./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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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--net--wireless--prism54--prism54.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 dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:17:37,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:17:37,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:17:37,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:17:37,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:17:37,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:17:37,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:17:37,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:17:37,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:17:37,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:17:37,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:17:37,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:17:37,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:17:37,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:17:37,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:17:37,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:17:37,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:17:37,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:17:37,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:17:37,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:17:37,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:17:37,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:17:37,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:17:37,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:17:37,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:17:37,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:17:37,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:17:37,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:17:37,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:17:37,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:17:37,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:17:37,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:17:37,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:17:37,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:17:37,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:17:37,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:17:37,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:17:37,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:17:37,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:17:37,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:17:37,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:17:37,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:17:37,184 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:17:37,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:17:37,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:17:37,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:17:37,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:17:37,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:17:37,189 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:17:37,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:17:37,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:17:37,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:17:37,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:17:37,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:17:37,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:17:37,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:17:37,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:17:37,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:17:37,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:17:37,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:17:37,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:17:37,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:17:37,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:17:37,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:17:37,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:17:37,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:17:37,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:17:37,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:17:37,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:17:37,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:17:37,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:17:37,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd6d574d08999b62054724022525ae58fcf8eb53291450098ab652e14e39cce [2021-11-07 15:17:37,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:17:37,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:17:37,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:17:37,465 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:17:37,466 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:17:37,467 INFO L432 ainManager$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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-07 15:17:37,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8cc688c/d8fa89ceaa1f400a8f57ae6d1631db08/FLAG35e346784 [2021-11-07 15:17:38,192 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:17:38,192 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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-07 15:17:38,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8cc688c/d8fa89ceaa1f400a8f57ae6d1631db08/FLAG35e346784 [2021-11-07 15:17:38,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8cc688c/d8fa89ceaa1f400a8f57ae6d1631db08 [2021-11-07 15:17:38,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:17:38,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:17:38,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:17:38,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:17:38,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:17:38,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:17:38" (1/1) ... [2021-11-07 15:17:38,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5b7c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:38, skipping insertion in model container [2021-11-07 15:17:38,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:17:38" (1/1) ... [2021-11-07 15:17:38,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:17:38,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:17:42,313 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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-11-07 15:17:42,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:17:42,760 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:17:43,099 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--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[479141,479154] [2021-11-07 15:17:43,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:17:43,308 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:17:43,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43 WrapperNode [2021-11-07 15:17:43,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:17:43,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:17:43,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:17:43,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:17:43,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:43,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:44,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:17:44,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:17:44,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:17:44,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:17:44,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:44,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:44,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:44,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:45,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:45,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:45,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:45,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:17:45,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:17:45,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:17:45,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:17:45,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (1/1) ... [2021-11-07 