159 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[788938,788951] [2021-11-03 01:38:15,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 01:38:15,279 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 01:38:15,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[788938,788951] [2021-11-03 01:38:15,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 01:38:16,223 INFO L208 MainTranslator]: Completed translation [2021-11-03 01:38:16,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16 WrapperNode [2021-11-03 01:38:16,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 01:38:16,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 01:38:16,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 01:38:16,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 01:38:16,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:16,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:17,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 01:38:17,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 01:38:17,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 01:38:17,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 01:38:17,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:17,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:17,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:17,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:18,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:18,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:18,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:18,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 01:38:18,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 01:38:18,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 01:38:18,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 01:38:18,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (1/1) ... [2021-11-03 01:38:18,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 01:38:18,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 01:38:18,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 01:38:18,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 01:38:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-03 01:38:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-03 01:38:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-03 01:38:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-03 01:38:18,952 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-03 01:38:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-03 01:38:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-03 01:38:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-03 01:38:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_irq_register_19_2 [2021-11-03 01:38:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_irq_register_19_2 [2021-11-03 01:38:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 01:38:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 01:38:18,953 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-03 01:38:18,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-03 01:38:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 01:38:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-03 01:38:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-03 01:38:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-03 01:38:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-03 01:38:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 01:38:18,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 01:38:18,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 01:38:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-03 01:38:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-03 01:38:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-03 01:38:18,955 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-03 01:38:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 01:38:18,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 01:38:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-03 01:38:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-03 01:38:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-03 01:38:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-03 01:38:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_instance_handler_2_5 [2021-11-03 01:38:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_instance_handler_2_5 [2021-11-03 01:38:18,956 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-03 01:38:18,956 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-03 01:38:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 01:38:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-03 01:38:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-03 01:38:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-03 01:38:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-03 01:38:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-03 01:38:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-03 01:38:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-03 01:38:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-03 01:38:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-03 01:38:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-03 01:38:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 01:38:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-03 01:38:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-03 01:38:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 01:38:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 01:38:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-03 01:38:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-03 01:38:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-03 01:38:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-03 01:38:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-03 01:38:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-03 01:38:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-03 01:38:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-03 01:38:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-03 01:38:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-03 01:38:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-03 01:38:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-03 01:38:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-03 01:38:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-03 01:38:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-03 01:38:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-03 01:38:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 01:38:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-03 01:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-03 01:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-03 01:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-03 01:38:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-03 01:38:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 01:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 01:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-03 01:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-03 01:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-03 01:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-03 01:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-03 01:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-03 01:38:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-03 01:38:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-03 01:38:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_18 [2021-11-03 01:38:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_18 [2021-11-03 01:38:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2021-11-03 01:38:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2021-11-03 01:38:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_16 [2021-11-03 01:38:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_16 [2021-11-03 01:38:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-03 01:38:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-03 01:38:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-03 01:38:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-03 01:38:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 01:38:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-03 01:38:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-03 01:38:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-03 01:38:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-03 01:39:30,401 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L13291: #t~ret4710 := main_#res; [2021-11-03 01:39:30,401 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_21_returnLabel: main_#res := 0; [2021-11-03 01:39:30,402 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_7_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_7_~#ldv_7_resource_pm_message~0.base, ldv_pci_pci_instance_7_~#ldv_7_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_7_~#ldv_7_resource_pm_message~0.base, ldv_pci_pci_instance_7_~#ldv_7_resource_pm_message~0.offset; [2021-11-03 01:39:30,402 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 01:39:30,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 01:39:30,448 INFO L299 CfgBuilder]: Removed 6808 assume(true) statements. [2021-11-03 01:39:30,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:39:30 BoogieIcfgContainer [2021-11-03 01:39:30,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 01:39:30,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 01:39:30,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 01:39:30,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 01:39:30,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:38:08" (1/3) ... [2021-11-03 01:39:30,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9e2bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:39:30, skipping insertion in model container [2021-11-03 01:39:30,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:16" (2/3) ... [2021-11-03 01:39:30,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9e2bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:39:30, skipping insertion in model container [2021-11-03 01:39:30,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:39:30" (3/3) ... [2021-11-03 01:39:30,462 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-03 01:39:30,466 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 01:39:30,466 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 01:39:30,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 01:39:30,530 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 01:39:30,531 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 01:39:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 6471 states, 6307 states have (on average 1.389884255589028) internal successors, (8766), 6317 states have internal predecessors, (8766), 118 states have call successors, (118), 42 states have call predecessors, (118), 42 states have return successors, (118), 116 states have call predecessors, (118), 118 states have call successors, (118) [2021-11-03 01:39:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-03 01:39:30,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:39:30,609 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] [2021-11-03 01:39:30,610 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 01:39:30,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:39:30,617 INFO L85 PathProgramCache]: Analyzing trace with hash 911916535, now seen corresponding path program 1 times [2021-11-03 01:39:30,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:39:30,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281100798] [2021-11-03 01:39:30,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:39:30,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:39:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:39:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 01:39:31,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:39:31,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281100798] [2021-11-03 01:39:31,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281100798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:39:31,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:39:31,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:39:31,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116560830] [2021-11-03 01:39:31,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 01:39:31,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:39:31,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 01:39:31,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 01:39:31,971 INFO L87 Difference]: Start difference. First operand has 6471 states, 6307 states have (on average 1.389884255589028) internal successors, (8766), 6317 states have internal predecessors, (8766), 118 states have call successors, (118), 42 states have call predecessors, (118), 42 states have return successors, (118), 116 states have call predecessors, (118), 118 states have call successors, (118) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 01:39:34,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:39:45,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:39:50,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-11-03 01:40:43,612 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:42:07,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:42:09,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:42:13,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:42:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:42:35,356 INFO L93 Difference]: Finished difference Result 16827 states and 23715 transitions. [2021-11-03 01:42:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 01:42:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-03 01:42:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:42:35,441 INFO L225 Difference]: With dead ends: 16827 [2021-11-03 01:42:35,441 INFO L226 Difference]: Without dead ends: 10156 [2021-11-03 01:42:35,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.89ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 01:42:35,494 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 8941 mSDsluCounter, 14997 mSDsCounter, 0 mSdLazyCounter, 23202 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 173018.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8943 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 23212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 236.12ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23202 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 181201.34ms IncrementalHoareTripleChecker+Time [2021-11-03 01:42:35,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8943 Valid, 1224 Invalid, 23212 Unknown, 0 Unchecked, 236.12ms Time], IncrementalHoareTripleChecker [4 Valid, 23202 Invalid, 6 Unknown, 0 Unchecked, 181201.34ms Time] [2021-11-03 01:42:35,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10156 states. [2021-11-03 01:42:35,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10156 to 10141. [2021-11-03 01:42:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10141 states, 9859 states have (on average 1.3835074551171518) internal successors, (13640), 9874 states have internal predecessors, (13640), 196 states have call successors, (196), 84 states have call predecessors, (196), 84 states have return successors, (198), 192 states have call predecessors, (198), 196 states have call successors, (198) [2021-11-03 01:42:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10141 states to 10141 states and 14034 transitions. [2021-11-03 01:42:35,850 INFO L78 Accepts]: Start accepts. Automaton has 10141 states and 14034 transitions. Word has length 21 [2021-11-03 01:42:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:42:35,851 INFO L470 AbstractCegarLoop]: Abstraction has 10141 states and 14034 transitions. [2021-11-03 01:42:35,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 01:42:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 10141 states and 14034 transitions. [2021-11-03 01:42:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 01:42:35,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:42:35,853 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] [2021-11-03 01:42:35,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 01:42:35,853 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 01:42:35,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:42:35,856 INFO L85 PathProgramCache]: Analyzing trace with hash 179016794, now seen corresponding path program 1 times [2021-11-03 01:42:35,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:42:35,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29159287] [2021-11-03 01:42:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:42:35,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:42:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:42:36,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 01:42:36,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:42:36,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29159287] [2021-11-03 01:42:36,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29159287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:42:36,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:42:36,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:42:36,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998589659] [2021-11-03 01:42:36,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 01:42:36,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:42:36,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 01:42:36,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 01:42:36,831 INFO L87 Difference]: Start difference. First operand 10141 states and 14034 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 01:42:39,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:42:50,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:43:35,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:44:22,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:45:25,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:45:27,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:45:31,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:46:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:46:18,419 INFO L93 Difference]: Finished difference Result 20193 states and 28351 transitions. [2021-11-03 01:46:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 01:46:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-03 01:46:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:46:18,538 INFO L225 Difference]: With dead ends: 20193 [2021-11-03 01:46:18,539 INFO L226 Difference]: Without dead ends: 18716 [2021-11-03 01:46:18,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 128.49ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 01:46:18,563 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 8666 mSDsluCounter, 17840 mSDsCounter, 0 mSdLazyCounter, 25789 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 209584.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8666 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 25808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 232.36ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25789 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 219542.57ms IncrementalHoareTripleChecker+Time [2021-11-03 01:46:18,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8666 Valid, 1262 Invalid, 25808 Unknown, 0 Unchecked, 232.36ms Time], IncrementalHoareTripleChecker [15 Valid, 25789 Invalid, 4 Unknown, 0 Unchecked, 219542.57ms Time] [2021-11-03 01:46:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18716 states. [2021-11-03 01:46:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18716 to 18629. [2021-11-03 01:46:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18629 states, 18074 states have (on average 1.3862454354321123) internal successors, (25055), 18103 states have internal predecessors, (25055), 390 states have call successors, (390), 168 states have call predecessors, (390), 164 states have return successors, (774), 375 states have call predecessors, (774), 390 states have call successors, (774) [2021-11-03 01:46:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18629 states to 18629 states and 26219 transitions. [2021-11-03 01:46:19,017 INFO L78 Accepts]: Start accepts. Automaton has 18629 states and 26219 transitions. Word has length 23 [2021-11-03 01:46:19,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:46:19,017 INFO L470 AbstractCegarLoop]: Abstraction has 18629 states and 26219 transitions. [2021-11-03 01:46:19,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 01:46:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand 18629 states and 26219 transitions. [2021-11-03 01:46:19,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-03 01:46:19,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:46:19,117 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 01:46:19,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 01:46:19,118 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 01:46:19,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:46:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1547580522, now seen corresponding path program 1 times [2021-11-03 01:46:19,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:46:19,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130588274] [2021-11-03 01:46:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:46:19,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:46:19,637 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 01:46:19,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [647380533] [2021-11-03 01:46:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:46:19,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 01:46:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 01:46:19,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 01:46:19,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 01:46:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:46:24,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 20256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 01:46:24,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 01:46:26,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 01:46:26,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 01:46:26,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:46:26,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130588274] [2021-11-03 01:46:26,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 01:46:26,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647380533] [2021-11-03 01:46:26,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647380533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:46:26,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:46:26,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 01:46:26,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340464450] [2021-11-03 01:46:26,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 01:46:26,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:46:26,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 01:46:26,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:46:26,885 INFO L87 Difference]: Start difference. First operand 18629 states and 26219 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-03 01:46:29,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:46:39,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:47:40,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:48:01,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:48:46,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 01:48:46,543 INFO L93 Difference]: Finished difference Result 37237 states and 53195 transitions. [2021-11-03 01:48:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 01:48:46,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 353 [2021-11-03 01:48:46,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 01:48:46,636 INFO L225 Difference]: With dead ends: 37237 [2021-11-03 01:48:46,636 INFO L226 Difference]: Without dead ends: 18641 [2021-11-03 01:48:46,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 01:48:46,739 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 2 mSDsluCounter, 8584 mSDsCounter, 0 mSdLazyCounter, 16705 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132073.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 16709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.46ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16705 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138543.64ms IncrementalHoareTripleChecker+Time [2021-11-03 01:48:46,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 472 Invalid, 16709 Unknown, 0 Unchecked, 87.46ms Time], IncrementalHoareTripleChecker [0 Valid, 16705 Invalid, 4 Unknown, 0 Unchecked, 138543.64ms Time] [2021-11-03 01:48:46,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18641 states. [2021-11-03 01:48:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18641 to 18641. [2021-11-03 01:48:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18641 states, 18082 states have (on average 1.3860745492755226) internal successors, (25063), 18115 states have internal predecessors, (25063), 390 states have call successors, (390), 168 states have call predecessors, (390), 168 states have return successors, (782), 375 states have call predecessors, (782), 390 states have call successors, (782) [2021-11-03 01:48:47,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18641 states to 18641 states and 26235 transitions. [2021-11-03 01:48:47,104 INFO L78 Accepts]: Start accepts. Automaton has 18641 states and 26235 transitions. Word has length 353 [2021-11-03 01:48:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 01:48:47,106 INFO L470 AbstractCegarLoop]: Abstraction has 18641 states and 26235 transitions. [2021-11-03 01:48:47,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-03 01:48:47,107 INFO L276 IsEmpty]: Start isEmpty. Operand 18641 states and 26235 transitions. [2021-11-03 01:48:47,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-03 01:48:47,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 01:48:47,164 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 01:48:47,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 01:48:47,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 01:48:47,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 01:48:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 01:48:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1831566060, now seen corresponding path program 1 times [2021-11-03 01:48:47,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 01:48:47,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916204269] [2021-11-03 01:48:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:48:47,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 01:48:47,860 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 01:48:47,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331585166] [2021-11-03 01:48:47,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 01:48:47,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 01:48:47,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 01:48:47,862 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) [2021-11-03 01:48:47,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 01:48:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 01:48:53,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 20255 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 01:48:53,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 01:48:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 01:48:54,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 01:48:54,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 01:48:54,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916204269] [2021-11-03 01:48:54,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 01:48:54,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331585166] [2021-11-03 01:48:54,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331585166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 01:48:54,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 01:48:54,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 01:48:54,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176225949] [2021-11-03 01:48:54,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 01:48:54,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 01:48:54,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 01:48:54,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 01:48:54,903 INFO L87 Difference]: Start difference. First operand 18641 states and 26235 transitions. Second operand has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 1 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-03 01:48:57,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:49:16,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:51:13,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 01:51:55,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15