./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 fcb8e130 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-dev-fcb8e13 [2021-11-22 22:29:30,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 22:29:30,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 22:29:31,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 22:29:31,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 22:29:31,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 22:29:31,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 22:29:31,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 22:29:31,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 22:29:31,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 22:29:31,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 22:29:31,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 22:29:31,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 22:29:31,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 22:29:31,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 22:29:31,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 22:29:31,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 22:29:31,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 22:29:31,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 22:29:31,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 22:29:31,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 22:29:31,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 22:29:31,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 22:29:31,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 22:29:31,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 22:29:31,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 22:29:31,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 22:29:31,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 22:29:31,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 22:29:31,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 22:29:31,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 22:29:31,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 22:29:31,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 22:29:31,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 22:29:31,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 22:29:31,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 22:29:31,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 22:29:31,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 22:29:31,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 22:29:31,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 22:29:31,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 22:29:31,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 22:29:31,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 22:29:31,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 22:29:31,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 22:29:31,129 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 22:29:31,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 22:29:31,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 22:29:31,130 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 22:29:31,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 22:29:31,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 22:29:31,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 22:29:31,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 22:29:31,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 22:29:31,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 22:29:31,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 22:29:31,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 22:29:31,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 22:29:31,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 22:29:31,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 22:29:31,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 22:29:31,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:29:31,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 22:29:31,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 22:29:31,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 22:29:31,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 22:29:31,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 22:29:31,134 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 22:29:31,135 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 22:29:31,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 22:29:31,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 22:29:31,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad6d1ed8310d8e3264189ac87472d58c77647a0c63d75779b5974e889987542 [2021-11-22 22:29:31,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 22:29:31,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 22:29:31,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 22:29:31,385 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 22:29:31,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 22:29:31,387 INFO L432 ainManager$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 [2021-11-22 22:29:31,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3625d035b/5d94bc39b2ba49dda071f37775a05b8b/FLAG749cc3ff5 [2021-11-22 22:29:32,137 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 22:29:32,138 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 [2021-11-22 22:29:32,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3625d035b/5d94bc39b2ba49dda071f37775a05b8b/FLAG749cc3ff5 [2021-11-22 22:29:32,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3625d035b/5d94bc39b2ba49dda071f37775a05b8b [2021-11-22 22:29:32,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 22:29:32,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 22:29:32,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 22:29:32,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 22:29:32,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 22:29:32,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:29:32" (1/1) ... [2021-11-22 22:29:32,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d10464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:32, skipping insertion in model container [2021-11-22 22:29:32,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:29:32" (1/1) ... [2021-11-22 22:29:32,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 22:29:32,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 22:29:33,080 WARN L230 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] [2021-11-22 22:29:33,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:29:33,258 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 22:29:33,420 WARN L230 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] [2021-11-22 22:29:33,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:29:33,644 INFO L208 MainTranslator]: Completed translation [2021-11-22 22:29:33,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33 WrapperNode [2021-11-22 22:29:33,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 22:29:33,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 22:29:33,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 22:29:33,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 22:29:33,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:33,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,251 INFO L137 Inliner]: procedures = 115, calls = 2009, calls flagged for inlining = 256, calls inlined = 2256, statements flattened = 26268 [2021-11-22 22:29:34,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 22:29:34,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 22:29:34,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 22:29:34,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 22:29:34,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:34,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:35,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 22:29:35,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 22:29:35,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 22:29:35,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 22:29:35,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (1/1) ... [2021-11-22 22:29:35,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:29:35,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 22:29:35,159 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) [2021-11-22 22:29:35,187 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 [2021-11-22 22:29:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 22:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 22:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 22:29:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 22:29:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 22:29:35,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 22:29:35,930 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 22:29:35,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 