./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 13:43:38,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:43:38,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:43:38,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:43:38,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:43:38,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:43:38,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:43:38,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:43:38,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:43:38,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:43:38,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:43:38,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:43:38,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:43:38,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:43:38,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:43:38,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:43:38,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:43:38,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:43:38,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:43:38,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:43:38,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:43:38,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:43:38,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:43:38,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:43:38,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:43:38,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:43:38,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:43:38,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:43:38,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:43:38,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:43:38,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:43:38,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:43:38,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:43:38,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:43:38,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:43:38,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:43:38,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:43:38,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:43:38,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:43:38,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:43:38,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:43:38,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 13:43:38,612 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:43:38,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:43:38,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:43:38,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:43:38,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:43:38,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:43:38,614 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:43:38,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:43:38,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 13:43:38,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:43:38,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:43:38,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:43:38,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:43:38,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:43:38,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:43:38,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:43:38,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:43:38,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:43:38,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:43:38,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:43:38,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:43:38,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:43:38,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:43:38,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 13:43:38,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 13:43:38,618 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:43:38,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:43:38,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:43:38,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:43:38,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-06 13:43:38,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:43:38,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:43:38,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:43:38,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:43:38,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:43:38,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-06 13:43:38,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97e6c2d9/63da421e56dd4e538960eacd12d2440a/FLAG3d864ff93 [2021-11-06 13:43:39,412 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:43:39,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-06 13:43:39,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97e6c2d9/63da421e56dd4e538960eacd12d2440a/FLAG3d864ff93 [2021-11-06 13:43:39,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97e6c2d9/63da421e56dd4e538960eacd12d2440a [2021-11-06 13:43:39,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:43:39,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:43:39,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:43:39,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:43:39,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:43:39,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:43:39" (1/1) ... [2021-11-06 13:43:39,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552916fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:39, skipping insertion in model container [2021-11-06 13:43:39,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:43:39" (1/1) ... [2021-11-06 13:43:39,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:43:39,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:43:40,751 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-06 13:43:40,808 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-06 13:43:40,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:43:40,834 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:43:40,996 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-06 13:43:41,016 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-06 13:43:41,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:43:41,055 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:43:41,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41 WrapperNode [2021-11-06 13:43:41,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:43:41,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:43:41,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:43:41,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:43:41,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:43:41,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:43:41,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:43:41,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:43:41,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:43:41,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:43:41,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:43:41,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:43:41,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (1/1) ... [2021-11-06 13:43:41,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:43:41,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:43:41,348 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) [2021-11-06 13:43:41,370 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 [2021-11-06 13:43:41,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 13:43:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 13:43:41,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 13:43:41,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:43:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:43:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 13:43:41,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:43:41,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:43:48,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:43:48,602 INFO L299 CfgBuilder]: Removed 182 assume(true) statements. [2021-11-06 13:43:48,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:48 BoogieIcfgContainer [2021-11-06 13:43:48,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:43:48,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:43:48,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:43:48,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:43:48,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:43:39" (1/3) ... [2021-11-06 13:43:48,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f77651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:43:48, skipping insertion in model container [2021-11-06 13:43:48,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:43:41" (2/3) ... [2021-11-06 13:43:48,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f77651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:43:48, skipping insertion in model container [2021-11-06 13:43:48,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:48" (3/3) ... [2021-11-06 13:43:48,610 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-06 13:43:48,614 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:43:48,614 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-06 13:43:48,653 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:43:48,658 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 [2021-11-06 13:43:48,658 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-06 13:43:48,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) [2021-11-06 13:43:48,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-06 13:43:48,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:48,699 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:48,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:48,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:48,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1013367014, now seen corresponding path program 1 times [2021-11-06 13:43:48,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:48,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770336836] [2021-11-06 13:43:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:48,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:49,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:49,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770336836] [2021-11-06 13:43:49,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770336836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:49,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:49,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:49,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737179608] [2021-11-06 13:43:49,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:49,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:49,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:49,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:49,112 INFO L87 Difference]: Start difference. First operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-06 13:43:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:49,244 INFO L93 Difference]: Finished difference Result 576 states and 851 transitions. [2021-11-06 13:43:49,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:49,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-06 13:43:49,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:49,256 INFO L225 Difference]: With dead ends: 576 [2021-11-06 13:43:49,256 INFO L226 Difference]: Without dead ends: 325 [2021-11-06 13:43:49,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-06 13:43:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 306. [2021-11-06 13:43:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 295 states have (on average 1.5186440677966102) internal successors, (448), 305 states have internal predecessors, (448), 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) [2021-11-06 13:43:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 448 transitions. [2021-11-06 13:43:49,299 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 448 transitions. Word has length 14 [2021-11-06 13:43:49,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:49,300 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 448 transitions. [2021-11-06 13:43:49,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-06 13:43:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 448 transitions. [2021-11-06 13:43:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-06 13:43:49,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:49,301 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:49,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 