./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--amc6821.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.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 b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 13:40:52,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:40:52,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:40:52,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:40:52,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:40:52,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:40:52,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:40:52,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:40:52,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:40:52,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:40:52,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:40:52,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:40:52,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:40:52,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:40:52,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:40:52,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:40:52,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:40:52,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:40:52,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:40:52,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:40:52,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:40:52,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:40:52,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:40:52,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:40:52,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:40:52,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:40:52,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:40:52,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:40:52,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:40:52,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:40:52,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:40:52,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:40:52,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:40:52,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:40:52,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:40:52,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:40:52,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:40:52,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:40:52,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:40:52,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:40:52,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:40:52,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 13:40:52,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:40:52,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:40:52,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:40:52,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:40:52,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:40:52,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:40:52,114 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:40:52,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:40:52,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 13:40:52,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:40:52,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:40:52,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:40:52,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:40:52,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:40:52,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:40:52,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:40:52,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:40:52,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:40:52,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:40:52,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:40:52,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:40:52,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:40:52,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:40:52,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 13:40:52,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 13:40:52,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:40:52,119 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:40:52,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:40:52,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:40:52,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4ab5f9a609d808b1cc730f70e246b6cee2b77e8055db2b71a14eb45eb69a8df [2021-11-06 13:40:52,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:40:52,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:40:52,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:40:52,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:40:52,324 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:40:52,325 INFO L432 ainManager$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--amc6821.ko-main.cil.out.i [2021-11-06 13:40:52,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ff443d2/df5d6fbd81084814bd64d9aa9b096e2f/FLAG7ed5b04bc [2021-11-06 13:40:52,836 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:40:52,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-06 13:40:52,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ff443d2/df5d6fbd81084814bd64d9aa9b096e2f/FLAG7ed5b04bc [2021-11-06 13:40:53,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ff443d2/df5d6fbd81084814bd64d9aa9b096e2f [2021-11-06 13:40:53,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:40:53,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:40:53,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:40:53,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:40:53,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:40:53,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:40:53" (1/1) ... [2021-11-06 13:40:53,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb578a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:53, skipping insertion in model container [2021-11-06 13:40:53,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:40:53" (1/1) ... [2021-11-06 13:40:53,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:40:53,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:40:53,762 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--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-06 13:40:53,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:40:53,844 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:40:54,007 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--amc6821.ko-main.cil.out.i[139464,139477] [2021-11-06 13:40:54,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:40:54,127 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:40:54,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54 WrapperNode [2021-11-06 13:40:54,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:40:54,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:40:54,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:40:54,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:40:54,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:54,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:54,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:40:54,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:40:54,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:40:54,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:40:54,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:54,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:54,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:54,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:54,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:55,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:55,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:55,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:40:55,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:40:55,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:40:55,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:40:55,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (1/1) ... [2021-11-06 