./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 16:00:42,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 16:00:42,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 16:00:42,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 16:00:42,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 16:00:42,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 16:00:42,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 16:00:42,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 16:00:42,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 16:00:42,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 16:00:42,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 16:00:42,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 16:00:42,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 16:00:42,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 16:00:42,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 16:00:42,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 16:00:42,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 16:00:42,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 16:00:42,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 16:00:42,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 16:00:42,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 16:00:42,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 16:00:42,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 16:00:42,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 16:00:42,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 16:00:42,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 16:00:42,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 16:00:42,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 16:00:42,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 16:00:42,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 16:00:42,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 16:00:42,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 16:00:42,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 16:00:42,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 16:00:42,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 16:00:42,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 16:00:42,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 16:00:42,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 16:00:42,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 16:00:42,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 16:00:42,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 16:00:42,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 16:00:42,813 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 16:00:42,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 16:00:42,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 16:00:42,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 16:00:42,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 16:00:42,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 16:00:42,816 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 16:00:42,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 16:00:42,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 16:00:42,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 16:00:42,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 16:00:42,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 16:00:42,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 16:00:42,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 16:00:42,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 16:00:42,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 16:00:42,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 16:00:42,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 16:00:42,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 16:00:42,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:00:42,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 16:00:42,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 16:00:42,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 16:00:42,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 16:00:42,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 16:00:42,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 16:00:42,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 16:00:42,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 16:00:42,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 16:00:42,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2021-11-05 16:00:43,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 16:00:43,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 16:00:43,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 16:00:43,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 16:00:43,120 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 16:00:43,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2021-11-05 16:00:43,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc97e111/20a664b44b144b978ee2d0eac3a9e3dc/FLAGdf4360dbd [2021-11-05 16:00:43,790 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 16:00:43,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2021-11-05 16:00:43,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc97e111/20a664b44b144b978ee2d0eac3a9e3dc/FLAGdf4360dbd [2021-11-05 16:00:44,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbc97e111/20a664b44b144b978ee2d0eac3a9e3dc [2021-11-05 16:00:44,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 16:00:44,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 16:00:44,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 16:00:44,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 16:00:44,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 16:00:44,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:00:44" (1/1) ... [2021-11-05 16:00:44,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cae3fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:44, skipping insertion in model container [2021-11-05 16:00:44,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:00:44" (1/1) ... [2021-11-05 16:00:44,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 16:00:44,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 16:00:44,563 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2021-11-05 16:00:44,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:00:44,821 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 16:00:44,927 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2021-11-05 16:00:45,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:00:45,108 INFO L208 MainTranslator]: Completed translation [2021-11-05 16:00:45,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45 WrapperNode [2021-11-05 16:00:45,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 16:00:45,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 16:00:45,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 16:00:45,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 16:00:45,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 16:00:45,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 16:00:45,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 16:00:45,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 16:00:45,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 16:00:45,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 16:00:45,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 16:00:45,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 16:00:45,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (1/1) ... [2021-11-05 16:00:45,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:00:45,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 16:00:45,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 16:00:45,460 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 [2021-11-05 16:00:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 16:00:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 16:00:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 16:00:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 16:00:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 16:00:53,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 16:00:53,206 INFO L299 CfgBuilder]: Removed 310 assume(true) statements. [2021-11-05 16:00:53,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:00:53 BoogieIcfgContainer [2021-11-05 16:00:53,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 16:00:53,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 16:00:53,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 16:00:53,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 16:00:53,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 04:00:44" (1/3) ... [2021-11-05 16:00:53,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c18e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:00:53, skipping insertion in model container [2021-11-05 16:00:53,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:00:45" (2/3) ... [2021-11-05 16:00:53,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f7c18e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:00:53, skipping insertion in model container [2021-11-05 16:00:53,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:00:53" (3/3) ... [2021-11-05 16:00:53,216 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2021-11-05 16:00:53,220 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 16:00:53,220 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-05 16:00:53,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 16:00:53,266 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 [2021-11-05 16:00:53,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-05 16:00:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 387 states have internal predecessors, (574), 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) [2021-11-05 16:00:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 16:00:53,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:53,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:53,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:53,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1148713798, now seen corresponding path program 1 times [2021-11-05 16:00:53,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:53,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742179881] [2021-11-05 16:00:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:53,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:53,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:53,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742179881] [2021-11-05 16:00:53,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742179881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:53,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:53,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:00:53,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780875888] [2021-11-05 16:00:53,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:53,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:53,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:53,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:53,812 INFO L87 Difference]: Start difference. First operand has 388 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 387 states have internal predecessors, (574), 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 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) [2021-11-05 16:00:55,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:00:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:56,105 INFO L93 Difference]: Finished difference Result 1120 states and 1667 transitions. [2021-11-05 16:00:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:56,108 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 [2021-11-05 16:00:56,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:56,122 INFO L225 Difference]: With dead ends: 1120 [2021-11-05 16:00:56,127 INFO L226 Difference]: Without dead ends: 725 [2021-11-05 16:00:56,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:56,135 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 499 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2076.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.92ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2210.06ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:56,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1053 Invalid, 16 Unknown, 0 Unchecked, 8.92ms Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2210.06ms Time] [2021-11-05 16:00:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2021-11-05 16:00:56,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2021-11-05 16:00:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 720 states have (on average 1.4055555555555554) internal successors, (1012), 724 states have internal predecessors, (1012), 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) [2021-11-05 16:00:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1012 transitions. [2021-11-05 16:00:56,228 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1012 transitions. Word has length 15 [2021-11-05 16:00:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:56,229 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 1012 transitions. [2021-11-05 16:00:56,229 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) [2021-11-05 16:00:56,231 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1012 transitions. [2021-11-05 16:00:56,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 16:00:56,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:56,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:56,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 16:00:56,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1888760138, now seen corresponding path program 1 times [2021-11-05 16:00:56,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:56,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66671595] [2021-11-05 16:00:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:56,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:56,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:56,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66671595] [2021-11-05 16:00:56,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66671595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:56,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:56,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:00:56,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368854268] [2021-11-05 16:00:56,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:56,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:56,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:56,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:56,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:56,566 INFO L87 Difference]: Start difference. First operand 725 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2021-11-05 16:00:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:56,663 INFO L93 Difference]: Finished difference Result 755 states and 1040 transitions. [2021-11-05 16:00:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:56,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-05 16:00:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:56,670 INFO L225 Difference]: With dead ends: 755 [2021-11-05 