./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 c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-c36dfa3 [2021-11-04 06:53:54,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 06:53:54,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 06:53:54,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 06:53:54,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 06:53:54,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 06:53:54,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 06:53:54,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 06:53:54,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 06:53:54,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 06:53:54,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 06:53:54,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 06:53:54,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 06:53:54,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 06:53:54,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 06:53:54,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 06:53:54,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 06:53:54,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 06:53:54,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 06:53:54,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 06:53:54,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 06:53:54,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 06:53:54,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 06:53:54,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 06:53:54,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 06:53:54,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 06:53:54,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 06:53:54,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 06:53:54,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 06:53:54,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 06:53:54,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 06:53:54,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 06:53:54,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 06:53:54,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 06:53:54,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 06:53:54,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 06:53:54,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 06:53:54,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 06:53:54,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 06:53:54,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 06:53:54,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 06:53:54,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 06:53:54,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 06:53:54,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 06:53:54,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 06:53:54,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 06:53:54,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 06:53:54,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 06:53:54,516 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 06:53:54,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 06:53:54,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 06:53:54,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 06:53:54,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 06:53:54,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 06:53:54,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 06:53:54,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 06:53:54,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 06:53:54,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 06:53:54,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 06:53:54,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 06:53:54,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 06:53:54,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:53:54,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 06:53:54,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 06:53:54,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 06:53:54,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2021-11-04 06:53:54,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 06:53:54,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 06:53:54,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 06:53:54,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 06:53:54,743 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 06:53:54,744 INFO L432 ainManager$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 [2021-11-04 06:53:54,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/addc1afab/7b8978979d8e4ef3a9a93a96bf73c481/FLAG8a5bcf8a2 [2021-11-04 06:53:55,362 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 06:53:55,363 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 [2021-11-04 06:53:55,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/addc1afab/7b8978979d8e4ef3a9a93a96bf73c481/FLAG8a5bcf8a2 [2021-11-04 06:53:55,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/addc1afab/7b8978979d8e4ef3a9a93a96bf73c481 [2021-11-04 06:53:55,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 06:53:55,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 06:53:55,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 06:53:55,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 06:53:55,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 06:53:55,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:53:55" (1/1) ... [2021-11-04 06:53:55,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5a3ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:55, skipping insertion in model container [2021-11-04 06:53:55,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 06:53:55" (1/1) ... [2021-11-04 06:53:55,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 06:53:55,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 06:53:57,127 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] [2021-11-04 06:53:57,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:53:57,244 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 06:53:57,542 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] [2021-11-04 06:53:57,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 06:53:57,604 INFO L208 MainTranslator]: Completed translation [2021-11-04 06:53:57,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57 WrapperNode [2021-11-04 06:53:57,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 06:53:57,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 06:53:57,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 06:53:57,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 06:53:57,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:57,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 06:53:58,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 06:53:58,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 06:53:58,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 06:53:58,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 06:53:58,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 06:53:58,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 06:53:58,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 06:53:58,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (1/1) ... [2021-11-04 06:53:58,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 06:53:58,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 06:53:58,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 06:53:58,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 06:53:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 06:53:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 06:53:58,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 06:53:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 06:53:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 06:53:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 