./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.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 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 15:03:43,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 15:03:43,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 15:03:43,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 15:03:43,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 15:03:43,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 15:03:43,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 15:03:43,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 15:03:43,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 15:03:43,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 15:03:43,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 15:03:43,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 15:03:43,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 15:03:43,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 15:03:43,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 15:03:43,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 15:03:43,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 15:03:43,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 15:03:43,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 15:03:43,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 15:03:43,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 15:03:43,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 15:03:43,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 15:03:43,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 15:03:43,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 15:03:43,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 15:03:43,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 15:03:43,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 15:03:43,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 15:03:43,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 15:03:43,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 15:03:43,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 15:03:43,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 15:03:43,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 15:03:43,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 15:03:43,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 15:03:43,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 15:03:43,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 15:03:43,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 15:03:43,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 15:03:43,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 15:03:43,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 15:03:43,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 15:03:43,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 15:03:43,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 15:03:43,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 15:03:43,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 15:03:43,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 15:03:43,296 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 15:03:43,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 15:03:43,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 15:03:43,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 15:03:43,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 15:03:43,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 15:03:43,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 15:03:43,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 15:03:43,299 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 15:03:43,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 15:03:43,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 15:03:43,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 15:03:43,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 15:03:43,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:03:43,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 15:03:43,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 15:03:43,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 15:03:43,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 15:03:43,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 15:03:43,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 15:03:43,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 15:03:43,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 15:03:43,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 15:03:43,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2021-11-07 15:03:43,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 15:03:43,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 15:03:43,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 15:03:43,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 15:03:43,562 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 15:03:43,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-07 15:03:43,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9707adb41/a3b8f51f8ea84b6c9f8cc0d2f6901ff7/FLAG1479088f0 [2021-11-07 15:03:44,343 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 15:03:44,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-07 15:03:44,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9707adb41/a3b8f51f8ea84b6c9f8cc0d2f6901ff7/FLAG1479088f0 [2021-11-07 15:03:44,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9707adb41/a3b8f51f8ea84b6c9f8cc0d2f6901ff7 [2021-11-07 15:03:44,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 15:03:44,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 15:03:44,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 15:03:44,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 15:03:44,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 15:03:44,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:03:44" (1/1) ... [2021-11-07 15:03:44,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203479d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:44, skipping insertion in model container [2021-11-07 15:03:44,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:03:44" (1/1) ... [2021-11-07 15:03:44,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 15:03:45,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 15:03:46,414 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-11-07 15:03:46,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:03:46,584 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 15:03:46,916 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2021-11-07 15:03:46,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 15:03:47,001 INFO L208 MainTranslator]: Completed translation [2021-11-07 15:03:47,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47 WrapperNode [2021-11-07 15:03:47,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 15:03:47,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 15:03:47,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 15:03:47,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 15:03:47,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:47,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:47,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 15:03:47,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 15:03:47,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 15:03:47,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 15:03:47,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:47,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 15:03:48,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 15:03:48,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 15:03:48,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 15:03:48,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (1/1) ... [2021-11-07 15:03:48,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 15:03:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:03:48,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 15:03:48,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 15:03:48,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 15:03:48,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 15:03:48,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 15:03:48,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 15:03:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 15:03:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 15:04:44,536 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 15:04:44,537 INFO L299 CfgBuilder]: Removed 4216 assume(true) statements. [2021-11-07 15:04:44,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:04:44 BoogieIcfgContainer [2021-11-07 15:04:44,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 15:04:44,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 15:04:44,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 15:04:44,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 15:04:44,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:03:44" (1/3) ... [2021-11-07 15:04:44,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8d7e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:04:44, skipping insertion in model container [2021-11-07 15:04:44,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:03:47" (2/3) ... [2021-11-07 15:04:44,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8d7e84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:04:44, skipping insertion in model container [2021-11-07 15:04:44,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:04:44" (3/3) ... [2021-11-07 15:04:44,549 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-07 15:04:44,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 15:04:44,554 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 115 error locations. [2021-11-07 15:04:44,609 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 15:04:44,615 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 15:04:44,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 115 error locations. [2021-11-07 15:04:44,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 5031 states, 4915 states have (on average 1.442319430315361) internal successors, (7089), 5030 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:44,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 15:04:44,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:44,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:44,704 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash -2040343940, now seen corresponding path program 1 times [2021-11-07 15:04:44,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:44,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533130157] [2021-11-07 15:04:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:44,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:45,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:45,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533130157] [2021-11-07 15:04:45,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533130157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:45,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:45,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:04:45,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721445577] [2021-11-07 15:04:45,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:45,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 15:04:45,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:45,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 15:04:45,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:04:45,319 INFO L87 Difference]: Start difference. First operand has 5031 states, 4915 states have (on average 1.442319430315361) internal successors, (7089), 5030 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:45,473 INFO L93 Difference]: Finished difference Result 10058 states and 14173 transitions. [2021-11-07 15:04:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 15:04:45,476 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-07 15:04:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:45,511 INFO L225 Difference]: With dead ends: 10058 [2021-11-07 15:04:45,512 INFO L226 Difference]: Without dead ends: 5008 [2021-11-07 15:04:45,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 15:04:45,533 INFO L933 BasicCegarLoop]: 6819 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6819 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:45,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6819 Invalid, 0 Unknown, 0 Unchecked, 10.68ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:04:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2021-11-07 15:04:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5008. [2021-11-07 15:04:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 4893 states have (on average 1.3850398528510117) internal successors, (6777), 5007 states have internal predecessors, (6777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 6777 transitions. [2021-11-07 15:04:45,707 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 6777 transitions. Word has length 40 [2021-11-07 15:04:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:45,707 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 6777 transitions. [2021-11-07 15:04:45,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 6777 transitions. [2021-11-07 15:04:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 15:04:45,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:45,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:45,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 15:04:45,710 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:45,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:45,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1380812418, now seen corresponding path program 1 times [2021-11-07 15:04:45,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:45,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273168270] [2021-11-07 15:04:45,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:45,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:45,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:45,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:45,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273168270] [2021-11-07 15:04:45,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273168270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:45,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:45,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:04:45,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328885121] [2021-11-07 15:04:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:45,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:45,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:45,928 INFO L87 Difference]: Start difference. First operand 5008 states and 6777 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) [2021-11-07 15:04:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:46,224 INFO L93 Difference]: Finished difference Result 10045 states and 13592 transitions. [2021-11-07 15:04:46,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:46,225 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 [2021-11-07 15:04:46,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:46,245 INFO L225 Difference]: With dead ends: 10045 [2021-11-07 15:04:46,245 INFO L226 Difference]: Without dead ends: 5068 [2021-11-07 15:04:46,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:46,261 INFO L933 BasicCegarLoop]: 6792 mSDtfsCounter, 115 mSDsluCounter, 6703 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 13495 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.12ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 170.19ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:46,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 13495 Invalid, 30 Unknown, 0 Unchecked, 17.12ms Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 170.19ms Time] [2021-11-07 15:04:46,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2021-11-07 15:04:46,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 5050. [2021-11-07 15:04:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5050 states, 4935 states have (on average 1.3852077001013172) internal successors, (6836), 5049 states have internal predecessors, (6836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5050 states to 5050 states and 6836 transitions. [2021-11-07 15:04:46,372 INFO L78 Accepts]: Start accepts. Automaton has 5050 states and 6836 transitions. Word has length 40 [2021-11-07 15:04:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:46,373 INFO L470 AbstractCegarLoop]: Abstraction has 5050 states and 6836 transitions. [2021-11-07 15:04:46,373 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) [2021-11-07 15:04:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5050 states and 6836 transitions. [2021-11-07 15:04:46,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 15:04:46,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:46,377 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] [2021-11-07 15:04:46,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 15:04:46,380 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr110ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -725601531, now seen corresponding path program 1 times [2021-11-07 15:04:46,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:46,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779514427] [2021-11-07 15:04:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:46,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:46,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:46,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779514427] [2021-11-07 15:04:46,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779514427] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:46,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:46,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:04:46,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726309491] [2021-11-07 15:04:46,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:46,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:46,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:46,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:46,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:46,670 INFO L87 Difference]: Start difference. First operand 5050 states and 6836 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) [2021-11-07 15:04:48,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:04:49,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:49,128 INFO L93 Difference]: Finished difference Result 15018 states and 20354 transitions. [2021-11-07 15:04:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:49,129 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 [2021-11-07 15:04:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:49,166 INFO L225 Difference]: With dead ends: 15018 [2021-11-07 15:04:49,167 INFO L226 Difference]: Without dead ends: 9999 [2021-11-07 15:04:49,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:49,179 INFO L933 BasicCegarLoop]: 6774 mSDtfsCounter, 6698 mSDsluCounter, 6735 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2104.