22:29:44,670 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 22:29:44,703 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 22:29:44,704 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 22:29:44,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:29:44 BoogieIcfgContainer [2021-11-22 22:29:44,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 22:29:44,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 22:29:44,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 22:29:44,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 22:29:44,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:29:32" (1/3) ... [2021-11-22 22:29:44,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2792567a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:29:44, skipping insertion in model container [2021-11-22 22:29:44,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:29:33" (2/3) ... [2021-11-22 22:29:44,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2792567a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:29:44, skipping insertion in model container [2021-11-22 22:29:44,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:29:44" (3/3) ... [2021-11-22 22:29:44,718 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--max16065.ko-main.cil.out.i [2021-11-22 22:29:44,722 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 22:29:44,723 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2021-11-22 22:29:44,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 22:29:44,795 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 [2021-11-22 22:29:44,795 INFO L340 AbstractCegarLoop]: Starting to check reachability of 154 error locations. [2021-11-22 22:29:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 4544 states, 4389 states have (on average 1.3529277739804055) internal successors, (5938), 4543 states have internal predecessors, (5938), 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) [2021-11-22 22:29:44,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 22:29:44,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:44,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:29:44,879 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)] === [2021-11-22 22:29:44,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:44,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1759055712, now seen corresponding path program 1 times [2021-11-22 22:29:44,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:44,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039105683] [2021-11-22 22:29:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:44,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:45,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:45,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039105683] [2021-11-22 22:29:45,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039105683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:45,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:45,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:45,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429505512] [2021-11-22 22:29:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:45,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:45,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:45,664 INFO L87 Difference]: Start difference. First operand has 4544 states, 4389 states have (on average 1.3529277739804055) internal successors, (5938), 4543 states have internal predecessors, (5938), 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) [2021-11-22 22:29:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:46,095 INFO L93 Difference]: Finished difference Result 13256 states and 17421 transitions. [2021-11-22 22:29:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:46,098 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 [2021-11-22 22:29:46,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:46,150 INFO L225 Difference]: With dead ends: 13256 [2021-11-22 22:29:46,150 INFO L226 Difference]: Without dead ends: 8707 [2021-11-22 22:29:46,168 INFO L932 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 [2021-11-22 22:29:46,173 INFO L933 BasicCegarLoop]: 5505 mSDtfsCounter, 5418 mSDsluCounter, 5495 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5418 SdHoareTripleChecker+Valid, 11000 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:46,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5418 Valid, 11000 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:29:46,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8707 states. [2021-11-22 22:29:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8707 to 8396. [2021-11-22 22:29:46,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8396 states, 8242 states have (on average 1.3052657122057754) internal successors, (10758), 8395 states have internal predecessors, (10758), 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) [2021-11-22 22:29:46,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 10758 transitions. [2021-11-22 22:29:46,471 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 10758 transitions. Word has length 18 [2021-11-22 22:29:46,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:46,471 INFO L470 AbstractCegarLoop]: Abstraction has 8396 states and 10758 transitions. [2021-11-22 22:29:46,471 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) [2021-11-22 22:29:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 10758 transitions. [2021-11-22 22:29:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 22:29:46,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:46,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:29:46,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 22:29:46,479 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)] === [2021-11-22 22:29:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:46,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1197506139, now seen corresponding path program 1 times [2021-11-22 22:29:46,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:46,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717872401] [2021-11-22 22:29:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:46,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:46,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:46,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717872401] [2021-11-22 22:29:46,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717872401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:46,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:46,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:46,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663080577] [2021-11-22 22:29:46,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:46,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:46,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:46,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:46,770 INFO L87 Difference]: Start difference. First operand 8396 states and 10758 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) [2021-11-22 22:29:47,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:47,341 INFO L93 Difference]: Finished difference Result 25060 states and 32114 transitions. [2021-11-22 22:29:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:47,342 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 [2021-11-22 22:29:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:47,405 INFO L225 Difference]: With dead ends: 25060 [2021-11-22 22:29:47,406 INFO L226 Difference]: Without dead ends: 16667 [2021-11-22 22:29:47,425 INFO L932 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 [2021-11-22 22:29:47,427 INFO L933 BasicCegarLoop]: 5578 mSDtfsCounter, 5411 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5411 SdHoareTripleChecker+Valid, 11069 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:47,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5411 Valid, 11069 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:29:47,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16667 states. [2021-11-22 22:29:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16667 to 16356. [2021-11-22 22:29:47,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16356 states, 16202 states have (on average 1.3081718306381929) internal successors, (21195), 16355 states have internal predecessors, (21195), 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) [2021-11-22 22:29:47,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16356 states to 16356 states and 21195 transitions. [2021-11-22 22:29:47,892 INFO L78 Accepts]: Start accepts. Automaton has 16356 states and 21195 transitions. Word has length 19 [2021-11-22 22:29:47,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:47,892 INFO L470 AbstractCegarLoop]: Abstraction has 16356 states and 21195 transitions. [2021-11-22 22:29:47,893 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) [2021-11-22 