06:53:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 06:53:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 06:53:58,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 06:53:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-04 06:53:58,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 06:53:58,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 06:54:05,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 06:54:05,149 INFO L299 CfgBuilder]: Removed 4216 assume(true) statements. [2021-11-04 06:54:05,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:54:05 BoogieIcfgContainer [2021-11-04 06:54:05,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 06:54:05,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 06:54:05,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 06:54:05,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 06:54:05,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 06:53:55" (1/3) ... [2021-11-04 06:54:05,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f6a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:54:05, skipping insertion in model container [2021-11-04 06:54:05,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 06:53:57" (2/3) ... [2021-11-04 06:54:05,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f6a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 06:54:05, skipping insertion in model container [2021-11-04 06:54:05,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 06:54:05" (3/3) ... [2021-11-04 06:54:05,162 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2021-11-04 06:54:05,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 06:54:05,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 115 error locations. [2021-11-04 06:54:05,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 06:54:05,220 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 06:54:05,220 INFO L340 AbstractCegarLoop]: Starting to check reachability of 115 error locations. [2021-11-04 06:54:05,276 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) [2021-11-04 06:54:05,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-04 06:54:05,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:54:05,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:54:05,284 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)] === [2021-11-04 06:54:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:54:05,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2040343940, now seen corresponding path program 1 times [2021-11-04 06:54:05,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:54:05,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915440518] [2021-11-04 06:54:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:54:05,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:54:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:54:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:54:05,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:54:05,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915440518] [2021-11-04 06:54:05,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915440518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:54:05,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:54:05,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:54:05,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012402719] [2021-11-04 06:54:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:54:05,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-04 06:54:05,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:54:05,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-04 06:54:05,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:54:05,774 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) [2021-11-04 06:54:07,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:11,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:14,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:18,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:20,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:22,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:24,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:29,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:49,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:54:49,203 INFO L93 Difference]: Finished difference Result 10058 states and 14173 transitions. [2021-11-04 06:54:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-04 06:54:49,205 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 [2021-11-04 06:54:49,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:54:49,252 INFO L225 Difference]: With dead ends: 10058 [2021-11-04 06:54:49,252 INFO L226 Difference]: Without dead ends: 5008 [2021-11-04 06:54:49,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-04 06:54:49,265 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6792 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40460.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 6800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6792 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42824.03ms IncrementalHoareTripleChecker+Time [2021-11-04 06:54:49,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 6800 Unknown, 0 Unchecked, 33.83ms Time], IncrementalHoareTripleChecker [0 Valid, 6792 Invalid, 8 Unknown, 0 Unchecked, 42824.03ms Time] [2021-11-04 06:54:49,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2021-11-04 06:54:49,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5008. [2021-11-04 06:54:49,403 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) [2021-11-04 06:54:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 6777 transitions. [2021-11-04 06:54:49,416 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 6777 transitions. Word has length 40 [2021-11-04 06:54:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:54:49,416 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 6777 transitions. [2021-11-04 06:54:49,416 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) [2021-11-04 06:54:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 6777 transitions. [2021-11-04 06:54:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-04 06:54:49,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:54:49,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:54:49,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 06:54:49,419 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)] === [2021-11-04 06:54:49,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:54:49,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1380812418, now seen corresponding path program 1 times [2021-11-04 06:54:49,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:54:49,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859392326] [2021-11-04 06:54:49,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:54:49,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:54:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:54:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 06:54:49,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:54:49,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859392326] [2021-11-04 06:54:49,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859392326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:54:49,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:54:49,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:54:49,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264414211] [2021-11-04 06:54:49,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:54:49,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:54:49,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:54:49,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:54:49,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:54:49,645 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) [2021-11-04 06:54:51,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:56,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:54:59,198 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:04,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:06,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:08,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:11,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:18,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:20,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:26,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:28,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:29,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:55:59,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:55:59,768 INFO L93 Difference]: Finished difference Result 10011 states and 13551 transitions. [2021-11-04 06:55:59,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:55:59,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-04 06:55:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:55:59,786 INFO L225 Difference]: With dead ends: 10011 [2021-11-04 06:55:59,786 INFO L226 Difference]: Without dead ends: 5011 [2021-11-04 06:55:59,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:55:59,795 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 6667 mSDsCounter, 0 mSdLazyCounter, 13535 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66156.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 86.84ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13535 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69472.97ms IncrementalHoareTripleChecker+Time [2021-11-04 06:55:59,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13547 Unknown, 0 Unchecked, 86.84ms Time], IncrementalHoareTripleChecker [4 Valid, 13535 Invalid, 8 Unknown, 0 Unchecked, 69472.97ms Time] [2021-11-04 06:55:59,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5011 states. [2021-11-04 06:55:59,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5011 to 5011. [2021-11-04 06:55:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5011 states, 4896 states have (on average 1.3848039215686274) internal successors, (6780), 5010 states have internal predecessors, (6780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:55:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 6780 transitions. [2021-11-04 06:55:59,878 INFO L78 Accepts]: Start accepts. Automaton has 5011 states and 6780 transitions. Word has length 40 [2021-11-04 06:55:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:55:59,879 INFO L470 AbstractCegarLoop]: Abstraction has 5011 states and 6780 transitions. [2021-11-04 06:55:59,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:55:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5011 states and 6780 transitions. [2021-11-04 06:55:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-04 06:55:59,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:55:59,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 06:55:59,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 06:55:59,883 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 06:55:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:55:59,884 INFO L85 PathProgramCache]: Analyzing trace with hash -219422955, now seen corresponding path program 1 times [2021-11-04 06:55:59,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:55:59,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521295513] [2021-11-04 06:55:59,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:55:59,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:55:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:56:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-04 06:56:00,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:56:00,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521295513] [2021-11-04 06:56:00,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521295513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:56:00,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:56:00,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:56:00,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108955958] [2021-11-04 06:56:00,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:56:00,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:56:00,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:56:00,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:56:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:56:00,097 INFO L87 Difference]: Start difference. First operand 5011 states and 6780 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:56:02,139 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:07,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:10,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:15,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:18,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:20,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:23,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:28,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:32,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:56:42,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:16,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:57:16,221 INFO L93 Difference]: Finished difference Result 10015 states and 13556 transitions. [2021-11-04 06:57:16,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:57:16,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-04 06:57:16,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:57:16,235 INFO L225 Difference]: With dead ends: 10015 [2021-11-04 06:57:16,235 INFO L226 Difference]: Without dead ends: 5016 [2021-11-04 06:57:16,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:57:16,243 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 6665 mSDsCounter, 0 mSdLazyCounter, 13529 mSolverCounterSat, 8 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71307.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.49ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13529 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75477.33ms IncrementalHoareTripleChecker+Time [2021-11-04 06:57:16,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13547 Unknown, 0 Unchecked, 84.49ms Time], IncrementalHoareTripleChecker [8 Valid, 13529 Invalid, 10 Unknown, 0 Unchecked, 75477.33ms Time] [2021-11-04 06:57:16,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5016 states. [2021-11-04 06:57:16,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5016 to 5016. [2021-11-04 06:57:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 4901 states have (on average 1.3844113446235462) internal successors, (6785), 5015 states have internal predecessors, (6785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:57:16,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 6785 transitions. [2021-11-04 06:57:16,338 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 6785 transitions. Word has length 43 [2021-11-04 06:57:16,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:57:16,339 INFO L470 AbstractCegarLoop]: Abstraction has 5016 states and 6785 transitions. [2021-11-04 06:57:16,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:57:16,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 6785 transitions. [2021-11-04 06:57:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-04 06:57:16,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:57:16,343 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] [2021-11-04 06:57:16,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 06:57:16,345 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 06:57:16,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:57:16,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1623613190, now seen corresponding path program 1 times [2021-11-04 06:57:16,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:57:16,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023976239] [2021-11-04 06:57:16,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:57:16,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:57:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:57:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 06:57:16,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:57:16,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023976239] [2021-11-04 06:57:16,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023976239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:57:16,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:57:16,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:57:16,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981547411] [2021-11-04 06:57:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:57:16,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:57:16,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:57:16,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:57:16,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:57:16,556 INFO L87 Difference]: Start difference. First operand 5016 states and 6785 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:57:18,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:24,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:27,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:32,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:34,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:37,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:40,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:45,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:46,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:48,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:50,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:57:59,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:34,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:58:34,697 INFO L93 Difference]: Finished difference Result 10053 states and 13600 transitions. [2021-11-04 06:58:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:58:34,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-11-04 06:58:34,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:58:34,713 INFO L225 Difference]: With dead ends: 10053 [2021-11-04 06:58:34,713 INFO L226 Difference]: Without dead ends: 5076 [2021-11-04 06:58:34,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:58:34,720 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 78 mSDsluCounter, 6732 mSDsCounter, 0 mSdLazyCounter, 13539 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73174.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.23ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13539 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77549.06ms IncrementalHoareTripleChecker+Time [2021-11-04 06:58:34,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 0 Invalid, 13553 Unknown, 0 Unchecked, 79.23ms Time], IncrementalHoareTripleChecker [5 Valid, 13539 Invalid, 9 Unknown, 0 Unchecked, 77549.06ms Time] [2021-11-04 06:58:34,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2021-11-04 06:58:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 5058. [2021-11-04 06:58:34,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5058 states, 4943 states have (on average 1.3845842605705037) internal successors, (6844), 5057 states have internal predecessors, (6844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:58:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5058 states to 5058 states and 6844 transitions. [2021-11-04 06:58:34,808 INFO L78 Accepts]: Start accepts. Automaton has 5058 states and 6844 transitions. Word has length 48 [2021-11-04 06:58:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:58:34,809 INFO L470 AbstractCegarLoop]: Abstraction has 5058 states and 6844 transitions. [2021-11-04 06:58:34,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:58:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5058 states and 6844 transitions. [2021-11-04 06:58:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-04 06:58:34,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:58:34,824 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] [2021-11-04 06:58:34,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 06:58:34,825 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr110ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 06:58:34,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:58:34,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1159474547, now seen corresponding path program 1 times [2021-11-04 06:58:34,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:58:34,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169465432] [2021-11-04 06:58:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:58:34,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:58:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:58:34,993 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 06:58:34,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:58:34,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169465432] [2021-11-04 06:58:34,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169465432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:58:34,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:58:34,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 06:58:34,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385218757] [2021-11-04 06:58:34,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:58:34,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:58:34,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:58:34,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:58:34,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:58:34,996 INFO L87 Difference]: Start difference. First operand 5058 states and 6844 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:58:37,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:42,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:45,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:51,951 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:54,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:56,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:58:59,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:05,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:07,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:15,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:18,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:20,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 06:59:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 06:59:58,804 INFO L93 Difference]: Finished difference Result 13750 states and 18632 transitions. [2021-11-04 06:59:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 06:59:58,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-11-04 06:59:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 06:59:58,832 INFO L225 Difference]: With dead ends: 13750 [2021-11-04 06:59:58,833 INFO L226 Difference]: Without dead ends: 8731 [2021-11-04 06:59:58,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:59:58,841 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4960 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 13501 mSolverCounterSat, 3 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77546.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4960 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 84.