13:43:49,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1696174329, now seen corresponding path program 1 times [2021-11-06 13:43:49,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:49,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749376843] [2021-11-06 13:43:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:49,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:49,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:49,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749376843] [2021-11-06 13:43:49,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749376843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:49,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:49,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:49,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285609796] [2021-11-06 13:43:49,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:49,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:49,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:49,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:49,464 INFO L87 Difference]: Start difference. First operand 306 states and 448 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-06 13:43:51,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:51,658 INFO L93 Difference]: Finished difference Result 874 states and 1296 transitions. [2021-11-06 13:43:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-06 13:43:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:51,664 INFO L225 Difference]: With dead ends: 874 [2021-11-06 13:43:51,664 INFO L226 Difference]: Without dead ends: 571 [2021-11-06 13:43:51,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-11-06 13:43:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 559. [2021-11-06 13:43:51,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 548 states have (on average 1.531021897810219) internal successors, (839), 558 states have internal predecessors, (839), 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) [2021-11-06 13:43:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 839 transitions. [2021-11-06 13:43:51,709 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 839 transitions. Word has length 15 [2021-11-06 13:43:51,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:51,709 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 839 transitions. [2021-11-06 13:43:51,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-11-06 13:43:51,710 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 839 transitions. [2021-11-06 13:43:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:43:51,711 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:51,711 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:51,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 13:43:51,712 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:51,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:51,720 INFO L85 PathProgramCache]: Analyzing trace with hash -724212375, now seen corresponding path program 1 times [2021-11-06 13:43:51,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:51,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045855584] [2021-11-06 13:43:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:51,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:51,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:51,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045855584] [2021-11-06 13:43:51,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045855584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:51,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:51,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:51,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600026217] [2021-11-06 13:43:51,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:51,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:51,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:51,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:51,902 INFO L87 Difference]: Start difference. First operand 559 states and 839 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 13:43:51,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:51,961 INFO L93 Difference]: Finished difference Result 589 states and 867 transitions. [2021-11-06 13:43:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-06 13:43:51,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:51,963 INFO L225 Difference]: With dead ends: 589 [2021-11-06 13:43:51,963 INFO L226 Difference]: Without dead ends: 574 [2021-11-06 13:43:51,964 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-06 13:43:51,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 559. [2021-11-06 13:43:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 548 states have (on average 1.5291970802919708) internal successors, (838), 558 states have internal predecessors, (838), 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) [2021-11-06 13:43:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 838 transitions. [2021-11-06 13:43:51,981 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 838 transitions. Word has length 17 [2021-11-06 13:43:51,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:51,981 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 838 transitions. [2021-11-06 13:43:51,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 13:43:51,982 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 838 transitions. [2021-11-06 13:43:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:43:51,984 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:51,984 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:51,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 13:43:51,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:51,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:51,987 INFO L85 PathProgramCache]: Analyzing trace with hash -724152793, now seen corresponding path program 1 times [2021-11-06 13:43:51,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:51,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693795110] [2021-11-06 13:43:51,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:51,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:52,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:52,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:52,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693795110] [2021-11-06 13:43:52,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693795110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:52,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:52,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:52,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082044775] [2021-11-06 13:43:52,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:52,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:52,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:52,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:52,132 INFO L87 Difference]: Start difference. First operand 559 states and 838 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 13:43:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:54,290 INFO L93 Difference]: Finished difference Result 559 states and 838 transitions. [2021-11-06 13:43:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:54,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-06 13:43:54,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:54,293 INFO L225 Difference]: With dead ends: 559 [2021-11-06 13:43:54,293 INFO L226 Difference]: Without dead ends: 557 [2021-11-06 13:43:54,293 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:54,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-06 13:43:54,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2021-11-06 13:43:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 547 states have (on average 1.5283363802559415) internal successors, (836), 556 states have internal predecessors, (836), 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) [2021-11-06 13:43:54,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 836 transitions. [2021-11-06 13:43:54,302 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 836 transitions. Word has length 17 [2021-11-06 13:43:54,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:54,302 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 836 transitions. [2021-11-06 13:43:54,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 13:43:54,303 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 836 transitions. [2021-11-06 13:43:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-06 13:43:54,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:54,303 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:54,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 13:43:54,304 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:54,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash -973900918, now seen corresponding path program 1 times [2021-11-06 13:43:54,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:54,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183698696] [2021-11-06 13:43:54,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:54,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:54,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:54,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183698696] [2021-11-06 13:43:54,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183698696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:54,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:54,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:54,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781747567] [2021-11-06 13:43:54,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:54,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:54,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:54,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:54,420 INFO L87 Difference]: Start difference. First operand 557 states and 836 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-06 13:43:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:56,582 INFO L93 Difference]: Finished difference Result 557 states and 836 transitions. [2021-11-06 13:43:56,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-06 13:43:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:56,584 INFO L225 Difference]: With dead ends: 557 [2021-11-06 13:43:56,584 INFO L226 Difference]: Without dead ends: 553 [2021-11-06 13:43:56,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-11-06 13:43:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2021-11-06 13:43:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 545 states have (on average 1.5247706422018348) internal successors, (831), 552 states have internal predecessors, (831), 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) [2021-11-06 13:43:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 831 transitions. [2021-11-06 13:43:56,594 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 831 transitions. Word has length 18 [2021-11-06 13:43:56,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:56,600 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 831 transitions. [2021-11-06 13:43:56,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-06 13:43:56,600 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 831 transitions. [2021-11-06 13:43:56,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-06 13:43:56,601 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:56,601 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:56,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 13:43:56,601 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -126158191, now seen corresponding path program 1 times [2021-11-06 13:43:56,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:56,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064724929] [2021-11-06 13:43:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:56,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:56,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:56,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064724929] [2021-11-06 13:43:56,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064724929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:56,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:56,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:56,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41802927] [2021-11-06 13:43:56,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:56,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:56,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:56,769 INFO L87 Difference]: Start difference. First operand 553 states and 831 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-06 13:43:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:43:58,965 INFO L93 Difference]: Finished difference Result 553 states and 831 transitions. [2021-11-06 13:43:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:43:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-06 13:43:58,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:43:58,967 INFO L225 Difference]: With dead ends: 553 [2021-11-06 13:43:58,967 INFO L226 Difference]: Without dead ends: 551 [2021-11-06 13:43:58,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:58,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2021-11-06 13:43:58,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2021-11-06 13:43:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 544 states have (on average 1.5238970588235294) internal successors, (829), 550 states have internal predecessors, (829), 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) [2021-11-06 13:43:58,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 829 transitions. [2021-11-06 13:43:58,980 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 829 transitions. Word has length 19 [2021-11-06 13:43:58,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:43:58,981 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 829 transitions. [2021-11-06 13:43:58,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-06 13:43:58,981 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 829 transitions. [2021-11-06 13:43:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-06 13:43:58,981 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:43:58,981 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:43:58,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 13:43:58,982 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:43:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:43:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 384062580, now seen corresponding path program 1 times [2021-11-06 13:43:58,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:43:58,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320852085] [2021-11-06 13:43:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:43:58,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:43:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:43:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:43:59,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:43:59,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320852085] [2021-11-06 13:43:59,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320852085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:43:59,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:43:59,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:43:59,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920544444] [2021-11-06 13:43:59,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:43:59,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:43:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:43:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:43:59,103 INFO L87 Difference]: Start difference. First operand 551 states and 829 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-06 13:44:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:01,314 INFO L93 Difference]: Finished difference Result 826 states and 1270 transitions. [2021-11-06 13:44:01,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:01,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-06 13:44:01,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:01,317 INFO L225 Difference]: With dead ends: 826 [2021-11-06 13:44:01,317 INFO L226 Difference]: Without dead ends: 820 [2021-11-06 13:44:01,318 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:01,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2021-11-06 13:44:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2021-11-06 13:44:01,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 813 states have (on average 1.5522755227552276) internal successors, (1262), 819 states have internal predecessors, (1262), 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) [2021-11-06 13:44:01,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1262 transitions. [2021-11-06 13:44:01,336 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1262 transitions. Word has length 20 [2021-11-06 13:44:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:01,337 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 1262 transitions. [2021-11-06 13:44:01,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-06 13:44:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1262 transitions. [2021-11-06 13:44:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-06 13:44:01,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:01,338 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:01,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 13:44:01,338 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:01,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash -978962693, now seen corresponding path program 1 times [2021-11-06 13:44:01,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:01,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448294885] [2021-11-06 13:44:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:01,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:01,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:01,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448294885] [2021-11-06 13:44:01,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448294885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:01,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:01,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:01,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246519322] [2021-11-06 13:44:01,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:01,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:01,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:01,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:01,494 INFO L87 Difference]: Start difference. First operand 820 states and 1262 transitions. Second operand has 3 states, 3 states have (on average 7.0) 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) [2021-11-06 13:44:03,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:03,548 INFO L93 Difference]: Finished difference Result 820 states and 1262 transitions. [2021-11-06 13:44:03,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:03,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 [2021-11-06 13:44:03,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:03,686 INFO L225 Difference]: With dead ends: 820 [2021-11-06 13:44:03,687 INFO L226 Difference]: Without dead ends: 809 [2021-11-06 13:44:03,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-11-06 13:44:03,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2021-11-06 13:44:03,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 803 states have (on average 1.5529265255292652) internal successors, (1247), 808 states have internal predecessors, (1247), 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) [2021-11-06 13:44:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1247 transitions. [2021-11-06 13:44:03,704 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1247 transitions. Word has length 21 [2021-11-06 13:44:03,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:03,704 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1247 transitions. [2021-11-06 13:44:03,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-06 13:44:03,704 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1247 transitions. [2021-11-06 13:44:03,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-06 13:44:03,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:03,705 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 13:44:03,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 13:44:03,706 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1647991296, now seen corresponding path program 1 times [2021-11-06 13:44:03,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:03,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285921741] [2021-11-06 13:44:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:03,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:44:03,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:03,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285921741] [2021-11-06 13:44:03,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285921741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:03,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:03,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:03,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762892733] [2021-11-06 13:44:03,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:03,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:03,835 INFO L87 Difference]: Start difference. First operand 809 states and 1247 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-06 13:44:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:06,092 INFO L93 Difference]: Finished difference Result 1611 states and 2489 transitions. [2021-11-06 13:44:06,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:06,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 35 [2021-11-06 13:44:06,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:06,096 INFO L225 Difference]: With dead ends: 1611 [2021-11-06 13:44:06,096 INFO L226 Difference]: Without dead ends: 805 [2021-11-06 13:44:06,097 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:06,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-11-06 13:44:06,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 803. [2021-11-06 13:44:06,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 799 states have (on average 1.5456821026282854) internal successors, (1235), 802 states have internal predecessors, (1235), 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) [2021-11-06 13:44:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1235 transitions. [2021-11-06 13:44:06,111 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1235 transitions. Word has length 35 [2021-11-06 13:44:06,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:06,112 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 1235 transitions. [2021-11-06 13:44:06,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-06 13:44:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1235 transitions. [2021-11-06 13:44:06,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-06 13:44:06,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:06,114 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 13:44:06,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 13:44:06,115 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:06,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:06,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1190540448, now seen corresponding path program 1 times [2021-11-06 13:44:06,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:06,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209856045] [2021-11-06 13:44:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:06,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:44:06,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:06,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209856045] [2021-11-06 13:44:06,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209856045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:06,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:06,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:44:06,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66154007] [2021-11-06 13:44:06,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:06,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:06,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:06,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:06,245 INFO L87 Difference]: Start difference. First operand 803 states and 1235 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-06 13:44:08,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:08,425 INFO L93 Difference]: Finished difference Result 803 states and 1235 transitions. [2021-11-06 13:44:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:08,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 37 [2021-11-06 13:44:08,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:08,430 INFO L225 Difference]: With dead ends: 803 [2021-11-06 13:44:08,430 INFO L226 Difference]: Without dead ends: 801 [2021-11-06 13:44:08,431 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:08,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2021-11-06 13:44:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 801. [2021-11-06 13:44:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 798 states have (on average 1.543859649122807) internal successors, (1232), 800 states have internal predecessors, (1232), 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) [2021-11-06 