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6698 SdHoareTripleChecker+Valid, 13509 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.52ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2239.81ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:49,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6698 Valid, 13509 Invalid, 15 Unknown, 0 Unchecked, 23.52ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2239.81ms Time] [2021-11-07 15:04:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2021-11-07 15:04:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 9778. [2021-11-07 15:04:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9778 states, 9663 states have (on average 1.390872399875815) internal successors, (13440), 9777 states have internal predecessors, (13440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:49,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9778 states to 9778 states and 13440 transitions. [2021-11-07 15:04:49,443 INFO L78 Accepts]: Start accepts. Automaton has 9778 states and 13440 transitions. Word has length 46 [2021-11-07 15:04:49,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:49,443 INFO L470 AbstractCegarLoop]: Abstraction has 9778 states and 13440 transitions. [2021-11-07 15:04:49,444 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) [2021-11-07 15:04:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 9778 states and 13440 transitions. [2021-11-07 15:04:49,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 15:04:49,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:49,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:49,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 15:04:49,449 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr110ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:49,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:49,450 INFO L85 PathProgramCache]: Analyzing trace with hash -41623059, now seen corresponding path program 1 times [2021-11-07 15:04:49,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:49,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977051700] [2021-11-07 15:04:49,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:49,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:49,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:49,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977051700] [2021-11-07 15:04:49,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977051700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:49,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:49,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:04:49,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729972480] [2021-11-07 15:04:49,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:49,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:49,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:49,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:49,688 INFO L87 Difference]: Start difference. First operand 9778 states and 13440 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:49,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:49,966 INFO L93 Difference]: Finished difference Result 9778 states and 13440 transitions. [2021-11-07 15:04:49,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:49,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2021-11-07 15:04:49,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:50,011 INFO L225 Difference]: With dead ends: 9778 [2021-11-07 15:04:50,012 INFO L226 Difference]: Without dead ends: 9776 [2021-11-07 15:04:50,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:50,017 INFO L933 BasicCegarLoop]: 6774 mSDtfsCounter, 6719 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6719 SdHoareTripleChecker+Valid, 6774 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.93ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:50,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6719 Valid, 6774 Invalid, 1 Unknown, 0 Unchecked, 12.48ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 3.93ms Time] [2021-11-07 15:04:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9776 states. [2021-11-07 15:04:50,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9776 to 9776. [2021-11-07 15:04:50,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9776 states, 9662 states have (on average 1.3908093562409438) internal successors, (13438), 9775 states have internal predecessors, (13438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:50,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9776 states to 9776 states and 13438 transitions. [2021-11-07 15:04:50,256 INFO L78 Accepts]: Start accepts. Automaton has 9776 states and 13438 transitions. Word has length 58 [2021-11-07 15:04:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:50,260 INFO L470 AbstractCegarLoop]: Abstraction has 9776 states and 13438 transitions. [2021-11-07 15:04:50,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 9776 states and 13438 transitions. [2021-11-07 15:04:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 15:04:50,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:50,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:50,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 15:04:50,262 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr111ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:50,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:50,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1290291991, now seen corresponding path program 1 times [2021-11-07 15:04:50,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:50,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29051040] [2021-11-07 15:04:50,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:50,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:50,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:50,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:50,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29051040] [2021-11-07 15:04:50,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29051040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:50,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:50,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:04:50,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023898247] [2021-11-07 15:04:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:50,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:50,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:50,469 INFO L87 Difference]: Start difference. First operand 9776 states and 13438 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:50,604 INFO L93 Difference]: Finished difference Result 9776 states and 13438 transitions. [2021-11-07 15:04:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:50,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2021-11-07 15:04:50,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:50,626 INFO L225 Difference]: With dead ends: 9776 [2021-11-07 15:04:50,626 INFO L226 Difference]: Without dead ends: 9774 [2021-11-07 15:04:50,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:50,631 INFO L933 BasicCegarLoop]: 6772 mSDtfsCounter, 6716 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6716 SdHoareTripleChecker+Valid, 6772 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.24ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:50,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6716 Valid, 6772 Invalid, 1 Unknown, 0 Unchecked, 11.44ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 4.24ms Time] [2021-11-07 15:04:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2021-11-07 15:04:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9774. [2021-11-07 15:04:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9774 states, 9661 states have (on average 1.3907462995549116) internal successors, (13436), 9773 states have internal predecessors, (13436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9774 states to 9774 states and 13436 transitions. [2021-11-07 15:04:50,841 INFO L78 Accepts]: Start accepts. Automaton has 9774 states and 13436 transitions. Word has length 59 [2021-11-07 15:04:50,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:50,843 INFO L470 AbstractCegarLoop]: Abstraction has 9774 states and 13436 transitions. [2021-11-07 15:04:50,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 9774 states and 13436 transitions. [2021-11-07 15:04:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-07 15:04:50,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:50,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:50,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 15:04:50,848 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr112ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:50,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:50,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1344323209, now seen corresponding path program 1 times [2021-11-07 15:04:50,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:50,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857892188] [2021-11-07 15:04:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:50,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:51,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:51,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857892188] [2021-11-07 15:04:51,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857892188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:51,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:51,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:04:51,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214913877] [2021-11-07 15:04:51,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:51,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:51,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:51,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:51,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:51,069 INFO L87 Difference]: Start difference. First operand 9774 states and 13436 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:51,284 INFO L93 Difference]: Finished difference Result 9774 states and 13436 transitions. [2021-11-07 15:04:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2021-11-07 15:04:51,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:51,306 INFO L225 Difference]: With dead ends: 9774 [2021-11-07 15:04:51,306 INFO L226 Difference]: Without dead ends: 9764 [2021-11-07 15:04:51,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:51,311 INFO L933 BasicCegarLoop]: 6758 mSDtfsCounter, 132 mSDsluCounter, 6557 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 13315 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.18ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.95ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:51,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 13315 Invalid, 25 Unknown, 0 Unchecked, 13.18ms Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 80.95ms Time] [2021-11-07 15:04:51,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9764 states. [2021-11-07 15:04:51,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9764 to 9764. [2021-11-07 15:04:51,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9764 states, 9656 states have (on average 1.390016570008285) internal successors, (13422), 9763 states have internal predecessors, (13422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9764 states to 9764 states and 13422 transitions. [2021-11-07 15:04:51,508 INFO L78 Accepts]: Start accepts. Automaton has 9764 states and 13422 transitions. Word has length 60 [2021-11-07 15:04:51,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:51,508 INFO L470 AbstractCegarLoop]: Abstraction has 9764 states and 13422 transitions. [2021-11-07 15:04:51,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:51,509 INFO L276 IsEmpty]: Start isEmpty. Operand 9764 states and 13422 transitions. [2021-11-07 15:04:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 15:04:51,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:51,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:51,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 15:04:51,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:51,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1275676339, now seen corresponding path program 1 times [2021-11-07 15:04:51,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:51,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591028739] [2021-11-07 15:04:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:51,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:51,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:51,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591028739] [2021-11-07 15:04:51,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591028739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:51,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:51,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:04:51,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966620656] [2021-11-07 15:04:51,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:51,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:51,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:51,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:51,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:51,705 INFO L87 Difference]: Start difference. First operand 9764 states and 13422 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:53,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:53,314 INFO L93 Difference]: Finished difference Result 25387 states and 34986 transitions. [2021-11-07 15:04:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2021-11-07 15:04:53,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:53,352 INFO L225 Difference]: With dead ends: 25387 [2021-11-07 15:04:53,353 INFO L226 Difference]: Without dead ends: 15654 [2021-11-07 15:04:53,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:53,374 INFO L933 BasicCegarLoop]: 6730 mSDtfsCounter, 4192 mSDsluCounter, 6232 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1045.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4192 SdHoareTripleChecker+Valid, 12962 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.25ms SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1152.10ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:53,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4192 Valid, 12962 Invalid, 405 Unknown, 0 Unchecked, 18.25ms Time], IncrementalHoareTripleChecker [151 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1152.10ms Time] [2021-11-07 15:04:53,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15654 states. [2021-11-07 15:04:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15654 to 12221. [2021-11-07 15:04:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12221 states, 12113 states have (on average 1.3832246346900026) internal successors, (16755), 12220 states have internal predecessors, (16755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12221 states to 12221 states and 16755 transitions. [2021-11-07 15:04:53,725 INFO L78 Accepts]: Start accepts. Automaton has 12221 states and 16755 transitions. Word has length 61 [2021-11-07 15:04:53,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:53,725 INFO L470 AbstractCegarLoop]: Abstraction has 12221 states and 16755 transitions. [2021-11-07 15:04:53,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:53,726 INFO L276 IsEmpty]: Start isEmpty. Operand 12221 states and 16755 transitions. [2021-11-07 15:04:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 15:04:53,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:53,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:53,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 15:04:53,727 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr114ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:53,727 INFO L85 PathProgramCache]: Analyzing trace with hash 891283713, now seen corresponding path program 1 times [2021-11-07 15:04:53,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:53,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173300951] [2021-11-07 15:04:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:53,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:53,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:53,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173300951] [2021-11-07 15:04:53,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173300951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:53,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:53,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 15:04:53,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475099894] [2021-11-07 15:04:53,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:53,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:53,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:53,933 INFO L87 Difference]: Start difference. First operand 12221 states and 16755 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:54,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:54,098 