15:17:45,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:17:45,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:17:45,784 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) [2021-11-07 15:17:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-07 15:17:45,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-07 15:17:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-07 15:17:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-07 15:17:45,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:17:45,815 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:17:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:17:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:17:45,807 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 [2021-11-07 15:18:13,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:18:13,725 INFO L299 CfgBuilder]: Removed 7738 assume(true) statements. [2021-11-07 15:18:13,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:18:13 BoogieIcfgContainer [2021-11-07 15:18:13,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:18:13,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:18:13,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:18:13,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:18:13,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:17:38" (1/3) ... [2021-11-07 15:18:13,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3567f1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:18:13, skipping insertion in model container [2021-11-07 15:18:13,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:17:43" (2/3) ... [2021-11-07 15:18:13,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3567f1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:18:13, skipping insertion in model container [2021-11-07 15:18:13,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:18:13" (3/3) ... [2021-11-07 15:18:13,738 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-07 15:18:13,741 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:18:13,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2021-11-07 15:18:13,790 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:18:13,794 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 [2021-11-07 15:18:13,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2021-11-07 15:18:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 8448 states, 8357 states have (on average 1.3709465119061863) internal successors, (11457), 8425 states have internal predecessors, (11457), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 15:18:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 15:18:13,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:13,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:13,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:13,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:13,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1087584845, now seen corresponding path program 1 times [2021-11-07 15:18:13,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:13,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922309894] [2021-11-07 15:18:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:13,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:14,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:14,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922309894] [2021-11-07 15:18:14,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922309894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:14,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:14,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:14,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55208963] [2021-11-07 15:18:14,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:14,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:18:14,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:18:14,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:18:14,556 INFO L87 Difference]: Start difference. First operand has 8448 states, 8357 states have (on average 1.3709465119061863) internal successors, (11457), 8425 states have internal predecessors, (11457), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-11-07 15:18:14,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:14,761 INFO L93 Difference]: Finished difference Result 16892 states and 22989 transitions. [2021-11-07 15:18:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:18:14,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2021-11-07 15:18:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:14,802 INFO L225 Difference]: With dead ends: 16892 [2021-11-07 15:18:14,802 INFO L226 Difference]: Without dead ends: 7905 [2021-11-07 15:18:14,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:18:14,830 INFO L933 BasicCegarLoop]: 11297 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11297 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:14,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11297 Invalid, 0 Unknown, 0 Unchecked, 14.16ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:18:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7905 states. [2021-11-07 15:18:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7905 to 7905. [2021-11-07 15:18:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7905 states, 7815 states have (on average 1.3065898912348048) internal successors, (10211), 7882 states have internal predecessors, (10211), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 15:18:15,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7905 states to 7905 states and 10251 transitions. [2021-11-07 15:18:15,073 INFO L78 Accepts]: Start accepts. Automaton has 7905 states and 10251 transitions. Word has length 30 [2021-11-07 15:18:15,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:15,074 INFO L470 AbstractCegarLoop]: Abstraction has 7905 states and 10251 transitions. [2021-11-07 15:18:15,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-11-07 15:18:15,075 INFO L276 IsEmpty]: Start isEmpty. Operand 7905 states and 10251 transitions. [2021-11-07 15:18:15,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 15:18:15,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:15,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:15,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:18:15,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:15,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash 835643189, now seen corresponding path program 1 times [2021-11-07 15:18:15,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:15,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818495899] [2021-11-07 15:18:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:15,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:15,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:15,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818495899] [2021-11-07 15:18:15,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818495899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:15,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:15,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:18:15,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732942973] [2021-11-07 15:18:15,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:15,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:15,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:15,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:15,546 INFO L87 Difference]: Start difference. First operand 7905 states and 10251 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-07 15:18:17,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:18:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:18,130 INFO L93 Difference]: Finished difference Result 23654 states and 30689 transitions. [2021-11-07 15:18:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:18,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-07 15:18:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:18,188 INFO L225 Difference]: With dead ends: 23654 [2021-11-07 15:18:18,189 INFO L226 Difference]: Without dead ends: 15762 [2021-11-07 15:18:18,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:18,207 INFO L933 BasicCegarLoop]: 10268 mSDtfsCounter, 10198 mSDsluCounter, 10229 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2149.