./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:01:43,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:01:43,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:01:43,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:01:43,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:01:43,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:01:43,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:01:43,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:01:43,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:01:43,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:01:43,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:01:43,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:01:43,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:01:43,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:01:43,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:01:43,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:01:43,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:01:43,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:01:43,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:01:43,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:01:43,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:01:43,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:01:43,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:01:43,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:01:43,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:01:43,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:01:43,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:01:43,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:01:43,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:01:43,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:01:43,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:01:43,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:01:43,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:01:43,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:01:43,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:01:43,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:01:43,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:01:43,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:01:43,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:01:43,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:01:43,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:01:43,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:01:43,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:01:43,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:01:43,179 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:01:43,179 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:01:43,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:01:43,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:01:43,180 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:01:43,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:01:43,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:01:43,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:01:43,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:01:43,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:01:43,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:01:43,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:01:43,182 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:01:43,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:01:43,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:01:43,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:01:43,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:01:43,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:01:43,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:01:43,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:01:43,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:01:43,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:01:43,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:01:43,186 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:01:43,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:01:43,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:01:43,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:01:43,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b418a847569c2fdb13e49f0158439b90c8dabf7cf2f41b74c1e9948cb252ab6 [2021-11-06 17:01:43,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:01:43,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:01:43,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:01:43,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:01:43,395 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:01:43,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-06 17:01:43,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33670432/0ba77141eeb44a37ab1a47aec6b12878/FLAGcb9fa8724 [2021-11-06 17:01:44,120 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:01:44,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-06 17:01:44,169 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33670432/0ba77141eeb44a37ab1a47aec6b12878/FLAGcb9fa8724 [2021-11-06 17:01:44,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33670432/0ba77141eeb44a37ab1a47aec6b12878 [2021-11-06 17:01:44,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:01:44,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:01:44,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:01:44,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:01:44,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:01:44,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:01:44" (1/1) ... [2021-11-06 17:01:44,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259da099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:44, skipping insertion in model container [2021-11-06 17:01:44,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:01:44" (1/1) ... [2021-11-06 17:01:44,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:01:44,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:01:45,447 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2021-11-06 17:01:45,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:01:45,585 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:01:45,879 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i[235755,235768] [2021-11-06 17:01:45,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:01:45,977 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:01:45,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45 WrapperNode [2021-11-06 17:01:45,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:01:45,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:01:45,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:01:45,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:01:45,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:46,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:46,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:01:46,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:01:46,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:01:46,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:01:46,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:46,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:47,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:47,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:47,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:47,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:48,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:48,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:01:48,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:01:48,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:01:48,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:01:48,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (1/1) ... [2021-11-06 17:01:48,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:01:48,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:01:48,189 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 17:01:48,199 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 