./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 17:07:40,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 17:07:40,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 17:07:40,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 17:07:40,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 17:07:40,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 17:07:40,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 17:07:40,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 17:07:40,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 17:07:40,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 17:07:40,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 17:07:40,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 17:07:40,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 17:07:40,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 17:07:40,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 17:07:40,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 17:07:40,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 17:07:40,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 17:07:40,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 17:07:40,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 17:07:40,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 17:07:40,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 17:07:40,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 17:07:40,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 17:07:40,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 17:07:40,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 17:07:40,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 17:07:40,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 17:07:40,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 17:07:40,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 17:07:40,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 17:07:40,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 17:07:40,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 17:07:40,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 17:07:40,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 17:07:40,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 17:07:40,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 17:07:40,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 17:07:40,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 17:07:40,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 17:07:40,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 17:07:40,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 17:07:40,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 17:07:40,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 17:07:40,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 17:07:40,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 17:07:40,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 17:07:40,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 17:07:40,891 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 17:07:40,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 17:07:40,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 17:07:40,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 17:07:40,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 17:07:40,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 17:07:40,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 17:07:40,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 17:07:40,893 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 17:07:40,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 17:07:40,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 17:07:40,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 17:07:40,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 17:07:40,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 17:07:40,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 17:07:40,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 17:07:40,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 17:07:40,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 17:07:40,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 17:07:40,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 17:07:40,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 17:07:40,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 17:07:40,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 17:07:40,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 [2021-11-02 17:07:41,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 17:07:41,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 17:07:41,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 17:07:41,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 17:07:41,143 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 17:07:41,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2021-11-02 17:07:41,202 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d11dc71/a9f878c0b5d64818a5f67ff03dd44e67/FLAGafb026080 [2021-11-02 17:07:41,700 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 17:07:41,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2021-11-02 17:07:41,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d11dc71/a9f878c0b5d64818a5f67ff03dd44e67/FLAGafb026080 [2021-11-02 17:07:42,232 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5d11dc71/a9f878c0b5d64818a5f67ff03dd44e67 [2021-11-02 17:07:42,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 17:07:42,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 17:07:42,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 17:07:42,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 17:07:42,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 17:07:42,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 05:07:42" (1/1) ... [2021-11-02 17:07:42,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a260243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:42, skipping insertion in model container [2021-11-02 17:07:42,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 05:07:42" (1/1) ... [2021-11-02 17:07:42,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 17:07:42,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 17:07:42,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2021-11-02 17:07:42,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 17:07:43,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 17:07:43,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i[168201,168214] [2021-11-02 17:07:43,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 17:07:43,442 INFO L208 MainTranslator]: Completed translation [2021-11-02 17:07:43,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43 WrapperNode [2021-11-02 17:07:43,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 17:07:43,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 17:07:43,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 17:07:43,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 17:07:43,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:43,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 17:07:44,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 17:07:44,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 17:07:44,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 17:07:44,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 17:07:44,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 17:07:44,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 17:07:44,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 17:07:44,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (1/1) ... [2021-11-02 17:07:44,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 17:07:44,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 17:07:44,793 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) [2021-11-02 17:07:44,842 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 [2021-11-02 17:07:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 17:07:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 17:07:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 17:07:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 