22:29:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 16356 states and 21195 transitions. [2021-11-22 22:29:47,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 22:29:47,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:47,897 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] [2021-11-22 22:29:47,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 22:29:47,897 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)] === [2021-11-22 22:29:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:47,899 INFO L85 PathProgramCache]: Analyzing trace with hash 616736069, now seen corresponding path program 1 times [2021-11-22 22:29:47,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:47,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599269194] [2021-11-22 22:29:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:47,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:48,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:48,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599269194] [2021-11-22 22:29:48,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599269194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:48,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:48,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:48,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951957547] [2021-11-22 22:29:48,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:48,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:48,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:48,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:48,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:48,207 INFO L87 Difference]: Start difference. First operand 16356 states and 21195 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) [2021-11-22 22:29:49,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:49,072 INFO L93 Difference]: Finished difference Result 48826 states and 63281 transitions. [2021-11-22 22:29:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:49,073 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 [2021-11-22 22:29:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:49,175 INFO L225 Difference]: With dead ends: 48826 [2021-11-22 22:29:49,176 INFO L226 Difference]: Without dead ends: 32473 [2021-11-22 22:29:49,211 INFO L932 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 [2021-11-22 22:29:49,215 INFO L933 BasicCegarLoop]: 5657 mSDtfsCounter, 5410 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5410 SdHoareTripleChecker+Valid, 11148 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:49,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5410 Valid, 11148 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:29:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32473 states. [2021-11-22 22:29:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32473 to 32162. [2021-11-22 22:29:50,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32162 states, 32008 states have (on average 1.3097663084228943) internal successors, (41923), 32161 states have internal predecessors, (41923), 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) [2021-11-22 22:29:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32162 states to 32162 states and 41923 transitions. [2021-11-22 22:29:50,110 INFO L78 Accepts]: Start accepts. Automaton has 32162 states and 41923 transitions. Word has length 22 [2021-11-22 22:29:50,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:50,111 INFO L470 AbstractCegarLoop]: Abstraction has 32162 states and 41923 transitions. [2021-11-22 22:29:50,111 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) [2021-11-22 22:29:50,111 INFO L276 IsEmpty]: Start isEmpty. Operand 32162 states and 41923 transitions. [2021-11-22 22:29:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 22:29:50,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:50,113 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] [2021-11-22 22:29:50,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 22:29:50,114 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)] === [2021-11-22 22:29:50,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1107483654, now seen corresponding path program 1 times [2021-11-22 22:29:50,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:50,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072045977] [2021-11-22 22:29:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:50,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:50,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072045977] [2021-11-22 22:29:50,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072045977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:50,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:50,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:50,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646090828] [2021-11-22 22:29:50,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:50,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:50,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:50,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:50,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:50,330 INFO L87 Difference]: Start difference. First operand 32162 states and 41923 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) [2021-11-22 22:29:51,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:51,760 INFO L93 Difference]: Finished difference Result 96108 states and 125289 transitions. [2021-11-22 22:29:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:51,761 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 [2021-11-22 22:29:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:52,056 INFO L225 Difference]: With dead ends: 96108 [2021-11-22 22:29:52,056 INFO L226 Difference]: Without dead ends: 63949 [2021-11-22 22:29:52,140 INFO L932 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 [2021-11-22 22:29:52,146 INFO L933 BasicCegarLoop]: 5734 mSDtfsCounter, 5433 mSDsluCounter, 5488 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5433 SdHoareTripleChecker+Valid, 11222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:52,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5433 Valid, 11222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:29:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63949 states. [2021-11-22 22:29:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63949 to 63638. [2021-11-22 22:29:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63638 states, 63484 states have (on average 1.310550689937622) internal successors, (83199), 63637 states have internal predecessors, (83199), 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) [2021-11-22 22:29:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63638 states to 63638 states and 83199 transitions. [2021-11-22 22:29:53,897 INFO L78 Accepts]: Start accepts. Automaton has 63638 states and 83199 transitions. Word has length 23 [2021-11-22 22:29:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:29:53,897 INFO L470 AbstractCegarLoop]: Abstraction has 63638 states and 83199 transitions. [2021-11-22 22:29:53,897 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) [2021-11-22 22:29:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 63638 states and 83199 transitions. [2021-11-22 22:29:53,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 22:29:53,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:29:53,899 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] [2021-11-22 22:29:53,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 22:29:53,900 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)] === [2021-11-22 22:29:53,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:29:53,900 INFO L85 PathProgramCache]: Analyzing trace with hash -570337762, now seen corresponding path program 1 times [2021-11-22 22:29:53,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:29:53,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455616798] [2021-11-22 22:29:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:29:53,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:29:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:29:54,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:29:54,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:29:54,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455616798] [2021-11-22 22:29:54,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455616798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:29:54,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:29:54,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:29:54,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408761343] [2021-11-22 22:29:54,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:29:54,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:29:54,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:29:54,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:29:54,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:29:54,298 