17:01:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:01:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:01:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:01:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:01:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:01:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:01:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:01:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:01:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:02:54,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:02:54,245 INFO L299 CfgBuilder]: Removed 5131 assume(true) statements. [2021-11-06 17:02:54,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:02:54 BoogieIcfgContainer [2021-11-06 17:02:54,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:02:54,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:02:54,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:02:54,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:02:54,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:01:44" (1/3) ... [2021-11-06 17:02:54,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6363ccdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:02:54, skipping insertion in model container [2021-11-06 17:02:54,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:01:45" (2/3) ... [2021-11-06 17:02:54,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6363ccdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:02:54, skipping insertion in model container [2021-11-06 17:02:54,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:02:54" (3/3) ... [2021-11-06 17:02:54,265 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point.cil.out.i [2021-11-06 17:02:54,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:02:54,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-06 17:02:54,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:02:54,329 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 17:02:54,329 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-06 17:02:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 4852 states, 4839 states have (on average 1.3860301715230419) internal successors, (6707), 4851 states have internal predecessors, (6707), 0 states have call successors, (0), 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 17:02:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 17:02:54,398 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:02:54,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:02:54,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:02:54,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:02:54,403 INFO L85 PathProgramCache]: Analyzing trace with hash 220167062, now seen corresponding path program 1 times [2021-11-06 17:02:54,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:02:54,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802772237] [2021-11-06 17:02:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:02:54,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:02:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:02:55,332 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 17:02:55,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:02:55,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802772237] [2021-11-06 17:02:55,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802772237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:02:55,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:02:55,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:02:55,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876931872] [2021-11-06 17:02:55,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:02:55,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:02:55,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:02:55,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:02:55,363 INFO L87 Difference]: Start difference. First operand has 4852 states, 4839 states have (on average 1.3860301715230419) internal successors, (6707), 4851 states have internal predecessors, (6707), 0 states have call successors, (0), 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 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 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 17:02:55,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:02:55,528 INFO L93 Difference]: Finished difference Result 9700 states and 13409 transitions. [2021-11-06 17:02:55,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:02:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-11-06 17:02:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:02:55,564 INFO L225 Difference]: With dead ends: 9700 [2021-11-06 17:02:55,564 INFO L226 Difference]: Without dead ends: 4844 [2021-11-06 17:02:55,578 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:02:55,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2021-11-06 17:02:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4844. [2021-11-06 17:02:55,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4844 states, 4832 states have (on average 1.3640314569536425) internal successors, (6591), 4843 states have internal predecessors, (6591), 0 states have call successors, (0), 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 17:02:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4844 states to 4844 states and 6591 transitions. [2021-11-06 17:02:55,763 INFO L78 Accepts]: Start accepts. Automaton has 4844 states and 6591 transitions. Word has length 78 [2021-11-06 17:02:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:02:55,763 INFO L470 AbstractCegarLoop]: Abstraction has 4844 states and 6591 transitions. [2021-11-06 17:02:55,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 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 17:02:55,764 INFO L276 IsEmpty]: Start isEmpty. Operand 4844 states and 6591 transitions. [2021-11-06 17:02:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 17:02:55,771 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:02:55,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:02:55,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:02:55,773 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:02:55,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:02:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash -85929696, now seen corresponding path program 1 times [2021-11-06 17:02:55,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:02:55,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899818475] [2021-11-06 17:02:55,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:02:55,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:02:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:02:56,284 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 17:02:56,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:02:56,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899818475] [2021-11-06 17:02:56,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899818475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:02:56,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:02:56,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:02:56,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337286735] [2021-11-06 17:02:56,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:02:56,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:02:56,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:02:56,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:02:56,288 INFO L87 Difference]: Start difference. First operand 4844 states and 6591 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 17:02:58,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:02:58,916 INFO L93 Difference]: Finished difference Result 14344 states and 19556 transitions. [2021-11-06 17:02:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:02:58,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-11-06 17:02:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:02:58,955 INFO L225 Difference]: With dead ends: 14344 [2021-11-06 17:02:58,955 INFO L226 Difference]: Without dead ends: 9569 [2021-11-06 17:02:58,971 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 17:02:58,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2021-11-06 17:02:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9553. [2021-11-06 