17:07:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 17:07:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 17:07:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 17:07:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 17:07:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 17:07:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 17:07:44,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 17:07:52,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 17:07:52,140 INFO L299 CfgBuilder]: Removed 4512 assume(true) statements. [2021-11-02 17:07:52,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 05:07:52 BoogieIcfgContainer [2021-11-02 17:07:52,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 17:07:52,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 17:07:52,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 17:07:52,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 17:07:52,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 05:07:42" (1/3) ... [2021-11-02 17:07:52,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c0878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 05:07:52, skipping insertion in model container [2021-11-02 17:07:52,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 05:07:43" (2/3) ... [2021-11-02 17:07:52,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c0878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 05:07:52, skipping insertion in model container [2021-11-02 17:07:52,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 05:07:52" (3/3) ... [2021-11-02 17:07:52,150 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2021-11-02 17:07:52,153 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 17:07:52,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2021-11-02 17:07:52,210 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 17:07:52,215 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 [2021-11-02 17:07:52,215 INFO L340 AbstractCegarLoop]: Starting to check reachability of 154 error locations. [2021-11-02 17:07:52,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 4236 states, 4081 states have (on average 1.3795638323940211) internal successors, (5630), 4235 states have internal predecessors, (5630), 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) [2021-11-02 17:07:52,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-02 17:07:52,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:07:52,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 17:07:52,271 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:07:52,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:07:52,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2137890712, now seen corresponding path program 1 times [2021-11-02 17:07:52,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:07:52,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761086917] [2021-11-02 17:07:52,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:07:52,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:07:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:07:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:07:52,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:07:52,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761086917] [2021-11-02 17:07:52,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761086917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:07:52,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:07:52,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:07:52,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237116505] [2021-11-02 17:07:52,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:07:52,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:07:52,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:07:52,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:07:52,854 INFO L87 Difference]: Start difference. First operand has 4236 states, 4081 states have (on average 1.3795638323940211) internal successors, (5630), 4235 states have internal predecessors, (5630), 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 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:07:54,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:08:23,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:08:23,643 INFO L93 Difference]: Finished difference Result 12642 states and 16807 transitions. [2021-11-02 17:08:23,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:08:23,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-02 17:08:23,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:08:23,696 INFO L225 Difference]: With dead ends: 12642 [2021-11-02 17:08:23,697 INFO L226 Difference]: Without dead ends: 8401 [2021-11-02 17:08:23,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:08:23,717 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5265 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 10698 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26779.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5265 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 90.62ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10698 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29535.86ms IncrementalHoareTripleChecker+Time [2021-11-02 17:08:23,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5265 Valid, 0 Invalid, 10700 Unknown, 0 Unchecked, 90.62ms Time], IncrementalHoareTripleChecker [1 Valid, 10698 Invalid, 1 Unknown, 0 Unchecked, 29535.86ms Time] [2021-11-02 17:08:23,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8401 states. [2021-11-02 17:08:23,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8401 to 8092. [2021-11-02 17:08:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8092 states, 7938 states have (on average 1.3169564121945074) internal successors, (10454), 8091 states have internal predecessors, (10454), 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) [2021-11-02 17:08:23,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8092 states to 8092 states and 10454 transitions. [2021-11-02 17:08:23,968 INFO L78 Accepts]: Start accepts. Automaton has 8092 states and 10454 transitions. Word has length 18 [2021-11-02 17:08:23,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:08:23,969 INFO L470 AbstractCegarLoop]: Abstraction has 8092 states and 10454 transitions. [2021-11-02 17:08:23,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:08:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8092 states and 10454 transitions. [2021-11-02 17:08:23,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-02 17:08:23,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:08:23,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 17:08:23,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 17:08:23,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:08:23,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:08:23,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2012881103, now seen corresponding path program 1 times [2021-11-02 17:08:23,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:08:23,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13025893] [2021-11-02 17:08:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:08:23,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:08:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:08:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:08:24,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:08:24,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13025893] [2021-11-02 17:08:24,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13025893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:08:24,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:08:24,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:08:24,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857460334] [2021-11-02 17:08:24,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:08:24,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:08:24,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:08:24,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:08:24,343 INFO L87 Difference]: Start difference. First operand 8092 states and 10454 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:08:26,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:08:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:08:55,642 INFO L93 Difference]: Finished difference Result 24152 states and 31206 transitions. [2021-11-02 17:08:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:08:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-02 17:08:55,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:08:55,702 INFO L225 Difference]: With dead ends: 24152 [2021-11-02 17:08:55,703 INFO L226 Difference]: Without dead ends: 16063 [2021-11-02 17:08:55,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:08:55,724 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5258 mSDsluCounter, 5338 mSDsCounter, 0 mSdLazyCounter, 10765 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27455.