13:40:55,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:40:55,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:40:55,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 13:40:55,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 13:40:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 13:40:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 13:40:55,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:40:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:40:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:40:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:40:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:40:55,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:40:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 13:40:55,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:40:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:41:11,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:41:11,780 INFO L299 CfgBuilder]: Removed 2924 assume(true) statements. [2021-11-06 13:41:11,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:41:11 BoogieIcfgContainer [2021-11-06 13:41:11,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:41:11,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:41:11,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:41:11,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:41:11,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:40:53" (1/3) ... [2021-11-06 13:41:11,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d5c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:41:11, skipping insertion in model container [2021-11-06 13:41:11,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:40:54" (2/3) ... [2021-11-06 13:41:11,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d5c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:41:11, skipping insertion in model container [2021-11-06 13:41:11,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:41:11" (3/3) ... [2021-11-06 13:41:11,794 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2021-11-06 13:41:11,801 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:41:11,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 112 error locations. [2021-11-06 13:41:11,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:41:11,858 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 13:41:11,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2021-11-06 13:41:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 3223 states, 3110 states have (on average 1.405144694533762) internal successors, (4370), 3222 states have internal predecessors, (4370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-06 13:41:11,911 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:11,911 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:11,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:11,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:11,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1794240842, now seen corresponding path program 1 times [2021-11-06 13:41:11,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:11,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085038848] [2021-11-06 13:41:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:11,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:12,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:12,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085038848] [2021-11-06 13:41:12,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085038848] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:12,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:12,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:12,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134766086] [2021-11-06 13:41:12,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:12,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:12,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:12,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:12,497 INFO L87 Difference]: Start difference. First operand has 3223 states, 3110 states have (on average 1.405144694533762) internal successors, (4370), 3222 states have internal predecessors, (4370), 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) [2021-11-06 13:41:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:12,820 INFO L93 Difference]: Finished difference Result 9604 states and 13027 transitions. [2021-11-06 13:41:12,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:12,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-06 13:41:12,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:12,863 INFO L225 Difference]: With dead ends: 9604 [2021-11-06 13:41:12,864 INFO L226 Difference]: Without dead ends: 6376 [2021-11-06 13:41:12,877 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:12,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6376 states. [2021-11-06 13:41:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6376 to 6151. [2021-11-06 13:41:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6151 states, 6039 states have (on average 1.3591654247391953) internal successors, (8208), 6150 states have internal predecessors, (8208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:13,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6151 states to 6151 states and 8208 transitions. [2021-11-06 13:41:13,049 INFO L78 Accepts]: Start accepts. Automaton has 6151 states and 8208 transitions. Word has length 15 [2021-11-06 13:41:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:13,049 INFO L470 AbstractCegarLoop]: Abstraction has 6151 states and 8208 transitions. [2021-11-06 13:41:13,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:13,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6151 states and 8208 transitions. [2021-11-06 13:41:13,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-06 13:41:13,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:13,051 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:13,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 13:41:13,051 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:13,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:13,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1247788700, now seen corresponding path program 1 times [2021-11-06 13:41:13,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:13,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383950303] [2021-11-06 13:41:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:13,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:13,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:13,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383950303] [2021-11-06 13:41:13,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383950303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:13,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:13,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:13,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895403364] [2021-11-06 13:41:13,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:13,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:13,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:13,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:13,352 INFO L87 Difference]: Start difference. First operand 6151 states and 8208 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:13,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:13,637 INFO L93 Difference]: Finished difference Result 18331 states and 24468 transitions. [2021-11-06 13:41:13,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:13,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-11-06 13:41:13,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:13,680 INFO L225 Difference]: With dead ends: 18331 [2021-11-06 13:41:13,681 INFO L226 Difference]: Without dead ends: 12183 [2021-11-06 13:41:13,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:13,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12183 states. [2021-11-06 13:41:13,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12183 to 11958. [2021-11-06 13:41:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11958 states, 11846 states have (on average 1.3627384771230795) internal successors, (16143), 11957 states have internal