16:00:56,670 INFO L226 Difference]: Without dead ends: 740 [2021-11-05 16:00:56,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:56,674 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 521 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.23ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.14ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:56,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 553 Invalid, 6 Unknown, 0 Unchecked, 2.23ms Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 69.14ms Time] [2021-11-05 16:00:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-11-05 16:00:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 725. [2021-11-05 16:00:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 720 states have (on average 1.4041666666666666) internal successors, (1011), 724 states have internal predecessors, (1011), 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) [2021-11-05 16:00:56,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1011 transitions. [2021-11-05 16:00:56,712 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1011 transitions. Word has length 22 [2021-11-05 16:00:56,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:56,713 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 1011 transitions. [2021-11-05 16:00:56,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-05 16:00:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1011 transitions. [2021-11-05 16:00:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 16:00:56,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:56,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:56,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 16:00:56,719 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:56,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1888700556, now seen corresponding path program 1 times [2021-11-05 16:00:56,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:56,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833121253] [2021-11-05 16:00:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:56,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:57,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:57,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833121253] [2021-11-05 16:00:57,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833121253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:57,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:57,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:00:57,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693400256] [2021-11-05 16:00:57,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:57,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:57,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:57,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:57,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:57,070 INFO L87 Difference]: Start difference. First operand 725 states and 1011 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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) [2021-11-05 16:00:57,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:57,175 INFO L93 Difference]: Finished difference Result 2157 states and 3014 transitions. [2021-11-05 16:00:57,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:57,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 22 [2021-11-05 16:00:57,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:57,184 INFO L225 Difference]: With dead ends: 2157 [2021-11-05 16:00:57,184 INFO L226 Difference]: Without dead ends: 1440 [2021-11-05 16:00:57,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:57,193 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 501 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.04ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.87ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:57,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 1027 Invalid, 18 Unknown, 0 Unchecked, 3.04ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 66.87ms Time] [2021-11-05 16:00:57,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2021-11-05 16:00:57,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1428. [2021-11-05 16:00:57,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1423 states have (on average 1.4026704146170064) internal successors, (1996), 1427 states have internal predecessors, (1996), 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) [2021-11-05 16:00:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1996 transitions. [2021-11-05 16:00:57,236 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1996 transitions. Word has length 22 [2021-11-05 16:00:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:57,237 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1996 transitions. [2021-11-05 16:00:57,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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) [2021-11-05 16:00:57,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1996 transitions. [2021-11-05 16:00:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-05 16:00:57,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:57,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:57,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 16:00:57,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1579824603, now seen corresponding path program 1 times [2021-11-05 16:00:57,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:57,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991864782] [2021-11-05 16:00:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:57,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:57,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:57,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991864782] [2021-11-05 16:00:57,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991864782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:57,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:57,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:00:57,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383303220] [2021-11-05 16:00:57,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:57,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:57,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:57,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:57,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:57,547 INFO L87 Difference]: Start difference. First operand 1428 states and 1996 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 16:00:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:57,649 INFO L93 Difference]: Finished difference Result 4262 states and 5961 transitions. [2021-11-05 16:00:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:57,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-05 16:00:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:57,660 INFO L225 Difference]: With dead ends: 4262 [2021-11-05 16:00:57,660 INFO L226 Difference]: Without dead ends: 2842 [2021-11-05 16:00:57,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:57,665 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 499 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.95ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.63ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:57,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1438 Invalid, 12 Unknown, 0 Unchecked, 2.95ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 40.63ms Time] [2021-11-05 16:00:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2021-11-05 16:00:57,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2831. [2021-11-05 16:00:57,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2831 states, 2826 states have (on average 1.4012738853503184) internal successors, (3960), 2830 states have internal predecessors, (3960), 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) [2021-11-05 16:00:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 3960 transitions. [2021-11-05 16:00:57,741 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 3960 transitions. Word has length 23 [2021-11-05 16:00:57,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:57,741 INFO L470 AbstractCegarLoop]: Abstraction has 2831 states and 3960 transitions. [2021-11-05 16:00:57,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 16:00:57,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 3960 transitions. [2021-11-05 16:00:57,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-05 16:00:57,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:57,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:57,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 16:00:57,743 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:57,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:57,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1729922142, now seen corresponding path program 1 times [2021-11-05 16:00:57,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:57,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760727864] [2021-11-05 16:00:57,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:57,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:57,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:57,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760727864] [2021-11-05 16:00:57,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760727864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:57,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:57,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:00:57,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713176414] [2021-11-05 16:00:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:57,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:57,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:57,884 INFO L87 Difference]: Start difference. First operand 2831 states and 3960 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-05 16:00:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:57,947 INFO L93 Difference]: Finished difference Result 2836 states and 3964 transitions. [2021-11-05 16:00:57,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:57,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2021-11-05 16:00:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:57,957 INFO L225 Difference]: With dead ends: 2836 [2021-11-05 16:00:57,957 INFO L226 Difference]: Without dead ends: 2834 [2021-11-05 16:00:57,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:57,960 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 496 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.39ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:57,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 1438 Invalid, 6 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 17.39ms Time] [2021-11-05 16:00:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2021-11-05 16:00:58,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2832. [2021-11-05 16:00:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2827 states have (on average 1.401131941987973) internal successors, (3961), 2831 states have internal predecessors, (3961), 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) [2021-11-05 16:00:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3961 transitions. [2021-11-05 16:00:58,032 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3961 transitions. Word has length 24 [2021-11-05 16:00:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:58,033 INFO L470 AbstractCegarLoop]: Abstraction has 2832 states and 3961 transitions. [2021-11-05 16:00:58,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-05 16:00:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3961 transitions. [2021-11-05 16:00:58,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 16:00:58,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:58,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:58,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 16:00:58,037 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:58,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:58,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2087978565, now seen corresponding path program 1 times [2021-11-05 16:00:58,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:58,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646391007] [2021-11-05 16:00:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:58,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:58,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:58,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:58,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646391007] [2021-11-05 16:00:58,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646391007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:58,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:58,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:00:58,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781587746] [2021-11-05 16:00:58,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:58,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:58,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:58,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:58,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:58,244 INFO L87 Difference]: Start difference. First operand 2832 states and 3961 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 16:00:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:58,286 INFO L93 Difference]: Finished difference Result 2832 states and 3961 transitions. [2021-11-05 16:00:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-05 16:00:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:58,296 INFO L225 Difference]: With dead ends: 2832 [2021-11-05 16:00:58,296 INFO L226 Difference]: Without dead ends: 2830 [2021-11-05 16:00:58,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:58,300 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 501 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.82ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:58,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.82ms Time] [2021-11-05 16:00:58,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-11-05 16:00:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2021-11-05 16:00:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2826 states have (on average 1.4009200283085634) internal successors, (3959), 2829 states have internal predecessors, (3959), 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) [2021-11-05 16:00:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 3959 transitions. [2021-11-05 16:00:58,374 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 3959 transitions. Word has length 25 [2021-11-05 16:00:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:58,374 INFO L470 AbstractCegarLoop]: Abstraction has 2830 states and 3959 transitions. [2021-11-05 16:00:58,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 16:00:58,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 3959 transitions. [2021-11-05 16:00:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 16:00:58,375 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:58,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:58,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 16:00:58,376 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 