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13501 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82975.96ms IncrementalHoareTripleChecker+Time [2021-11-04 06:59:58,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4960 Valid, 0 Invalid, 13515 Unknown, 0 Unchecked, 84.80ms Time], IncrementalHoareTripleChecker [3 Valid, 13501 Invalid, 11 Unknown, 0 Unchecked, 82975.96ms Time] [2021-11-04 06:59:58,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2021-11-04 06:59:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 8504. [2021-11-04 06:59:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8389 states have (on average 1.388961735606151) internal successors, (11652), 8503 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:59:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 11652 transitions. [2021-11-04 06:59:58,970 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 11652 transitions. Word has length 54 [2021-11-04 06:59:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 06:59:58,970 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 11652 transitions. [2021-11-04 06:59:58,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 06:59:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 11652 transitions. [2021-11-04 06:59:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-04 06:59:58,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 06:59:58,972 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, 1, 1, 1, 1] [2021-11-04 06:59:58,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 06:59:58,973 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr110ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 06:59:58,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 06:59:58,974 INFO L85 PathProgramCache]: Analyzing trace with hash -573737611, now seen corresponding path program 1 times [2021-11-04 06:59:58,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 06:59:58,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303145828] [2021-11-04 06:59:58,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 06:59:58,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 06:59:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 06:59:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 06:59:59,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 06:59:59,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303145828] [2021-11-04 06:59:59,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303145828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 06:59:59,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 06:59:59,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 06:59:59,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754212090] [2021-11-04 06:59:59,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 06:59:59,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 06:59:59,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 06:59:59,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 06:59:59,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 06:59:59,192 INFO L87 Difference]: Start difference. First operand 8504 states and 11652 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:00:01,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:05,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:08,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:13,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:15,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:18,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:21,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:26,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:30,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:37,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:57,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:00:59,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:13,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:16,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:01:35,684 INFO L93 Difference]: Finished difference Result 14039 states and 19230 transitions. [2021-11-04 07:01:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:01:35,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-11-04 07:01:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:01:35,763 INFO L225 Difference]: With dead ends: 14039 [2021-11-04 07:01:35,763 INFO L226 Difference]: Without dead ends: 14037 [2021-11-04 07:01:35,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:01:35,786 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3862 mSDsluCounter, 6717 mSDsCounter, 0 mSdLazyCounter, 13483 mSolverCounterSat, 1 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88837.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3862 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13483 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95613.28ms IncrementalHoareTripleChecker+Time [2021-11-04 07:01:35,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3862 Valid, 0 Invalid, 13496 Unknown, 0 Unchecked, 76.42ms Time], IncrementalHoareTripleChecker [1 Valid, 13483 Invalid, 12 Unknown, 0 Unchecked, 95613.28ms Time] [2021-11-04 07:01:35,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14037 states. [2021-11-04 07:01:36,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14037 to 13893. [2021-11-04 07:01:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13893 states, 13778 states have (on average 1.3878647118594862) internal successors, (19122), 13892 states have internal predecessors, (19122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:01:36,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13893 states to 13893 states and 19122 transitions. [2021-11-04 07:01:36,117 INFO L78 Accepts]: Start accepts. Automaton has 13893 states and 19122 transitions. Word has length 66 [2021-11-04 07:01:36,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:01:36,118 INFO L470 AbstractCegarLoop]: Abstraction has 13893 states and 19122 transitions. [2021-11-04 07:01:36,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:01:36,119 INFO L276 IsEmpty]: Start isEmpty. Operand 13893 states and 19122 transitions. [2021-11-04 07:01:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-04 07:01:36,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:01:36,119 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, 1, 1, 1, 1, 1] [2021-11-04 07:01:36,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 07:01:36,120 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr111ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 07:01:36,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:01:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash -605973919, now seen corresponding path program 1 times [2021-11-04 07:01:36,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:01:36,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211582913] [2021-11-04 07:01:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:01:36,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:01:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:01:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 07:01:36,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:01:36,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211582913] [2021-11-04 07:01:36,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211582913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:01:36,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:01:36,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 07:01:36,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286929802] [2021-11-04 07:01:36,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:01:36,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:01:36,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:01:36,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:01:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:01:36,337 INFO L87 Difference]: Start difference. First operand 13893 states and 19122 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:01:38,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:43,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:45,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:50,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:53,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:55,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:01:58,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:02:05,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:02:13,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:02:16,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:02:36,306 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 [] [2021-11-04 07:03:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:03:06,784 INFO L93 Difference]: Finished difference Result 24094 states and 33161 transitions. [2021-11-04 07:03:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:03:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2021-11-04 07:03:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:03:06,885 INFO L225 Difference]: With dead ends: 24094 [2021-11-04 07:03:06,885 INFO L226 Difference]: Without dead ends: 24092 [2021-11-04 07:03:06,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:03:06,912 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3816 mSDsluCounter, 6719 mSDsCounter, 0 mSdLazyCounter, 13488 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82343.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.82ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13488 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89508.99ms IncrementalHoareTripleChecker+Time [2021-11-04 07:03:06,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3816 Valid, 0 Invalid, 13500 Unknown, 0 Unchecked, 75.82ms Time], IncrementalHoareTripleChecker [1 Valid, 13488 Invalid, 11 Unknown, 0 Unchecked, 89508.99ms Time] [2021-11-04 07:03:06,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24092 states. [2021-11-04 07:03:07,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24092 to 23864. [2021-11-04 07:03:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23864 states, 23749 states have (on average 1.3867531264474293) internal successors, (32934), 23863 states have internal predecessors, (32934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:03:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23864 states to 23864 states and 32934 transitions. [2021-11-04 07:03:07,471 INFO L78 Accepts]: Start accepts. Automaton has 23864 states and 32934 transitions. Word has length 67 [2021-11-04 07:03:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:03:07,471 INFO L470 AbstractCegarLoop]: Abstraction has 23864 states and 32934 transitions. [2021-11-04 07:03:07,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:03:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 23864 states and 32934 transitions. [2021-11-04 07:03:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-04 07:03:07,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:03:07,472 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, 1, 1, 1, 1, 1, 1] [2021-11-04 07:03:07,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 07:03:07,473 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr112ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 07:03:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:03:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1605299457, now seen corresponding path program 1 times [2021-11-04 07:03:07,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:03:07,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942506967] [2021-11-04 07:03:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:03:07,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:03:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:03:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 07:03:07,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:03:07,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942506967] [2021-11-04 07:03:07,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942506967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:03:07,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:03:07,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 07:03:07,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486206987] [2021-11-04 07:03:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:03:07,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:03:07,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:03:07,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:03:07,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:03:07,645 INFO L87 Difference]: Start difference. First operand 23864 states and 32934 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:03:09,693 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 [] [2021-11-04 07:03:14,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:17,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:24,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:26,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:29,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:31,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:36,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:39,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:42,218 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:49,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:03:53,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:34,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:04:34,879 INFO L93 Difference]: Finished difference Result 23864 states and 32934 transitions. [2021-11-04 07:04:34,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:04:34,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-11-04 07:04:34,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:04:34,962 INFO L225 Difference]: With dead ends: 23864 [2021-11-04 07:04:34,962 INFO L226 Difference]: Without dead ends: 23854 [2021-11-04 07:04:34,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:04:34,977 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 128 mSDsluCounter, 6550 mSDsCounter, 0 mSdLazyCounter, 13321 mSolverCounterSat, 8 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80070.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.09ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13321 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86409.50ms IncrementalHoareTripleChecker+Time [2021-11-04 07:04:34,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 0 Invalid, 13337 Unknown, 0 Unchecked, 68.09ms Time], IncrementalHoareTripleChecker [8 Valid, 13321 Invalid, 8 Unknown, 0 Unchecked, 86409.50ms Time] [2021-11-04 07:04:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23854 states. [2021-11-04 07:04:35,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23854 to 23854. [2021-11-04 07:04:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23854 states, 23744 states have (on average 1.38544474393531) internal successors, (32896), 23853 states have internal predecessors, (32896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:04:35,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23854 states to 23854 states and 32896 transitions. [2021-11-04 07:04:35,329 INFO L78 Accepts]: Start accepts. Automaton has 23854 states and 32896 transitions. Word has length 68 [2021-11-04 07:04:35,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:04:35,329 INFO L470 AbstractCegarLoop]: Abstraction has 23854 states and 32896 transitions. [2021-11-04 07:04:35,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:04:35,329 INFO L276 IsEmpty]: Start isEmpty. Operand 23854 states and 32896 transitions. [2021-11-04 07:04:35,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-04 07:04:35,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:04:35,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:04:35,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-04 07:04:35,330 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr113ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 07:04:35,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:04:35,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1775347243, now seen corresponding path program 1 times [2021-11-04 07:04:35,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:04:35,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966881194] [2021-11-04 