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5258 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10765 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30346.18ms IncrementalHoareTripleChecker+Time [2021-11-02 17:08:55,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5258 Valid, 0 Invalid, 10767 Unknown, 0 Unchecked, 58.12ms Time], IncrementalHoareTripleChecker [1 Valid, 10765 Invalid, 1 Unknown, 0 Unchecked, 30346.18ms Time] [2021-11-02 17:08:55,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16063 states. [2021-11-02 17:08:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16063 to 15754. [2021-11-02 17:08:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15754 states, 15600 states have (on average 1.3200641025641027) internal successors, (20593), 15753 states have internal predecessors, (20593), 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) [2021-11-02 17:08:56,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15754 states to 15754 states and 20593 transitions. [2021-11-02 17:08:56,262 INFO L78 Accepts]: Start accepts. Automaton has 15754 states and 20593 transitions. Word has length 19 [2021-11-02 17:08:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:08:56,263 INFO L470 AbstractCegarLoop]: Abstraction has 15754 states and 20593 transitions. [2021-11-02 17:08:56,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:08:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 15754 states and 20593 transitions. [2021-11-02 17:08:56,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-02 17:08:56,264 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:08:56,264 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] [2021-11-02 17:08:56,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 17:08:56,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:08:56,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:08:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash 65553205, now seen corresponding path program 1 times [2021-11-02 17:08:56,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:08:56,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189364930] [2021-11-02 17:08:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:08:56,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:08:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:08:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:08:56,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:08:56,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189364930] [2021-11-02 17:08:56,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189364930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:08:56,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:08:56,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:08:56,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386847945] [2021-11-02 17:08:56,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:08:56,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:08:56,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:08:56,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:08:56,604 INFO L87 Difference]: Start difference. First operand 15754 states and 20593 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) [2021-11-02 17:08:58,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:09:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:09:30,674 INFO L93 Difference]: Finished difference Result 47028 states and 61483 transitions. [2021-11-02 17:09:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:09:30,675 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 [2021-11-02 17:09:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:09:30,774 INFO L225 Difference]: With dead ends: 47028 [2021-11-02 17:09:30,774 INFO L226 Difference]: Without dead ends: 31277 [2021-11-02 17:09:30,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:09:30,802 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5257 mSDsluCounter, 5338 mSDsCounter, 0 mSdLazyCounter, 10842 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29335.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5257 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.81ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32883.79ms IncrementalHoareTripleChecker+Time [2021-11-02 17:09:30,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5257 Valid, 0 Invalid, 10844 Unknown, 0 Unchecked, 54.81ms Time], IncrementalHoareTripleChecker [1 Valid, 10842 Invalid, 1 Unknown, 0 Unchecked, 32883.79ms Time] [2021-11-02 17:09:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31277 states. [2021-11-02 17:09:31,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31277 to 30968. [2021-11-02 17:09:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30968 states, 30814 states have (on average 1.3217693256312066) internal successors, (40729), 30967 states have internal predecessors, (40729), 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) [2021-11-02 17:09:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30968 states to 30968 states and 40729 transitions. [2021-11-02 17:09:31,348 INFO L78 Accepts]: Start accepts. Automaton has 30968 states and 40729 transitions. Word has length 22 [2021-11-02 17:09:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:09:31,348 INFO L470 AbstractCegarLoop]: Abstraction has 30968 states and 40729 transitions. [2021-11-02 17:09:31,348 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) [2021-11-02 17:09:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 30968 states and 40729 transitions. [2021-11-02 17:09:31,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-02 17:09:31,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:09:31,350 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] [2021-11-02 17:09:31,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 17:09:31,351 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:09:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:09:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1107483654, now seen corresponding path program 1 times [2021-11-02 17:09:31,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:09:31,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3237596] [2021-11-02 17:09:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:09:31,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:09:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:09:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:09:31,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:09:31,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3237596] [2021-11-02 17:09:31,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3237596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:09:31,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:09:31,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:09:31,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176506531] [2021-11-02 17:09:31,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:09:31,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:09:31,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:09:31,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:09:31,621 INFO L87 Difference]: Start difference. First operand 30968 states and 40729 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 17:09:33,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:10:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:10:06,076 INFO L93 Difference]: Finished difference Result 92542 states and 121723 transitions. [2021-11-02 17:10:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:10:06,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 [2021-11-02 17:10:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:10:06,195 INFO L225 Difference]: With dead ends: 92542 [2021-11-02 17:10:06,195 INFO L226 Difference]: Without dead ends: 61577 [2021-11-02 17:10:06,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:10:06,246 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5280 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 10917 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29603.