302825800, now seen corresponding path program 1 times [2021-11-05 16:00:58,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:58,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829051620] [2021-11-05 16:00:58,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:58,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:58,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:58,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829051620] [2021-11-05 16:00:58,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829051620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:58,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:58,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 16:00:58,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506851273] [2021-11-05 16:00:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:58,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:58,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:58,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:58,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:58,512 INFO L87 Difference]: Start difference. First operand 2830 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-11-05 16:00:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:58,558 INFO L93 Difference]: Finished difference Result 2830 states and 3959 transitions. [2021-11-05 16:00:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:58,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-11-05 16:00:58,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:58,568 INFO L225 Difference]: With dead ends: 2830 [2021-11-05 16:00:58,568 INFO L226 Difference]: Without dead ends: 2821 [2021-11-05 16:00:58,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:58,571 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 498 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:58,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 1.20ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 16:00:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2021-11-05 16:00:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2821. [2021-11-05 16:00:58,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2818 states have (on average 1.400638750887154) internal successors, (3947), 2820 states have internal predecessors, (3947), 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) [2021-11-05 16:00:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 3947 transitions. [2021-11-05 16:00:58,661 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 3947 transitions. Word has length 26 [2021-11-05 16:00:58,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:58,661 INFO L470 AbstractCegarLoop]: Abstraction has 2821 states and 3947 transitions. [2021-11-05 16:00:58,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-11-05 16:00:58,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 3947 transitions. [2021-11-05 16:00:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-05 16:00:58,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:58,665 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:58,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 16:00:58,665 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:58,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:58,666 INFO L85 PathProgramCache]: Analyzing trace with hash -67576925, now seen corresponding path program 1 times [2021-11-05 16:00:58,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:58,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083283936] [2021-11-05 16:00:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:58,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:00:58,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:58,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083283936] [2021-11-05 16:00:58,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083283936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:58,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:58,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 16:00:58,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052329490] [2021-11-05 16:00:58,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:58,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:00:58,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:00:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:58,866 INFO L87 Difference]: Start difference. First operand 2821 states and 3947 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-05 16:00:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:00:59,009 INFO L93 Difference]: Finished difference Result 5756 states and 8057 transitions. [2021-11-05 16:00:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:00:59,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-05 16:00:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:00:59,020 INFO L225 Difference]: With dead ends: 5756 [2021-11-05 16:00:59,020 INFO L226 Difference]: Without dead ends: 2943 [2021-11-05 16:00:59,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:00:59,026 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 34 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.56ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.69ms IncrementalHoareTripleChecker+Time [2021-11-05 16:00:59,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 1023 Invalid, 12 Unknown, 0 Unchecked, 1.56ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 76.69ms Time] [2021-11-05 16:00:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-11-05 16:00:59,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2921. [2021-11-05 16:00:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2918 states have (on average 1.4016449623029472) internal successors, (4090), 2920 states have internal predecessors, (4090), 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) [2021-11-05 16:00:59,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4090 transitions. [2021-11-05 16:00:59,109 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4090 transitions. Word has length 61 [2021-11-05 16:00:59,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:00:59,110 INFO L470 AbstractCegarLoop]: Abstraction has 2921 states and 4090 transitions. [2021-11-05 16:00:59,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-05 16:00:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4090 transitions. [2021-11-05 16:00:59,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-05 16:00:59,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:00:59,113 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:00:59,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 16:00:59,113 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:00:59,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:00:59,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1531221519, now seen corresponding path program 1 times [2021-11-05 16:00:59,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:00:59,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491994668] [2021-11-05 16:00:59,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:00:59,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:00:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:00:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:00:59,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:00:59,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491994668] [2021-11-05 16:00:59,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491994668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:00:59,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:00:59,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 16:00:59,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896787185] [2021-11-05 16:00:59,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:00:59,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 16:00:59,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:00:59,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 16:00:59,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 16:00:59,611 INFO L87 Difference]: Start difference. First operand 2921 states and 4090 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2021-11-05 16:01:00,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:00,855 INFO L93 Difference]: Finished difference Result 11655 states and 16064 transitions. [2021-11-05 16:01:00,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 16:01:00,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 69 [2021-11-05 16:01:00,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:00,887 INFO L225 Difference]: With dead ends: 11655 [2021-11-05 16:01:00,887 INFO L226 Difference]: Without dead ends: 8742 [2021-11-05 16:01:00,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 556.34ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-11-05 16:01:00,898 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 2987 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 458.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.04ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 535.82ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:00,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2987 Valid, 3604 Invalid, 154 Unknown, 0 Unchecked, 11.04ms Time], IncrementalHoareTripleChecker [20 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 535.82ms Time] [2021-11-05 16:01:00,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8742 states. [2021-11-05 16:01:01,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8742 to 3025. [2021-11-05 16:01:01,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3022 states have (on average 1.3904698874917274) internal successors, (4202), 3024 states have internal predecessors, (4202), 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) [2021-11-05 16:01:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4202 transitions. [2021-11-05 16:01:01,113 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4202 transitions. Word has length 69 [2021-11-05 16:01:01,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:01,114 INFO L470 AbstractCegarLoop]: Abstraction has 3025 states and 4202 transitions. [2021-11-05 16:01:01,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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) [2021-11-05 16:01:01,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4202 transitions. [2021-11-05 16:01:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 16:01:01,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:01,117 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:01,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 16:01:01,118 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:01,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash 605807179, now seen corresponding path program 1 times [2021-11-05 16:01:01,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:01:01,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113941041] [2021-11-05 16:01:01,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:01,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:01:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:01:01,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:01:01,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113941041] [2021-11-05 16:01:01,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113941041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:01,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:01,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 16:01:01,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469645733] [2021-11-05 16:01:01,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:01,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 16:01:01,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:01:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 16:01:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 16:01:01,684 INFO L87 Difference]: Start difference. First operand 3025 states and 4202 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-11-05 16:01:02,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:02,880 INFO L93 Difference]: Finished difference Result 10578 states and 14567 transitions. [2021-11-05 16:01:02,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 16:01:02,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 71 [2021-11-05 16:01:02,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:02,915 INFO L225 Difference]: With dead ends: 10578 [2021-11-05 16:01:02,915 INFO L226 Difference]: Without dead ends: 7561 [2021-11-05 16:01:02,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 642.73ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-05 16:01:02,923 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 2461 mSDsluCounter, 3552 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 399.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.61ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 443.57ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:02,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2461 Valid, 4130 Invalid, 173 Unknown, 0 Unchecked, 9.61ms Time], IncrementalHoareTripleChecker [13 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 443.57ms Time] [2021-11-05 16:01:02,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7561 states. [2021-11-05 16:01:03,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7561 to 3025. [2021-11-05 16:01:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3022 states have (on average 1.3904698874917274) internal successors, (4202), 3024 states have internal predecessors, (4202), 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) [2021-11-05 16:01:03,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4202 transitions. [2021-11-05 16:01:03,082 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4202 transitions. Word has length 71 [2021-11-05 16:01:03,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:03,082 INFO L470 AbstractCegarLoop]: Abstraction has 3025 states and 4202 transitions. [2021-11-05 16:01:03,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2021-11-05 16:01:03,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4202 transitions. [2021-11-05 16:01:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 16:01:03,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:03,084 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:03,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 16:01:03,084 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:03,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:03,085 INFO L85 PathProgramCache]: Analyzing trace with hash 449215055, now seen corresponding path program 1 times [2021-11-05 16:01:03,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:01:03,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972462136] [2021-11-05 16:01:03,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:03,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:01:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:01:03,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 16:01:03,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972462136] [2021-11-05 16:01:03,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972462136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:03,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:03,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 