17:02:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9553 states, 9541 states have (on average 1.3664186144010062) internal successors, (13037), 9552 states have internal predecessors, (13037), 0 states have call successors, (0), 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 17:02:59,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9553 states to 9553 states and 13037 transitions. [2021-11-06 17:02:59,204 INFO L78 Accepts]: Start accepts. Automaton has 9553 states and 13037 transitions. Word has length 78 [2021-11-06 17:02:59,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:02:59,206 INFO L470 AbstractCegarLoop]: Abstraction has 9553 states and 13037 transitions. [2021-11-06 17:02:59,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 17:02:59,206 INFO L276 IsEmpty]: Start isEmpty. Operand 9553 states and 13037 transitions. [2021-11-06 17:02:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 17:02:59,209 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:02:59,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:02:59,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:02:59,210 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:02:59,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:02:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1639358138, now seen corresponding path program 1 times [2021-11-06 17:02:59,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:02:59,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125662256] [2021-11-06 17:02:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:02:59,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:02:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:02:59,639 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 17:02:59,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:02:59,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125662256] [2021-11-06 17:02:59,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125662256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:02:59,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:02:59,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:02:59,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434072232] [2021-11-06 17:02:59,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:02:59,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:02:59,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:02:59,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:02:59,641 INFO L87 Difference]: Start difference. First operand 9553 states and 13037 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 17:02:59,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:02:59,785 INFO L93 Difference]: Finished difference Result 9553 states and 13037 transitions. [2021-11-06 17:02:59,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:02:59,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-11-06 17:02:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:02:59,822 INFO L225 Difference]: With dead ends: 9553 [2021-11-06 17:02:59,822 INFO L226 Difference]: Without dead ends: 9551 [2021-11-06 17:02:59,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:02:59,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9551 states. [2021-11-06 17:03:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9551 to 9551. [2021-11-06 17:03:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9551 states, 9540 states have (on average 1.3663522012578617) internal successors, (13035), 9550 states have internal predecessors, (13035), 0 states have call successors, (0), 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 17:03:00,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9551 states to 9551 states and 13035 transitions. [2021-11-06 17:03:00,076 INFO L78 Accepts]: Start accepts. Automaton has 9551 states and 13035 transitions. Word has length 81 [2021-11-06 17:03:00,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:00,078 INFO L470 AbstractCegarLoop]: Abstraction has 9551 states and 13035 transitions. [2021-11-06 17:03:00,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 17:03:00,079 INFO L276 IsEmpty]: Start isEmpty. Operand 9551 states and 13035 transitions. [2021-11-06 17:03:00,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 17:03:00,081 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:00,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:00,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:03:00,082 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:00,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:00,083 INFO L85 PathProgramCache]: Analyzing trace with hash -719483101, now seen corresponding path program 1 times [2021-11-06 17:03:00,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:00,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230646139] [2021-11-06 17:03:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:00,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:00,511 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 17:03:00,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:00,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230646139] [2021-11-06 17:03:00,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230646139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:00,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:00,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:03:00,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253859749] [2021-11-06 17:03:00,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:00,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:00,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:00,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:00,513 INFO L87 Difference]: Start difference. First operand 9551 states and 13035 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:03:00,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:00,680 INFO L93 Difference]: Finished difference Result 9551 states and 13035 transitions. [2021-11-06 17:03:00,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:00,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-06 17:03:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:00,726 INFO L225 Difference]: With dead ends: 9551 [2021-11-06 17:03:00,727 INFO L226 Difference]: Without dead ends: 9549 [2021-11-06 17:03:00,731 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:03:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9549 states. [2021-11-06 17:03:01,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9549 to 9549. [2021-11-06 17:03:01,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9539 states have (on average 1.3662857741901666) internal successors, (13033), 9548 states have internal predecessors, (13033), 0 states have call successors, (0), 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 17:03:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 13033 transitions. [2021-11-06 17:03:01,178 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 13033 transitions. Word has length 82 [2021-11-06 17:03:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:01,178 INFO L470 AbstractCegarLoop]: Abstraction has 9549 states and 13033 transitions. [2021-11-06 17:03:01,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 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 17:03:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 13033 transitions. [2021-11-06 17:03:01,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 17:03:01,184 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:01,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:01,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 17:03:01,185 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:01,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:01,185 INFO L85 PathProgramCache]: Analyzing trace with hash -829117468, now seen corresponding path program 1 times [2021-11-06 17:03:01,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:01,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215343730] [2021-11-06 17:03:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:01,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:01,558 