predecessors, (16143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11958 states to 11958 states and 16143 transitions. [2021-11-06 13:41:13,971 INFO L78 Accepts]: Start accepts. Automaton has 11958 states and 16143 transitions. Word has length 16 [2021-11-06 13:41:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:13,971 INFO L470 AbstractCegarLoop]: Abstraction has 11958 states and 16143 transitions. [2021-11-06 13:41:13,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 11958 states and 16143 transitions. [2021-11-06 13:41:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-06 13:41:13,972 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:13,973 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:13,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 13:41:13,973 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:13,973 INFO L85 PathProgramCache]: Analyzing trace with hash -348717799, now seen corresponding path program 1 times [2021-11-06 13:41:13,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:13,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218869906] [2021-11-06 13:41:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:13,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:14,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:14,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218869906] [2021-11-06 13:41:14,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218869906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:14,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:14,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:14,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23662570] [2021-11-06 13:41:14,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:14,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:14,149 INFO L87 Difference]: Start difference. First operand 11958 states and 16143 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:14,676 INFO L93 Difference]: Finished difference Result 35644 states and 48133 transitions. [2021-11-06 13:41:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:14,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-06 13:41:14,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:14,754 INFO L225 Difference]: With dead ends: 35644 [2021-11-06 13:41:14,754 INFO L226 Difference]: Without dead ends: 23689 [2021-11-06 13:41:14,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23689 states. [2021-11-06 13:41:15,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23689 to 23464. [2021-11-06 13:41:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23352 states have (on average 1.3648081534772183) internal successors, (31871), 23463 states have internal predecessors, (31871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:15,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 31871 transitions. [2021-11-06 13:41:15,326 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 31871 transitions. Word has length 17 [2021-11-06 13:41:15,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:15,327 INFO L470 AbstractCegarLoop]: Abstraction has 23464 states and 31871 transitions. [2021-11-06 13:41:15,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:15,328 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 31871 transitions. [2021-11-06 13:41:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-06 13:41:15,330 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:15,330 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:15,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 13:41:15,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1185636838, now seen corresponding path program 1 times [2021-11-06 13:41:15,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:15,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678052640] [2021-11-06 13:41:15,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:15,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:15,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:15,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678052640] [2021-11-06 13:41:15,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678052640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:15,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:15,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:15,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977497071] [2021-11-06 13:41:15,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:15,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:15,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:15,630 INFO L87 Difference]: Start difference. First operand 23464 states and 31871 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:16,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:16,393 INFO L93 Difference]: Finished difference Result 69846 states and 94861 transitions. [2021-11-06 13:41:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:16,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-06 13:41:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:16,528 INFO L225 Difference]: With dead ends: 69846 [2021-11-06 13:41:16,528 INFO L226 Difference]: Without dead ends: 46385 [2021-11-06 13:41:16,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46385 states. [2021-11-06 13:41:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46385 to 46160. [2021-11-06 13:41:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46160 states, 46048 states have (on average 1.3652493050729673) internal successors, (62867), 46159 states have internal predecessors, (62867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46160 states to 46160 states and 62867 transitions. [2021-11-06 13:41:17,698 INFO L78 Accepts]: Start accepts. Automaton has 46160 states and 62867 transitions. Word has length 18 [2021-11-06 13:41:17,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:17,698 INFO L470 AbstractCegarLoop]: Abstraction has 46160 states and 62867 transitions. [2021-11-06 13:41:17,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 46160 states and 62867 transitions. [2021-11-06 13:41:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-06 13:41:17,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:17,699 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:17,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 13:41:17,700 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash -563917397, now seen corresponding path program 1 times [2021-11-06 13:41:17,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:17,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889714513] [2021-11-06 13:41:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:17,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:17,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:17,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889714513] [2021-11-06 13:41:17,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889714513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:17,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:17,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:17,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654768955] [2021-11-06 13:41:17,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:17,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:17,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:17,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:17,889 INFO L87 Difference]: Start difference. First operand 46160 states and 62867 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:19,376 INFO L93 Difference]: Finished difference Result 137574 states and 187409 transitions. [2021-11-06 13:41:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:19,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-06 13:41:19,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:19,671 INFO L225 Difference]: With dead ends: 137574 [2021-11-06 13:41:19,672 INFO L226 Difference]: Without dead ends: 91417 [2021-11-06 13:41:19,761 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:19,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91417 states. [2021-11-06 13:41:22,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91417 to 91192. [2021-11-06 13:41:22,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91192 