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10198 SdHoareTripleChecker+Valid, 20497 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.22ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2264.21ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:18,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10198 Valid, 20497 Invalid, 15 Unknown, 0 Unchecked, 32.22ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2264.21ms Time] [2021-11-07 15:18:18,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15762 states. [2021-11-07 15:18:18,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15762 to 15640. [2021-11-07 15:18:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15640 states, 15528 states have (on average 1.3078310149407522) internal successors, (20308), 15595 states have internal predecessors, (20308), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-07 15:18:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15640 states to 15640 states and 20388 transitions. [2021-11-07 15:18:18,739 INFO L78 Accepts]: Start accepts. Automaton has 15640 states and 20388 transitions. Word has length 30 [2021-11-07 15:18:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:18,739 INFO L470 AbstractCegarLoop]: Abstraction has 15640 states and 20388 transitions. [2021-11-07 15:18:18,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-07 15:18:18,740 INFO L276 IsEmpty]: Start isEmpty. Operand 15640 states and 20388 transitions. [2021-11-07 15:18:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 15:18:18,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:18,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:18,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:18:18,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:18,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:18,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2125490031, now seen corresponding path program 1 times [2021-11-07 15:18:18,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:18,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024675655] [2021-11-07 15:18:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:18,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:19,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:19,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024675655] [2021-11-07 15:18:19,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024675655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:19,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:19,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:18:19,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135359796] [2021-11-07 15:18:19,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:19,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:19,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:19,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:19,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:19,186 INFO L87 Difference]: Start difference. First operand 15640 states and 20388 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-07 15:18:19,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:19,981 INFO L93 Difference]: Finished difference Result 46812 states and 61028 transitions. [2021-11-07 15:18:19,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:19,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-07 15:18:19,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:20,068 INFO L225 Difference]: With dead ends: 46812 [2021-11-07 15:18:20,069 INFO L226 Difference]: Without dead ends: 31185 [2021-11-07 15:18:20,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:20,114 INFO L933 BasicCegarLoop]: 10276 mSDtfsCounter, 10185 mSDsluCounter, 10231 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10185 SdHoareTripleChecker+Valid, 20507 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 170.93ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:20,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10185 Valid, 20507 Invalid, 8 Unknown, 0 Unchecked, 30.96ms Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 170.93ms Time] [2021-11-07 15:18:20,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31185 states. [2021-11-07 15:18:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31185 to 31043. [2021-11-07 15:18:20,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31043 states, 30887 states have (on average 1.3083174150937287) internal successors, (40410), 30954 states have internal predecessors, (40410), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 15:18:20,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31043 states to 31043 states and 40570 transitions. [2021-11-07 15:18:20,838 INFO L78 Accepts]: Start accepts. Automaton has 31043 states and 40570 transitions. Word has length 30 [2021-11-07 15:18:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:20,839 INFO L470 AbstractCegarLoop]: Abstraction has 31043 states and 40570 transitions. [2021-11-07 15:18:20,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-07 15:18:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 31043 states and 40570 transitions. [2021-11-07 15:18:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 15:18:20,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:20,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:20,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:18:20,843 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:20,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash 935321167, now seen corresponding path program 1 times [2021-11-07 15:18:20,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:20,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364806902] [2021-11-07 15:18:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:20,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:21,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:21,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:21,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364806902] [2021-11-07 15:18:21,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364806902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:21,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:21,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:21,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695967261] [2021-11-07 15:18:21,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:21,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:21,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:21,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:21,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:21,292 INFO L87 Difference]: Start difference. First operand 31043 states and 40570 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-07 15:18:21,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:21,720 INFO L93 Difference]: Finished difference Result 31043 states and 40570 transitions. [2021-11-07 15:18:21,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:21,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2021-11-07 15:18:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:21,784 INFO L225 Difference]: With dead ends: 31043 [2021-11-07 15:18:21,785 INFO L226 Difference]: Without dead ends: 31041 [2021-11-07 15:18:21,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:21,801 INFO L933 BasicCegarLoop]: 10248 mSDtfsCounter, 10213 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10213 SdHoareTripleChecker+Valid, 10248 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.45ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:21,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10213 Valid, 10248 Invalid, 1 Unknown, 0 Unchecked, 9.79ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.45ms Time] [2021-11-07 15:18:21,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31041 states. [2021-11-07 15:18:22,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31041 to 31041. [2021-11-07 15:18:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31041 states, 30886 states have (on average 1.3082950203975912) internal successors, (40408), 