16:01:03,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249028830] [2021-11-05 16:01:03,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:03,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 16:01:03,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 16:01:03,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 16:01:03,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:03,396 INFO L87 Difference]: Start difference. First operand 3025 states and 4202 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-11-05 16:01:03,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:03,728 INFO L93 Difference]: Finished difference Result 8679 states and 12120 transitions. [2021-11-05 16:01:03,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 16:01:03,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 73 [2021-11-05 16:01:03,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:03,742 INFO L225 Difference]: With dead ends: 8679 [2021-11-05 16:01:03,743 INFO L226 Difference]: Without dead ends: 5646 [2021-11-05 16:01:03,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.96ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 16:01:03,751 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 463 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.94ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.08ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:03,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 1623 Invalid, 45 Unknown, 0 Unchecked, 2.94ms Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 130.08ms Time] [2021-11-05 16:01:03,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2021-11-05 16:01:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 3025. [2021-11-05 16:01:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3022 states have (on average 1.387822634017207) internal successors, (4194), 3024 states have internal predecessors, (4194), 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) [2021-11-05 16:01:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 4194 transitions. [2021-11-05 16:01:03,937 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 4194 transitions. Word has length 73 [2021-11-05 16:01:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:03,937 INFO L470 AbstractCegarLoop]: Abstraction has 3025 states and 4194 transitions. [2021-11-05 16:01:03,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-11-05 16:01:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 4194 transitions. [2021-11-05 16:01:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 16:01:03,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:03,939 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:03,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 16:01:03,939 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:03,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:03,939 INFO L85 PathProgramCache]: Analyzing trace with hash 77040683, now seen corresponding path program 1 times [2021-11-05 16:01:03,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 16:01:03,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798101801] [2021-11-05 16:01:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:03,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 16:01:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 16:01:05,117 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-05 16:01:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 16:01:06,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-05 16:01:06,341 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-05 16:01:06,342 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-05 16:01:06,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-05 16:01:06,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-05 16:01:06,346 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-05 16:01:06,347 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2021-11-05 16:01:06,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 16:01:06,350 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:06,354 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 16:01:06,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 04:01:06 BoogieIcfgContainer [2021-11-05 16:01:06,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 16:01:06,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 16:01:06,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 16:01:06,884 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 16:01:06,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:00:53" (3/4) ... [2021-11-05 16:01:06,886 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 16:01:06,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 16:01:06,887 INFO L158 Benchmark]: Toolchain (without parser) took 22862.57ms. Allocated memory was 71.3MB in the beginning and 620.8MB in the end (delta: 549.5MB). Free memory was 45.6MB in the beginning and 292.3MB in the end (delta: -246.7MB). Peak memory consumption was 300.9MB. Max. memory is 16.1GB. [2021-11-05 16:01:06,888 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 16:01:06,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1083.26ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 39.1MB in the end (delta: 6.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2021-11-05 16:01:06,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.82ms. Allocated memory is still 90.2MB. Free memory was 39.1MB in the beginning and 39.6MB in the end (delta: -421.0kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-05 16:01:06,888 INFO L158 Benchmark]: Boogie Preprocessor took 161.87ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 39.6MB in the beginning and 84.7MB in the end (delta: -45.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-11-05 16:01:06,889 INFO L158 Benchmark]: RCFGBuilder took 7783.18ms. Allocated memory was 138.4MB in the beginning and 314.6MB in the end (delta: 176.2MB). Free memory was 84.7MB in the beginning and 190.5MB in the end (delta: -105.8MB). Peak memory consumption was 194.4MB. Max. memory is 16.1GB. [2021-11-05 16:01:06,890 INFO L158 Benchmark]: TraceAbstraction took 13671.49ms. Allocated memory was 314.6MB in the beginning and 620.8MB in the end (delta: 306.2MB). Free memory was 190.5MB in the beginning and 293.3MB in the end (delta: -102.8MB). Peak memory consumption was 343.8MB. Max. memory is 16.1GB. [2021-11-05 16:01:06,890 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 620.8MB. Free memory was 293.3MB in the beginning and 292.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 16:01:06,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1083.26ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 39.1MB in the end (delta: 6.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.82ms. Allocated memory is still 90.2MB. Free memory was 39.1MB in the beginning and 39.6MB in the end (delta: -421.0kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 161.87ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 39.6MB in the beginning and 84.7MB in the end (delta: -45.1MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * RCFGBuilder took 7783.18ms. Allocated memory was 138.4MB in the beginning and 314.6MB in the end (delta: 176.2MB). Free memory was 84.7MB in the beginning and 190.5MB in the end (delta: -105.8MB). Peak memory consumption was 194.4MB. Max. memory is 16.1GB. * TraceAbstraction took 13671.49ms. Allocated memory was 314.6MB in the beginning and 620.8MB in the end (delta: 306.2MB). Free memory was 190.5MB in the beginning and 293.3MB in the end (delta: -102.8MB). Peak memory consumption was 343.8MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 620.8MB. Free memory was 293.3MB in the beginning and 292.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3735]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 3766. Possible FailurePath: [L3758] int ldv_state_variable_1 ; [L3759] int LDV_IN_INTERRUPT = 1; [L3760] int usb_counter ; [L3761] struct usb_interface *gtco_driverinfo_table_group1 ; [L3762] int ref_cnt ; [L3763] int ldv_state_variable_0 ; [L3830-L3844] static struct usb_device_id const gtco_usbid_table[6U] = { {3U, 1932U, 1024U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1932U, 1025U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1932U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1932U, 4097U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1932U, 4098U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L3845] struct usb_device_id const __mod_usb_device_table ; [L4829-L4834] static struct usb_driver gtco_driverinfo_table = {"gtco", & gtco_probe, & gtco_disconnect, 0, 0, 0, 0, 0, 0, (struct usb_device_id const *)(& gtco_usbid_table), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L4850] int ldv_retval_0 ; [L4851] int ldv_retval_1 ; [L5064] int INTERF_STATE = 0; [L5065] int SERIAL_STATE = 0; [L5066] void *usb_intfdata = 0; [L5067] struct urb *usb_urb = 0; [L5068] struct usb_device *usb_dev = 0; [L5069] int dev_counter = 0; [L5070] int completeFnIntCounter = 0; [L5071] int completeFnBulkCounter = 0; [L5072] void (*completeFnInt)(struct urb * ) ; [L5073] void (*completeFnBulk)(struct urb * ) ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4865] struct usb_device_id *ldvarg0 ; [L4866] void *tmp ; [L4867] int tmp___0 ; [L4868] int tmp___1 ; [L4869] int tmp___2 ; [L3700] void *p ; [L3701] void *tmp ; [L3702] int tmp___0 ; [L3704] tmp___0 = __VERIFIER_nondet_int() [L3705] COND TRUE tmp___0 != 0 [L3706] return ((void *)0); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4871] tmp = ldv_zalloc(32UL) [L4872] ldvarg0 = (struct usb_device_id *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4874] ldv_state_variable_1 = 0 [L4875] ref_cnt = 0 [L4876] ldv_state_variable_0 = 1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4878] tmp___0 = __VERIFIER_nondet_int() [L4880] case 0: [L4910] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4911] COND TRUE ldv_state_variable_0 != 0 [L4912] tmp___2 = __VERIFIER_nondet_int() [L4914] case 0: [L4922] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4923] COND TRUE ldv_state_variable_0 == 1 [L4837] int tmp ; [L5036] ldv_func_ret_type ldv_func_res ; [L5037] int tmp ; [L5370] return __VERIFIER_nondet_int(); [L5039] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L5040] ldv_func_res = tmp [L5041] ldv_state_variable_1 = 1 [L5042] usb_counter = 0 [L4856] void *tmp ; [L3700] void *p ; [L3701] void *tmp ; [L3702] int tmp___0 ; [L3704] tmp___0 = __VERIFIER_nondet_int() [L3705] COND TRUE tmp___0 != 0 [L3706] return ((void *)0); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4858] tmp = ldv_zalloc(1520UL) [L4859] gtco_driverinfo_table_group1 = (struct usb_interface *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5044] return (ldv_func_res); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4839] tmp = ldv_usb_register_driver_11(& gtco_driverinfo_table, & __this_module, "gtco") [L4840] return (tmp); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4924] ldv_retval_1 = gtco_driverinfo_table_init() [L4925] COND TRUE ldv_retval_1 == 0 [L4926] ldv_state_variable_0 = 3 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4929] COND FALSE !(ldv_retval_1 != 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4878] tmp___0 = __VERIFIER_nondet_int() [L4880] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4881] COND TRUE ldv_state_variable_1 != 0 [L4882] tmp___1 = __VERIFIER_nondet_int() [L4884] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4885] COND TRUE ldv_state_variable_1 == 1 [L4569] struct gtco *gtco ; [L4570] struct input_dev *input_dev ; [L4571] struct hid_descriptor *hid_desc ; [L4572] char *report ; [L4573] int result ; [L4574] int retry ; [L4575] int error ; [L4576] struct usb_endpoint_descriptor *endpoint ; [L4577] void *tmp ; [L4578] struct usb_device *tmp___0 ; [L4579] void *tmp___1 ; [L4580] struct _ddebug descriptor ; [L4581] long tmp___2 ; [L4582] struct _ddebug descriptor___0 ; [L4583] long tmp___3 ; [L4584] struct _ddebug descriptor___1 ; [L4585] long tmp___4 ; [L4586] struct _ddebug descriptor___2 ; [L4587] long tmp___5 ; [L4588] struct _ddebug descriptor___3 ; [L4589] long tmp___6 ; [L4590] int tmp___7 ; [L4591] struct _ddebug descriptor___4 ; [L4592] long tmp___8 ; [L4593] int tmp___9 ; [L4594] struct _ddebug descriptor___5 ; [L4595] long tmp___10 ; [L4596] void *tmp___11 ; [L4597] unsigned int tmp___12 ; [L4598] struct _ddebug descriptor___6 ; [L4599] long tmp___13 ; [L4600] unsigned int tmp___14 ; [L4602] result = 0 [L3667] void *tmp ; [L3658] void *tmp___2 ; [L3683] void *p ; [L3684] void *tmp ; [L3685] int tmp___0 ; [L3687] tmp___0 = __VERIFIER_nondet_int() [L3688] COND FALSE !(tmp___0 != 0) [L3691] tmp = malloc(size) [L3692] p = tmp [L3679] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3694] return (p); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3653] return ldv_malloc(size); [L3660] tmp___2 = __kmalloc(size, flags) [L3661] return (tmp___2); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3669] tmp = kmalloc(size, flags | 32768U) [L3670] return (tmp); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4603] tmp = kzalloc(152UL, 208U) [L4604] gtco = (struct gtco *)tmp [L3667] void *tmp ; [L3658] void *tmp___2 ; [L3683] void *p ; [L3684] void *tmp ; [L3685] int tmp___0 ; [L3687] tmp___0 = __VERIFIER_nondet_int() [L3688] COND FALSE !(tmp___0 != 0) [L3691] tmp = malloc(size) [L3692] p = tmp [L3679] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3694] return (p); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3653] return ldv_malloc(size); [L3660] tmp___2 = __kmalloc(size, flags) [L3661] return (tmp___2); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3669] tmp = kmalloc(size, flags | 32768U) [L3670] return (tmp); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3766] return kzalloc(sizeof(struct input_dev), 0x10u | 0x40u | 0x80u); [L4605] input_dev = input_allocate_device() [L4606] COND FALSE !((unsigned long )gtco == (unsigned long )((struct gtco *)0) || (unsigned long )input_dev == (unsigned long )((struct input_dev *)0)) [L4612] gtco->inputdevice = input_dev [L4956] struct usb_device *tmp ; [L5177] void *result ; [L5178] void *tmp ; [L3683] void *p ; [L3684] void *tmp ; [L3685] int tmp___0 ; [L3687] tmp___0 = __VERIFIER_nondet_int() [L3688] COND FALSE !