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5280 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10917 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32878.54ms IncrementalHoareTripleChecker+Time [2021-11-02 17:10:06,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5280 Valid, 0 Invalid, 10919 Unknown, 0 Unchecked, 40.50ms Time], IncrementalHoareTripleChecker [1 Valid, 10917 Invalid, 1 Unknown, 0 Unchecked, 32878.54ms Time] [2021-11-02 17:10:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61577 states. [2021-11-02 17:10:07,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61577 to 61268. [2021-11-02 17:10:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61268 states, 61114 states have (on average 1.3225938410184246) internal successors, (80829), 61267 states have internal predecessors, (80829), 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) [2021-11-02 17:10:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61268 states to 61268 states and 80829 transitions. [2021-11-02 17:10:07,250 INFO L78 Accepts]: Start accepts. Automaton has 61268 states and 80829 transitions. Word has length 23 [2021-11-02 17:10:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:10:07,250 INFO L470 AbstractCegarLoop]: Abstraction has 61268 states and 80829 transitions. [2021-11-02 17:10:07,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2021-11-02 17:10:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 61268 states and 80829 transitions. [2021-11-02 17:10:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-02 17:10:07,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:10:07,252 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] [2021-11-02 17:10:07,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 17:10:07,253 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:10:07,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:10:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1978462494, now seen corresponding path program 1 times [2021-11-02 17:10:07,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:10:07,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495722529] [2021-11-02 17:10:07,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:10:07,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:10:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:10:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:10:07,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:10:07,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495722529] [2021-11-02 17:10:07,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495722529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:10:07,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:10:07,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:10:07,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231960463] [2021-11-02 17:10:07,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:10:07,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:10:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:10:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:10:07,907 INFO L87 Difference]: Start difference. First operand 61268 states and 80829 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-11-02 17:10:10,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:10:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:10:45,989 INFO L93 Difference]: Finished difference Result 183090 states and 241567 transitions. [2021-11-02 17:10:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:10:45,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 [2021-11-02 17:10:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:10:46,312 INFO L225 Difference]: With dead ends: 183090 [2021-11-02 17:10:46,313 INFO L226 Difference]: Without dead ends: 121825 [2021-11-02 17:10:46,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:10:46,414 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5279 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 10977 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31751.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5279 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.17ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10977 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35736.16ms IncrementalHoareTripleChecker+Time [2021-11-02 17:10:46,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5279 Valid, 0 Invalid, 10979 Unknown, 0 Unchecked, 48.17ms Time], IncrementalHoareTripleChecker [1 Valid, 10977 Invalid, 1 Unknown, 0 Unchecked, 35736.16ms Time] [2021-11-02 17:10:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121825 states. [2021-11-02 17:10:48,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121825 to 121516. [2021-11-02 17:10:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121516 states, 121362 states have (on average 1.3230253291804683) internal successors, (160565), 121515 states have internal predecessors, (160565), 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) [2021-11-02 17:10:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121516 states to 121516 states and 160565 transitions. [2021-11-02 17:10:49,208 INFO L78 Accepts]: Start accepts. Automaton has 121516 states and 160565 transitions. Word has length 24 [2021-11-02 17:10:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:10:49,211 INFO L470 AbstractCegarLoop]: Abstraction has 121516 states and 160565 transitions. [2021-11-02 17:10:49,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-02 17:10:49,212 INFO L276 IsEmpty]: Start isEmpty. Operand 121516 states and 160565 transitions. [2021-11-02 17:10:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-02 17:10:49,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:10:49,217 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] [2021-11-02 17:10:49,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 17:10:49,218 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:10:49,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:10:49,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1141454569, now seen corresponding path program 1 times [2021-11-02 17:10:49,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:10:49,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104920344] [2021-11-02 17:10:49,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:10:49,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:10:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:10:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:10:49,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:10:49,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104920344] [2021-11-02 17:10:49,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104920344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:10:49,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:10:49,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:10:49,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896639927] [2021-11-02 17:10:49,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:10:49,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:10:49,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:10:49,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:10:49,743 INFO L87 Difference]: Start difference. First operand 121516 states and 160565 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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) [2021-11-02 17:10:51,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:11:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:11:29,716 INFO L93 Difference]: Finished difference Result 363130 states and 479863 transitions. [2021-11-02 17:11:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:11:29,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 [2021-11-02 17:11:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:11:30,401 INFO L225 Difference]: With dead ends: 363130 [2021-11-02 17:11:30,401 INFO L226 Difference]: Without dead ends: 241617 [2021-11-02 17:11:30,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:11:30,581 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5278 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 11037 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31701.