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 17:03:01,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:01,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215343730] [2021-11-06 17:03:01,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215343730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:01,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:01,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:03:01,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537368512] [2021-11-06 17:03:01,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:01,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:01,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:01,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:01,560 INFO L87 Difference]: Start difference. First operand 9549 states and 13033 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 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 17:03:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:01,708 INFO L93 Difference]: Finished difference Result 9549 states and 13033 transitions. [2021-11-06 17:03:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-06 17:03:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:01,730 INFO L225 Difference]: With dead ends: 9549 [2021-11-06 17:03:01,730 INFO L226 Difference]: Without dead ends: 9547 [2021-11-06 17:03:01,734 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:03:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2021-11-06 17:03:01,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9547. [2021-11-06 17:03:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9547 states, 9538 states have (on average 1.3662193331935417) internal successors, (13031), 9546 states have internal predecessors, (13031), 0 states have call successors, (0), 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 17:03:01,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9547 states to 9547 states and 13031 transitions. [2021-11-06 17:03:01,985 INFO L78 Accepts]: Start accepts. Automaton has 9547 states and 13031 transitions. Word has length 83 [2021-11-06 17:03:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:01,986 INFO L470 AbstractCegarLoop]: Abstraction has 9547 states and 13031 transitions. [2021-11-06 17:03:01,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 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 17:03:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 9547 states and 13031 transitions. [2021-11-06 17:03:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 17:03:01,992 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:01,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:01,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 17:03:01,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:01,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:01,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1262037419, now seen corresponding path program 1 times [2021-11-06 17:03:01,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:01,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412921106] [2021-11-06 17:03:01,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:01,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:02,354 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 17:03:02,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:02,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412921106] [2021-11-06 17:03:02,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412921106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:02,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:02,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:03:02,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148490343] [2021-11-06 17:03:02,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:02,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:02,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:02,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:02,358 INFO L87 Difference]: Start difference. First operand 9547 states and 13031 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 17:03:04,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:04,595 INFO L93 Difference]: Finished difference Result 23785 states and 32483 transitions. [2021-11-06 17:03:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:04,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-11-06 17:03:04,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:04,631 INFO L225 Difference]: With dead ends: 23785 [2021-11-06 17:03:04,632 INFO L226 Difference]: Without dead ends: 14307 [2021-11-06 17:03:04,651 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 17:03:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14307 states. [2021-11-06 17:03:05,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14307 to 14275. [2021-11-06 17:03:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14275 states, 14266 states have (on average 1.367306883499229) internal successors, (19506), 14274 states have internal predecessors, (19506), 0 states have call successors, (0), 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 17:03:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 19506 transitions. [2021-11-06 17:03:05,218 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 19506 transitions. Word has length 83 [2021-11-06 17:03:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:05,218 INFO L470 AbstractCegarLoop]: Abstraction has 14275 states and 19506 transitions. [2021-11-06 17:03:05,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 17:03:05,219 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 19506 transitions. [2021-11-06 17:03:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 17:03:05,220 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:05,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:05,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 17:03:05,220 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:05,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:05,221 INFO L85 PathProgramCache]: Analyzing trace with hash 67184461, now seen corresponding path program 1 times [2021-11-06 17:03:05,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:05,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209521637] [2021-11-06 17:03:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:05,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:05,588 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 17:03:05,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:05,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209521637] [2021-11-06 17:03:05,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209521637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:05,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:05,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:03:05,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291036355] [2021-11-06 17:03:05,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:05,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:05,590 INFO L87 Difference]: Start difference. First operand 14275 states and 19506 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:03:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:06,336 INFO L93 Difference]: Finished difference Result 42593 states and 58245 transitions. [2021-11-06 17:03:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:06,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-06 17:03:06,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:06,416 INFO L225 Difference]: With dead ends: 42593 [2021-11-06 17:03:06,417 INFO L226 Difference]: Without dead ends: 28382 [2021-11-06 17:03:06,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 17:03:06,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28382 states. [2021-11-06 17:03:07,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28382 to 27190. [2021-11-06 17:03:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27190 states, 27181 states have (on average 1.3676097273830985) internal successors, (37173), 27189 states have internal predecessors, (37173), 0 states have call successors, (0), 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 