(tmp___0 != 0) [L3691] tmp = malloc(size) [L3692] p = tmp [L3679] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3694] return (p); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5180] tmp = ldv_malloc(sizeof(struct usb_device)) [L5181] result = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5182] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5186] return (result); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4958] tmp = ldv_interface_to_usbdev() [L4959] return (tmp); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4613] tmp___0 = interface_to_usbdev(usbinterface) [L4980] struct usb_device *tmp ; [L5191] int tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5193] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) [L3717] int tmp ; [L3719] tmp = __VERIFIER_nondet_int() [L3720] return (tmp); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5194] tmp = ldv_undef_int() [L5195] COND TRUE \read(tmp) [L5196] dev_counter = dev_counter + 1 [L5197] usb_dev = data VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5205] return (usb_dev); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4982] tmp = ldv_get_dev(ldv_func_arg1) [L4983] return (tmp); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4614] gtco->usbdev = ldv_usb_get_dev_4(tmp___0) [L4615] gtco->intf = usbinterface [L4616] EXPR gtco->usbdev [L3683] void *p ; [L3684] void *tmp ; [L3685] int tmp___0 ; [L3687] tmp___0 = __VERIFIER_nondet_int() [L3688] COND TRUE tmp___0 != 0 [L3689] return ((void *)0); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5353] return ldv_malloc(0UL); [L4616] tmp___1 = usb_alloc_coherent(gtco->usbdev, 10UL, 208U, & gtco->buf_dma) [L4617] gtco->buffer = (unsigned char *)tmp___1 [L4618] EXPR gtco->buffer VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4618] COND TRUE (unsigned long )gtco->buffer == (unsigned long )((unsigned char *)0U) [L4620] error = -12 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); [L4807] return (error); VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4886] ldv_retval_0 = gtco_probe(gtco_driverinfo_table_group1, (struct usb_device_id const *)ldvarg0) [L4887] COND FALSE !(ldv_retval_0 == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4878] tmp___0 = __VERIFIER_nondet_int() [L4880] case 0: [L4910] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4911] COND TRUE ldv_state_variable_0 != 0 [L4912] tmp___2 = __VERIFIER_nondet_int() [L4914] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4915] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L5051] ldv_state_variable_1 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L4917] ldv_state_variable_0 = 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5283] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L5287] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L3735] reach_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={4103:4106}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, gtco_driverinfo_table={144:0}, gtco_driverinfo_table_group1={0:0}, gtco_usbid_table={168:0}, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=-12, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={0:0}, usb_urb={0:0}] - UnprovableResult [Line: 3735]: 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: 3735]: 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: 3735]: 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: 3735]: 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, 388 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 13091.10ms, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 36.65ms, AutomataDifference: 6011.48ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 15.33ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 9460 SdHoareTripleChecker+Valid, 3593.07ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9460 mSDsluCounter, 16934 SdHoareTripleChecker+Invalid, 3280.27ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10197 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 389 IncrementalHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 6737 mSDtfsCounter, 389 mSolverCounterSat, 46.88ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1411.28ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3025occurred in iteration=9, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 1096.32ms AutomataMinimizationTime, 11 MinimizatonAttempts, 12936 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 147.29ms SsaConstructionTime, 2284.38ms SatisfiabilityAnalysisTime, 2013.10ms InterpolantComputationTime, 506 NumberOfCodeBlocks, 506 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 29/29 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 [2021-11-05 16:01:06,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.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 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 16:01:08,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 16:01:08,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 16:01:08,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 16:01:08,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 16:01:08,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 16:01:08,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 16:01:08,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 16:01:08,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 16:01:08,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 16:01:08,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 16:01:08,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 16:01:08,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 16:01:08,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 16:01:08,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 16:01:08,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 16:01:08,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 16:01:08,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 16:01:08,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 16:01:08,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 16:01:08,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 16:01:08,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 16:01:08,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 16:01:08,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 16:01:08,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 16:01:08,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 16:01:08,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 16:01:08,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 16:01:08,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 16:01:08,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 16:01:08,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 16:01:08,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 16:01:08,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 16:01:08,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 16:01:08,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 16:01:08,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 16:01:08,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 16:01:08,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 16:01:08,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 16:01:08,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 16:01:08,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 16:01:08,897 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 16:01:08,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 16:01:08,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 16:01:08,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 16:01:08,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 16:01:08,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 16:01:08,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 16:01:08,941 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 16:01:08,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 16:01:08,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 16:01:08,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 16:01:08,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 16:01:08,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 16:01:08,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 16:01:08,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 16:01:08,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 16:01:08,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 16:01:08,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 16:01:08,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 16:01:08,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 16:01:08,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 16:01:08,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:01:08,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 16:01:08,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 16:01:08,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 16:01:08,944 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 16:01:08,944 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 16:01:08,944 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 16:01:08,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 16:01:08,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 16:01:08,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 16:01:08,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 16:01:08,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2021-11-05 16:01:09,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 16:01:09,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 16:01:09,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 16:01:09,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 16:01:09,259 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 16:01:09,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2021-11-05 16:01:09,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc16c81f/514724d9a9b64a8996560ae5e7d22bfa/FLAG3e063d2a8 [2021-11-05 16:01:10,008 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 16:01:10,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2021-11-05 16:01:10,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc16c81f/514724d9a9b64a8996560ae5e7d22bfa/FLAG3e063d2a8 [2021-11-05 16:01:10,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cc16c81f/514724d9a9b64a8996560ae5e7d22bfa [2021-11-05 16:01:10,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 16:01:10,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 16:01:10,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 16:01:10,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 16:01:10,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 16:01:10,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:01:10" (1/1) ... [2021-11-05 16:01:10,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eed8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:10, skipping insertion in model container [2021-11-05 16:01:10,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 04:01:10" (1/1) ... [2021-11-05 16:01:10,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 16:01:10,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 16:01:10,982 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2021-11-05 16:01:11,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:01:11,328 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 16:01:11,419 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2021-11-05 16:01:11,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 16:01:11,600 INFO L208 MainTranslator]: Completed translation [2021-11-05 16:01:11,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11 WrapperNode [2021-11-05 16:01:11,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 16:01:11,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 16:01:11,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 16:01:11,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 16:01:11,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 16:01:11,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 16:01:11,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 16:01:11,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 16:01:11,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 16:01:11,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 16:01:11,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 16:01:11,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 16:01:11,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (1/1) ... [2021-11-05 16:01:11,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 16:01:11,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 16:01:11,923 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) [2021-11-05 16:01:11,933 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 [2021-11-05 16:01:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 16:01:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-05 16:01:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 16:01:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-05 16:01:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 16:01:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-05 16:01:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-05 16:01:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 16:01:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 16:01:26,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 16:01:26,427 INFO L299 CfgBuilder]: Removed 310 assume(true) statements. [2021-11-05 16:01:26,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:01:26 BoogieIcfgContainer [2021-11-05 16:01:26,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 16:01:26,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 16:01:26,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 16:01:26,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 16:01:26,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 04:01:10" (1/3) ... [2021-11-05 16:01:26,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e03c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:01:26, skipping insertion in model container [2021-11-05 16:01:26,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 04:01:11" (2/3) ... [2021-11-05 16:01:26,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e03c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 04:01:26, skipping insertion in model container [2021-11-05 16:01:26,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 04:01:26" (3/3) ... [2021-11-05 16:01:26,437 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2021-11-05 16:01:26,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 16:01:26,443 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-05 16:01:26,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 16:01:26,515 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 [2021-11-05 16:01:26,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-05 16:01:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 387 states have internal predecessors, (574), 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) [2021-11-05 16:01:26,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 16:01:26,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:26,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:26,549 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:26,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1148713798, now seen corresponding path program 1 times [2021-11-05 16:01:26,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:26,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572493074] [2021-11-05 16:01:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:26,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:26,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:26,576 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) [2021-11-05 16:01:26,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 16:01:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:28,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 16:01:28,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:28,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:28,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:28,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:28,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572493074] [2021-11-05 16:01:28,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572493074] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:28,856 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:28,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 16:01:28,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554269473] [2021-11-05 16:01:28,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:28,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 16:01:28,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 16:01:28,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:28,882 INFO L87 Difference]: Start difference. First operand has 388 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 387 states have internal predecessors, (574), 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 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) [2021-11-05 16:01:31,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:01:31,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:31,331 INFO L93 Difference]: Finished difference Result 1468 states and 2191 transitions. [2021-11-05 16:01:31,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 16:01:31,337 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 [2021-11-05 16:01:31,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:31,355 INFO L225 Difference]: With dead ends: 1468 [2021-11-05 16:01:31,356 INFO L226 Difference]: Without dead ends: 1069 [2021-11-05 16:01:31,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.18ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:31,371 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1011 mSDsluCounter, 1496 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2249.