13:44:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1232 transitions. [2021-11-06 13:44:08,460 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1232 transitions. Word has length 37 [2021-11-06 13:44:08,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:08,462 INFO L470 AbstractCegarLoop]: Abstraction has 801 states and 1232 transitions. [2021-11-06 13:44:08,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-06 13:44:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1232 transitions. [2021-11-06 13:44:08,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-06 13:44:08,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:08,463 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-06 13:44:08,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 13:44:08,464 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:08,464 INFO L85 PathProgramCache]: Analyzing trace with hash 583254703, now seen corresponding path program 1 times [2021-11-06 13:44:08,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:08,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805216003] [2021-11-06 13:44:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:08,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 13:44:10,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:44:10,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805216003] [2021-11-06 13:44:10,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805216003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:10,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:10,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 13:44:10,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62265444] [2021-11-06 13:44:10,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:44:10,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:44:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:44:10,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:44:10,190 INFO L87 Difference]: Start difference. First operand 801 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-06 13:44:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:12,433 INFO L93 Difference]: Finished difference Result 1307 states and 2000 transitions. [2021-11-06 13:44:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 13:44:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 43 [2021-11-06 13:44:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:12,435 INFO L225 Difference]: With dead ends: 1307 [2021-11-06 13:44:12,435 INFO L226 Difference]: Without dead ends: 501 [2021-11-06 13:44:12,436 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:12,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-11-06 13:44:12,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 466. [2021-11-06 13:44:12,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 463 states have (on average 1.5464362850971922) internal successors, (716), 465 states have internal predecessors, (716), 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) [2021-11-06 13:44:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 716 transitions. [2021-11-06 13:44:12,445 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 716 transitions. Word has length 43 [2021-11-06 13:44:12,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:12,445 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 716 transitions. [2021-11-06 13:44:12,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-11-06 13:44:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 716 transitions. [2021-11-06 13:44:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 13:44:12,446 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:12,446 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-06 13:44:12,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 13:44:12,447 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1739223835, now seen corresponding path program 1 times [2021-11-06 13:44:12,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:44:12,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700293834] [2021-11-06 13:44:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:12,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:44:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 13:44:13,456 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-06 13:44:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 13:44:14,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-06 13:44:14,573 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-06 13:44:14,574 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,575 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:44:14,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 13:44:14,578 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:14,580 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 13:44:14,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 01:44:14 BoogieIcfgContainer [2021-11-06 13:44:14,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 13:44:14,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 13:44:14,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 13:44:14,906 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 13:44:14,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:43:48" (3/4) ... [2021-11-06 13:44:14,908 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 13:44:14,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 13:44:14,909 INFO L168 Benchmark]: Toolchain (without parser) took 35027.69 ms. Allocated memory was 86.0 MB in the beginning and 713.0 MB in the end (delta: 627.0 MB). Free memory was 44.7 MB in the beginning and 626.0 MB in the end (delta: -581.3 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.1 GB. [2021-11-06 13:44:14,910 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 20.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 13:44:14,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1173.53 ms. Allocated memory was 86.0 MB in the beginning and 157.3 MB in the end (delta: 71.3 MB). Free memory was 44.5 MB in the beginning and 95.6 MB in the end (delta: -51.1 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2021-11-06 13:44:14,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.24 ms. Allocated memory is still 157.3 MB. Free memory was 95.6 MB in the beginning and 83.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-06 13:44:14,911 INFO L168 Benchmark]: Boogie Preprocessor took 107.27 ms. Allocated memory is still 157.3 MB. Free memory was 83.1 MB in the beginning and 73.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-06 13:44:14,911 INFO L168 Benchmark]: RCFGBuilder took 7283.72 ms. Allocated memory was 157.3 MB in the beginning and 469.8 MB in the end (delta: 312.5 MB). Free memory was 73.4 MB in the beginning and 225.4 MB in the end (delta: -152.0 MB). Peak memory consumption was 255.2 MB. Max. memory is 16.1 GB. [2021-11-06 13:44:14,911 INFO L168 Benchmark]: TraceAbstraction took 26300.25 ms. Allocated memory was 469.8 MB in the beginning and 713.0 MB in the end (delta: 243.3 MB). Free memory was 224.3 MB in the beginning and 626.0 MB in the end (delta: -401.7 MB). Peak memory consumption was 181.3 MB. Max. memory is 16.1 GB. [2021-11-06 13:44:14,911 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 713.0 MB. Free memory is still 626.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 13:44:14,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 20.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1173.53 ms. Allocated memory was 86.0 MB in the beginning and 157.3 MB in the end (delta: 71.3 MB). Free memory was 44.5 MB in the beginning and 95.6 MB in the end (delta: -51.1 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 155.24 ms. Allocated memory is still 157.3 MB. Free memory was 95.6 MB in the beginning and 83.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.27 ms. Allocated memory is still 157.3 MB. Free memory was 83.1 MB in the beginning and 73.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7283.72 ms. Allocated memory was 157.3 MB in the beginning and 469.8 MB in the end (delta: 312.5 MB). Free memory was 73.4 MB in the beginning and 225.4 MB in the end (delta: -152.0 MB). Peak memory consumption was 255.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26300.25 ms. Allocated memory was 469.8 MB in the beginning and 713.0 MB in the end (delta: 243.3 MB). Free memory was 224.3 MB in the beginning and 626.0 MB in the end (delta: -401.7 MB). Peak memory consumption was 181.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.68 ms. Allocated memory is still 713.0 MB. Free memory is still 626.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 3473. Possible FailurePath: [L3298] int ldv_state_variable_3 ; [L3299] int ldv_state_variable_1 ; [L3300] int ldv_state_variable_2 ; [L3301] int ref_cnt ; [L3302] int ldv_state_variable_0 ; [L3412] int rc_core_debug ; [L3472] static struct list_head rc_map_list = {& rc_map_list, & rc_map_list}; [L3473-L3474] static spinlock_t rc_map_lock = {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "rc_map_lock", 0, 0UL}}}}; [L3551] static struct rc_map_table empty[1U] = { {42U, 152U}}; [L3552-L3559] static struct rc_map_list empty_map = {{0, 0}, {(struct rc_map_table *)(& empty), 1U, 0U, 0U, 0, "rc-empty", {{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}}}; [L4237-L4238] static struct class ir_input_class = {"rc", 0, 0, 0, 0, 0, 0, & ir_devnode, 0, 0, 0, 0, 0, 0, 0, 0}; [L4239-L4251] static struct __anonstruct_proto_names_168 proto_names[12U] = { {0ULL, (char *)"none"}, {2ULL, (char *)"other"}, {1ULL, (char *)"unknown"}, {24ULL, (char *)"rc-5"}, {1024ULL, (char *)"nec"}, {253952ULL, (char *)"rc-6"}, {64ULL, (char *)"jvc"}, {896ULL, (char *)"sony"}, {32ULL, (char *)"rc-5-sz"}, {2048ULL, (char *)"sanyo"}, {4096ULL, (char *)"mce_kbd"}, {4ULL, (char *)"lirc"}}; [L4578-L4580] static struct device_attribute dev_attr_protocols = {{"protocols", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_protocols, & store_protocols}; [L4581] static struct attribute *rc_dev_attrs[2U] = { & dev_attr_protocols.attr, 0}; [L4582] static struct attribute_group rc_dev_attr_grp = {0, 0, (struct attribute **)(& rc_dev_attrs)}; [L4583] static struct attribute_group const *rc_dev_attr_groups[2U] = { (struct attribute_group const *)(& rc_dev_attr_grp), 0}; [L4584-L4585] static struct device_type rc_dev_type = {0, (struct attribute_group const **)(& rc_dev_attr_groups), & rc_dev_uevent, 0, & rc_dev_release, 0}; [L4884] char *ldvarg3 ; [L4885] struct device *dev_attr_protocols_group0 ; [L4886] struct kobj_uevent_env *ldvarg0 ; [L4887] char *ldvarg5 ; [L4888] struct device *ldvarg1 ; [L4889] int ldv_retval_0 ; [L4890] size_t ldvarg4 ; [L4892] struct device_attribute *dev_attr_protocols_group1 ; [L4894] struct device *rc_dev_type_group0 ; [L4895] umode_t *ldvarg2 ; [L5297] static struct list_head ir_raw_client_list = {& ir_raw_client_list, & ir_raw_client_list}; [L5298-L5301] static struct mutex ir_raw_handler_lock = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "ir_raw_handler_lock.wait_lock", 0, 0UL}}}}, {& ir_raw_handler_lock.wait_list, & ir_raw_handler_lock.wait_list}, 0, 0, (void *)(& ir_raw_handler_lock), {0, {0, 0}, "ir_raw_handler_lock", 0, 0UL}}; [L5302] static struct list_head ir_raw_handler_list = {& ir_raw_handler_list, & ir_raw_handler_list}; [L5303] static u64 available_protocols ; [L5304] static struct work_struct wq_load ; [L6040] static int ldv_mutex_cred_guard_mutex_of_signal_struct ; [L6143] static int ldv_mutex_ir_raw_handler_lock ; [L6245] static int ldv_mutex_lock ; [L6347] static int ldv_mutex_lock_of_rc_dev ; [L6449] static int ldv_mutex_mutex_of_device ; VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:0}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=0, ldv_mutex_ir_raw_handler_lock=0, ldv_mutex_lock=0, ldv_mutex_lock_of_rc_dev=0, ldv_mutex_mutex_of_device=0, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4898] int tmp ; [L4899] int tmp___0 ; [L4900] int tmp___1 ; [L4901] int tmp___2 ; [L4902] int tmp___3 ; [L4904] ldvarg0 = (struct kobj_uevent_env*) __VERIFIER_nondet_long () [L4905] ldvarg1 = (struct device*) __VERIFIER_nondet_long () [L4906] ldvarg2 = (umode_t *) __VERIFIER_nondet_long () [L4907] ldvarg3 = (char*) __VERIFIER_nondet_long () [L4908] ldvarg4 = (size_t) __VERIFIER_nondet_long () [L4909] ldvarg5 = (char*) __VERIFIER_nondet_long () [L4910] dev_attr_protocols_group0 = (struct device *)__VERIFIER_nondet_long () [L4911] dev_attr_protocols_group1 = (struct device_attribute *)__VERIFIER_nondet_long () [L4912] rc_dev_type_group0 = (struct device*) __VERIFIER_nondet_long () [L6554] ldv_mutex_cred_guard_mutex_of_signal_struct = 1 [L6555] ldv_mutex_ir_raw_handler_lock = 1 [L6556] ldv_mutex_lock = 1 [L6557] ldv_mutex_lock_of_rc_dev = 1 [L6558] ldv_mutex_mutex_of_device = 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4914] ldv_state_variable_1 = 0 [L4915] ref_cnt = 0 [L4916] ldv_state_variable_0 = 1 [L4917] ldv_state_variable_3 = 0 [L4918] ldv_state_variable_2 = 0 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4962] COND TRUE ldv_state_variable_0 != 0 [L4963] tmp___1 = __VERIFIER_nondet_int() [L4965] case 0: [L4973] case 1: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4974] COND TRUE ldv_state_variable_0 == 1 [L4861] int rc ; [L4862] struct lock_class_key __key ; [L4863] int tmp ; [L6590] return __VERIFIER_nondet_int(); [L4865] tmp = __class_register(& ir_input_class, & __key) [L4866] rc = tmp VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4867] COND FALSE !