INFO L87 Difference]: Start difference. First operand 63638 states and 83199 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) [2021-11-22 22:29:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:29:56,347 INFO L93 Difference]: Finished difference Result 190168 states and 248645 transitions. [2021-11-22 22:29:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:29:56,348 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 [2021-11-22 22:29:56,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:29:56,741 INFO L225 Difference]: With dead ends: 190168 [2021-11-22 22:29:56,742 INFO L226 Difference]: Without dead ends: 126533 [2021-11-22 22:29:56,836 INFO L932 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 [2021-11-22 22:29:56,837 INFO L933 BasicCegarLoop]: 5796 mSDtfsCounter, 5432 mSDsluCounter, 5488 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5432 SdHoareTripleChecker+Valid, 11284 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:29:56,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5432 Valid, 11284 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:29:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126533 states. [2021-11-22 22:29:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126533 to 126222. [2021-11-22 22:29:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126222 states, 126068 states have (on average 1.310967097122188) internal successors, (165271), 126221 states have internal predecessors, (165271), 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) [2021-11-22 22:30:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126222 states to 126222 states and 165271 transitions. [2021-11-22 22:30:00,327 INFO L78 Accepts]: Start accepts. Automaton has 126222 states and 165271 transitions. Word has length 24 [2021-11-22 22:30:00,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:30:00,328 INFO L470 AbstractCegarLoop]: Abstraction has 126222 states and 165271 transitions. [2021-11-22 22:30:00,328 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) [2021-11-22 22:30:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 126222 states and 165271 transitions. [2021-11-22 22:30:00,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 22:30:00,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:30:00,330 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] [2021-11-22 22:30:00,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 22:30:00,331 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)] === [2021-11-22 22:30:00,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:30:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1098684133, now seen corresponding path program 1 times [2021-11-22 22:30:00,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:30:00,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529260075] [2021-11-22 22:30:00,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:30:00,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:30:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:30:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:30:00,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:30:00,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529260075] [2021-11-22 22:30:00,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529260075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:30:00,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:30:00,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:30:00,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988391450] [2021-11-22 22:30:00,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:30:00,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:30:00,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:30:00,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:30:00,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:30:00,589 INFO L87 Difference]: Start difference. First operand 126222 states and 165271 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) [2021-11-22 22:30:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:30:04,781 INFO L93 Difference]: Finished difference Result 377184 states and 493917 transitions. [2021-11-22 22:30:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:30:04,782 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 [2021-11-22 22:30:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:30:05,391 INFO L225 Difference]: With dead ends: 377184 [2021-11-22 22:30:05,392 INFO L226 Difference]: Without dead ends: 250965 [2021-11-22 22:30:05,617 INFO L932 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 [2021-11-22 22:30:05,619 INFO L933 BasicCegarLoop]: 5858 mSDtfsCounter, 5431 mSDsluCounter, 5488 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5431 SdHoareTripleChecker+Valid, 11346 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 22:30:05,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5431 Valid, 11346 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 22:30:05,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250965 states. [2021-11-22 22:30:10,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250965 to 250654. [2021-11-22 22:30:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250654 states, 250500 states have (on average 1.3111976047904192) internal successors, (328455), 250653 states have internal predecessors, (328455), 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) [2021-11-22 22:30:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250654 states to 250654 states and 328455 transitions. [2021-11-22 22:30:11,647 INFO L78 Accepts]: Start accepts. Automaton has 250654 states and 328455 transitions. Word has length 25 [2021-11-22 22:30:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:30:11,647 INFO L470 AbstractCegarLoop]: Abstraction has 250654 states and 328455 transitions. [2021-11-22 22:30:11,647 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) [2021-11-22 22:30:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 250654 states and 328455 transitions. [2021-11-22 22:30:11,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 22:30:11,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:30:11,649 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] [2021-11-22 22:30:11,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 22:30:11,650 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 151 more)] === [2021-11-22 22:30:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:30:11,650 INFO L85 PathProgramCache]: Analyzing trace with hash 49181383, now seen corresponding path program 1 times [2021-11-22 22:30:11,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:30:11,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013695793] [2021-11-22 22:30:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:30:11,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:30:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:30:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:30:11,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:30:11,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013695793] [2021-11-22 22:30:11,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013695793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:30:11,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:30:11,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:30:11,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718725260] [2021-11-22 22:30:11,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:30:11,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:30:11,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:30:11,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:30:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:30:11,904 INFO L87 Difference]: Start difference. First operand 250654 states and 328455 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) [2021-11-22 22:30:20,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:30:20,623 INFO L93 Difference]: Finished difference Result 748240 states and 980621 transitions. [2021-11-22 22:30:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:30:20,623 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 [2021-11-22 22:30:20,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:30:21,971 INFO L225 Difference]: With dead ends: 748240 [2021-11-22 22:30:21,972 INFO L226 Difference]: Without dead ends: 497589 [2021-11-22 22:30:22,356 INFO L932 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 [2021-11-22 22:30:22,357 INFO L933 BasicCegarLoop]: 5920 mSDtfsCounter, 5406 mSDsluCounter, 5491 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5406 SdHoareTripleChecker+Valid, 11411 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:30:22,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5406 Valid, 11411 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:30:22,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497589 states.