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.64ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2334.31ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:31,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 2033 Invalid, 31 Unknown, 0 Unchecked, 10.64ms Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2334.31ms Time] [2021-11-05 16:01:31,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2021-11-05 16:01:31,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1069. [2021-11-05 16:01:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1064 states have (on average 1.4078947368421053) internal successors, (1498), 1068 states have internal predecessors, (1498), 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) [2021-11-05 16:01:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1498 transitions. [2021-11-05 16:01:31,456 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1498 transitions. Word has length 15 [2021-11-05 16:01:31,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:31,457 INFO L470 AbstractCegarLoop]: Abstraction has 1069 states and 1498 transitions. [2021-11-05 16:01:31,457 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) [2021-11-05 16:01:31,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1498 transitions. [2021-11-05 16:01:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 16:01:31,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:31,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:31,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 16:01:31,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:31,685 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:31,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1888760138, now seen corresponding path program 1 times [2021-11-05 16:01:31,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:31,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362792386] [2021-11-05 16:01:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:31,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:31,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:31,696 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) [2021-11-05 16:01:31,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 16:01:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:33,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 16:01:33,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:33,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:33,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:33,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362792386] [2021-11-05 16:01:33,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362792386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:33,823 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:33,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 16:01:33,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236517735] [2021-11-05 16:01:33,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:33,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:01:33,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:33,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:01:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:33,825 INFO L87 Difference]: Start difference. First operand 1069 states and 1498 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2021-11-05 16:01:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:34,063 INFO L93 Difference]: Finished difference Result 1099 states and 1526 transitions. [2021-11-05 16:01:34,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:01:34,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-05 16:01:34,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:34,072 INFO L225 Difference]: With dead ends: 1099 [2021-11-05 16:01:34,073 INFO L226 Difference]: Without dead ends: 1084 [2021-11-05 16:01:34,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:34,076 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 521 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 166.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 214.77ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:34,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 553 Invalid, 6 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 214.77ms Time] [2021-11-05 16:01:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2021-11-05 16:01:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1069. [2021-11-05 16:01:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1064 states have (on average 1.406954887218045) internal successors, (1497), 1068 states have internal predecessors, (1497), 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) [2021-11-05 16:01:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1497 transitions. [2021-11-05 16:01:34,137 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1497 transitions. Word has length 22 [2021-11-05 16:01:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:34,138 INFO L470 AbstractCegarLoop]: Abstraction has 1069 states and 1497 transitions. [2021-11-05 16:01:34,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-05 16:01:34,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1497 transitions. [2021-11-05 16:01:34,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 16:01:34,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:34,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:34,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 16:01:34,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:34,348 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:34,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1888700556, now seen corresponding path program 1 times [2021-11-05 16:01:34,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:34,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38644672] [2021-11-05 16:01:34,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:34,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:34,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:34,355 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) [2021-11-05 16:01:34,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 16:01:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:36,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 16:01:36,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:36,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:36,904 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:36,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38644672] [2021-11-05 16:01:36,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38644672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:36,904 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:36,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-05 16:01:36,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820094718] [2021-11-05 16:01:36,905 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:36,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 16:01:36,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:36,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 16:01:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:36,906 INFO L87 Difference]: Start difference. First operand 1069 states and 1497 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-05 16:01:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:37,102 INFO L93 Difference]: Finished difference Result 3189 states and 4472 transitions. [2021-11-05 16:01:37,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 16:01:37,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 22 [2021-11-05 16:01:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:37,113 INFO L225 Difference]: With dead ends: 3189 [2021-11-05 16:01:37,113 INFO L226 Difference]: Without dead ends: 2128 [2021-11-05 16:01:37,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.01ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:37,120 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 512 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.62ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.00ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:37,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 1523 Invalid, 26 Unknown, 0 Unchecked, 3.62ms Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 139.00ms Time] [2021-11-05 16:01:37,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2021-11-05 16:01:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2116. [2021-11-05 16:01:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2116 states, 2111 states have (on average 1.4050213169114163) internal successors, (2966), 2115 states have internal predecessors, (2966), 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) [2021-11-05 16:01:37,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2116 states to 2116 states and 2966 transitions. [2021-11-05 16:01:37,192 INFO L78 Accepts]: Start accepts. Automaton has 2116 states and 2966 transitions. Word has length 22 [2021-11-05 16:01:37,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:37,193 INFO L470 AbstractCegarLoop]: Abstraction has 2116 states and 2966 transitions. [2021-11-05 16:01:37,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-11-05 16:01:37,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2116 states and 2966 transitions. [2021-11-05 16:01:37,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-05 16:01:37,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:37,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:37,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-05 16:01:37,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:37,411 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:37,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:37,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1579824603, now seen corresponding path program 1 times [2021-11-05 16:01:37,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:37,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709720315] [2021-11-05 16:01:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:37,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:37,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:37,417 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) [2021-11-05 16:01:37,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 16:01:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:39,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 16:01:39,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:39,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:39,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:39,890 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:39,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709720315] [2021-11-05 16:01:39,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709720315] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:39,890 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:39,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-05 16:01:39,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879929474] [2021-11-05 16:01:39,891 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:39,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 16:01:39,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:39,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 16:01:39,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:39,892 INFO L87 Difference]: Start difference. First operand 2116 states and 2966 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-05 16:01:40,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:40,150 INFO L93 Difference]: Finished difference Result 8403 states and 11785 transitions. [2021-11-05 16:01:40,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 16:01:40,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-05 16:01:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:40,180 INFO L225 Difference]: With dead ends: 8403 [2021-11-05 16:01:40,180 INFO L226 Difference]: Without dead ends: 6295 [2021-11-05 16:01:40,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.29ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 16:01:40,192 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 992 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.64ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.12ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:40,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 2435 Invalid, 24 Unknown, 0 Unchecked, 4.64ms Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 108.12ms Time] [2021-11-05 16:01:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2021-11-05 16:01:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 4193. [2021-11-05 16:01:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4193 states, 4188 states have (on average 1.4030563514804202) internal successors, (5876), 4192 states have internal predecessors, (5876), 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) [2021-11-05 16:01:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 5876 transitions. [2021-11-05 16:01:40,387 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 5876 transitions. Word has length 23 [2021-11-05 16:01:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:40,388 INFO L470 AbstractCegarLoop]: Abstraction has 4193 states and 5876 transitions. [2021-11-05 16:01:40,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-05 16:01:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 5876 transitions. [2021-11-05 16:01:40,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-05 16:01:40,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:40,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:40,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-05 