INFO L93 Difference]: Finished difference Result 12221 states and 16755 transitions. [2021-11-07 15:04:54,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:54,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2021-11-07 15:04:54,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:54,124 INFO L225 Difference]: With dead ends: 12221 [2021-11-07 15:04:54,125 INFO L226 Difference]: Without dead ends: 12207 [2021-11-07 15:04:54,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:54,131 INFO L933 BasicCegarLoop]: 6761 mSDtfsCounter, 6701 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6701 SdHoareTripleChecker+Valid, 6761 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:54,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6701 Valid, 6761 Invalid, 0 Unknown, 0 Unchecked, 9.23ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 15:04:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12207 states. [2021-11-07 15:04:54,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12207 to 12207. [2021-11-07 15:04:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12207 states, 12100 states have (on average 1.3830578512396694) internal successors, (16735), 12206 states have internal predecessors, (16735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12207 states to 12207 states and 16735 transitions. [2021-11-07 15:04:54,379 INFO L78 Accepts]: Start accepts. Automaton has 12207 states and 16735 transitions. Word has length 62 [2021-11-07 15:04:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:54,380 INFO L470 AbstractCegarLoop]: Abstraction has 12207 states and 16735 transitions. [2021-11-07 15:04:54,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 12207 states and 16735 transitions. [2021-11-07 15:04:54,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 15:04:54,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:54,382 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] [2021-11-07 15:04:54,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 15:04:54,382 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:54,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -876422246, now seen corresponding path program 1 times [2021-11-07 15:04:54,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:54,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564840268] [2021-11-07 15:04:54,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:54,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:04:54,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:54,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564840268] [2021-11-07 15:04:54,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564840268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:54,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:54,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:04:54,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397476355] [2021-11-07 15:04:54,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:54,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:54,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:54,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:54,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:54,545 INFO L87 Difference]: Start difference. First operand 12207 states and 16735 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:56,607 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 [] [2021-11-07 15:04:56,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:56,915 INFO L93 Difference]: Finished difference Result 20195 states and 27621 transitions. [2021-11-07 15:04:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:56,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-07 15:04:56,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:56,932 INFO L225 Difference]: With dead ends: 20195 [2021-11-07 15:04:56,933 INFO L226 Difference]: Without dead ends: 8017 [2021-11-07 15:04:56,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:56,952 INFO L933 BasicCegarLoop]: 6764 mSDtfsCounter, 6 mSDsluCounter, 6754 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2072.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13518 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.90ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2224.86ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:56,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 13518 Invalid, 6 Unknown, 0 Unchecked, 7.90ms Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2224.86ms Time] [2021-11-07 15:04:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2021-11-07 15:04:57,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 8010. [2021-11-07 15:04:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8010 states, 7903 states have (on average 1.3808680248007086) internal successors, (10913), 8009 states have internal predecessors, (10913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8010 states to 8010 states and 10913 transitions. [2021-11-07 15:04:57,181 INFO L78 Accepts]: Start accepts. Automaton has 8010 states and 10913 transitions. Word has length 72 [2021-11-07 15:04:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:57,182 INFO L470 AbstractCegarLoop]: Abstraction has 8010 states and 10913 transitions. [2021-11-07 15:04:57,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:57,182 INFO L276 IsEmpty]: Start isEmpty. Operand 8010 states and 10913 transitions. [2021-11-07 15:04:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 15:04:57,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:57,183 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] [2021-11-07 15:04:57,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 15:04:57,184 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:57,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1524215360, now seen corresponding path program 1 times [2021-11-07 15:04:57,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:57,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599330615] [2021-11-07 15:04:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:57,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:04:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 15:04:57,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:04:57,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599330615] [2021-11-07 15:04:57,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599330615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:04:57,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:04:57,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:04:57,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712146100] [2021-11-07 15:04:57,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:04:57,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:04:57,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:04:57,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:04:57,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:57,362 INFO L87 Difference]: Start difference. First operand 8010 states and 10913 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:59,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:04:59,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:04:59,708 INFO L93 Difference]: Finished difference Result 8010 states and 10913 transitions. [2021-11-07 15:04:59,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:04:59,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 74 [2021-11-07 15:04:59,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:04:59,724 INFO L225 Difference]: With dead ends: 8010 [2021-11-07 15:04:59,724 INFO L226 Difference]: Without dead ends: 8002 [2021-11-07 15:04:59,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:04:59,728 INFO L933 BasicCegarLoop]: 6748 mSDtfsCounter, 6553 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2093.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6553 SdHoareTripleChecker+Valid, 6929 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.00ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2248.89ms IncrementalHoareTripleChecker+Time [2021-11-07 15:04:59,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6553 Valid, 6929 Invalid, 20 Unknown, 0 Unchecked, 7.00ms Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 1 Unknown, 0 Unchecked, 2248.89ms Time] [2021-11-07 15:04:59,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8002 states. [2021-11-07 15:04:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8002 to 8002. [2021-11-07 15:04:59,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8002 states, 7899 states have (on average 1.3800481073553614) internal successors, (10901), 8001 states have internal predecessors, (10901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8002 states to 8002 states and 10901 transitions. [2021-11-07 15:04:59,898 INFO L78 Accepts]: Start accepts. Automaton has 8002 states and 10901 transitions. Word has length 74 [2021-11-07 15:04:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:04:59,898 INFO L470 AbstractCegarLoop]: Abstraction has 8002 states and 10901 transitions. [2021-11-07 15:04:59,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:04:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 8002 states and 10901 transitions. [2021-11-07 15:04:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 15:04:59,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:04:59,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:04:59,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 15:04:59,901 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:04:59,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:04:59,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2115724415, now seen corresponding path program 1 times [2021-11-07 15:04:59,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:04:59,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928538351] [2021-11-07 15:04:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:04:59,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:04:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 15:05:00,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:00,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928538351] [2021-11-07 15:05:00,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928538351] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:00,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:00,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 15:05:00,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905519722] [2021-11-07 15:05:00,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:00,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 15:05:00,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 15:05:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 15:05:00,243 INFO L87 Difference]: Start difference. First operand 8002 states and 10901 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:02,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:04,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:05,501 INFO L93 Difference]: Finished difference Result 16219 states and 22116 transitions. [2021-11-07 15:05:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 15:05:05,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 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 109 [2021-11-07 15:05:05,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:05,517 INFO L225 Difference]: With dead ends: 16219 [2021-11-07 15:05:05,517 INFO L226 Difference]: Without dead ends: 8277 [2021-11-07 15:05:05,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 268.20ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:05:05,533 INFO L933 BasicCegarLoop]: 6826 mSDtfsCounter, 7128 mSDsluCounter, 13407 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4483.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7128 SdHoareTripleChecker+Valid, 20233 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.81ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4813.02ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:05,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7128 Valid, 20233 Invalid, 165 Unknown, 0 Unchecked, 30.81ms Time], IncrementalHoareTripleChecker [56 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 4813.02ms Time] [2021-11-07 15:05:05,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2021-11-07 15:05:05,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8178. [2021-11-07 15:05:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8178 states, 8075 states have (on average 1.3821671826625388) internal successors, (11161), 8177 states have internal predecessors, (11161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8178 states to 8178 states and 11161 transitions. [2021-11-07 15:05:05,736 INFO L78 Accepts]: Start accepts. Automaton has 8178 states and 11161 transitions. Word has length 109 [2021-11-07 15:05:05,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:05,737 INFO L470 AbstractCegarLoop]: Abstraction has 8178 states and 11161 transitions. [2021-11-07 15:05:05,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 8178 states and 11161 transitions. [2021-11-07 15:05:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 15:05:05,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:05,740 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:05,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 15:05:05,740 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1696076644, now seen corresponding path program 1 times [2021-11-07 15:05:05,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:05,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216258837] [2021-11-07 15:05:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:05,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:05,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:05,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216258837] [2021-11-07 15:05:05,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216258837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:05,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:05,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:05,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407570470] [2021-11-07 15:05:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:05,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:05,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:05,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:05,935 INFO L87 Difference]: Start difference. First operand 8178 states and 11161 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:06,245 INFO L93 Difference]: Finished difference Result 16300 states and 22251 transitions. [2021-11-07 15:05:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:06,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 122 [2021-11-07 15:05:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:06,258 INFO L225 Difference]: With dead ends: 16300 [2021-11-07 15:05:06,258 INFO L226 Difference]: Without dead ends: 8182 [2021-11-07 15:05:06,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.96ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:06,271 INFO L933 BasicCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 6740 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13490 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.25ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.73ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:06,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13490 Invalid, 14 Unknown, 0 Unchecked, 10.25ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 55.73ms Time] [2021-11-07 15:05:06,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2021-11-07 15:05:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 8182. [2021-11-07 15:05:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8182 states, 8079 states have (on average 1.381977967570244) internal successors, (11165), 8181 states have internal predecessors, (11165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:06,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8182 states to 8182 states and 11165 transitions. [2021-11-07 15:05:06,456 INFO L78 Accepts]: Start accepts. Automaton has 8182 states and 11165 transitions. Word has length 122 [2021-11-07 15:05:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:06,457 INFO L470 AbstractCegarLoop]: Abstraction has 8182 states and 11165 transitions. [2021-11-07 15:05:06,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 8182 states and 11165 transitions. [2021-11-07 15:05:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 15:05:06,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:06,462 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:06,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 15:05:06,462 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:06,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1673444390, now seen corresponding path program 1 times [2021-11-07 15:05:06,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:06,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573649414] [2021-11-07 15:05:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:06,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 15:05:06,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:06,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573649414] [2021-11-07 15:05:06,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573649414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:06,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:06,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:06,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880466716] [2021-11-07 15:05:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:06,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:06,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:06,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:06,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:06,946 INFO L87 Difference]: Start difference. First operand 8182 states and 11165 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:09,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:09,560 INFO L93 Difference]: Finished difference Result 16297 states and 22241 transitions. [2021-11-07 15:05:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:05:09,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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 122 [2021-11-07 15:05:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:09,574 INFO L225 Difference]: With dead ends: 16297 [2021-11-07 15:05:09,575 INFO L226 Difference]: Without dead ends: 8162 [2021-11-07 15:05:09,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 144.85ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:05:09,594 INFO L933 BasicCegarLoop]: 6753 mSDtfsCounter, 24 mSDsluCounter, 20237 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2119.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26990 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.87ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2295.29ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:09,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 26990 Invalid, 19 Unknown, 0 Unchecked, 17.87ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2295.29ms Time] [2021-11-07 15:05:09,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2021-11-07 15:05:09,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 8151. [2021-11-07 15:05:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8151 states, 8048 states have (on average 1.382579522862823) internal successors, (11127), 8150 states have internal predecessors, (11127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8151 states to 8151 states and 11127 transitions. [2021-11-07 15:05:09,794 INFO L78 Accepts]: Start accepts. Automaton has 8151 states and 11127 transitions. Word has length 122 [2021-11-07 15:05:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:09,794 INFO L470 AbstractCegarLoop]: Abstraction has 8151 states and 11127 transitions. [2021-11-07 15:05:09,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 8151 states and 11127 transitions. [2021-11-07 15:05:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 15:05:09,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:09,797 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:09,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 15:05:09,797 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:09,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:09,798 INFO L85 PathProgramCache]: Analyzing trace with hash 436760356, now seen corresponding path program 1 times [2021-11-07 15:05:09,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:09,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876017722] [2021-11-07 15:05:09,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:09,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:10,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:10,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876017722] [2021-11-07 15:05:10,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876017722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:10,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:10,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:10,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368167552] [2021-11-07 15:05:10,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:10,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:10,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:10,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:10,208 INFO L87 Difference]: Start difference. First operand 8151 states and 11127 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:11,171 INFO L93 Difference]: Finished difference Result 24022 states and 32782 transitions. [2021-11-07 15:05:11,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 15:05:11,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 126 [2021-11-07 15:05:11,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:11,199 INFO L225 Difference]: With dead ends: 24022 [2021-11-07 15:05:11,199 INFO L226 Difference]: Without dead ends: 15931 [2021-11-07 15:05:11,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 178.66ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 15:05:11,212 INFO L933 BasicCegarLoop]: 9197 mSDtfsCounter, 8756 mSDsluCounter, 24621 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 346.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8756 SdHoareTripleChecker+Valid, 33818 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.24ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 370.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:11,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8756 Valid, 33818 Invalid, 100 Unknown, 0 Unchecked, 27.24ms Time], IncrementalHoareTripleChecker [14 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 370.00ms Time] [2021-11-07 15:05:11,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15931 states. [2021-11-07 15:05:11,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15931 to 8163. [2021-11-07 15:05:11,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8060 states have (on average 1.3820099255583127) internal successors, (11139), 8162 states have internal predecessors, (11139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 11139 transitions. [2021-11-07 15:05:11,481 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 11139 transitions. Word has length 126 [2021-11-07 15:05:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:11,482 INFO L470 AbstractCegarLoop]: Abstraction has 8163 states and 11139 transitions. [2021-11-07 15:05:11,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 11139 transitions. [2021-11-07 15:05:11,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 15:05:11,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:11,484 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:11,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 15:05:11,485 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:11,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash 694925794, now seen corresponding path program 1 times [2021-11-07 15:05:11,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:11,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90846938] [2021-11-07 15:05:11,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:11,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:11,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:11,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90846938] [2021-11-07 15:05:11,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90846938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:11,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:11,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:11,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251700577] [2021-11-07 15:05:11,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:11,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:11,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:11,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:11,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:11,743 INFO L87 Difference]: Start difference. First operand 8163 states and 11139 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:12,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:12,524 INFO L93 Difference]: Finished difference Result 29226 states and 39862 transitions. [2021-11-07 15:05:12,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 15:05:12,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 126 [2021-11-07 15:05:12,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:12,553 INFO L225 Difference]: With dead ends: 29226 [2021-11-07 15:05:12,553 INFO L226 Difference]: Without dead ends: 21123 [2021-11-07 15:05:12,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 133.52ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:05:12,567 INFO L933 BasicCegarLoop]: 12013 mSDtfsCounter, 22948 mSDsluCounter, 28837 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22948 SdHoareTripleChecker+Valid, 40850 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.71ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 235.08ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:12,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22948 Valid, 40850 Invalid, 80 Unknown, 0 Unchecked, 30.71ms Time], IncrementalHoareTripleChecker [16 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 235.08ms Time] [2021-11-07 15:05:12,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21123 states. [2021-11-07 15:05:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21123 to 8163. [2021-11-07 15:05:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8163 states, 8060 states have (on average 1.38151364764268) internal successors, (11135), 8162 states have internal predecessors, (11135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:12,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 11135 transitions. [2021-11-07 15:05:12,960 INFO L78 Accepts]: Start accepts. Automaton has 8163 states and 11135 transitions. Word has length 126 [2021-11-07 15:05:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:12,961 INFO L470 AbstractCegarLoop]: Abstraction has 8163 states and 11135 transitions. [2021-11-07 15:05:12,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 8163 states and 11135 transitions. [2021-11-07 15:05:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 15:05:12,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:12,964 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:12,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 15:05:12,964 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:12,965 INFO L85 PathProgramCache]: Analyzing trace with hash -584937884, now seen corresponding path program 1 times [2021-11-07 15:05:12,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:12,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015425903] [2021-11-07 15:05:12,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:12,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:13,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:13,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015425903] [2021-11-07 15:05:13,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015425903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:13,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:13,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:13,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539474736] [2021-11-07 15:05:13,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:13,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:13,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:13,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:13,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:13,152 INFO L87 Difference]: Start difference. First operand 8163 states and 11135 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:15,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:16,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:16,481 INFO L93 Difference]: Finished difference Result 16158 states and 22137 transitions. [2021-11-07 15:05:16,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:16,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 126 [2021-11-07 15:05:16,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:16,490 INFO L225 Difference]: With dead ends: 16158 [2021-11-07 15:05:16,490 INFO L226 Difference]: Without dead ends: 8055 [2021-11-07 15:05:16,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:16,498 INFO L933 BasicCegarLoop]: 8288 mSDtfsCounter, 6248 mSDsluCounter, 4164 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 135 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2813.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6248 SdHoareTripleChecker+Valid, 12452 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.39ms SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3072.18ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:16,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6248 Valid, 12452 Invalid, 354 Unknown, 0 Unchecked, 12.39ms Time], IncrementalHoareTripleChecker [135 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 3072.18ms Time] [2021-11-07 15:05:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8055 states. [2021-11-07 15:05:16,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8055 to 8055. [2021-11-07 15:05:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 8006 states have (on average 1.3713464901324006) internal successors, (10979), 8054 states have internal predecessors, (10979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:16,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 10979 transitions. [2021-11-07 15:05:16,709 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 10979 transitions. Word has length 126 [2021-11-07 15:05:16,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:16,709 INFO L470 AbstractCegarLoop]: Abstraction has 8055 states and 10979 transitions. [2021-11-07 15:05:16,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 10979 transitions. [2021-11-07 15:05:16,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 15:05:16,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:16,712 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:16,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 15:05:16,713 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr108ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:16,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:16,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1642509756, now seen corresponding path program 1 times [2021-11-07 15:05:16,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:16,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037542765] [2021-11-07 15:05:16,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:16,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:17,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:17,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037542765] [2021-11-07 15:05:17,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037542765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:17,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:17,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:17,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108847919] [2021-11-07 15:05:17,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:17,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:17,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:17,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:17,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:17,075 INFO L87 Difference]: Start difference. First operand 8055 states and 10979 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:18,058 INFO L93 Difference]: Finished difference Result 21297 states and 28973 transitions. [2021-11-07 15:05:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:05:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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 126 [2021-11-07 15:05:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:18,082 INFO L225 Difference]: With dead ends: 21297 [2021-11-07 15:05:18,082 INFO L226 Difference]: Without dead ends: 13302 [2021-11-07 15:05:18,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 138.54ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:05:18,097 INFO L933 BasicCegarLoop]: 10701 mSDtfsCounter, 17730 mSDsluCounter, 21433 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 278.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17730 SdHoareTripleChecker+Valid, 32134 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.68ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 297.36ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:18,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17730 Valid, 32134 Invalid, 80 Unknown, 0 Unchecked, 32.68ms Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 297.36ms Time] [2021-11-07 15:05:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13302 states. [2021-11-07 15:05:18,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13302 to 5725. [2021-11-07 15:05:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 5682 states have (on average 1.3665962689193947) internal successors, (7765), 5724 states have internal predecessors, (7765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 7765 transitions. [2021-11-07 15:05:18,320 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 7765 transitions. Word has length 126 [2021-11-07 15:05:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:18,320 INFO L470 AbstractCegarLoop]: Abstraction has 5725 states and 7765 transitions. [2021-11-07 15:05:18,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:18,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 7765 transitions. [2021-11-07 15:05:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 15:05:18,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:18,323 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:18,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 15:05:18,323 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:18,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:18,323 INFO L85 PathProgramCache]: Analyzing trace with hash -56083639, now seen corresponding path program 1 times [2021-11-07 15:05:18,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:18,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094825358] [2021-11-07 15:05:18,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:18,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 15:05:18,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:18,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094825358] [2021-11-07 15:05:18,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094825358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:18,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:18,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:18,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045467397] [2021-11-07 15:05:18,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:18,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:18,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:18,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:18,503 INFO L87 Difference]: Start difference. First operand 5725 states and 7765 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:18,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:18,770 INFO L93 Difference]: Finished difference Result 11392 states and 15455 transitions. [2021-11-07 15:05:18,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:18,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 137 [2021-11-07 15:05:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:18,779 INFO L225 Difference]: With dead ends: 11392 [2021-11-07 15:05:18,779 INFO L226 Difference]: Without dead ends: 5727 [2021-11-07 15:05:18,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:18,787 INFO L933 BasicCegarLoop]: 5389 mSDtfsCounter, 0 mSDsluCounter, 5384 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10773 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.48ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:18,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10773 Invalid, 6 Unknown, 0 Unchecked, 7.08ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 29.48ms Time] [2021-11-07 15:05:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2021-11-07 15:05:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5727. [2021-11-07 15:05:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5727 states, 5684 states have (on average 1.3664672765657988) internal successors, (7767), 5726 states have internal predecessors, (7767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5727 states to 5727 states and 7767 transitions. [2021-11-07 15:05:18,950 INFO L78 Accepts]: Start accepts. Automaton has 5727 states and 7767 transitions. Word has length 137 [2021-11-07 15:05:18,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:18,950 INFO L470 AbstractCegarLoop]: Abstraction has 5727 states and 7767 transitions. [2021-11-07 15:05:18,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5727 states and 7767 transitions. [2021-11-07 15:05:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 15:05:18,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:18,953 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:18,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 15:05:18,953 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:18,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:18,954 INFO L85 PathProgramCache]: Analyzing trace with hash 162771079, now seen corresponding path program 1 times [2021-11-07 15:05:18,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:18,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300201263] [2021-11-07 15:05:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:18,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 15:05:19,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:19,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300201263] [2021-11-07 15:05:19,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300201263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:19,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:19,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:19,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986067019] [2021-11-07 15:05:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:19,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:19,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:19,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:19,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:19,230 INFO L87 Difference]: Start difference. First operand 5727 states and 7767 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:19,770 INFO L93 Difference]: Finished difference Result 13632 states and 18501 transitions. [2021-11-07 15:05:19,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:19,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 137 [2021-11-07 15:05:19,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:19,789 INFO L225 Difference]: With dead ends: 13632 [2021-11-07 15:05:19,790 INFO L226 Difference]: Without dead ends: 7965 [2021-11-07 15:05:19,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:19,800 INFO L933 BasicCegarLoop]: 7360 mSDtfsCounter, 5317 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 194.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 9394 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.75ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 209.95ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:19,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5317 Valid, 9394 Invalid, 78 Unknown, 0 Unchecked, 10.75ms Time], IncrementalHoareTripleChecker [32 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 209.95ms Time] [2021-11-07 15:05:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7965 states. [2021-11-07 15:05:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7965 to 5765. [2021-11-07 15:05:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5765 states, 5722 states have (on average 1.3636840265641383) internal successors, (7803), 5764 states have internal predecessors, (7803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 7803 transitions. [2021-11-07 15:05:20,070 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 7803 transitions. Word has length 137 [2021-11-07 15:05:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:20,071 INFO L470 AbstractCegarLoop]: Abstraction has 5765 states and 7803 transitions. [2021-11-07 15:05:20,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:20,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 7803 transitions. [2021-11-07 15:05:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 15:05:20,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:20,074 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:20,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 15:05:20,074 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash 803532183, now seen corresponding path program 1 times [2021-11-07 15:05:20,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:20,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808792341] [2021-11-07 15:05:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:20,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 15:05:20,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:20,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808792341] [2021-11-07 15:05:20,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808792341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:20,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:20,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:20,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531813439] [2021-11-07 15:05:20,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:20,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:20,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:20,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:20,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:20,483 INFO L87 Difference]: Start difference. First operand 5765 states and 7803 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:21,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:21,559 INFO L93 Difference]: Finished difference Result 20180 states and 27264 transitions. [2021-11-07 15:05:21,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 15:05:21,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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 137 [2021-11-07 15:05:21,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:21,578 INFO L225 Difference]: With dead ends: 20180 [2021-11-07 15:05:21,578 INFO L226 Difference]: Without dead ends: 14475 [2021-11-07 15:05:21,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 172.64ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 15:05:21,586 INFO L933 BasicCegarLoop]: 10892 mSDtfsCounter, 9323 mSDsluCounter, 24947 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 299.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9323 SdHoareTripleChecker+Valid, 35839 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.02ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 319.12ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:21,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9323 Valid, 35839 Invalid, 83 Unknown, 0 Unchecked, 27.02ms Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 319.12ms Time] [2021-11-07 15:05:21,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14475 states. [2021-11-07 15:05:21,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14475 to 5558. [2021-11-07 15:05:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5558 states, 5518 states have (on average 1.3617252627763683) internal successors, (7514), 5557 states have internal predecessors, (7514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 7514 transitions. [2021-11-07 15:05:21,800 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 7514 transitions. Word has length 137 [2021-11-07 15:05:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:21,800 INFO L470 AbstractCegarLoop]: Abstraction has 5558 states and 7514 transitions. [2021-11-07 15:05:21,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 7514 transitions. [2021-11-07 15:05:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-07 15:05:21,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:21,803 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:21,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 15:05:21,804 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash -632987475, now seen corresponding path program 1 times [2021-11-07 15:05:21,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:21,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838253654] [2021-11-07 15:05:21,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:21,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 15:05:21,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:21,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838253654] [2021-11-07 15:05:21,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838253654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:21,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:21,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:21,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612575744] [2021-11-07 15:05:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:21,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:21,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:21,987 INFO L87 Difference]: Start difference. First operand 5558 states and 7514 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:22,281 INFO L93 Difference]: Finished difference Result 11058 states and 14953 transitions. [2021-11-07 15:05:22,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:22,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 138 [2021-11-07 15:05:22,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:22,291 INFO L225 Difference]: With dead ends: 11058 [2021-11-07 15:05:22,292 INFO L226 Difference]: Without dead ends: 5560 [2021-11-07 15:05:22,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:22,301 INFO L933 BasicCegarLoop]: 5354 mSDtfsCounter, 0 mSDsluCounter, 5349 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10703 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.66ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:22,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10703 Invalid, 6 Unknown, 0 Unchecked, 7.16ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 30.66ms Time] [2021-11-07 15:05:22,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5560 states. [2021-11-07 15:05:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 5560. [2021-11-07 15:05:22,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5560 states, 5520 states have (on average 1.3615942028985508) internal successors, (7516), 5559 states have internal predecessors, (7516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 7516 transitions. [2021-11-07 15:05:22,539 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 7516 transitions. Word has length 138 [2021-11-07 15:05:22,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:22,540 INFO L470 AbstractCegarLoop]: Abstraction has 5560 states and 7516 transitions. [2021-11-07 15:05:22,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 7516 transitions. [2021-11-07 15:05:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-07 15:05:22,543 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:22,543 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:22,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-07 15:05:22,543 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:22,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash -414132757, now seen corresponding path program 1 times [2021-11-07 15:05:22,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:22,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490947743] [2021-11-07 15:05:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:22,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:22,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 15:05:22,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:22,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490947743] [2021-11-07 15:05:22,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490947743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:22,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:22,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:22,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412572724] [2021-11-07 15:05:22,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:22,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:22,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:22,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:22,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:22,946 INFO L87 Difference]: Start difference. First operand 5560 states and 7516 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:23,907 INFO L93 Difference]: Finished difference Result 18742 states and 25333 transitions. [2021-11-07 15:05:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 15:05:23,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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 138 [2021-11-07 15:05:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:23,933 INFO L225 Difference]: With dead ends: 18742 [2021-11-07 15:05:23,933 INFO L226 Difference]: Without dead ends: 13242 [2021-11-07 15:05:23,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 168.17ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 15:05:23,947 INFO L933 BasicCegarLoop]: 10615 mSDtfsCounter, 7607 mSDsluCounter, 25278 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 294.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7607 SdHoareTripleChecker+Valid, 35893 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.23ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 312.90ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:23,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7607 Valid, 35893 Invalid, 83 Unknown, 0 Unchecked, 23.23ms Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 312.90ms Time] [2021-11-07 15:05:23,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13242 states. [2021-11-07 15:05:24,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13242 to 5076. [2021-11-07 15:05:24,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5037 states have (on average 1.361127655350407) internal successors, (6856), 5075 states have internal predecessors, (6856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6856 transitions. [2021-11-07 15:05:24,209 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6856 transitions. Word has length 138 [2021-11-07 15:05:24,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:24,209 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6856 transitions. [2021-11-07 15:05:24,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6856 transitions. [2021-11-07 15:05:24,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 15:05:24,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:24,211 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:24,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 15:05:24,212 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:24,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1966385123, now seen corresponding path program 1 times [2021-11-07 15:05:24,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:24,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047141009] [2021-11-07 15:05:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:24,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:24,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:24,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047141009] [2021-11-07 15:05:24,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047141009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:24,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:24,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:24,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113105352] [2021-11-07 15:05:24,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:24,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:24,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:24,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:24,456 INFO L87 Difference]: Start difference. First operand 5076 states and 6856 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:25,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:25,370 INFO L93 Difference]: Finished difference Result 15843 states and 21431 transitions. [2021-11-07 15:05:25,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:05:25,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-07 15:05:25,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:25,396 INFO L225 Difference]: With dead ends: 15843 [2021-11-07 15:05:25,396 INFO L226 Difference]: Without dead ends: 14904 [2021-11-07 15:05:25,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 138.42ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:05:25,409 INFO L933 BasicCegarLoop]: 6091 mSDtfsCounter, 24693 mSDsluCounter, 20081 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 225.