states, 91080 states have (on average 1.3659530083443128) internal successors, (124411), 91191 states have internal predecessors, (124411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91192 states to 91192 states and 124411 transitions. [2021-11-06 13:41:22,582 INFO L78 Accepts]: Start accepts. Automaton has 91192 states and 124411 transitions. Word has length 19 [2021-11-06 13:41:22,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:22,582 INFO L470 AbstractCegarLoop]: Abstraction has 91192 states and 124411 transitions. [2021-11-06 13:41:22,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:22,582 INFO L276 IsEmpty]: Start isEmpty. Operand 91192 states and 124411 transitions. [2021-11-06 13:41:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-06 13:41:22,583 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:22,583 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:22,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 13:41:22,584 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:22,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash -677031331, now seen corresponding path program 1 times [2021-11-06 13:41:22,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:22,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601122373] [2021-11-06 13:41:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:22,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:22,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:22,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601122373] [2021-11-06 13:41:22,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601122373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:22,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:22,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:22,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407896706] [2021-11-06 13:41:22,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:22,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:22,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:22,775 INFO L87 Difference]: Start difference. First operand 91192 states and 124411 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:25,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:25,750 INFO L93 Difference]: Finished difference Result 268086 states and 365637 transitions. [2021-11-06 13:41:25,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:25,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-06 13:41:25,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:26,382 INFO L225 Difference]: With dead ends: 268086 [2021-11-06 13:41:26,383 INFO L226 Difference]: Without dead ends: 176897 [2021-11-06 13:41:26,549 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176897 states. [2021-11-06 13:41:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176897 to 176680. [2021-11-06 13:41:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176680 states, 176568 states have (on average 1.3653833084137557) internal successors, (241083), 176679 states have internal predecessors, (241083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176680 states to 176680 states and 241083 transitions. [2021-11-06 13:41:30,673 INFO L78 Accepts]: Start accepts. Automaton has 176680 states and 241083 transitions. Word has length 20 [2021-11-06 13:41:30,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:30,673 INFO L470 AbstractCegarLoop]: Abstraction has 176680 states and 241083 transitions. [2021-11-06 13:41:30,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:30,673 INFO L276 IsEmpty]: Start isEmpty. Operand 176680 states and 241083 transitions. [2021-11-06 13:41:30,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-06 13:41:30,674 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:30,674 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:30,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 13:41:30,674 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1299924542, now seen corresponding path program 1 times [2021-11-06 13:41:30,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:30,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800945638] [2021-11-06 13:41:30,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:30,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:30,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:30,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800945638] [2021-11-06 13:41:30,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800945638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:30,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:30,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:30,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438021087] [2021-11-06 13:41:30,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:30,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:30,824 INFO L87 Difference]: Start difference. First operand 176680 states and 241083 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:36,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:41:36,746 INFO L93 Difference]: Finished difference Result 519078 states and 708069 transitions. [2021-11-06 13:41:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:41:36,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-06 13:41:36,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:41:37,679 INFO L225 Difference]: With dead ends: 519078 [2021-11-06 13:41:37,679 INFO L226 Difference]: Without dead ends: 342401 [2021-11-06 13:41:37,916 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342401 states. [2021-11-06 13:41:44,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342401 to 342184. [2021-11-06 13:41:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342184 states, 342072 states have (on average 1.3646571482027177) internal successors, (466811), 342183 states have internal predecessors, (466811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342184 states to 342184 states and 466811 transitions. [2021-11-06 13:41:45,965 INFO L78 Accepts]: Start accepts. Automaton has 342184 states and 466811 transitions. Word has length 21 [2021-11-06 13:41:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:41:45,965 INFO L470 AbstractCegarLoop]: Abstraction has 342184 states and 466811 transitions. [2021-11-06 13:41:45,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:41:45,965 INFO L276 IsEmpty]: Start isEmpty. Operand 342184 states and 466811 transitions. [2021-11-06 13:41:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-06 13:41:45,966 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:41:45,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:41:45,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 13:41:45,967 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 109 more)] === [2021-11-06 13:41:45,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:41:45,967 INFO L85 PathProgramCache]: Analyzing trace with hash 865222996, now seen corresponding path program 1 times [2021-11-06 13:41:45,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:41:45,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949548197] [2021-11-06 13:41:45,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:41:45,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:41:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:41:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 13:41:46,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:41:46,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949548197] [2021-11-06 13:41:46,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949548197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:41:46,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:41:46,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:41:46,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820761876] [2021-11-06 13:41:46,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:41:46,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:41:46,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:41:46,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:41:46,621 INFO L87 Difference]: Start difference. First operand 342184 states and 466811 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)