16:01:40,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:40,612 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:40,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:40,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1729922142, now seen corresponding path program 1 times [2021-11-05 16:01:40,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:40,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116377028] [2021-11-05 16:01:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:40,615 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:40,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:40,616 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) [2021-11-05 16:01:40,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 16:01:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:42,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 16:01:42,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:42,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:42,998 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:42,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116377028] [2021-11-05 16:01:42,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116377028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:42,998 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:42,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 16:01:42,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139054469] [2021-11-05 16:01:42,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:42,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:01:42,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:01:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:43,000 INFO L87 Difference]: Start difference. First operand 4193 states and 5876 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-05 16:01:43,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:43,172 INFO L93 Difference]: Finished difference Result 6287 states and 8808 transitions. [2021-11-05 16:01:43,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:01:43,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2021-11-05 16:01:43,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:43,198 INFO L225 Difference]: With dead ends: 6287 [2021-11-05 16:01:43,199 INFO L226 Difference]: Without dead ends: 6285 [2021-11-05 16:01:43,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:43,205 INFO L933 BasicCegarLoop]: 930 mSDtfsCounter, 496 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.25ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:43,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [496 Valid, 1438 Invalid, 6 Unknown, 0 Unchecked, 2.50ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 25.25ms Time] [2021-11-05 16:01:43,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2021-11-05 16:01:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 6283. [2021-11-05 16:01:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6283 states, 6278 states have (on average 1.4025167250716788) internal successors, (8805), 6282 states have internal predecessors, (8805), 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) [2021-11-05 16:01:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 8805 transitions. [2021-11-05 16:01:43,505 INFO L78 Accepts]: Start accepts. Automaton has 6283 states and 8805 transitions. Word has length 24 [2021-11-05 16:01:43,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:43,505 INFO L470 AbstractCegarLoop]: Abstraction has 6283 states and 8805 transitions. [2021-11-05 16:01:43,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-05 16:01:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6283 states and 8805 transitions. [2021-11-05 16:01:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 16:01:43,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:43,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:43,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-05 16:01:43,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:43,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2087978565, now seen corresponding path program 1 times [2021-11-05 16:01:43,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:43,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801116213] [2021-11-05 16:01:43,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:43,722 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:43,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:43,724 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) [2021-11-05 16:01:43,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 16:01:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:45,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 16:01:45,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:45,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:45,945 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:45,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801116213] [2021-11-05 16:01:45,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801116213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:45,945 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:45,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 16:01:45,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15057466] [2021-11-05 16:01:45,946 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:45,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:01:45,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:01:45,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:45,947 INFO L87 Difference]: Start difference. First operand 6283 states and 8805 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 16:01:46,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:46,074 INFO L93 Difference]: Finished difference Result 6283 states and 8805 transitions. [2021-11-05 16:01:46,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:01:46,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2021-11-05 16:01:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:46,096 INFO L225 Difference]: With dead ends: 6283 [2021-11-05 16:01:46,096 INFO L226 Difference]: Without dead ends: 6281 [2021-11-05 16:01:46,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:46,101 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 501 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.23ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:46,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 3.23ms Time] [2021-11-05 16:01:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-11-05 16:01:46,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 6281. [2021-11-05 16:01:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6281 states, 6277 states have (on average 1.4024215389517285) internal successors, (8803), 6280 states have internal predecessors, (8803), 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) [2021-11-05 16:01:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6281 states to 6281 states and 8803 transitions. [2021-11-05 16:01:46,367 INFO L78 Accepts]: Start accepts. Automaton has 6281 states and 8803 transitions. Word has length 25 [2021-11-05 16:01:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:46,368 INFO L470 AbstractCegarLoop]: Abstraction has 6281 states and 8803 transitions. [2021-11-05 16:01:46,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2021-11-05 16:01:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6281 states and 8803 transitions. [2021-11-05 16:01:46,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 16:01:46,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:46,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:46,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 16:01:46,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:46,584 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:46,584 INFO L85 PathProgramCache]: Analyzing trace with hash 302825800, now seen corresponding path program 1 times [2021-11-05 16:01:46,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:46,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991021505] [2021-11-05 16:01:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:46,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:46,588 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) [2021-11-05 16:01:46,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 16:01:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:48,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 16:01:48,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:48,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:48,949 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:48,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991021505] [2021-11-05 16:01:48,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991021505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:48,949 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:48,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 16:01:48,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567379681] [2021-11-05 16:01:48,949 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:48,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:01:48,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:48,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:01:48,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:48,950 INFO L87 Difference]: Start difference. First operand 6281 states and 8803 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-11-05 16:01:49,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:49,075 INFO L93 Difference]: Finished difference Result 6281 states and 8803 transitions. [2021-11-05 16:01:49,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:01:49,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2021-11-05 16:01:49,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:49,106 INFO L225 Difference]: With dead ends: 6281 [2021-11-05 16:01:49,107 INFO L226 Difference]: Without dead ends: 6272 [2021-11-05 16:01:49,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:49,111 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 498 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:49,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 16:01:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6272 states. [2021-11-05 16:01:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6272 to 6272. [2021-11-05 16:01:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6272 states, 6269 states have (on average 1.4022970170681128) internal successors, (8791), 6271 states have internal predecessors, (8791), 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) [2021-11-05 16:01:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6272 states to 6272 states and 8791 transitions. [2021-11-05 16:01:49,353 INFO L78 Accepts]: Start accepts. Automaton has 6272 states and 8791 transitions. Word has length 26 [2021-11-05 16:01:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:49,353 INFO L470 AbstractCegarLoop]: Abstraction has 6272 states and 8791 transitions. [2021-11-05 16:01:49,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-11-05 16:01:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 6272 states and 8791 transitions. [2021-11-05 16:01:49,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-05 16:01:49,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:49,361 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:49,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-05 16:01:49,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:49,563 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:49,564 INFO L85 PathProgramCache]: Analyzing trace with hash -67576925, now seen corresponding path program 1 times [2021-11-05 16:01:49,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:49,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246558764] [2021-11-05 16:01:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:49,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:49,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:49,568 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) [2021-11-05 16:01:49,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-05 16:01:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:51,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 16:01:51,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:51,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 16:01:52,126 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:52,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246558764] [2021-11-05 16:01:52,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246558764] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:52,126 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:52,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 16:01:52,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436386695] [2021-11-05 16:01:52,127 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:52,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 16:01:52,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:52,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 16:01:52,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:52,128 INFO L87 Difference]: Start difference. First operand 6272 states and 8791 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-05 16:01:52,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:01:52,606 INFO L93 Difference]: Finished difference Result 12795 states and 17951 transitions. [2021-11-05 16:01:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 16:01:52,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2021-11-05 16:01:52,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:01:52,623 INFO L225 Difference]: With dead ends: 12795 [2021-11-05 16:01:52,623 INFO L226 Difference]: Without dead ends: 6531 [2021-11-05 16:01:52,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.97ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 16:01:52,635 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 34 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 262.