17:03:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27190 states to 27190 states and 37173 transitions. [2021-11-06 17:03:07,279 INFO L78 Accepts]: Start accepts. Automaton has 27190 states and 37173 transitions. Word has length 84 [2021-11-06 17:03:07,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:07,280 INFO L470 AbstractCegarLoop]: Abstraction has 27190 states and 37173 transitions. [2021-11-06 17:03:07,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:03:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 27190 states and 37173 transitions. [2021-11-06 17:03:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-06 17:03:07,283 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:07,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:07,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 17:03:07,283 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash -732568724, now seen corresponding path program 1 times [2021-11-06 17:03:07,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:07,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632792931] [2021-11-06 17:03:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:07,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:07,617 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 17:03:07,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:07,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632792931] [2021-11-06 17:03:07,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632792931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:07,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:07,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:03:07,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024753733] [2021-11-06 17:03:07,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:07,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:07,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:07,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:07,619 INFO L87 Difference]: Start difference. First operand 27190 states and 37173 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 17:03:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:10,247 INFO L93 Difference]: Finished difference Result 63526 states and 86880 transitions. [2021-11-06 17:03:10,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:10,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-06 17:03:10,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:10,344 INFO L225 Difference]: With dead ends: 63526 [2021-11-06 17:03:10,344 INFO L226 Difference]: Without dead ends: 36405 [2021-11-06 17:03:10,394 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 17:03:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36405 states. [2021-11-06 17:03:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36405 to 36094. [2021-11-06 17:03:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36094 states, 36085 states have (on average 1.3681308022724123) internal successors, (49369), 36093 states have internal predecessors, (49369), 0 states have call successors, (0), 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 17:03:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36094 states to 36094 states and 49369 transitions. [2021-11-06 17:03:11,176 INFO L78 Accepts]: Start accepts. Automaton has 36094 states and 49369 transitions. Word has length 98 [2021-11-06 17:03:11,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:11,176 INFO L470 AbstractCegarLoop]: Abstraction has 36094 states and 49369 transitions. [2021-11-06 17:03:11,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 17:03:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 36094 states and 49369 transitions. [2021-11-06 17:03:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-06 17:03:11,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:11,186 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:11,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 17:03:11,186 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:11,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2111926385, now seen corresponding path program 1 times [2021-11-06 17:03:11,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:11,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011028872] [2021-11-06 17:03:11,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:11,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:03:11,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:11,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011028872] [2021-11-06 17:03:11,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011028872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:11,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:11,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:03:11,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19074371] [2021-11-06 17:03:11,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:11,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:11,658 INFO L87 Difference]: Start difference. First operand 36094 states and 49369 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:03:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:16,420 INFO L93 Difference]: Finished difference Result 82160 states and 112874 transitions. [2021-11-06 17:03:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:16,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-06 17:03:16,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:16,522 INFO L225 Difference]: With dead ends: 82160 [2021-11-06 17:03:16,522 INFO L226 Difference]: Without dead ends: 46135 [2021-11-06 17:03:16,588 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 17:03:16,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46135 states. [2021-11-06 17:03:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46135 to 45790. [2021-11-06 17:03:17,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45790 states, 45781 states have (on average 1.3662654813132085) internal successors, (62549), 45789 states have internal predecessors, (62549), 0 states have call successors, (0), 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 17:03:17,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45790 states to 45790 states and 62549 transitions. [2021-11-06 17:03:17,576 INFO L78 Accepts]: Start accepts. Automaton has 45790 states and 62549 transitions. Word has length 140 [2021-11-06 17:03:17,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:17,577 INFO L470 AbstractCegarLoop]: Abstraction has 45790 states and 62549 transitions. [2021-11-06 17:03:17,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:03:17,577 INFO L276 IsEmpty]: Start isEmpty. Operand 45790 states and 62549 transitions. [2021-11-06 17:03:17,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-06 17:03:17,582 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:17,582 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:17,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 17:03:17,583 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1351231267, now seen corresponding path program 1 times [2021-11-06 17:03:17,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:17,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515415588] [2021-11-06 17:03:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:17,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 17:03:17,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:17,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515415588] [2021-11-06 17:03:17,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515415588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:17,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:17,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:03:17,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257173403] [2021-11-06 17:03:17,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:17,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:17,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:17,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:17,949 INFO L87 Difference]: Start difference. First operand 45790 states and 62549 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 17:03:23,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:23,199 INFO L93 Difference]: Finished difference Result 102378 states and 140576 transitions. [2021-11-06 17:03:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:23,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2021-11-06 17:03:23,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:23,316 INFO L225 Difference]: With dead ends: 102378 [2021-11-06 17:03:23,317 INFO L226 Difference]: Without dead ends: 56657 [2021-11-06 17:03:23,364 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 17:03:23,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56657 states. [2021-11-06 17:03:24,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56657 to 56346. [2021-11-06 17:03:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56346 states, 56337 states have (on average 1.3633846317695297) internal successors, (76809), 56345 states have internal predecessors, (76809), 0 states have call successors, (0), 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 17:03:24,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56346 states to 56346 states and 76809 transitions. [2021-11-06 17:03:24,522 INFO L78 Accepts]: Start accepts. Automaton has 56346 states and 76809 transitions. Word has length 142 [2021-11-06 17:03:24,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:24,522 INFO L470 AbstractCegarLoop]: Abstraction has 56346 states and 76809 transitions. [2021-11-06 17:03:24,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 17:03:24,523 INFO L276 IsEmpty]: Start isEmpty. Operand 56346 states and 76809 transitions. [2021-11-06 17:03:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-06 17:03:24,534 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:24,535 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:24,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 17:03:24,537 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:24,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:24,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1649728965, now seen corresponding path program 1 times [2021-11-06 17:03:24,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:24,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643901022] [2021-11-06 17:03:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:24,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 17:03:24,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:24,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643901022] [2021-11-06 17:03:24,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643901022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:24,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:24,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:03:24,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156873223] [2021-11-06 17:03:24,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:24,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:24,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:24,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:24,919 INFO L87 Difference]: Start difference. First operand 56346 states and 76809 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 17:03:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:30,420 INFO L93 Difference]: Finished difference Result 123524 states and 169130 transitions. [2021-11-06 17:03:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 169 [2021-11-06 17:03:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:30,522 INFO L225 Difference]: With dead ends: 123524 [2021-11-06 17:03:30,523 INFO L226 Difference]: Without dead ends: 67247 [2021-11-06 17:03:30,570 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 17:03:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67247 states. [2021-11-06 17:03:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67247 to 66902. [2021-11-06 17:03:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66902 states, 66893 states have (on average 1.3614130028553062) internal successors, (91069), 66901 states have internal predecessors, (91069), 0 states have call successors, (0), 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 17:03:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66902 states to 66902 states and 91069 transitions. [2021-11-06 17:03:31,853 INFO L78 Accepts]: Start accepts. Automaton has 66902 states and 91069 transitions. Word has length 169 [2021-11-06 17:03:31,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:31,853 INFO L470 AbstractCegarLoop]: Abstraction has 66902 states and 91069 transitions. [2021-11-06 17:03:31,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 17:03:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 66902 states and 91069 transitions. [2021-11-06 17:03:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-06 17:03:31,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:31,866 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:31,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 17:03:31,866 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:31,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:31,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1754777590, now seen corresponding path program 1 times [2021-11-06 17:03:31,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:31,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695408989] [2021-11-06 17:03:31,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:31,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-06 17:03:32,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:32,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695408989] [2021-11-06 17:03:32,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695408989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:32,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:32,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:03:32,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390323665] [2021-11-06 17:03:32,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:03:32,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:03:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:03:32,430 INFO L87 Difference]: Start difference. First operand 66902 states and 91069 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 17:03:37,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:37,936 INFO L93 Difference]: Finished difference Result 145462 states and 198992 transitions. [2021-11-06 17:03:37,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:03:37,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 173 [2021-11-06 17:03:37,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:38,063 INFO L225 Difference]: With dead ends: 145462 [2021-11-06 17:03:38,063 INFO L226 Difference]: Without dead ends: 78629 [2021-11-06 17:03:38,132 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 17:03:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78629 states. [2021-11-06 17:03:39,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78629 to 78318. [2021-11-06 17:03:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78318 states, 78309 states have (on average 1.3588348721092085) internal successors, (106409), 78317 states have internal predecessors, (106409), 0 states have call successors, (0), 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 17:03:39,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78318 states to 78318 states and 106409 transitions. [2021-11-06 17:03:39,853 INFO L78 Accepts]: Start accepts. Automaton has 78318 states and 106409 transitions. Word has length 173 [2021-11-06 17:03:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:39,856 INFO L470 AbstractCegarLoop]: Abstraction has 78318 states and 106409 transitions. [2021-11-06 17:03:39,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 17:03:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 78318 states and 106409 transitions. [2021-11-06 17:03:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 17:03:39,895 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:39,896 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:39,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 17:03:39,896 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:39,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2129111335, now