30952 states have internal predecessors, (40408), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 15:18:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31041 states to 31041 states and 40568 transitions. [2021-11-07 15:18:22,586 INFO L78 Accepts]: Start accepts. Automaton has 31041 states and 40568 transitions. Word has length 38 [2021-11-07 15:18:22,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:22,586 INFO L470 AbstractCegarLoop]: Abstraction has 31041 states and 40568 transitions. [2021-11-07 15:18:22,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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) [2021-11-07 15:18:22,587 INFO L276 IsEmpty]: Start isEmpty. Operand 31041 states and 40568 transitions. [2021-11-07 15:18:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 15:18:22,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:22,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:22,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:18:22,589 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1069782463, now seen corresponding path program 1 times [2021-11-07 15:18:22,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:22,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811271535] [2021-11-07 15:18:22,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:22,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:22,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:22,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811271535] [2021-11-07 15:18:22,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811271535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:22,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:22,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:22,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041156604] [2021-11-07 15:18:22,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:22,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:22,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:22,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:22,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:22,948 INFO L87 Difference]: Start difference. First operand 31041 states and 40568 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-11-07 15:18:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:23,464 INFO L93 Difference]: Finished difference Result 31041 states and 40568 transitions. [2021-11-07 15:18:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:23,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-11-07 15:18:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:23,532 INFO L225 Difference]: With dead ends: 31041 [2021-11-07 15:18:23,532 INFO L226 Difference]: Without dead ends: 31039 [2021-11-07 15:18:23,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:23,546 INFO L933 BasicCegarLoop]: 10246 mSDtfsCounter, 10210 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10210 SdHoareTripleChecker+Valid, 10246 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.48ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:23,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10210 Valid, 10246 Invalid, 1 Unknown, 0 Unchecked, 10.45ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.48ms Time] [2021-11-07 15:18:23,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31039 states. [2021-11-07 15:18:24,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31039 to 31039. [2021-11-07 15:18:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31039 states, 30885 states have (on average 1.3082726242512546) internal successors, (40406), 30950 states have internal predecessors, (40406), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 15:18:24,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31039 states to 31039 states and 40566 transitions. [2021-11-07 15:18:24,224 INFO L78 Accepts]: Start accepts. Automaton has 31039 states and 40566 transitions. Word has length 39 [2021-11-07 15:18:24,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:24,226 INFO L470 AbstractCegarLoop]: Abstraction has 31039 states and 40566 transitions. [2021-11-07 15:18:24,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-11-07 15:18:24,229 INFO L276 IsEmpty]: Start isEmpty. Operand 31039 states and 40566 transitions. [2021-11-07 15:18:24,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 15:18:24,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:24,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:24,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:18:24,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1196514457, now seen corresponding path program 1 times [2021-11-07 15:18:24,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:24,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057861264] [2021-11-07 15:18:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:24,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:24,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:24,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057861264] [2021-11-07 15:18:24,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057861264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:24,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:24,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:24,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814356160] [2021-11-07 15:18:24,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:24,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:24,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:24,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:24,518 INFO L87 Difference]: Start difference. First operand 31039 states and 40566 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2021-11-07 15:18:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:25,060 INFO L93 Difference]: Finished difference Result 31039 states and 40566 transitions. [2021-11-07 15:18:25,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:25,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-07 15:18:25,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:25,121 INFO L225 Difference]: With dead ends: 31039 [2021-11-07 15:18:25,121 INFO L226 Difference]: Without dead ends: 31023 [2021-11-07 15:18:25,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:25,135 INFO L933 BasicCegarLoop]: 10223 mSDtfsCounter, 10067 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10067 SdHoareTripleChecker+Valid, 10300 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.84ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.63ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:25,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10067 Valid, 10300 Invalid, 64 Unknown, 0 Unchecked, 9.84ms Time], IncrementalHoareTripleChecker [21 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 62.63ms Time] [2021-11-07 15:18:25,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31023 states. [2021-11-07 15:18:25,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31023 to 31023. [2021-11-07 15:18:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31023 states, 30877 states have (on average 1.3074132849693947) internal successors, (40369), 30934 states have internal predecessors, (40369), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2021-11-07 15:18:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31023 states to 31023 states and 40529 transitions. [2021-11-07 15:18:25,824 INFO L78 Accepts]: Start accepts. Automaton has 31023 states and 40529 transitions. Word has length 40 [2021-11-07 15:18:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:25,824 INFO L470 AbstractCegarLoop]: Abstraction has 31023 states and 40529 transitions. [2021-11-07 15:18:25,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2021-11-07 15:18:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 31023 states and 40529 transitions. [2021-11-07 15:18:25,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 15:18:25,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:25,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:25,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:18:25,827 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:25,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:25,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1562725045, now