(rc != 0) [L3236] head->prev [L3539] return (0); VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4873] return (0); [L4873] return (0); VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4975] ldv_retval_0 = rc_core_init() [L4976] COND TRUE ldv_retval_0 == 0 [L4977] ldv_state_variable_0 = 3 [L4978] ldv_state_variable_2 = 1 [L4979] ldv_state_variable_3 = 1 [L4980] ldv_state_variable_1 = 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4983] COND FALSE !(ldv_retval_0 != 0) VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: [L5028] case 1: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5029] COND TRUE ldv_state_variable_2 == 1 [L4254] struct rc_dev *dev ; [L4255] struct device const *__mptr ; [L4256] u64 allowed ; [L4257] u64 enabled ; [L4258] char *tmp ; [L4259] int i ; [L4260] struct _ddebug descriptor ; [L4261] long tmp___0 ; [L4262] int tmp___1 ; [L4263] int tmp___2 ; [L4265] __mptr = (struct device const *)device [L4266] dev = (struct rc_dev *)__mptr [L4267] tmp = buf VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4268] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L6383] COND TRUE ldv_mutex_lock_of_rc_dev == 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L6387] ldv_mutex_lock_of_rc_dev = 2 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4273] EXPR dev->driver_type VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4273] COND FALSE !((unsigned int )dev->driver_type == 0U) [L4277] EXPR dev->raw VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4277] COND FALSE !((unsigned long )dev->raw != (unsigned long )((struct ir_raw_event_ctrl *)0)) [L4281] return (-19L); [L4281] return (-19L); VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5031] ldv_state_variable_2 = 1 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L5021] COND TRUE ldv_state_variable_2 == 1 [L4333] struct rc_dev *dev ; [L4334] struct device const *__mptr ; [L4335] bool enable ; [L4336] bool disable ; [L4337] char const *tmp ; [L4338] u64 type ; [L4339] u64 mask ; [L4340] int rc ; [L4341] int i ; [L4342] int count ; [L4343] unsigned long flags ; [L4344] ssize_t ret ; [L4345] struct _ddebug descriptor ; [L4346] long tmp___0 ; [L4347] int tmp___1 ; [L4348] struct _ddebug descriptor___0 ; [L4349] long tmp___2 ; [L4350] char *tmp___3 ; [L4351] struct _ddebug descriptor___1 ; [L4352] long tmp___4 ; [L4353] struct _ddebug descriptor___2 ; [L4354] long tmp___5 ; [L4355] raw_spinlock_t *tmp___6 ; [L4356] struct _ddebug descriptor___3 ; [L4357] long tmp___7 ; [L4359] __mptr = (struct device const *)device [L4360] dev = (struct rc_dev *)__mptr [L4361] count = 0 VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L4362] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L6383] COND FALSE !(ldv_mutex_lock_of_rc_dev == 1) VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] [L6023] reach_error() VAL [available_protocols=0, dev_attr_protocols={171:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:0}, empty={195:0}, empty_map={253:0}, ir_input_class={276:0}, ir_raw_client_list={233:0}, ir_raw_handler_list={82:0}, ir_raw_handler_lock={278:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:-2}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={50:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={175:0}, rc_dev_attrs={163:0}, rc_dev_type={181:0}, rc_dev_type_group0={0:0}, rc_map_list={146:0}, rc_map_lock={182:0}, ref_cnt=0, wq_load={149:0}] - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 25.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4046 SDtfs, 2503 SDslu, 2080 SDs, 0 SdLazy, 69 SolverSat, 23 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=820occurred in iteration=7, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 83 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 19/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-06 13:44:14,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 13:44:16,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:44:16,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:44:16,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:44:16,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:44:16,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:44:16,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:44:16,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:44:16,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:44:16,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:44:16,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:44:16,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:44:16,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:44:16,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:44:16,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:44:16,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:44:16,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:44:16,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:44:16,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:44:16,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:44:16,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:44:16,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:44:16,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:44:16,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:44:16,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:44:16,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:44:16,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:44:16,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:44:16,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:44:16,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:44:16,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:44:16,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:44:16,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:44:16,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:44:16,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:44:16,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:44:16,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:44:16,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:44:16,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:44:16,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:44:16,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:44:16,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-06 13:44:16,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:44:16,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:44:16,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:44:16,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:44:16,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:44:16,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:44:16,773 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:44:16,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:44:16,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:44:16,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:44:16,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:44:16,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:44:16,775 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-06 13:44:16,775 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-06 13:44:16,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:44:16,776 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:44:16,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:44:16,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:44:16,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:44:16,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:44:16,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:44:16,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:44:16,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:44:16,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:44:16,777 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-06 13:44:16,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-06 13:44:16,778 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:44:16,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:44:16,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:44:16,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:44:16,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-06 13:44:16,778 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-06 13:44:17,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:44:17,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:44:17,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:44:17,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:44:17,079 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:44:17,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-06 13:44:17,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4166c61e/d1a9f4288c194d228dbf0ce0722cc3d3/FLAGce384fbcb [2021-11-06 13:44:17,728 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:44:17,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-06 13:44:17,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4166c61e/d1a9f4288c194d228dbf0ce0722cc3d3/FLAGce384fbcb [2021-11-06 13:44:17,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4166c61e/d1a9f4288c194d228dbf0ce0722cc3d3 [2021-11-06 13:44:17,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:44:17,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:44:17,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:44:17,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:44:17,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:44:17,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:44:17" (1/1) ... [2021-11-06 13:44:17,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79503b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:17, skipping insertion in model container [2021-11-06 13:44:17,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:44:17" (1/1) ... [2021-11-06 13:44:17,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:44:18,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:44:18,893 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-06 13:44:18,979 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-06 13:44:18,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:44:19,019 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:44:19,229 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-06 13:44:19,241 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-06 13:44:19,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:44:19,318 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:44:19,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19 WrapperNode [2021-11-06 13:44:19,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:44:19,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:44:19,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:44:19,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:44:19,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:44:19,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:44:19,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:44:19,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:44:19,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:44:19,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:44:19,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:44:19,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:44:19,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (1/1) ... [2021-11-06 13:44:19,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:44:19,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:44:19,637 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) [2021-11-06 13:44:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-06 13:44:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-06 13:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-06 13:44:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-06 13:44:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-06 13:44:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-06 13:44:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:44:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:44:19,654 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 [2021-11-06 13:44:31,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:44:31,038 INFO L299 CfgBuilder]: Removed 182 assume(true) statements. [2021-11-06 13:44:31,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:44:31 BoogieIcfgContainer [2021-11-06 13:44:31,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:44:31,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:44:31,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:44:31,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:44:31,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:44:17" (1/3) ... [2021-11-06 13:44:31,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf57edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:44:31, skipping insertion in model container [2021-11-06 13:44:31,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:44:19" (2/3) ... [2021-11-06 13:44:31,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf57edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:44:31, skipping insertion in model container [2021-11-06 13:44:31,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:44:31" (3/3) ... [2021-11-06 13:44:31,045 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-06 13:44:31,048 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:44:31,048 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-06 13:44:31,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:44:31,078 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 [2021-11-06 13:44:31,078 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-06 13:44:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) [2021-11-06 13:44:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-06 13:44:31,092 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:31,092 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:31,093 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:31,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:31,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1013367014, now seen corresponding path program 1 times [2021-11-06 13:44:31,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:44:31,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614257425] [2021-11-06 13:44:31,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:31,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:44:31,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:44:31,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:44:31,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-06 13:44:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:33,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:33,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:33,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:44:33,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:33,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:44:33,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614257425] [2021-11-06 13:44:33,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614257425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:33,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:33,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:44:33,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588279288] [2021-11-06 13:44:33,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:33,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:44:33,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:33,790 INFO L87 Difference]: Start difference. First operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-06 13:44:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:34,098 INFO L93 Difference]: Finished difference Result 576 states and 851 transitions. [2021-11-06 13:44:34,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:34,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-06 13:44:34,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:34,106 INFO L225 Difference]: With dead ends: 576 [2021-11-06 13:44:34,106 INFO L226 Difference]: Without dead ends: 325 [2021-11-06 13:44:34,109 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:34,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-06 13:44:34,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 306. [2021-11-06 13:44:34,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 295 states have (on average 1.5186440677966102) internal successors, (448), 305 states have internal predecessors, (448), 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) [2021-11-06 13:44:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 448 transitions. [2021-11-06 13:44:34,146 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 448 transitions. Word has length 14 [2021-11-06 13:44:34,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:34,146 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 448 transitions. [2021-11-06 13:44:34,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-06 13:44:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 448 transitions. [2021-11-06 13:44:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-06 13:44:34,152 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:34,152 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:34,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-06 13:44:34,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:44:34,372 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:34,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:34,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1696174329, now seen corresponding path program 1 times [2021-11-06 13:44:34,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:44:34,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782021864] [2021-11-06 13:44:34,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:34,376 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:44:34,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:44:34,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:44:34,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-06 13:44:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:36,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:36,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:36,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:44:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:36,949 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:44:36,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782021864] [2021-11-06 13:44:36,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782021864] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:36,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:36,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-06 13:44:36,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448585247] [2021-11-06 13:44:36,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:44:36,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:44:36,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:44:36,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:44:36,952 INFO L87 Difference]: Start difference. First operand 306 states and 448 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-06 13:44:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:39,315 INFO L93 Difference]: Finished difference Result 1138 states and 1697 transitions. [2021-11-06 13:44:39,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 13:44:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 15 [2021-11-06 13:44:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:39,319 INFO L225 Difference]: With dead ends: 1138 [2021-11-06 13:44:39,323 INFO L226 Difference]: Without dead ends: 835 [2021-11-06 13:44:39,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:44:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2021-11-06 13:44:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 811. [2021-11-06 13:44:39,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 800 states have (on average 1.54) internal successors, (1232), 810 states have internal predecessors, (1232), 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) [2021-11-06 13:44:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1232 transitions. [2021-11-06 13:44:39,393 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1232 transitions. Word has length 15 [2021-11-06 13:44:39,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:39,394 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 1232 transitions. [2021-11-06 13:44:39,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-11-06 13:44:39,394 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1232 transitions. [2021-11-06 13:44:39,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:44:39,396 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:39,396 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:39,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-06 13:44:39,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:44:39,624 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash -724212375, now seen corresponding path program 1 times [2021-11-06 13:44:39,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:44:39,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530335490] [2021-11-06 13:44:39,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:39,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:44:39,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:44:39,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:44:39,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-06 13:44:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:42,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 13:44:42,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:42,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:44:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:42,158 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:44:42,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530335490] [2021-11-06 13:44:42,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530335490] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:42,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:42,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-06 13:44:42,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860466643] [2021-11-06 13:44:42,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:44:42,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:44:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:44:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:44:42,160 INFO L87 Difference]: Start difference. First operand 811 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-11-06 13:44:44,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:44,467 INFO L93 Difference]: Finished difference Result 1457 states and 2198 transitions. [2021-11-06 13:44:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 13:44:44,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2021-11-06 13:44:44,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:44,470 INFO L225 Difference]: With dead ends: 1457 [2021-11-06 13:44:44,470 INFO L226 Difference]: Without dead ends: 649 [2021-11-06 13:44:44,471 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:44:44,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-11-06 13:44:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 605. [2021-11-06 13:44:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 594 states have (on average 1.5471380471380471) internal successors, (919), 604 states have internal predecessors, (919), 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) [2021-11-06 13:44:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 919 transitions. [2021-11-06 13:44:44,483 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 919 transitions. Word has length 17 [2021-11-06 13:44:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:44,483 INFO L470 AbstractCegarLoop]: Abstraction has 605 states and 919 transitions. [2021-11-06 13:44:44,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-11-06 13:44:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 919 transitions. [2021-11-06 13:44:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:44:44,484 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:44,484 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:44,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-06 13:44:44,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:44:44,699 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:44,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash -724152793, now seen corresponding path program 1 times [2021-11-06 13:44:44,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:44:44,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946484555] [2021-11-06 13:44:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:44,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:44:44,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:44:44,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:44:44,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-06 