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 323.10ms IncrementalHoareTripleChecker+Time [2021-11-05 16:01:52,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 1023 Invalid, 12 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 323.10ms Time] [2021-11-05 16:01:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6531 states. [2021-11-05 16:01:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6531 to 6487. [2021-11-05 16:01:52,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6487 states, 6484 states have (on average 1.4036088834053053) internal successors, (9101), 6486 states have internal predecessors, (9101), 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) [2021-11-05 16:01:52,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6487 states to 6487 states and 9101 transitions. [2021-11-05 16:01:52,904 INFO L78 Accepts]: Start accepts. Automaton has 6487 states and 9101 transitions. Word has length 61 [2021-11-05 16:01:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:01:52,904 INFO L470 AbstractCegarLoop]: Abstraction has 6487 states and 9101 transitions. [2021-11-05 16:01:52,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2021-11-05 16:01:52,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6487 states and 9101 transitions. [2021-11-05 16:01:52,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-05 16:01:52,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:01:52,906 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:01:52,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-05 16:01:53,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:01:53,120 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:01:53,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:01:53,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1531221519, now seen corresponding path program 1 times [2021-11-05 16:01:53,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:01:53,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044763319] [2021-11-05 16:01:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:01:53,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:01:53,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:01:53,124 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) [2021-11-05 16:01:53,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-05 16:01:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:01:55,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-05 16:01:55,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:01:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:01:55,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:01:56,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:01:56,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:01:56,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044763319] [2021-11-05 16:01:56,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044763319] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:01:56,441 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:01:56,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-05 16:01:56,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664968527] [2021-11-05 16:01:56,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:01:56,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 16:01:56,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:01:56,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 16:01:56,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-05 16:01:56,442 INFO L87 Difference]: Start difference. First operand 6487 states and 9101 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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) [2021-11-05 16:02:01,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:02:03,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:02:04,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 16:02:05,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:02:05,138 INFO L93 Difference]: Finished difference Result 25717 states and 35555 transitions. [2021-11-05 16:02:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 16:02:05,145 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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 69 [2021-11-05 16:02:05,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:02:05,187 INFO L225 Difference]: With dead ends: 25717 [2021-11-05 16:02:05,188 INFO L226 Difference]: Without dead ends: 19238 [2021-11-05 16:02:05,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1088.54ms TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2021-11-05 16:02:05,202 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 5825 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7120.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5825 SdHoareTripleChecker+Valid, 4142 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.46ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7372.13ms IncrementalHoareTripleChecker+Time [2021-11-05 16:02:05,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5825 Valid, 4142 Invalid, 210 Unknown, 0 Unchecked, 14.46ms Time], IncrementalHoareTripleChecker [40 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 7372.13ms Time] [2021-11-05 16:02:05,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19238 states. [2021-11-05 16:02:05,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19238 to 6721. [2021-11-05 16:02:05,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6718 states have (on average 1.392229830306639) internal successors, (9353), 6720 states have internal predecessors, (9353), 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) [2021-11-05 16:02:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9353 transitions. [2021-11-05 16:02:05,589 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9353 transitions. Word has length 69 [2021-11-05 16:02:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:02:05,590 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 9353 transitions. [2021-11-05 16:02:05,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 states have internal predecessors, (80), 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) [2021-11-05 16:02:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9353 transitions. [2021-11-05 16:02:05,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 16:02:05,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:02:05,592 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:02:05,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-05 16:02:05,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:02:05,808 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:02:05,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:02:05,808 INFO L85 PathProgramCache]: Analyzing trace with hash 605807179, now seen corresponding path program 1 times [2021-11-05 16:02:05,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:02:05,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347431624] [2021-11-05 16:02:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:02:05,811 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:02:05,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:02:05,812 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) [2021-11-05 16:02:05,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-05 16:02:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:02:07,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-05 16:02:07,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:02:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:02:08,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:02:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:02:09,060 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:02:09,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347431624] [2021-11-05 16:02:09,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347431624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:02:09,060 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:02:09,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-05 16:02:09,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361671541] [2021-11-05 16:02:09,061 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:02:09,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 16:02:09,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:02:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 16:02:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-05 16:02:09,062 INFO L87 Difference]: Start difference. First operand 6721 states and 9353 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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) [2021-11-05 16:02:14,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:02:14,102 INFO L93 Difference]: Finished difference Result 23384 states and 32304 transitions. [2021-11-05 16:02:14,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 16:02:14,103 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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 71 [2021-11-05 16:02:14,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:02:14,140 INFO L225 Difference]: With dead ends: 23384 [2021-11-05 16:02:14,140 INFO L226 Difference]: Without dead ends: 16671 [2021-11-05 16:02:14,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1367.61ms TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2021-11-05 16:02:14,157 INFO L933 BasicCegarLoop]: 578 mSDtfsCounter, 4295 mSDsluCounter, 4759 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3426.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4295 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.52ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3614.08ms IncrementalHoareTripleChecker+Time [2021-11-05 16:02:14,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4295 Valid, 5337 Invalid, 237 Unknown, 0 Unchecked, 8.52ms Time], IncrementalHoareTripleChecker [19 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 3614.08ms Time] [2021-11-05 16:02:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16671 states. [2021-11-05 16:02:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16671 to 6721. [2021-11-05 16:02:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6718 states have (on average 1.392229830306639) internal successors, (9353), 6720 states have internal predecessors, (9353), 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) [2021-11-05 16:02:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9353 transitions. [2021-11-05 16:02:14,611 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9353 transitions. Word has length 71 [2021-11-05 16:02:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:02:14,611 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 9353 transitions. [2021-11-05 16:02:14,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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) [2021-11-05 16:02:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9353 transitions. [2021-11-05 16:02:14,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 16:02:14,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:02:14,614 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:02:14,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-05 16:02:14,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:02:14,823 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:02:14,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:02:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash 449215055, now seen corresponding path program 1 times [2021-11-05 16:02:14,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:02:14,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489342252] [2021-11-05 16:02:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:02:14,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:02:14,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:02:14,827 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) [2021-11-05 16:02:14,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-05 16:02:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 16:02:17,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 16:02:17,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 16:02:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:02:17,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 16:02:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 16:02:17,605 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 16:02:17,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489342252] [2021-11-05 16:02:17,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489342252] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 16:02:17,606 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 16:02:17,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-05 16:02:17,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662273572] [2021-11-05 16:02:17,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 16:02:17,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 16:02:17,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 16:02:17,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 16:02:17,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 16:02:17,607 INFO L87 Difference]: Start difference. First operand 6721 states and 9353 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2021-11-05 16:02:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 16:02:18,752 INFO L93 Difference]: Finished difference Result 19307 states and 27015 transitions. [2021-11-05 16:02:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 16:02:18,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 73 [2021-11-05 16:02:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 16:02:18,782 INFO L225 Difference]: With dead ends: 19307 [2021-11-05 16:02:18,783 INFO L226 Difference]: Without dead ends: 12558 [2021-11-05 16:02:18,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 160.77ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 16:02:18,794 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 463 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 475.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.90ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 533.14ms IncrementalHoareTripleChecker+Time [2021-11-05 16:02:18,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2115 Invalid, 67 Unknown, 0 Unchecked, 2.90ms Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 533.14ms Time] [2021-11-05 16:02:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12558 states. [2021-11-05 16:02:19,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12558 to 6721. [2021-11-05 16:02:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6718 states have (on average 1.3895504614468592) internal successors, (9335), 6720 states have internal predecessors, (9335), 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) [2021-11-05 16:02:19,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9335 transitions. [2021-11-05 16:02:19,149 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9335 transitions. Word has length 73 [2021-11-05 16:02:19,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 16:02:19,150 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 9335 transitions. [2021-11-05 16:02:19,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2021-11-05 16:02:19,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9335 transitions. [2021-11-05 16:02:19,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 16:02:19,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 16:02:19,152 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 16:02:19,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-05 16:02:19,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 16:02:19,367 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-05 16:02:19,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 16:02:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash 77040683, now seen corresponding path program 1 times [2021-11-05 16:02:19,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 16:02:19,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823075143] [2021-11-05 16:02:19,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 16:02:19,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 16:02:19,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 16:02:19,371 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 16:02:19,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-05 16:14:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-05 16:14:39,100 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Killed by 15