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24693 SdHoareTripleChecker+Valid, 26172 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.61ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 239.50ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:25,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24693 Valid, 26172 Invalid, 76 Unknown, 0 Unchecked, 25.61ms Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 239.50ms Time] [2021-11-07 15:05:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14904 states. [2021-11-07 15:05:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14904 to 5076. [2021-11-07 15:05:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5037 states have (on average 1.360333531864205) internal successors, (6852), 5075 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:25,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6852 transitions. [2021-11-07 15:05:25,715 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6852 transitions. Word has length 142 [2021-11-07 15:05:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:25,715 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6852 transitions. [2021-11-07 15:05:25,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6852 transitions. [2021-11-07 15:05:25,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 15:05:25,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:25,718 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:25,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 15:05:25,718 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:25,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:25,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1819109083, now seen corresponding path program 1 times [2021-11-07 15:05:25,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:25,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966595876] [2021-11-07 15:05:25,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:25,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:25,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:25,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966595876] [2021-11-07 15:05:25,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966595876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:25,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:25,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:25,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878427466] [2021-11-07 15:05:25,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:25,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:25,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:25,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:25,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:25,977 INFO L87 Difference]: Start difference. First operand 5076 states and 6852 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:26,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:26,732 INFO L93 Difference]: Finished difference Result 7762 states and 10456 transitions. [2021-11-07 15:05:26,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:05:26,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-07 15:05:26,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:26,739 INFO L225 Difference]: With dead ends: 7762 [2021-11-07 15:05:26,739 INFO L226 Difference]: Without dead ends: 6835 [2021-11-07 15:05:26,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 135.49ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:05:26,741 INFO L933 BasicCegarLoop]: 6056 mSDtfsCounter, 12709 mSDsluCounter, 5406 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 279.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12709 SdHoareTripleChecker+Valid, 11462 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.29ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.91ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:26,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12709 Valid, 11462 Invalid, 78 Unknown, 0 Unchecked, 14.29ms Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 299.91ms Time] [2021-11-07 15:05:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6835 states. [2021-11-07 15:05:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6835 to 5076. [2021-11-07 15:05:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5037 states have (on average 1.3599364701211039) internal successors, (6850), 5075 states have internal predecessors, (6850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:26,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 6850 transitions. [2021-11-07 15:05:26,969 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 6850 transitions. Word has length 142 [2021-11-07 15:05:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:26,970 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 6850 transitions. [2021-11-07 15:05:26,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 6850 transitions. [2021-11-07 15:05:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-07 15:05:26,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:26,973 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:26,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 15:05:26,973 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:26,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:26,974 INFO L85 PathProgramCache]: Analyzing trace with hash 532464507, now seen corresponding path program 1 times [2021-11-07 15:05:26,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:26,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917365294] [2021-11-07 15:05:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:26,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 15:05:27,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:27,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917365294] [2021-11-07 15:05:27,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917365294] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 15:05:27,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808979343] [2021-11-07 15:05:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:27,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 15:05:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:05:27,217 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) [2021-11-07 15:05:27,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 15:05:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:28,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 2742 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 15:05:28,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 15:05:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 15:05:29,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 15:05:29,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808979343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:29,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 15:05:29,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-07 15:05:29,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408476307] [2021-11-07 15:05:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:29,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 15:05:29,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 15:05:29,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:29,173 INFO L87 Difference]: Start difference. First operand 5076 states and 6850 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:31,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:32,135 INFO L93 Difference]: Finished difference Result 15165 states and 20470 transitions. [2021-11-07 15:05:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 15:05:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-07 15:05:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:32,154 INFO L225 Difference]: With dead ends: 15165 [2021-11-07 15:05:32,154 INFO L226 Difference]: Without dead ends: 15152 [2021-11-07 15:05:32,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:32,158 INFO L933 BasicCegarLoop]: 5163 mSDtfsCounter, 10001 mSDsluCounter, 14944 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2121.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10001 SdHoareTripleChecker+Valid, 20107 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.75ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2300.31ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:32,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10001 Valid, 20107 Invalid, 32 Unknown, 0 Unchecked, 13.75ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2300.31ms Time] [2021-11-07 15:05:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15152 states. [2021-11-07 15:05:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15152 to 13031. [2021-11-07 15:05:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13031 states, 12992 states have (on average 1.3643011083743843) internal successors, (17725), 13030 states have internal predecessors, (17725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13031 states to 13031 states and 17725 transitions. [2021-11-07 15:05:32,811 INFO L78 Accepts]: Start accepts. Automaton has 13031 states and 17725 transitions. Word has length 142 [2021-11-07 15:05:32,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:32,811 INFO L470 AbstractCegarLoop]: Abstraction has 13031 states and 17725 transitions. [2021-11-07 15:05:32,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 13031 states and 17725 transitions. [2021-11-07 15:05:32,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-07 15:05:32,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:32,819 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:32,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 15:05:33,027 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,SelfDestructingSolverStorable24 [2021-11-07 15:05:33,027 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:33,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:33,028 INFO L85 PathProgramCache]: Analyzing trace with hash -783328596, now seen corresponding path program 1 times [2021-11-07 15:05:33,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:33,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836313060] [2021-11-07 15:05:33,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:33,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:33,170 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 15:05:33,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:33,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836313060] [2021-11-07 15:05:33,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836313060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:33,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:33,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:33,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74637853] [2021-11-07 15:05:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:33,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:33,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:33,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:33,172 INFO L87 Difference]: Start difference. First operand 13031 states and 17725 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:34,436 INFO L93 Difference]: Finished difference Result 38492 states and 52369 transitions. [2021-11-07 15:05:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 149 [2021-11-07 15:05:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:34,470 INFO L225 Difference]: With dead ends: 38492 [2021-11-07 15:05:34,470 INFO L226 Difference]: Without dead ends: 25492 [2021-11-07 15:05:34,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:34,486 INFO L933 BasicCegarLoop]: 10001 mSDtfsCounter, 5021 mSDsluCounter, 5008 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 15009 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.96ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.70ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:34,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5021 Valid, 15009 Invalid, 11 Unknown, 0 Unchecked, 9.96ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 103.70ms Time] [2021-11-07 15:05:34,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25492 states. [2021-11-07 15:05:35,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25492 to 24304. [2021-11-07 15:05:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 24265 states have (on average 1.3663301050896353) internal successors, (33154), 24303 states have internal predecessors, (33154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 33154 transitions. [2021-11-07 15:05:35,646 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 33154 transitions. Word has length 149 [2021-11-07 15:05:35,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:35,647 INFO L470 AbstractCegarLoop]: Abstraction has 24304 states and 33154 transitions. [2021-11-07 15:05:35,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 33154 transitions. [2021-11-07 15:05:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-07 15:05:35,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:35,658 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:35,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 15:05:35,658 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:35,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash -733344694, now seen corresponding path program 2 times [2021-11-07 15:05:35,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:35,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388231423] [2021-11-07 15:05:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:35,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:35,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:35,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388231423] [2021-11-07 15:05:35,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388231423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:35,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:35,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:35,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025471186] [2021-11-07 15:05:35,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:35,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:35,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:35,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:35,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:35,826 INFO L87 Difference]: Start difference. First operand 24304 states and 33154 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:37,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:39,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:39,634 INFO L93 Difference]: Finished difference Result 53818 states and 73365 transitions. [2021-11-07 15:05:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:39,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 149 [2021-11-07 15:05:39,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:39,674 INFO L225 Difference]: With dead ends: 53818 [2021-11-07 15:05:39,675 INFO L226 Difference]: Without dead ends: 29560 [2021-11-07 15:05:39,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:39,697 INFO L933 BasicCegarLoop]: 5093 mSDtfsCounter, 5003 mSDsluCounter, 5028 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2090.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 10121 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.99ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2295.75ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:39,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5003 Valid, 10121 Invalid, 15 Unknown, 0 Unchecked, 8.99ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2295.75ms Time] [2021-11-07 15:05:39,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29560 states. [2021-11-07 15:05:41,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29560 to 28170. [2021-11-07 15:05:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28170 states, 28131 states have (on average 1.3660730155344638) internal successors, (38429), 28169 states have internal predecessors, (38429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:41,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28170 states to 28170 states and 38429 transitions. [2021-11-07 15:05:41,136 INFO L78 Accepts]: Start accepts. Automaton has 28170 states and 38429 transitions. Word has length 149 [2021-11-07 15:05:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:41,136 INFO L470 AbstractCegarLoop]: Abstraction has 28170 states and 38429 transitions. [2021-11-07 15:05:41,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 28170 states and 38429 transitions. [2021-11-07 15:05:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-07 15:05:41,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:41,145 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:41,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 15:05:41,145 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:41,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:41,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1081768851, now seen corresponding path program 1 times [2021-11-07 15:05:41,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:41,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754876601] [2021-11-07 15:05:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:41,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 15:05:41,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:41,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754876601] [2021-11-07 15:05:41,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754876601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:41,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:41,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:41,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980784543] [2021-11-07 15:05:41,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:41,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:41,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:41,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:41,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:41,371 INFO L87 Difference]: Start difference. First operand 28170 states and 38429 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:43,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:05:44,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:44,957 INFO L93 Difference]: Finished difference Result 56164 states and 76650 transitions. [2021-11-07 15:05:44,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:44,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 154 [2021-11-07 15:05:44,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:44,998 INFO L225 Difference]: With dead ends: 56164 [2021-11-07 15:05:44,998 INFO L226 Difference]: Without dead ends: 27895 [2021-11-07 15:05:45,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:45,026 INFO L933 BasicCegarLoop]: 5058 mSDtfsCounter, 4915 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2085.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4915 SdHoareTripleChecker+Valid, 5137 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2262.24ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:45,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4915 Valid, 5137 Invalid, 11 Unknown, 0 Unchecked, 5.33ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2262.24ms Time] [2021-11-07 15:05:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27895 states. [2021-11-07 15:05:46,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27895 to 27895. [2021-11-07 15:05:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27895 states, 27856 states have (on average 1.362578977599081) internal successors, (37956), 27894 states have internal predecessors, (37956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27895 states to 27895 states and 37956 transitions. [2021-11-07 15:05:46,656 INFO L78 Accepts]: Start accepts. Automaton has 27895 states and 37956 transitions. Word has length 154 [2021-11-07 15:05:46,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:46,656 INFO L470 AbstractCegarLoop]: Abstraction has 27895 states and 37956 transitions. [2021-11-07 15:05:46,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:46,657 INFO L276 IsEmpty]: Start isEmpty. Operand 27895 states and 37956 transitions. [2021-11-07 15:05:46,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 15:05:46,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:46,667 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:46,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 15:05:46,667 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:46,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:46,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1554225449, now seen corresponding path program 1 times [2021-11-07 15:05:46,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:46,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351861735] [2021-11-07 15:05:46,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:46,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:05:47,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:47,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351861735] [2021-11-07 15:05:47,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351861735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:47,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:47,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:05:47,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058038978] [2021-11-07 15:05:47,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:47,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:47,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:47,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:47,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:05:47,007 INFO L87 Difference]: Start difference. First operand 27895 states and 37956 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:51,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:51,214 INFO L93 Difference]: Finished difference Result 74352 states and 100779 transitions. [2021-11-07 15:05:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 15:05:51,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 155 [2021-11-07 15:05:51,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:51,275 INFO L225 Difference]: With dead ends: 74352 [2021-11-07 15:05:51,276 INFO L226 Difference]: Without dead ends: 46533 [2021-11-07 15:05:51,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 169.80ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 15:05:51,300 INFO L933 BasicCegarLoop]: 6356 mSDtfsCounter, 3434 mSDsluCounter, 17548 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1560.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3434 SdHoareTripleChecker+Valid, 23904 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.86ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1665.80ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:51,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3434 Valid, 23904 Invalid, 396 Unknown, 0 Unchecked, 19.86ms Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1665.80ms Time] [2021-11-07 15:05:51,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46533 states. [2021-11-07 15:05:53,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46533 to 27979. [2021-11-07 15:05:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27979 states, 27940 states have (on average 1.3614889047959915) internal successors, (38040), 27978 states have internal predecessors, (38040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:53,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27979 states to 27979 states and 38040 transitions. [2021-11-07 15:05:53,189 INFO L78 Accepts]: Start accepts. Automaton has 27979 states and 38040 transitions. Word has length 155 [2021-11-07 15:05:53,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:53,189 INFO L470 AbstractCegarLoop]: Abstraction has 27979 states and 38040 transitions. [2021-11-07 15:05:53,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:53,190 INFO L276 IsEmpty]: Start isEmpty. Operand 27979 states and 38040 transitions. [2021-11-07 15:05:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-07 15:05:53,198 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:53,198 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:53,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 15:05:53,199 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:53,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:53,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1140568477, now seen corresponding path program 1 times [2021-11-07 15:05:53,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:53,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521990901] [2021-11-07 15:05:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:53,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-07 15:05:53,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:53,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521990901] [2021-11-07 15:05:53,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521990901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:53,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:05:53,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:05:53,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643635750] [2021-11-07 15:05:53,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:53,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:05:53,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:05:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:53,550 INFO L87 Difference]: Start difference. First operand 27979 states and 38040 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:55,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:05:55,610 INFO L93 Difference]: Finished difference Result 55953 states and 76077 transitions. [2021-11-07 15:05:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:05:55,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 156 [2021-11-07 15:05:55,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:05:55,650 INFO L225 Difference]: With dead ends: 55953 [2021-11-07 15:05:55,650 INFO L226 Difference]: Without dead ends: 27982 [2021-11-07 15:05:55,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:05:55,677 INFO L933 BasicCegarLoop]: 5040 mSDtfsCounter, 0 mSDsluCounter, 4986 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 254.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10026 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.62ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 283.49ms IncrementalHoareTripleChecker+Time [2021-11-07 15:05:55,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10026 Invalid, 61 Unknown, 0 Unchecked, 8.62ms Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 283.49ms Time] [2021-11-07 15:05:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27982 states. [2021-11-07 15:05:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27982 to 27982. [2021-11-07 15:05:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27982 states, 27943 states have (on average 1.361450094835916) internal successors, (38043), 27981 states have internal predecessors, (38043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27982 states to 27982 states and 38043 transitions. [2021-11-07 15:05:57,216 INFO L78 Accepts]: Start accepts. Automaton has 27982 states and 38043 transitions. Word has length 156 [2021-11-07 15:05:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:05:57,216 INFO L470 AbstractCegarLoop]: Abstraction has 27982 states and 38043 transitions. [2021-11-07 15:05:57,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:05:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 27982 states and 38043 transitions. [2021-11-07 15:05:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 15:05:57,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:05:57,225 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:05:57,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-07 15:05:57,225 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:05:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:05:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash 936317364, now seen corresponding path program 1 times [2021-11-07 15:05:57,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:05:57,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057963630] [2021-11-07 15:05:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:57,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:05:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-07 15:05:57,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:05:57,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057963630] [2021-11-07 15:05:57,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057963630] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 15:05:57,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554171734] [2021-11-07 15:05:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:05:57,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 15:05:57,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 15:05:57,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 15:05:57,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 15:05:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:05:59,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 2818 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 15:05:59,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 15:05:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 15:05:59,582 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 15:05:59,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554171734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:05:59,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 15:05:59,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-07 15:05:59,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635019130] [2021-11-07 15:05:59,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:05:59,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:05:59,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:05:59,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:05:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:05:59,584 INFO L87 Difference]: Start difference. First operand 27982 states and 38043 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:04,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:04,203 INFO L93 Difference]: Finished difference Result 88419 states and 120409 transitions. [2021-11-07 15:06:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:06:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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 159 [2021-11-07 15:06:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:04,323 INFO L225 Difference]: With dead ends: 88419 [2021-11-07 15:06:04,323 INFO L226 Difference]: Without dead ends: 82480 [2021-11-07 15:06:04,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 239.95ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-07 15:06:04,353 INFO L933 BasicCegarLoop]: 9959 mSDtfsCounter, 24462 mSDsluCounter, 20001 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 263.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24462 SdHoareTripleChecker+Valid, 29960 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.08ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 281.97ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:04,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24462 Valid, 29960 Invalid, 76 Unknown, 0 Unchecked, 30.08ms Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 281.97ms Time] [2021-11-07 15:06:04,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82480 states. [2021-11-07 15:06:06,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82480 to 27898. [2021-11-07 15:06:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27898 states, 27859 states have (on average 1.361534872034172) internal successors, (37931), 27897 states have internal predecessors, (37931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27898 states to 27898 states and 37931 transitions. [2021-11-07 15:06:06,437 INFO L78 Accepts]: Start accepts. Automaton has 27898 states and 37931 transitions. Word has length 159 [2021-11-07 15:06:06,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:06,437 INFO L470 AbstractCegarLoop]: Abstraction has 27898 states and 37931 transitions. [2021-11-07 15:06:06,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 27898 states and 37931 transitions. [2021-11-07 15:06:06,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-07 15:06:06,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:06,448 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:06:06,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 15:06:06,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-07 15:06:06,650 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:06:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:06,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1668520956, now seen corresponding path program 1 times [2021-11-07 15:06:06,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:06,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194061] [2021-11-07 15:06:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:06,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:07,049 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:06:07,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:07,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194061] [2021-11-07 15:06:07,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:07,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:07,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:06:07,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826244972] [2021-11-07 15:06:07,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:07,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:06:07,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:07,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:06:07,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:07,051 INFO L87 Difference]: Start difference. First operand 27898 states and 37931 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:09,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:11,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:12,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:12,673 INFO L93 Difference]: Finished difference Result 55731 states and 75797 transitions. [2021-11-07 15:06:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:06:12,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 170 [2021-11-07 15:06:12,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:12,723 INFO L225 Difference]: With dead ends: 55731 [2021-11-07 15:06:12,724 INFO L226 Difference]: Without dead ends: 27912 [2021-11-07 15:06:12,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:12,749 INFO L933 BasicCegarLoop]: 5041 mSDtfsCounter, 0 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4051.