seen corresponding path program 1 times [2021-11-06 17:03:39,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:39,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061495450] [2021-11-06 17:03:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:39,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:40,374 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-06 17:03:40,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:40,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061495450] [2021-11-06 17:03:40,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061495450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:40,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:40,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:03:40,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249680029] [2021-11-06 17:03:40,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:03:40,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:40,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:03:40,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:03:40,376 INFO L87 Difference]: Start difference. First operand 78318 states and 106409 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 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 17:03:47,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:47,810 INFO L93 Difference]: Finished difference Result 305778 states and 413851 transitions. [2021-11-06 17:03:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:03:47,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 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 198 [2021-11-06 17:03:47,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:48,277 INFO L225 Difference]: With dead ends: 305778 [2021-11-06 17:03:48,278 INFO L226 Difference]: Without dead ends: 227529 [2021-11-06 17:03:48,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:03:48,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227529 states. [2021-11-06 17:03:51,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227529 to 78350. [2021-11-06 17:03:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78350 states, 78341 states have (on average 1.3586882985920528) internal successors, (106441), 78349 states have internal predecessors, (106441), 0 states have call successors, (0), 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 17:03:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78350 states to 78350 states and 106441 transitions. [2021-11-06 17:03:51,471 INFO L78 Accepts]: Start accepts. Automaton has 78350 states and 106441 transitions. Word has length 198 [2021-11-06 17:03:51,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:03:51,472 INFO L470 AbstractCegarLoop]: Abstraction has 78350 states and 106441 transitions. [2021-11-06 17:03:51,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 0 states have call successors, (0), 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 17:03:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 78350 states and 106441 transitions. [2021-11-06 17:03:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-06 17:03:51,487 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:03:51,488 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:03:51,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 17:03:51,488 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:03:51,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:03:51,489 INFO L85 PathProgramCache]: Analyzing trace with hash -64638435, now seen corresponding path program 1 times [2021-11-06 17:03:51,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:03:51,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708033908] [2021-11-06 17:03:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:03:51,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:03:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:03:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-06 17:03:52,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:03:52,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708033908] [2021-11-06 17:03:52,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708033908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:03:52,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:03:52,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:03:52,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201674714] [2021-11-06 17:03:52,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:03:52,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:03:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:03:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:03:52,083 INFO L87 Difference]: Start difference. First operand 78350 states and 106441 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 17:03:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:03:58,812 INFO L93 Difference]: Finished difference Result 266962 states and 360420 transitions. [2021-11-06 17:03:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:03:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 204 [2021-11-06 17:03:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:03:59,147 INFO L225 Difference]: With dead ends: 266962 [2021-11-06 17:03:59,148 INFO L226 Difference]: Without dead ends: 188681 [2021-11-06 17:03:59,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:03:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188681 states. [2021-11-06 17:04:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188681 to 78382. [2021-11-06 17:04:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78382 states, 78373 states have (on average 1.3585418447679685) internal successors, (106473), 78381 states have internal predecessors, (106473), 0 states have call successors, (0), 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 17:04:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78382 states to 78382 states and 106473 transitions. [2021-11-06 17:04:02,218 INFO L78 Accepts]: Start accepts. Automaton has 78382 states and 106473 transitions. Word has length 204 [2021-11-06 17:04:02,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:04:02,219 INFO L470 AbstractCegarLoop]: Abstraction has 78382 states and 106473 transitions. [2021-11-06 17:04:02,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 17:04:02,219 INFO L276 IsEmpty]: Start isEmpty. Operand 78382 states and 106473 transitions. [2021-11-06 17:04:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-06 17:04:02,232 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:04:02,232 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:04:02,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 17:04:02,233 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 17:04:02,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:04:02,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1168581842, now seen corresponding path program 1 times [2021-11-06 17:04:02,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:04:02,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466393617] [2021-11-06 17:04:02,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:04:02,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:04:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:04:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-06 17:04:02,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:04:02,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466393617] [2021-11-06 17:04:02,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466393617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:04:02,635 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:04:02,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 17:04:02,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448106714] [2021-11-06 17:04:02,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:04:02,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:04:02,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:04:02,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:04:02,636 INFO L87 Difference]: Start difference. First operand 78382 states and 106473 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)