13:44:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:46,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1252 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:46,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:47,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:44:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:47,207 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:44:47,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946484555] [2021-11-06 13:44:47,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946484555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:47,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:47,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:44:47,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619289537] [2021-11-06 13:44:47,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:47,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:44:47,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:47,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:47,209 INFO L87 Difference]: Start difference. First operand 605 states and 919 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 13:44:49,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:49,450 INFO L93 Difference]: Finished difference Result 605 states and 919 transitions. [2021-11-06 13:44:49,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:49,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-11-06 13:44:49,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:49,453 INFO L225 Difference]: With dead ends: 605 [2021-11-06 13:44:49,453 INFO L226 Difference]: Without dead ends: 603 [2021-11-06 13:44:49,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:49,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-11-06 13:44:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2021-11-06 13:44:49,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 593 states have (on average 1.5463743676222597) internal successors, (917), 602 states have internal predecessors, (917), 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) [2021-11-06 13:44:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 917 transitions. [2021-11-06 13:44:49,466 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 917 transitions. Word has length 17 [2021-11-06 13:44:49,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:49,466 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 917 transitions. [2021-11-06 13:44:49,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-06 13:44:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 917 transitions. [2021-11-06 13:44:49,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-06 13:44:49,467 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:49,467 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:49,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-06 13:44:49,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:44:49,683 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:49,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash -973900918, now seen corresponding path program 1 times [2021-11-06 13:44:49,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:44:49,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953636912] [2021-11-06 13:44:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:49,686 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:44:49,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:44:49,687 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:44:49,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-06 13:44:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:52,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:52,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:52,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:44:52,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:52,307 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:44:52,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953636912] [2021-11-06 13:44:52,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953636912] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:52,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:52,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:44:52,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905024964] [2021-11-06 13:44:52,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:52,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:44:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:52,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:52,309 INFO L87 Difference]: Start difference. First operand 603 states and 917 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-06 13:44:54,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:54,572 INFO L93 Difference]: Finished difference Result 603 states and 917 transitions. [2021-11-06 13:44:54,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-11-06 13:44:54,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:54,575 INFO L225 Difference]: With dead ends: 603 [2021-11-06 13:44:54,575 INFO L226 Difference]: Without dead ends: 599 [2021-11-06 13:44:54,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-06 13:44:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-11-06 13:44:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 591 states have (on average 1.5431472081218274) internal successors, (912), 598 states have internal predecessors, (912), 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) [2021-11-06 13:44:54,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 912 transitions. [2021-11-06 13:44:54,590 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 912 transitions. Word has length 18 [2021-11-06 13:44:54,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:54,590 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 912 transitions. [2021-11-06 13:44:54,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-06 13:44:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 912 transitions. [2021-11-06 13:44:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-06 13:44:54,591 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:54,591 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:54,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-06 13:44:54,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:44:54,807 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:44:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:44:54,808 INFO L85 PathProgramCache]: Analyzing trace with hash -126158191, now seen corresponding path program 1 times [2021-11-06 13:44:54,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:44:54,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756943694] [2021-11-06 13:44:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:44:54,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:44:54,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:44:54,811 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:44:54,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-06 13:44:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:44:57,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:44:57,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:44:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:57,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:44:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:44:57,512 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:44:57,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756943694] [2021-11-06 13:44:57,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756943694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:44:57,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:44:57,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:44:57,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987570671] [2021-11-06 13:44:57,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:44:57,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:44:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:44:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:57,514 INFO L87 Difference]: Start difference. First operand 599 states and 912 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-06 13:44:59,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:44:59,768 INFO L93 Difference]: Finished difference Result 599 states and 912 transitions. [2021-11-06 13:44:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:44:59,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-11-06 13:44:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:44:59,771 INFO L225 Difference]: With dead ends: 599 [2021-11-06 13:44:59,771 INFO L226 Difference]: Without dead ends: 597 [2021-11-06 13:44:59,772 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:44:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-06 13:44:59,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2021-11-06 13:44:59,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 590 states have (on average 1.5423728813559323) internal successors, (910), 596 states have internal predecessors, (910), 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) [2021-11-06 13:44:59,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 910 transitions. [2021-11-06 13:44:59,788 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 910 transitions. Word has length 19 [2021-11-06 13:44:59,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:44:59,789 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 910 transitions. [2021-11-06 13:44:59,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-06 13:44:59,789 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 910 transitions. [2021-11-06 13:44:59,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-06 13:44:59,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:44:59,791 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:44:59,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-06 13:44:59,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:44:59,999 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:45:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:45:00,000 INFO L85 PathProgramCache]: Analyzing trace with hash 384062580, now seen corresponding path program 1 times [2021-11-06 13:45:00,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:45:00,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590345370] [2021-11-06 13:45:00,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:45:00,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:45:00,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:45:00,003 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:45:00,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-06 13:45:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:45:02,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:45:02,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:45:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:45:02,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:45:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:45:02,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:45:02,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590345370] [2021-11-06 13:45:02,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590345370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:45:02,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:45:02,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:45:02,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505726341] [2021-11-06 13:45:02,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:45:02,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:45:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:45:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:02,536 INFO L87 Difference]: Start difference. First operand 597 states and 910 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-06 13:45:04,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:45:04,854 INFO L93 Difference]: Finished difference Result 864 states and 1344 transitions. [2021-11-06 13:45:04,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:45:04,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-06 13:45:04,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:45:04,858 INFO L225 Difference]: With dead ends: 864 [2021-11-06 13:45:04,859 INFO L226 Difference]: Without dead ends: 858 [2021-11-06 13:45:04,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:04,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-11-06 13:45:04,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2021-11-06 13:45:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 851 states have (on average 1.5699177438307874) internal