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10072 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.72ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4081.00ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:12,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10072 Invalid, 14 Unknown, 0 Unchecked, 5.72ms Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 4081.00ms Time] [2021-11-07 15:06:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27912 states. [2021-11-07 15:06:14,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27912 to 27912. [2021-11-07 15:06:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27912 states, 27873 states have (on average 1.3613532809528934) internal successors, (37945), 27911 states have internal predecessors, (37945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27912 states to 27912 states and 37945 transitions. [2021-11-07 15:06:14,320 INFO L78 Accepts]: Start accepts. Automaton has 27912 states and 37945 transitions. Word has length 170 [2021-11-07 15:06:14,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:14,320 INFO L470 AbstractCegarLoop]: Abstraction has 27912 states and 37945 transitions. [2021-11-07 15:06:14,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand 27912 states and 37945 transitions. [2021-11-07 15:06:14,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-07 15:06:14,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:14,330 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:06:14,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-07 15:06:14,330 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:06:14,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:14,330 INFO L85 PathProgramCache]: Analyzing trace with hash 781079174, now seen corresponding path program 1 times [2021-11-07 15:06:14,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:14,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518594749] [2021-11-07 15:06:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:14,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:06:14,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:14,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518594749] [2021-11-07 15:06:14,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518594749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:14,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:14,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 15:06:14,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452478085] [2021-11-07 15:06:14,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:14,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 15:06:14,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:14,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 15:06:14,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:14,541 INFO L87 Difference]: Start difference. First operand 27912 states and 37945 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:16,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:18,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:20,812 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:22,324 INFO L93 Difference]: Finished difference Result 55766 states and 75839 transitions. [2021-11-07 15:06:22,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 15:06:22,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 170 [2021-11-07 15:06:22,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:22,360 INFO L225 Difference]: With dead ends: 55766 [2021-11-07 15:06:22,361 INFO L226 Difference]: Without dead ends: 27933 [2021-11-07 15:06:22,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 15:06:22,385 INFO L933 BasicCegarLoop]: 5040 mSDtfsCounter, 0 mSDsluCounter, 5025 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5758.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10065 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.98ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5824.25ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:22,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 10065 Invalid, 22 Unknown, 0 Unchecked, 6.98ms Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 5824.25ms Time] [2021-11-07 15:06:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27933 states. [2021-11-07 15:06:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27933 to 27933. [2021-11-07 15:06:23,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27933 states, 27894 states have (on average 1.3610812361081237) internal successors, (37966), 27932 states have internal predecessors, (37966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27933 states to 27933 states and 37966 transitions. [2021-11-07 15:06:23,925 INFO L78 Accepts]: Start accepts. Automaton has 27933 states and 37966 transitions. Word has length 170 [2021-11-07 15:06:23,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:23,925 INFO L470 AbstractCegarLoop]: Abstraction has 27933 states and 37966 transitions. [2021-11-07 15:06:23,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:23,926 INFO L276 IsEmpty]: Start isEmpty. Operand 27933 states and 37966 transitions. [2021-11-07 15:06:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-07 15:06:23,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:23,937 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:06:23,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-07 15:06:23,938 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:06:23,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:23,938 INFO L85 PathProgramCache]: Analyzing trace with hash 386712388, now seen corresponding path program 1 times [2021-11-07 15:06:23,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:23,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438439441] [2021-11-07 15:06:23,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:23,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:24,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:06:24,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:24,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438439441] [2021-11-07 15:06:24,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438439441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:24,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:24,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:06:24,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116588086] [2021-11-07 15:06:24,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:24,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:06:24,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:24,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:06:24,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:06:24,319 INFO L87 Difference]: Start difference. First operand 27933 states and 37966 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:28,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:30,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:33,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:37,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:39,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:41,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:44,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:46,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 15:06:49,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:49,095 INFO L93 Difference]: Finished difference Result 127212 states and 172083 transitions. [2021-11-07 15:06:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:06:49,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 170 [2021-11-07 15:06:49,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:49,416 INFO L225 Difference]: With dead ends: 127212 [2021-11-07 15:06:49,416 INFO L226 Difference]: Without dead ends: 99358 [2021-11-07 15:06:49,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.67ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:06:49,453 INFO L933 BasicCegarLoop]: 13271 mSDtfsCounter, 13660 mSDsluCounter, 28493 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18925.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13660 SdHoareTripleChecker+Valid, 41764 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.50ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19158.37ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:49,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13660 Valid, 41764 Invalid, 73 Unknown, 0 Unchecked, 28.50ms Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 8 Unknown, 0 Unchecked, 19158.37ms Time] [2021-11-07 15:06:49,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99358 states. [2021-11-07 15:06:51,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99358 to 27996. [2021-11-07 15:06:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27996 states, 27957 states have (on average 1.3602675537432485) internal successors, (38029), 27995 states have internal predecessors, (38029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27996 states to 27996 states and 38029 transitions. [2021-11-07 15:06:51,728 INFO L78 Accepts]: Start accepts. Automaton has 27996 states and 38029 transitions. Word has length 170 [2021-11-07 15:06:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:51,729 INFO L470 AbstractCegarLoop]: Abstraction has 27996 states and 38029 transitions. [2021-11-07 15:06:51,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 27996 states and 38029 transitions. [2021-11-07 15:06:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-07 15:06:51,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:51,737 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:06:51,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-07 15:06:51,737 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:06:51,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:51,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1453189176, now seen corresponding path program 1 times [2021-11-07 15:06:51,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:51,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829723472] [2021-11-07 15:06:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:51,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:06:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:06:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:06:52,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:06:52,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829723472] [2021-11-07 15:06:52,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829723472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:06:52,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:06:52,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:06:52,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116396190] [2021-11-07 15:06:52,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:06:52,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:06:52,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:06:52,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:06:52,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:06:52,159 INFO L87 Difference]: Start difference. First operand 27996 states and 38029 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:57,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:06:57,769 INFO L93 Difference]: Finished difference Result 80953 states and 109675 transitions. [2021-11-07 15:06:57,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 15:06:57,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 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 170 [2021-11-07 15:06:57,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:06:57,845 INFO L225 Difference]: With dead ends: 80953 [2021-11-07 15:06:57,846 INFO L226 Difference]: Without dead ends: 53036 [2021-11-07 15:06:57,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 177.44ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:06:57,877 INFO L933 BasicCegarLoop]: 8613 mSDtfsCounter, 4094 mSDsluCounter, 21719 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1975.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4094 SdHoareTripleChecker+Valid, 30332 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.22ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2126.86ms IncrementalHoareTripleChecker+Time [2021-11-07 15:06:57,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4094 Valid, 30332 Invalid, 574 Unknown, 0 Unchecked, 23.22ms Time], IncrementalHoareTripleChecker [4 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 2126.86ms Time] [2021-11-07 15:06:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53036 states. [2021-11-07 15:06:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53036 to 28038. [2021-11-07 15:06:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28038 states, 27999 states have (on average 1.3597271331118967) internal successors, (38071), 28037 states have internal predecessors, (38071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28038 states to 28038 states and 38071 transitions. [2021-11-07 15:06:59,963 INFO L78 Accepts]: Start accepts. Automaton has 28038 states and 38071 transitions. Word has length 170 [2021-11-07 15:06:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:06:59,963 INFO L470 AbstractCegarLoop]: Abstraction has 28038 states and 38071 transitions. [2021-11-07 15:06:59,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:06:59,964 INFO L276 IsEmpty]: Start isEmpty. Operand 28038 states and 38071 transitions. [2021-11-07 15:06:59,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-07 15:06:59,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:06:59,975 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:06:59,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-07 15:06:59,975 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:06:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:06:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1533150141, now seen corresponding path program 1 times [2021-11-07 15:06:59,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:06:59,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598000062] [2021-11-07 15:06:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:06:59,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:07:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:07:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:07:00,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:07:00,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598000062] [2021-11-07 15:07:00,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598000062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:07:00,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:07:00,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:07:00,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394679619] [2021-11-07 15:07:00,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:07:00,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:07:00,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:07:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:07:00,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:07:00,224 INFO L87 Difference]: Start difference. First operand 28038 states and 38071 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:07:02,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 15:07:02,786 INFO L93 Difference]: Finished difference Result 39412 states and 53317 transitions. [2021-11-07 15:07:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 15:07:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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 170 [2021-11-07 15:07:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 15:07:02,827 INFO L225 Difference]: With dead ends: 39412 [2021-11-07 15:07:02,827 INFO L226 Difference]: Without dead ends: 33557 [2021-11-07 15:07:02,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 119.46ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 15:07:02,837 INFO L933 BasicCegarLoop]: 5985 mSDtfsCounter, 10487 mSDsluCounter, 7432 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10487 SdHoareTripleChecker+Valid, 13417 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.76ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 172.75ms IncrementalHoareTripleChecker+Time [2021-11-07 15:07:02,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10487 Valid, 13417 Invalid, 56 Unknown, 0 Unchecked, 13.76ms Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 172.75ms Time] [2021-11-07 15:07:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33557 states. [2021-11-07 15:07:04,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33557 to 28038. [2021-11-07 15:07:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28038 states, 27999 states have (on average 1.3594771241830066) internal successors, (38064), 28037 states have internal predecessors, (38064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:07:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28038 states to 28038 states and 38064 transitions. [2021-11-07 15:07:04,649 INFO L78 Accepts]: Start accepts. Automaton has 28038 states and 38064 transitions. Word has length 170 [2021-11-07 15:07:04,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 15:07:04,649 INFO L470 AbstractCegarLoop]: Abstraction has 28038 states and 38064 transitions. [2021-11-07 15:07:04,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 15:07:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 28038 states and 38064 transitions. [2021-11-07 15:07:04,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-07 15:07:04,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 15:07:04,658 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 15:07:04,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-07 15:07:04,658 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-07 15:07:04,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 15:07:04,659 INFO L85 PathProgramCache]: Analyzing trace with hash 669895447, now seen corresponding path program 1 times [2021-11-07 15:07:04,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 15:07:04,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123946126] [2021-11-07 15:07:04,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 15:07:04,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 15:07:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 15:07:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-07 15:07:05,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 15:07:05,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123946126] [2021-11-07 15:07:05,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123946126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 15:07:05,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 15:07:05,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 15:07:05,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605531418] [2021-11-07 15:07:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 15:07:05,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 15:07:05,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 15:07:05,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 15:07:05,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 15:07:05,113 INFO L87 Difference]: Start difference. First operand 28038 states and 38064 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 5 states have internal predecessors, (161), 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)