seen corresponding path program 1 times [2021-11-07 15:18:25,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:25,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685185636] [2021-11-07 15:18:25,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:25,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:26,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:26,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685185636] [2021-11-07 15:18:26,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685185636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:26,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:26,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:26,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495958804] [2021-11-07 15:18:26,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:26,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:26,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:26,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:26,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:26,168 INFO L87 Difference]: Start difference. First operand 31023 states and 40529 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-11-07 15:18:27,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:27,602 INFO L93 Difference]: Finished difference Result 92538 states and 120999 transitions. [2021-11-07 15:18:27,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:27,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2021-11-07 15:18:27,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:27,743 INFO L225 Difference]: With dead ends: 92538 [2021-11-07 15:18:27,743 INFO L226 Difference]: Without dead ends: 61528 [2021-11-07 15:18:27,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:27,801 INFO L933 BasicCegarLoop]: 12494 mSDtfsCounter, 10095 mSDsluCounter, 9998 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10095 SdHoareTripleChecker+Valid, 22492 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.13ms SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180.52ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:27,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10095 Valid, 22492 Invalid, 193 Unknown, 0 Unchecked, 22.13ms Time], IncrementalHoareTripleChecker [77 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 180.52ms Time] [2021-11-07 15:18:27,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61528 states. [2021-11-07 15:18:28,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61528 to 55872. [2021-11-07 15:18:28,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55872 states, 55638 states have (on average 1.308350407994536) internal successors, (72794), 55695 states have internal predecessors, (72794), 160 states have call successors, (160), 16 states have call predecessors, (160), 16 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-07 15:18:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55872 states to 55872 states and 73114 transitions. [2021-11-07 15:18:29,105 INFO L78 Accepts]: Start accepts. Automaton has 55872 states and 73114 transitions. Word has length 41 [2021-11-07 15:18:29,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:29,105 INFO L470 AbstractCegarLoop]: Abstraction has 55872 states and 73114 transitions. [2021-11-07 15:18:29,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 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) [2021-11-07 15:18:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 55872 states and 73114 transitions. [2021-11-07 15:18:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 15:18:29,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:29,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:29,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 15:18:29,108 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1199803677, now seen corresponding path program 1 times [2021-11-07 15:18:29,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:29,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730409657] [2021-11-07 15:18:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:29,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:29,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:29,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:29,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730409657] [2021-11-07 15:18:29,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730409657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:29,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:29,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:29,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741848716] [2021-11-07 15:18:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:29,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:29,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:29,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:29,463 INFO L87 Difference]: Start difference. First operand 55872 states and 73114 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2021-11-07 15:18:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:30,577 INFO L93 Difference]: Finished difference Result 55872 states and 73114 transitions. [2021-11-07 15:18:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:30,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-11-07 15:18:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:30,704 INFO L225 Difference]: With dead ends: 55872 [2021-11-07 15:18:30,704 INFO L226 Difference]: Without dead ends: 55870 [2021-11-07 15:18:30,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:30,731 INFO L933 BasicCegarLoop]: 10228 mSDtfsCounter, 10189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10189 SdHoareTripleChecker+Valid, 10228 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.48ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:30,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10189 Valid, 10228 Invalid, 1 Unknown, 0 Unchecked, 10.82ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.48ms Time] [2021-11-07 15:18:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55870 states. [2021-11-07 15:18:31,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55870 to 55870. [2021-11-07 15:18:31,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55870 states, 55637 states have (on average 1.3083379765264123) internal successors, (72792), 55693 states have internal predecessors, (72792), 160 states have call successors, (160), 16 states have call predecessors, (160), 16 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2021-11-07 15:18:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55870 states to 55870 states and 73112 transitions. [2021-11-07 15:18:32,113 INFO L78 Accepts]: Start accepts. Automaton has 55870 states and 73112 transitions. Word has length 42 [2021-11-07 15:18:32,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:32,113 INFO L470 AbstractCegarLoop]: Abstraction has 55870 states and 73112 transitions. [2021-11-07 15:18:32,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2021-11-07 15:18:32,114 INFO L276 IsEmpty]: Start isEmpty. Operand 55870 states and 73112 transitions. [2021-11-07 15:18:32,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 15:18:32,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:32,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:32,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 15:18:32,117 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:32,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:32,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1460824149, now seen corresponding path program 1 times [2021-11-07 15:18:32,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:32,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078231168] [2021-11-07 15:18:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:32,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:32,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:32,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078231168] [2021-11-07 15:18:32,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078231168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:32,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:32,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:32,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964722611] [2021-11-07 