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11037 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35843.11ms IncrementalHoareTripleChecker+Time [2021-11-02 17:11:30,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5278 Valid, 0 Invalid, 11039 Unknown, 0 Unchecked, 37.25ms Time], IncrementalHoareTripleChecker [1 Valid, 11037 Invalid, 1 Unknown, 0 Unchecked, 35843.11ms Time] [2021-11-02 17:11:30,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241617 states. [2021-11-02 17:11:35,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241617 to 241308. [2021-11-02 17:11:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241308 states, 241154 states have (on average 1.3232581669804357) internal successors, (319109), 241307 states have internal predecessors, (319109), 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) [2021-11-02 17:11:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241308 states to 241308 states and 319109 transitions. [2021-11-02 17:11:36,595 INFO L78 Accepts]: Start accepts. Automaton has 241308 states and 319109 transitions. Word has length 25 [2021-11-02 17:11:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:11:36,595 INFO L470 AbstractCegarLoop]: Abstraction has 241308 states and 319109 transitions. [2021-11-02 17:11:36,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2021-11-02 17:11:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 241308 states and 319109 transitions. [2021-11-02 17:11:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-02 17:11:36,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:11:36,596 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] [2021-11-02 17:11:36,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 17:11:36,597 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:11:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:11:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 925364443, now seen corresponding path program 1 times [2021-11-02 17:11:36,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:11:36,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676190464] [2021-11-02 17:11:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:11:36,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:11:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:11:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:11:37,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:11:37,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676190464] [2021-11-02 17:11:37,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676190464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:11:37,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:11:37,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:11:37,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449186350] [2021-11-02 17:11:37,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:11:37,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:11:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:11:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:11:37,139 INFO L87 Difference]: Start difference. First operand 241308 states and 319109 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2021-11-02 17:11:39,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 17:12:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 17:12:22,470 INFO L93 Difference]: Finished difference Result 721098 states and 953671 transitions. [2021-11-02 17:12:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 17:12:22,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 [2021-11-02 17:12:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 17:12:23,817 INFO L225 Difference]: With dead ends: 721098 [2021-11-02 17:12:23,818 INFO L226 Difference]: Without dead ends: 479793 [2021-11-02 17:12:24,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:12:24,163 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5277 mSDsluCounter, 5335 mSDsCounter, 0 mSdLazyCounter, 11097 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32343.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5277 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11097 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36858.33ms IncrementalHoareTripleChecker+Time [2021-11-02 17:12:24,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5277 Valid, 0 Invalid, 11099 Unknown, 0 Unchecked, 38.82ms Time], IncrementalHoareTripleChecker [1 Valid, 11097 Invalid, 1 Unknown, 0 Unchecked, 36858.33ms Time] [2021-11-02 17:12:25,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479793 states. [2021-11-02 17:12:34,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479793 to 479484. [2021-11-02 17:12:35,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479484 states, 479330 states have (on average 1.3233909832474495) internal successors, (634341), 479483 states have internal predecessors, (634341), 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) [2021-11-02 17:12:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479484 states to 479484 states and 634341 transitions. [2021-11-02 17:12:37,106 INFO L78 Accepts]: Start accepts. Automaton has 479484 states and 634341 transitions. Word has length 26 [2021-11-02 17:12:37,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 17:12:37,106 INFO L470 AbstractCegarLoop]: Abstraction has 479484 states and 634341 transitions. [2021-11-02 17:12:37,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-11-02 17:12:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 479484 states and 634341 transitions. [2021-11-02 17:12:37,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-02 17:12:37,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 17:12:37,108 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] [2021-11-02 17:12:37,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 17:12:37,108 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-02 17:12:37,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 17:12:37,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1634418607, now seen corresponding path program 1 times [2021-11-02 17:12:37,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 17:12:37,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307447836] [2021-11-02 17:12:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 17:12:37,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 17:12:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 17:12:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 17:12:37,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 17:12:37,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307447836] [2021-11-02 17:12:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307447836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 17:12:37,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 17:12:37,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 17:12:37,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740588451] [2021-11-02 17:12:37,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 17:12:37,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 17:12:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 17:12:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 17:12:37,351 INFO L87 Difference]: Start difference. First operand 479484 states and 634341 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2021-11-02 17:12:39,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []