./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.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 c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 05:20:24,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 05:20:24,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 05:20:24,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 05:20:24,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 05:20:24,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 05:20:24,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 05:20:24,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 05:20:24,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 05:20:24,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 05:20:24,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 05:20:24,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 05:20:24,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 05:20:24,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 05:20:24,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 05:20:24,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 05:20:24,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 05:20:24,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 05:20:24,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 05:20:24,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 05:20:24,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 05:20:24,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 05:20:24,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 05:20:24,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 05:20:24,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 05:20:24,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 05:20:24,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 05:20:24,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 05:20:24,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 05:20:24,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 05:20:24,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 05:20:24,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 05:20:24,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 05:20:24,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 05:20:24,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 05:20:24,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 05:20:24,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 05:20:24,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 05:20:24,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 05:20:24,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 05:20:24,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 05:20:24,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 05:20:24,217 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 05:20:24,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 05:20:24,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 05:20:24,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 05:20:24,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 05:20:24,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 05:20:24,220 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 05:20:24,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 05:20:24,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 05:20:24,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 05:20:24,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 05:20:24,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 05:20:24,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 05:20:24,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 05:20:24,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 05:20:24,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 05:20:24,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 05:20:24,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 05:20:24,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 05:20:24,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:20:24,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 05:20:24,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 05:20:24,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 05:20:24,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 05:20:24,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 05:20:24,223 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 05:20:24,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 05:20:24,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 05:20:24,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 05:20:24,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3c8f5f42e93f38ff45b5fb218b90423c4fa8214795cc0db5e91266a2717c97b [2021-11-04 05:20:24,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 05:20:24,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 05:20:24,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 05:20:24,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 05:20:24,475 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 05:20:24,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-04 05:20:24,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9718f2db/ef5fcf31a37d40d0a6494355f3bc8a91/FLAGf1d3d1bfa [2021-11-04 05:20:25,124 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 05:20:25,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-04 05:20:25,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9718f2db/ef5fcf31a37d40d0a6494355f3bc8a91/FLAGf1d3d1bfa [2021-11-04 05:20:25,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9718f2db/ef5fcf31a37d40d0a6494355f3bc8a91 [2021-11-04 05:20:25,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 05:20:25,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 05:20:25,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 05:20:25,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 05:20:25,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 05:20:25,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:20:25" (1/1) ... [2021-11-04 05:20:25,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2602ac2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:25, skipping insertion in model container [2021-11-04 05:20:25,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 05:20:25" (1/1) ... [2021-11-04 05:20:25,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 05:20:25,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 05:20:26,253 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-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-04 05:20:26,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:20:26,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 05:20:26,933 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-validator-v0.6/linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i[98402,98415] [2021-11-04 05:20:27,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 05:20:27,150 INFO L208 MainTranslator]: Completed translation [2021-11-04 05:20:27,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27 WrapperNode [2021-11-04 05:20:27,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 05:20:27,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 05:20:27,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 05:20:27,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 05:20:27,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 05:20:27,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 05:20:27,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 05:20:27,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 05:20:27,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 05:20:27,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 05:20:27,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 05:20:27,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 05:20:27,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (1/1) ... [2021-11-04 05:20:27,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 05:20:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:20:27,783 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) [2021-11-04 05:20:27,788 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 [2021-11-04 05:20:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-04 05:20:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 05:20:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 05:20:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 05:20:27,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 05:20:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 05:20:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 05:20:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 05:20:27,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 05:20:37,830 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 05:20:37,831 INFO L299 CfgBuilder]: Removed 1746 assume(true) statements. [2021-11-04 05:20:37,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:20:37 BoogieIcfgContainer [2021-11-04 05:20:37,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 05:20:37,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 05:20:37,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 05:20:37,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 05:20:37,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 05:20:25" (1/3) ... [2021-11-04 05:20:37,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ee636a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:20:37, skipping insertion in model container [2021-11-04 05:20:37,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 05:20:27" (2/3) ... [2021-11-04 05:20:37,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ee636a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 05:20:37, skipping insertion in model container [2021-11-04 05:20:37,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 05:20:37" (3/3) ... [2021-11-04 05:20:37,840 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-a9e7fb5-1-32_7a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-11-04 05:20:37,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 05:20:37,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-04 05:20:37,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 05:20:37,893 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 [2021-11-04 05:20:37,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-04 05:20:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 2043 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 2042 states have internal predecessors, (2890), 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) [2021-11-04 05:20:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-04 05:20:37,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:20:37,941 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] [2021-11-04 05:20:37,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:20:37,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:20:37,945 INFO L85 PathProgramCache]: Analyzing trace with hash -196032821, now seen corresponding path program 1 times [2021-11-04 05:20:37,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:20:37,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910660879] [2021-11-04 05:20:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:20:37,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:20:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:20:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 05:20:38,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:20:38,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910660879] [2021-11-04 05:20:38,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910660879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:20:38,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:20:38,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:20:38,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796216315] [2021-11-04 05:20:38,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:20:38,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:20:38,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:20:38,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:20:38,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:20:38,543 INFO L87 Difference]: Start difference. First operand has 2043 states, 1971 states have (on average 1.4662607813292745) internal successors, (2890), 2042 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-04 05:20:41,126 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:21:00,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:21:23,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:21:23,243 INFO L93 Difference]: Finished difference Result 4082 states and 5775 transitions. [2021-11-04 05:21:23,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:21:23,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-11-04 05:21:23,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:21:23,276 INFO L225 Difference]: With dead ends: 4082 [2021-11-04 05:21:23,276 INFO L226 Difference]: Without dead ends: 2033 [2021-11-04 05:21:23,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:21:23,300 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 5513 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41662.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 67.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44164.10ms IncrementalHoareTripleChecker+Time [2021-11-04 05:21:23,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 5514 Unknown, 0 Unchecked, 67.07ms Time], IncrementalHoareTripleChecker [0 Valid, 5513 Invalid, 1 Unknown, 0 Unchecked, 44164.10ms Time] [2021-11-04 05:21:23,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2021-11-04 05:21:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 2033. [2021-11-04 05:21:23,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1962 states have (on average 1.400611620795107) internal successors, (2748), 2032 states have internal predecessors, (2748), 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) [2021-11-04 05:21:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2748 transitions. [2021-11-04 05:21:23,434 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2748 transitions. Word has length 31 [2021-11-04 05:21:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:21:23,435 INFO L470 AbstractCegarLoop]: Abstraction has 2033 states and 2748 transitions. [2021-11-04 05:21:23,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-04 05:21:23,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2748 transitions. [2021-11-04 05:21:23,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-04 05:21:23,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:21:23,440 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] [2021-11-04 05:21:23,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 05:21:23,441 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:21:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:21:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 2135002091, now seen corresponding path program 1 times [2021-11-04 05:21:23,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:21:23,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181534473] [2021-11-04 05:21:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:21:23,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:21:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:21:23,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:21:23,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:21:23,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181534473] [2021-11-04 05:21:23,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181534473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:21:23,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:21:23,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:21:23,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870796307] [2021-11-04 05:21:23,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:21:23,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:21:23,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:21:23,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:21:23,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:21:23,786 INFO L87 Difference]: Start difference. First operand 2033 states and 2748 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-04 05:21:25,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:22:05,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:22:05,875 INFO L93 Difference]: Finished difference Result 5463 states and 7385 transitions. [2021-11-04 05:22:05,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:22:05,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-11-04 05:22:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:22:05,887 INFO L225 Difference]: With dead ends: 5463 [2021-11-04 05:22:05,887 INFO L226 Difference]: Without dead ends: 3481 [2021-11-04 05:22:05,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:22:05,891 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1946 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 5490 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39246.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.00ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41582.08ms IncrementalHoareTripleChecker+Time [2021-11-04 05:22:05,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1946 Valid, 0 Invalid, 5492 Unknown, 0 Unchecked, 64.00ms Time], IncrementalHoareTripleChecker [1 Valid, 5490 Invalid, 1 Unknown, 0 Unchecked, 41582.08ms Time] [2021-11-04 05:22:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-11-04 05:22:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 3339. [2021-11-04 05:22:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3339 states, 3268 states have (on average 1.407282741738066) internal successors, (4599), 3338 states have internal predecessors, (4599), 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) [2021-11-04 05:22:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3339 states to 3339 states and 4599 transitions. [2021-11-04 05:22:05,949 INFO L78 Accepts]: Start accepts. Automaton has 3339 states and 4599 transitions. Word has length 32 [2021-11-04 05:22:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:22:05,949 INFO L470 AbstractCegarLoop]: Abstraction has 3339 states and 4599 transitions. [2021-11-04 05:22:05,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-04 05:22:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 4599 transitions. [2021-11-04 05:22:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-04 05:22:05,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:22:05,951 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] [2021-11-04 05:22:05,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 05:22:05,951 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:22:05,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:22:05,952 INFO L85 PathProgramCache]: Analyzing trace with hash -39044696, now seen corresponding path program 1 times [2021-11-04 05:22:05,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:22:05,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470520646] [2021-11-04 05:22:05,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:22:05,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:22:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:22:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:22:06,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:22:06,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470520646] [2021-11-04 05:22:06,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470520646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:22:06,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:22:06,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:22:06,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47361820] [2021-11-04 05:22:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:22:06,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:22:06,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:22:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:22:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:22:06,215 INFO L87 Difference]: Start difference. First operand 3339 states and 4599 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-04 05:22:08,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:22:54,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:22:54,612 INFO L93 Difference]: Finished difference Result 8431 states and 11659 transitions. [2021-11-04 05:22:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:22:54,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-11-04 05:22:54,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:22:54,641 INFO L225 Difference]: With dead ends: 8431 [2021-11-04 05:22:54,642 INFO L226 Difference]: Without dead ends: 5143 [2021-11-04 05:22:54,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:22:54,665 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1637 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 6214 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45809.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.41ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47939.62ms IncrementalHoareTripleChecker+Time [2021-11-04 05:22:54,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1637 Valid, 0 Invalid, 6218 Unknown, 0 Unchecked, 32.41ms Time], IncrementalHoareTripleChecker [3 Valid, 6214 Invalid, 1 Unknown, 0 Unchecked, 47939.62ms Time] [2021-11-04 05:22:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5143 states. [2021-11-04 05:22:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 5039. [2021-11-04 05:22:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5039 states, 4968 states have (on average 1.421497584541063) internal successors, (7062), 5038 states have internal predecessors, (7062), 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) [2021-11-04 05:22:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5039 states to 5039 states and 7062 transitions. [2021-11-04 05:22:54,751 INFO L78 Accepts]: Start accepts. Automaton has 5039 states and 7062 transitions. Word has length 33 [2021-11-04 05:22:54,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:22:54,751 INFO L470 AbstractCegarLoop]: Abstraction has 5039 states and 7062 transitions. [2021-11-04 05:22:54,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2021-11-04 05:22:54,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5039 states and 7062 transitions. [2021-11-04 05:22:54,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-04 05:22:54,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:22:54,754 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] [2021-11-04 05:22:54,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 05:22:54,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:22:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:22:54,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1530761963, now seen corresponding path program 1 times [2021-11-04 05:22:54,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:22:54,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157414421] [2021-11-04 05:22:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:22:54,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:22:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:22:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:22:55,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:22:55,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157414421] [2021-11-04 05:22:55,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157414421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:22:55,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:22:55,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:22:55,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397620808] [2021-11-04 05:22:55,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:22:55,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:22:55,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:22:55,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:22:55,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:22:55,028 INFO L87 Difference]: Start difference. First operand 5039 states and 7062 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-04 05:22:57,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:23:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:23:43,761 INFO L93 Difference]: Finished difference Result 14933 states and 20967 transitions. [2021-11-04 05:23:43,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:23:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-11-04 05:23:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:23:43,788 INFO L225 Difference]: With dead ends: 14933 [2021-11-04 05:23:43,789 INFO L226 Difference]: Without dead ends: 9945 [2021-11-04 05:23:43,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:23:43,796 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2614 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 6200 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45553.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.35ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48144.90ms IncrementalHoareTripleChecker+Time [2021-11-04 05:23:43,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2614 Valid, 0 Invalid, 6204 Unknown, 0 Unchecked, 35.35ms Time], IncrementalHoareTripleChecker [3 Valid, 6200 Invalid, 1 Unknown, 0 Unchecked, 48144.90ms Time] [2021-11-04 05:23:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9945 states. [2021-11-04 05:23:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9945 to 9807. [2021-11-04 05:23:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9807 states, 9736 states have (on average 1.4260476581758423) internal successors, (13884), 9806 states have internal predecessors, (13884), 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) [2021-11-04 05:23:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9807 states to 9807 states and 13884 transitions. [2021-11-04 05:23:43,953 INFO L78 Accepts]: Start accepts. Automaton has 9807 states and 13884 transitions. Word has length 36 [2021-11-04 05:23:43,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:23:43,953 INFO L470 AbstractCegarLoop]: Abstraction has 9807 states and 13884 transitions. [2021-11-04 05:23:43,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-11-04 05:23:43,954 INFO L276 IsEmpty]: Start isEmpty. Operand 9807 states and 13884 transitions. [2021-11-04 05:23:43,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-04 05:23:43,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:23:43,954 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] [2021-11-04 05:23:43,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 05:23:43,955 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:23:43,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:23:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1518735807, now seen corresponding path program 1 times [2021-11-04 05:23:43,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:23:43,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437702390] [2021-11-04 05:23:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:23:43,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:23:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:23:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:23:44,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:23:44,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437702390] [2021-11-04 05:23:44,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437702390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:23:44,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:23:44,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:23:44,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963921212] [2021-11-04 05:23:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:23:44,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:23:44,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:23:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:23:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:23:44,197 INFO L87 Difference]: Start difference. First operand 9807 states and 13884 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-11-04 05:23:46,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:24:31,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:24:31,706 INFO L93 Difference]: Finished difference Result 26910 states and 38136 transitions. [2021-11-04 05:24:31,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:24:31,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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 [2021-11-04 05:24:31,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:24:31,742 INFO L225 Difference]: With dead ends: 26910 [2021-11-04 05:24:31,743 INFO L226 Difference]: Without dead ends: 17154 [2021-11-04 05:24:31,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:31,754 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2195 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 6221 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44335.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2195 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.89ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6221 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46845.85ms IncrementalHoareTripleChecker+Time [2021-11-04 05:24:31,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2195 Valid, 0 Invalid, 6223 Unknown, 0 Unchecked, 36.89ms Time], IncrementalHoareTripleChecker [1 Valid, 6221 Invalid, 1 Unknown, 0 Unchecked, 46845.85ms Time] [2021-11-04 05:24:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17154 states. [2021-11-04 05:24:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17154 to 17037. [2021-11-04 05:24:32,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17037 states, 16966 states have (on average 1.4288577154308617) internal successors, (24242), 17036 states have internal predecessors, (24242), 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) [2021-11-04 05:24:32,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17037 states to 17037 states and 24242 transitions. [2021-11-04 05:24:32,034 INFO L78 Accepts]: Start accepts. Automaton has 17037 states and 24242 transitions. Word has length 38 [2021-11-04 05:24:32,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:24:32,035 INFO L470 AbstractCegarLoop]: Abstraction has 17037 states and 24242 transitions. [2021-11-04 05:24:32,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-11-04 05:24:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 17037 states and 24242 transitions. [2021-11-04 05:24:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-04 05:24:32,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:24:32,040 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] [2021-11-04 05:24:32,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 05:24:32,041 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:24:32,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:24:32,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2011662593, now seen corresponding path program 1 times [2021-11-04 05:24:32,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:24:32,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970299484] [2021-11-04 05:24:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:24:32,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:24:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:24:32,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:24:32,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:24:32,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970299484] [2021-11-04 05:24:32,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970299484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:24:32,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:24:32,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:24:32,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917920539] [2021-11-04 05:24:32,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:24:32,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:24:32,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:24:32,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:24:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:24:32,243 INFO L87 Difference]: Start difference. First operand 17037 states and 24242 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 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) [2021-11-04 05:24:34,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:25:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:25:21,534 INFO L93 Difference]: Finished difference Result 48496 states and 68925 transitions. [2021-11-04 05:25:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:25:21,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 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 [2021-11-04 05:25:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:25:21,594 INFO L225 Difference]: With dead ends: 48496 [2021-11-04 05:25:21,594 INFO L226 Difference]: Without dead ends: 31510 [2021-11-04 05:25:21,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:25:21,620 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2420 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 6653 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45901.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2420 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.77ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6653 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48475.35ms IncrementalHoareTripleChecker+Time [2021-11-04 05:25:21,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2420 Valid, 0 Invalid, 6655 Unknown, 0 Unchecked, 35.77ms Time], IncrementalHoareTripleChecker [1 Valid, 6653 Invalid, 1 Unknown, 0 Unchecked, 48475.35ms Time] [2021-11-04 05:25:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31510 states. [2021-11-04 05:25:22,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31510 to 31353. [2021-11-04 05:25:22,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31353 states, 31282 states have (on average 1.4266990601623937) internal successors, (44630), 31352 states have internal predecessors, (44630), 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) [2021-11-04 05:25:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31353 states to 31353 states and 44630 transitions. [2021-11-04 05:25:22,144 INFO L78 Accepts]: Start accepts. Automaton has 31353 states and 44630 transitions. Word has length 39 [2021-11-04 05:25:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:25:22,145 INFO L470 AbstractCegarLoop]: Abstraction has 31353 states and 44630 transitions. [2021-11-04 05:25:22,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 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) [2021-11-04 05:25:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 31353 states and 44630 transitions. [2021-11-04 05:25:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-04 05:25:22,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:25:22,146 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] [2021-11-04 05:25:22,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 05:25:22,146 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:25:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:25:22,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1969780938, now seen corresponding path program 1 times [2021-11-04 05:25:22,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:25:22,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596586915] [2021-11-04 05:25:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:25:22,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:25:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:25:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:25:22,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:25:22,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596586915] [2021-11-04 05:25:22,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596586915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:25:22,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:25:22,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:25:22,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509460510] [2021-11-04 05:25:22,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:25:22,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:25:22,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:25:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:25:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:25:22,529 INFO L87 Difference]: Start difference. First operand 31353 states and 44630 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 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) [2021-11-04 05:25:24,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:26:15,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:26:15,954 INFO L93 Difference]: Finished difference Result 89721 states and 127708 transitions. [2021-11-04 05:26:15,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:26:15,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 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 [2021-11-04 05:26:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:26:16,093 INFO L225 Difference]: With dead ends: 89721 [2021-11-04 05:26:16,093 INFO L226 Difference]: Without dead ends: 58419 [2021-11-04 05:26:16,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:26:16,134 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2446 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 6888 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49550.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.58ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52295.24ms IncrementalHoareTripleChecker+Time [2021-11-04 05:26:16,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2446 Valid, 0 Invalid, 6890 Unknown, 0 Unchecked, 36.58ms Time], IncrementalHoareTripleChecker [1 Valid, 6888 Invalid, 1 Unknown, 0 Unchecked, 52295.24ms Time] [2021-11-04 05:26:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58419 states. [2021-11-04 05:26:17,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58419 to 58273. [2021-11-04 05:26:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58273 states, 58202 states have (on average 1.4264458266038968) internal successors, (83022), 58272 states have internal predecessors, (83022), 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) [2021-11-04 05:26:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58273 states to 58273 states and 83022 transitions. [2021-11-04 05:26:17,427 INFO L78 Accepts]: Start accepts. Automaton has 58273 states and 83022 transitions. Word has length 40 [2021-11-04 05:26:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:26:17,427 INFO L470 AbstractCegarLoop]: Abstraction has 58273 states and 83022 transitions. [2021-11-04 05:26:17,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 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) [2021-11-04 05:26:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 58273 states and 83022 transitions. [2021-11-04 05:26:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-04 05:26:17,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:26:17,428 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] [2021-11-04 05:26:17,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 05:26:17,428 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:26:17,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:26:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1241209579, now seen corresponding path program 1 times [2021-11-04 05:26:17,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:26:17,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661080234] [2021-11-04 05:26:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:26:17,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:26:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:26:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:26:17,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:26:17,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661080234] [2021-11-04 05:26:17,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661080234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:26:17,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:26:17,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-04 05:26:17,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663900783] [2021-11-04 05:26:17,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:26:17,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-04 05:26:17,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:26:17,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-04 05:26:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:26:17,873 INFO L87 Difference]: Start difference. First operand 58273 states and 83022 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2021-11-04 05:26:19,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:27:23,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:27:23,373 INFO L93 Difference]: Finished difference Result 116817 states and 166384 transitions. [2021-11-04 05:27:23,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-04 05:27:23,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 45 [2021-11-04 05:27:23,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:27:23,485 INFO L225 Difference]: With dead ends: 116817 [2021-11-04 05:27:23,485 INFO L226 Difference]: Without dead ends: 58595 [2021-11-04 05:27:23,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 293.88ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:27:23,547 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10698 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 8542 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60648.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10698 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 113.68ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63870.52ms IncrementalHoareTripleChecker+Time [2021-11-04 05:27:23,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10698 Valid, 0 Invalid, 8546 Unknown, 0 Unchecked, 113.68ms Time], IncrementalHoareTripleChecker [3 Valid, 8542 Invalid, 1 Unknown, 0 Unchecked, 63870.52ms Time] [2021-11-04 05:27:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58595 states. [2021-11-04 05:27:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58595 to 29199. [2021-11-04 05:27:24,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29199 states, 29128 states have (on average 1.42742378467454) internal successors, (41578), 29198 states have internal predecessors, (41578), 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) [2021-11-04 05:27:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29199 states to 29199 states and 41578 transitions. [2021-11-04 05:27:24,424 INFO L78 Accepts]: Start accepts. Automaton has 29199 states and 41578 transitions. Word has length 45 [2021-11-04 05:27:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:27:24,425 INFO L470 AbstractCegarLoop]: Abstraction has 29199 states and 41578 transitions. [2021-11-04 05:27:24,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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) [2021-11-04 05:27:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 29199 states and 41578 transitions. [2021-11-04 05:27:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-04 05:27:24,425 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:27:24,425 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] [2021-11-04 05:27:24,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 05:27:24,426 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:27:24,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:27:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1183951277, now seen corresponding path program 1 times [2021-11-04 05:27:24,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:27:24,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016341838] [2021-11-04 05:27:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:27:24,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:27:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:27:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:27:24,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:27:24,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016341838] [2021-11-04 05:27:24,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016341838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:27:24,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:27:24,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:27:24,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424207173] [2021-11-04 05:27:24,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:27:24,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:27:24,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:27:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:27:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:24,615 INFO L87 Difference]: Start difference. First operand 29199 states and 41578 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-04 05:27:26,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:27:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:27:52,295 INFO L93 Difference]: Finished difference Result 29199 states and 41578 transitions. [2021-11-04 05:27:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:27:52,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-04 05:27:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:27:52,336 INFO L225 Difference]: With dead ends: 29199 [2021-11-04 05:27:52,336 INFO L226 Difference]: Without dead ends: 29187 [2021-11-04 05:27:52,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:52,347 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1867 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25661.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.26ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26981.96ms IncrementalHoareTripleChecker+Time [2021-11-04 05:27:52,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1867 Valid, 0 Invalid, 3581 Unknown, 0 Unchecked, 19.26ms Time], IncrementalHoareTripleChecker [11 Valid, 3569 Invalid, 1 Unknown, 0 Unchecked, 26981.96ms Time] [2021-11-04 05:27:52,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29187 states. [2021-11-04 05:27:52,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29187 to 29187. [2021-11-04 05:27:53,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29187 states, 29122 states have (on average 1.424730444337614) internal successors, (41491), 29186 states have internal predecessors, (41491), 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) [2021-11-04 05:27:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29187 states to 29187 states and 41491 transitions. [2021-11-04 05:27:53,120 INFO L78 Accepts]: Start accepts. Automaton has 29187 states and 41491 transitions. Word has length 45 [2021-11-04 05:27:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:27:53,120 INFO L470 AbstractCegarLoop]: Abstraction has 29187 states and 41491 transitions. [2021-11-04 05:27:53,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2021-11-04 05:27:53,120 INFO L276 IsEmpty]: Start isEmpty. Operand 29187 states and 41491 transitions. [2021-11-04 05:27:53,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-04 05:27:53,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:27:53,121 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] [2021-11-04 05:27:53,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 05:27:53,121 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:27:53,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:27:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1952210908, now seen corresponding path program 1 times [2021-11-04 05:27:53,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:27:53,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874556507] [2021-11-04 05:27:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:27:53,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:27:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:27:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:27:53,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:27:53,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874556507] [2021-11-04 05:27:53,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874556507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:27:53,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:27:53,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:27:53,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219542877] [2021-11-04 05:27:53,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:27:53,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:27:53,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:27:53,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:27:53,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:27:53,531 INFO L87 Difference]: Start difference. First operand 29187 states and 41491 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-04 05:27:55,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:28:33,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:28:33,819 INFO L93 Difference]: Finished difference Result 63914 states and 90903 transitions. [2021-11-04 05:28:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:28:33,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-04 05:28:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:28:33,880 INFO L225 Difference]: With dead ends: 63914 [2021-11-04 05:28:33,880 INFO L226 Difference]: Without dead ends: 34807 [2021-11-04 05:28:33,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:33,916 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 836 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 5017 mSolverCounterSat, 74 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37335.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.12ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5017 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39418.25ms IncrementalHoareTripleChecker+Time [2021-11-04 05:28:33,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 0 Invalid, 5092 Unknown, 0 Unchecked, 29.12ms Time], IncrementalHoareTripleChecker [74 Valid, 5017 Invalid, 1 Unknown, 0 Unchecked, 39418.25ms Time] [2021-11-04 05:28:33,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34807 states. [2021-11-04 05:28:34,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34807 to 34469. [2021-11-04 05:28:34,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34469 states, 34414 states have (on average 1.412535595978381) internal successors, (48611), 34468 states have internal predecessors, (48611), 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) [2021-11-04 05:28:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34469 states to 34469 states and 48611 transitions. [2021-11-04 05:28:34,637 INFO L78 Accepts]: Start accepts. Automaton has 34469 states and 48611 transitions. Word has length 46 [2021-11-04 05:28:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:28:34,638 INFO L470 AbstractCegarLoop]: Abstraction has 34469 states and 48611 transitions. [2021-11-04 05:28:34,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-04 05:28:34,638 INFO L276 IsEmpty]: Start isEmpty. Operand 34469 states and 48611 transitions. [2021-11-04 05:28:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-04 05:28:34,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:28:34,639 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] [2021-11-04 05:28:34,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 05:28:34,639 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:28:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:28:34,640 INFO L85 PathProgramCache]: Analyzing trace with hash -388990825, now seen corresponding path program 1 times [2021-11-04 05:28:34,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:28:34,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204804451] [2021-11-04 05:28:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:28:34,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:28:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:28:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-04 05:28:35,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:28:35,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204804451] [2021-11-04 05:28:35,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204804451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:28:35,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:28:35,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:28:35,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035684599] [2021-11-04 05:28:35,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:28:35,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:28:35,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:28:35,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:28:35,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:35,043 INFO L87 Difference]: Start difference. First operand 34469 states and 48611 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-04 05:28:37,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:28:57,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:28:57,999 INFO L93 Difference]: Finished difference Result 34469 states and 48611 transitions. [2021-11-04 05:28:58,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:28:58,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-11-04 05:28:58,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:28:58,046 INFO L225 Difference]: With dead ends: 34469 [2021-11-04 05:28:58,047 INFO L226 Difference]: Without dead ends: 34462 [2021-11-04 05:28:58,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:58,060 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2617 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20740.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22235.48ms IncrementalHoareTripleChecker+Time [2021-11-04 05:28:58,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 0 Invalid, 2752 Unknown, 0 Unchecked, 15.75ms Time], IncrementalHoareTripleChecker [0 Valid, 2751 Invalid, 1 Unknown, 0 Unchecked, 22235.48ms Time] [2021-11-04 05:28:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34462 states. [2021-11-04 05:28:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34462 to 34459. [2021-11-04 05:28:58,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34459 states, 34405 states have (on average 1.4116552826624038) internal successors, (48568), 34458 states have internal predecessors, (48568), 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) [2021-11-04 05:28:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34459 states to 34459 states and 48568 transitions. [2021-11-04 05:28:58,760 INFO L78 Accepts]: Start accepts. Automaton has 34459 states and 48568 transitions. Word has length 47 [2021-11-04 05:28:58,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:28:58,761 INFO L470 AbstractCegarLoop]: Abstraction has 34459 states and 48568 transitions. [2021-11-04 05:28:58,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2021-11-04 05:28:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 34459 states and 48568 transitions. [2021-11-04 05:28:58,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-04 05:28:58,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:28:58,768 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:28:58,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-04 05:28:58,769 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:28:58,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:28:58,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1330849789, now seen corresponding path program 1 times [2021-11-04 05:28:58,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:28:58,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355796318] [2021-11-04 05:28:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:28:58,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:28:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:28:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 05:28:59,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:28:59,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355796318] [2021-11-04 05:28:59,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355796318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:28:59,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:28:59,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:28:59,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719127946] [2021-11-04 05:28:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:28:59,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:28:59,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:28:59,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:28:59,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:28:59,068 INFO L87 Difference]: Start difference. First operand 34459 states and 48568 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-04 05:29:01,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:29:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:29:31,487 INFO L93 Difference]: Finished difference Result 68786 states and 97009 transitions. [2021-11-04 05:29:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:29:31,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 77 [2021-11-04 05:29:31,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:29:31,543 INFO L225 Difference]: With dead ends: 68786 [2021-11-04 05:29:31,544 INFO L226 Difference]: Without dead ends: 34407 [2021-11-04 05:29:31,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:29:31,585 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2175 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 69 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29551.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.54ms SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31372.77ms IncrementalHoareTripleChecker+Time [2021-11-04 05:29:31,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2175 Valid, 0 Invalid, 4148 Unknown, 0 Unchecked, 22.54ms Time], IncrementalHoareTripleChecker [69 Valid, 4078 Invalid, 1 Unknown, 0 Unchecked, 31372.77ms Time] [2021-11-04 05:29:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34407 states. [2021-11-04 05:29:32,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34407 to 33816. [2021-11-04 05:29:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33816 states, 33791 states have (on average 1.3964665147524489) internal successors, (47188), 33815 states have internal predecessors, (47188), 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) [2021-11-04 05:29:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33816 states to 33816 states and 47188 transitions. [2021-11-04 05:29:32,393 INFO L78 Accepts]: Start accepts. Automaton has 33816 states and 47188 transitions. Word has length 77 [2021-11-04 05:29:32,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:29:32,393 INFO L470 AbstractCegarLoop]: Abstraction has 33816 states and 47188 transitions. [2021-11-04 05:29:32,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-04 05:29:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 33816 states and 47188 transitions. [2021-11-04 05:29:32,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 05:29:32,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:29:32,397 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:29:32,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-04 05:29:32,398 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:29:32,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:29:32,398 INFO L85 PathProgramCache]: Analyzing trace with hash -53115874, now seen corresponding path program 1 times [2021-11-04 05:29:32,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:29:32,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364020255] [2021-11-04 05:29:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:29:32,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:29:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:29:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 05:29:32,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:29:32,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364020255] [2021-11-04 05:29:32,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364020255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:29:32,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:29:32,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:29:32,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807862741] [2021-11-04 05:29:32,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:29:32,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:29:32,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:29:32,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:29:32,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:29:32,609 INFO L87 Difference]: Start difference. First operand 33816 states and 47188 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:29:34,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:30:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:30:06,849 INFO L93 Difference]: Finished difference Result 33816 states and 47188 transitions. [2021-11-04 05:30:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:30:06,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-04 05:30:06,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:30:06,901 INFO L225 Difference]: With dead ends: 33816 [2021-11-04 05:30:06,902 INFO L226 Difference]: Without dead ends: 33804 [2021-11-04 05:30:06,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:30:06,915 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 737 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 4502 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31616.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.34ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33459.89ms IncrementalHoareTripleChecker+Time [2021-11-04 05:30:06,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 0 Invalid, 4512 Unknown, 0 Unchecked, 24.34ms Time], IncrementalHoareTripleChecker [9 Valid, 4502 Invalid, 1 Unknown, 0 Unchecked, 33459.89ms Time] [2021-11-04 05:30:06,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33804 states. [2021-11-04 05:30:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33804 to 33804. [2021-11-04 05:30:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33804 states, 33785 states have (on average 1.392274678111588) internal successors, (47038), 33803 states have internal predecessors, (47038), 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) [2021-11-04 05:30:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33804 states to 33804 states and 47038 transitions. [2021-11-04 05:30:07,658 INFO L78 Accepts]: Start accepts. Automaton has 33804 states and 47038 transitions. Word has length 83 [2021-11-04 05:30:07,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:30:07,658 INFO L470 AbstractCegarLoop]: Abstraction has 33804 states and 47038 transitions. [2021-11-04 05:30:07,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:30:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 33804 states and 47038 transitions. [2021-11-04 05:30:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-04 05:30:07,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:30:07,675 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:30:07,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-04 05:30:07,675 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:30:07,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:30:07,675 INFO L85 PathProgramCache]: Analyzing trace with hash -116469262, now seen corresponding path program 1 times [2021-11-04 05:30:07,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:30:07,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459970625] [2021-11-04 05:30:07,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:30:07,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:30:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:30:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 05:30:08,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:30:08,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459970625] [2021-11-04 05:30:08,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459970625] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 05:30:08,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901959092] [2021-11-04 05:30:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:30:08,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 05:30:08,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 05:30:08,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 05:30:08,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 05:30:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:30:09,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 4319 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-04 05:30:09,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 05:30:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 05:30:10,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-04 05:30:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 05:30:10,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901959092] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-04 05:30:10,922 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-04 05:30:10,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-11-04 05:30:10,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376098538] [2021-11-04 05:30:10,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-04 05:30:10,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-04 05:30:10,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:30:10,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-04 05:30:10,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:30:10,923 INFO L87 Difference]: Start difference. First operand 33804 states and 47038 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 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) [2021-11-04 05:30:12,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:31:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:31:25,551 INFO L93 Difference]: Finished difference Result 67561 states and 94022 transitions. [2021-11-04 05:31:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-04 05:31:25,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 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 100 [2021-11-04 05:31:25,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:31:25,600 INFO L225 Difference]: With dead ends: 67561 [2021-11-04 05:31:25,600 INFO L226 Difference]: Without dead ends: 33807 [2021-11-04 05:31:25,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 300.64ms TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-11-04 05:31:25,646 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 7869 mSDsCounter, 0 mSdLazyCounter, 10502 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70132.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.80ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73421.01ms IncrementalHoareTripleChecker+Time [2021-11-04 05:31:25,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 10507 Unknown, 0 Unchecked, 68.80ms Time], IncrementalHoareTripleChecker [4 Valid, 10502 Invalid, 1 Unknown, 0 Unchecked, 73421.01ms Time] [2021-11-04 05:31:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33807 states. [2021-11-04 05:31:26,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33807 to 33807. [2021-11-04 05:31:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33807 states, 33788 states have (on average 1.3922398484669114) internal successors, (47041), 33806 states have internal predecessors, (47041), 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) [2021-11-04 05:31:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33807 states to 33807 states and 47041 transitions. [2021-11-04 05:31:26,396 INFO L78 Accepts]: Start accepts. Automaton has 33807 states and 47041 transitions. Word has length 100 [2021-11-04 05:31:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:31:26,397 INFO L470 AbstractCegarLoop]: Abstraction has 33807 states and 47041 transitions. [2021-11-04 05:31:26,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 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) [2021-11-04 05:31:26,397 INFO L276 IsEmpty]: Start isEmpty. Operand 33807 states and 47041 transitions. [2021-11-04 05:31:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-04 05:31:26,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:31:26,411 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:31:26,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-04 05:31:26,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-04 05:31:26,636 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:31:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:31:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1250761518, now seen corresponding path program 2 times [2021-11-04 05:31:26,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:31:26,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817635671] [2021-11-04 05:31:26,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:31:26,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:31:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:31:27,393 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-04 05:31:27,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:31:27,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817635671] [2021-11-04 05:31:27,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817635671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:31:27,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:31:27,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:31:27,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853859610] [2021-11-04 05:31:27,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:31:27,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:31:27,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:31:27,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:31:27,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:31:27,394 INFO L87 Difference]: Start difference. First operand 33807 states and 47041 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:31:29,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:32:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:32:59,488 INFO L93 Difference]: Finished difference Result 124509 states and 173474 transitions. [2021-11-04 05:32:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 05:32:59,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-04 05:32:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:32:59,689 INFO L225 Difference]: With dead ends: 124509 [2021-11-04 05:32:59,690 INFO L226 Difference]: Without dead ends: 90785 [2021-11-04 05:32:59,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 176.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 05:32:59,737 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6683 mSDsluCounter, 6781 mSDsCounter, 0 mSdLazyCounter, 11867 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85088.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6683 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 11870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 102.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89381.60ms IncrementalHoareTripleChecker+Time [2021-11-04 05:32:59,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6683 Valid, 0 Invalid, 11870 Unknown, 0 Unchecked, 102.51ms Time], IncrementalHoareTripleChecker [2 Valid, 11867 Invalid, 1 Unknown, 0 Unchecked, 89381.60ms Time] [2021-11-04 05:32:59,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90785 states. [2021-11-04 05:33:01,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90785 to 33839. [2021-11-04 05:33:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33839 states, 33820 states have (on average 1.3913956238911886) internal successors, (47057), 33838 states have internal predecessors, (47057), 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) [2021-11-04 05:33:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33839 states to 33839 states and 47057 transitions. [2021-11-04 05:33:01,084 INFO L78 Accepts]: Start accepts. Automaton has 33839 states and 47057 transitions. Word has length 103 [2021-11-04 05:33:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:33:01,084 INFO L470 AbstractCegarLoop]: Abstraction has 33839 states and 47057 transitions. [2021-11-04 05:33:01,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 05:33:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 33839 states and 47057 transitions. [2021-11-04 05:33:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-04 05:33:01,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:33:01,100 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:33:01,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-04 05:33:01,101 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:33:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:33:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash 960299480, now seen corresponding path program 1 times [2021-11-04 05:33:01,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:33:01,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394954265] [2021-11-04 05:33:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:33:01,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:33:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:33:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-04 05:33:01,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:33:01,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394954265] [2021-11-04 05:33:01,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394954265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:33:01,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:33:01,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 05:33:01,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234896303] [2021-11-04 05:33:01,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:33:01,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 05:33:01,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:33:01,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 05:33:01,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:33:01,629 INFO L87 Difference]: Start difference. First operand 33839 states and 47057 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-04 05:33:04,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 05:33:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 05:33:53,540 INFO L93 Difference]: Finished difference Result 94183 states and 131229 transitions. [2021-11-04 05:33:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 05:33:53,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 105 [2021-11-04 05:33:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 05:33:53,654 INFO L225 Difference]: With dead ends: 94183 [2021-11-04 05:33:53,654 INFO L226 Difference]: Without dead ends: 60427 [2021-11-04 05:33:53,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 05:33:53,699 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2401 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 6894 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47471.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.28ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6894 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49668.65ms IncrementalHoareTripleChecker+Time [2021-11-04 05:33:53,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2401 Valid, 0 Invalid, 6896 Unknown, 0 Unchecked, 39.28ms Time], IncrementalHoareTripleChecker [1 Valid, 6894 Invalid, 1 Unknown, 0 Unchecked, 49668.65ms Time] [2021-11-04 05:33:53,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60427 states. [2021-11-04 05:33:54,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60427 to 33871. [2021-11-04 05:33:55,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33871 states, 33852 states have (on average 1.39099610067352) internal successors, (47088), 33870 states have internal predecessors, (47088), 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) [2021-11-04 05:33:55,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33871 states to 33871 states and 47088 transitions. [2021-11-04 05:33:55,071 INFO L78 Accepts]: Start accepts. Automaton has 33871 states and 47088 transitions. Word has length 105 [2021-11-04 05:33:55,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 05:33:55,071 INFO L470 AbstractCegarLoop]: Abstraction has 33871 states and 47088 transitions. [2021-11-04 05:33:55,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-04 05:33:55,072 INFO L276 IsEmpty]: Start isEmpty. Operand 33871 states and 47088 transitions. [2021-11-04 05:33:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-04 05:33:55,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 05:33:55,089 INFO L514 BasicCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 05:33:55,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-04 05:33:55,089 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 68 more)] === [2021-11-04 05:33:55,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 05:33:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2075443744, now seen corresponding path program 1 times [2021-11-04 05:33:55,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 05:33:55,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421448606] [2021-11-04 05:33:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 05:33:55,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 05:33:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 05:33:55,816 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-04 05:33:55,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 05:33:55,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421448606] [2021-11-04 05:33:55,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421448606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 05:33:55,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 05:33:55,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-04 05:33:55,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756208712] [2021-11-04 05:33:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 05:33:55,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 05:33:55,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 05:33:55,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 05:33:55,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 05:33:55,817 INFO L87 Difference]: Start difference. First operand 33871 states and 47088 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-11-04 05:33:58,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15