15:18:32,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:32,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:32,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:32,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:32,415 INFO L87 Difference]: Start difference. First operand 55870 states and 73112 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:18:34,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:34,662 INFO L93 Difference]: Finished difference Result 167557 states and 219280 transitions. [2021-11-07 15:18:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:34,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-07 15:18:34,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:34,892 INFO L225 Difference]: With dead ends: 167557 [2021-11-07 15:18:34,892 INFO L226 Difference]: Without dead ends: 111700 [2021-11-07 15:18:34,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:34,968 INFO L933 BasicCegarLoop]: 10246 mSDtfsCounter, 10181 mSDsluCounter, 10201 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10181 SdHoareTripleChecker+Valid, 20447 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.34ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.32ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:34,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10181 Valid, 20447 Invalid, 13 Unknown, 0 Unchecked, 21.34ms Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 14.32ms Time] [2021-11-07 15:18:35,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111700 states. [2021-11-07 15:18:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111700 to 109712. [2021-11-07 15:18:37,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109712 states, 109303 states have (on average 1.308847881576901) internal successors, (143061), 109359 states have internal predecessors, (143061), 320 states have call successors, (320), 32 states have call predecessors, (320), 32 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2021-11-07 15:18:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109712 states to 109712 states and 143701 transitions. [2021-11-07 15:18:37,749 INFO L78 Accepts]: Start accepts. Automaton has 109712 states and 143701 transitions. Word has length 43 [2021-11-07 15:18:37,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:37,750 INFO L470 AbstractCegarLoop]: Abstraction has 109712 states and 143701 transitions. [2021-11-07 15:18:37,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:18:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 109712 states and 143701 transitions. [2021-11-07 15:18:37,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 15:18:37,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:37,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:37,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 15:18:37,752 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:37,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:37,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1959059155, now seen corresponding path program 1 times [2021-11-07 15:18:37,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:37,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679362564] [2021-11-07 15:18:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:37,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:38,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:38,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679362564] [2021-11-07 15:18:38,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679362564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:38,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:38,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:18:38,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376454806] [2021-11-07 15:18:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:38,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:38,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:38,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:38,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:38,129 INFO L87 Difference]: Start difference. First operand 109712 states and 143701 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-07 15:18:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:18:40,189 INFO L93 Difference]: Finished difference Result 109712 states and 143701 transitions. [2021-11-07 15:18:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:18:40,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-07 15:18:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:18:40,402 INFO L225 Difference]: With dead ends: 109712 [2021-11-07 15:18:40,402 INFO L226 Difference]: Without dead ends: 109700 [2021-11-07 15:18:40,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:40,433 INFO L933 BasicCegarLoop]: 10227 mSDtfsCounter, 10185 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10185 SdHoareTripleChecker+Valid, 10227 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:18:40,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10185 Valid, 10227 Invalid, 0 Unknown, 0 Unchecked, 10.69ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:18:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109700 states. [2021-11-07 15:18:42,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109700 to 109700. [2021-11-07 15:18:42,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109700 states, 109292 states have (on average 1.3088240676353255) internal successors, (143044), 109347 states have internal predecessors, (143044), 320 states have call successors, (320), 32 states have call predecessors, (320), 32 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2021-11-07 15:18:43,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109700 states to 109700 states and 143684 transitions. [2021-11-07 15:18:43,287 INFO L78 Accepts]: Start accepts. Automaton has 109700 states and 143684 transitions. Word has length 44 [2021-11-07 15:18:43,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:18:43,288 INFO L470 AbstractCegarLoop]: Abstraction has 109700 states and 143684 transitions. [2021-11-07 15:18:43,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-11-07 15:18:43,288 INFO L276 IsEmpty]: Start isEmpty. Operand 109700 states and 143684 transitions. [2021-11-07 15:18:43,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 15:18:43,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:18:43,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:18:43,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 15:18:43,293 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-07 15:18:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:18:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1685539396, now seen corresponding path program 1 times [2021-11-07 15:18:43,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:18:43,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544393210] [2021-11-07 15:18:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:18:43,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:18:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:18:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:18:43,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:18:43,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544393210] [2021-11-07 15:18:43,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544393210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:18:43,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:18:43,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:18:43,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115087462] [2021-11-07 15:18:43,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:18:43,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:18:43,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:18:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:18:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:18:43,562 INFO L87 Difference]: Start difference. First operand 109700 states and 143684 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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)