successors, (1336), 857 states have internal predecessors, (1336), 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) [2021-11-06 13:45:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1336 transitions. [2021-11-06 13:45:04,879 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1336 transitions. Word has length 20 [2021-11-06 13:45:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:45:04,879 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1336 transitions. [2021-11-06 13:45:04,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-06 13:45:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1336 transitions. [2021-11-06 13:45:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-06 13:45:04,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:45:04,880 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:45:04,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-06 13:45:05,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:45:05,095 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:45:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:45:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -978962693, now seen corresponding path program 1 times [2021-11-06 13:45:05,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:45:05,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174902108] [2021-11-06 13:45:05,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:45:05,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:45:05,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:45:05,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:45:05,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-06 13:45:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:45:07,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:45:07,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:45:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:45:07,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:45:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:45:07,736 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:45:07,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174902108] [2021-11-06 13:45:07,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174902108] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:45:07,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:45:07,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:45:07,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542658458] [2021-11-06 13:45:07,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:45:07,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:45:07,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:45:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:07,739 INFO L87 Difference]: Start difference. First operand 858 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 7.0) 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) [2021-11-06 13:45:09,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:45:09,934 INFO L93 Difference]: Finished difference Result 858 states and 1336 transitions. [2021-11-06 13:45:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:45:09,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 [2021-11-06 13:45:09,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:45:10,000 INFO L225 Difference]: With dead ends: 858 [2021-11-06 13:45:10,000 INFO L226 Difference]: Without dead ends: 844 [2021-11-06 13:45:10,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:10,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-11-06 13:45:10,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 790. [2021-11-06 13:45:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 784 states have (on average 1.5650510204081634) internal successors, (1227), 789 states have internal predecessors, (1227), 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) [2021-11-06 13:45:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1227 transitions. [2021-11-06 13:45:10,024 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1227 transitions. Word has length 21 [2021-11-06 13:45:10,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:45:10,026 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1227 transitions. [2021-11-06 13:45:10,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-06 13:45:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1227 transitions. [2021-11-06 13:45:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 13:45:10,027 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:45:10,027 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 13:45:10,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-06 13:45:10,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:45:10,253 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:45:10,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:45:10,254 INFO L85 PathProgramCache]: Analyzing trace with hash -647396756, now seen corresponding path program 1 times [2021-11-06 13:45:10,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:45:10,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856515788] [2021-11-06 13:45:10,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:45:10,256 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:45:10,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:45:10,257 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:45:10,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-06 13:45:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:45:12,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:45:12,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:45:12,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:45:12,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:45:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:45:12,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:45:12,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856515788] [2021-11-06 13:45:12,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856515788] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:45:12,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:45:12,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:45:12,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086210043] [2021-11-06 13:45:12,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:45:12,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:45:12,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:45:12,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:12,875 INFO L87 Difference]: Start difference. First operand 790 states and 1227 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-06 13:45:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:45:15,216 INFO L93 Difference]: Finished difference Result 1519 states and 2361 transitions. [2021-11-06 13:45:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:45:15,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 40 [2021-11-06 13:45:15,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:45:15,219 INFO L225 Difference]: With dead ends: 1519 [2021-11-06 13:45:15,219 INFO L226 Difference]: Without dead ends: 786 [2021-11-06 13:45:15,220 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:15,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-11-06 13:45:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 784. [2021-11-06 13:45:15,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 780 states have (on average 1.5576923076923077) internal successors, (1215), 783 states have internal predecessors, (1215), 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) [2021-11-06 13:45:15,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1215 transitions. [2021-11-06 13:45:15,238 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1215 transitions. Word has length 40 [2021-11-06 13:45:15,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:45:15,238 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1215 transitions. [2021-11-06 13:45:15,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-06 13:45:15,239 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1215 transitions. [2021-11-06 13:45:15,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 13:45:15,240 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:45:15,241 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 13:45:15,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-06 13:45:15,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:45:15,447 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:45:15,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:45:15,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1691861812, now seen corresponding path program 1 times [2021-11-06 13:45:15,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:45:15,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679179636] [2021-11-06 13:45:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:45:15,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:45:15,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:45:15,453 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:45:15,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-06 13:45:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:45:17,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 13:45:17,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 13:45:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:45:17,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 13:45:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 13:45:18,071 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 13:45:18,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679179636] [2021-11-06 13:45:18,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679179636] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 13:45:18,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:45:18,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 13:45:18,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633528298] [2021-11-06 13:45:18,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:45:18,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 13:45:18,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:45:18,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:18,072 INFO L87 Difference]: Start difference. First operand 784 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 13:45:20,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:45:20,346 INFO L93 Difference]: Finished difference Result 784 states and 1215 transitions. [2021-11-06 13:45:20,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:45:20,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 42 [2021-11-06 13:45:20,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:45:20,348 INFO L225 Difference]: With dead ends: 784 [2021-11-06 13:45:20,349 INFO L226 Difference]: Without dead ends: 782 [2021-11-06 13:45:20,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:45:20,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-11-06 13:45:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2021-11-06 13:45:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 779 states have (on average 1.5558408215661104) internal successors, (1212), 781 states have internal predecessors, (1212), 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) [2021-11-06 13:45:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1212 transitions. [2021-11-06 13:45:20,366 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1212 transitions. Word has length 42 [2021-11-06 13:45:20,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:45:20,367 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1212 transitions. [2021-11-06 13:45:20,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-06 13:45:20,367 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1212 transitions. [2021-11-06 13:45:20,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-06 13:45:20,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:45:20,369 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-06 13:45:20,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-06 13:45:20,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 13:45:20,575 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-06 13:45:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:45:20,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1739223835, now seen corresponding path program 1 times [2021-11-06 13:45:20,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 13:45:20,578 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757496417] [2021-11-06 13:45:20,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:45:20,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 13:45:20,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 13:45:20,580 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 13:45:20,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process Killed by 15