07:04:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:04:35,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:04:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:04:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 07:04:35,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:04:35,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966881194] [2021-11-04 07:04:35,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966881194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:04:35,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:04:35,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 07:04:35,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787537224] [2021-11-04 07:04:35,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:04:35,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:04:35,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:04:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:04:35,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:04:35,505 INFO L87 Difference]: Start difference. First operand 23854 states and 32896 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:04:37,558 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 [] [2021-11-04 07:04:42,054 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:44,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:50,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:52,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:55,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:04:57,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:04,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:07,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:09,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:05:19,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:06:08,303 INFO L93 Difference]: Finished difference Result 61986 states and 85446 transitions. [2021-11-04 07:06:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:06:08,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-11-04 07:06:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:06:08,398 INFO L225 Difference]: With dead ends: 61986 [2021-11-04 07:06:08,399 INFO L226 Difference]: Without dead ends: 38171 [2021-11-04 07:06:08,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:06:08,437 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3074 mSDsluCounter, 6228 mSDsCounter, 0 mSdLazyCounter, 13570 mSolverCounterSat, 136 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83409.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3074 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.82ms SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 13570 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91456.63ms IncrementalHoareTripleChecker+Time [2021-11-04 07:06:08,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3074 Valid, 0 Invalid, 13716 Unknown, 0 Unchecked, 72.82ms Time], IncrementalHoareTripleChecker [136 Valid, 13570 Invalid, 10 Unknown, 0 Unchecked, 91456.63ms Time] [2021-11-04 07:06:08,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38171 states. [2021-11-04 07:06:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38171 to 24644. [2021-11-04 07:06:08,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24644 states, 24534 states have (on average 1.371892068150322) internal successors, (33658), 24643 states have internal predecessors, (33658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:06:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24644 states to 24644 states and 33658 transitions. [2021-11-04 07:06:08,966 INFO L78 Accepts]: Start accepts. Automaton has 24644 states and 33658 transitions. Word has length 69 [2021-11-04 07:06:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:06:08,966 INFO L470 AbstractCegarLoop]: Abstraction has 24644 states and 33658 transitions. [2021-11-04 07:06:08,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:06:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 24644 states and 33658 transitions. [2021-11-04 07:06:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-04 07:06:08,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:06:08,967 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 07:06:08,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-04 07:06:08,968 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr114ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 07:06:08,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:06:08,968 INFO L85 PathProgramCache]: Analyzing trace with hash -798787447, now seen corresponding path program 1 times [2021-11-04 07:06:08,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:06:08,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900346521] [2021-11-04 07:06:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:06:08,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:06:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:06:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 07:06:09,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:06:09,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900346521] [2021-11-04 07:06:09,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900346521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:06:09,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:06:09,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-04 07:06:09,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483606963] [2021-11-04 07:06:09,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:06:09,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:06:09,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:06:09,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:06:09,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:06:09,218 INFO L87 Difference]: Start difference. First operand 24644 states and 33658 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:06:11,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:15,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:18,429 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:23,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:25,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:28,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:30,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:38,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:45,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:06:48,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:07,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:21,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 07:07:47,889 INFO L93 Difference]: Finished difference Result 37295 states and 50920 transitions. [2021-11-04 07:07:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 07:07:47,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-11-04 07:07:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 07:07:47,959 INFO L225 Difference]: With dead ends: 37295 [2021-11-04 07:07:47,959 INFO L226 Difference]: Without dead ends: 37281 [2021-11-04 07:07:47,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:07:47,978 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4275 mSDsluCounter, 6719 mSDsCounter, 0 mSdLazyCounter, 13499 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88659.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13499 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97514.53ms IncrementalHoareTripleChecker+Time [2021-11-04 07:07:47,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4275 Valid, 0 Invalid, 13509 Unknown, 0 Unchecked, 72.48ms Time], IncrementalHoareTripleChecker [0 Valid, 13499 Invalid, 10 Unknown, 0 Unchecked, 97514.53ms Time] [2021-11-04 07:07:48,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37281 states. [2021-11-04 07:07:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37281 to 34819. [2021-11-04 07:07:48,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34819 states, 34709 states have (on average 1.3710276873433402) internal successors, (47587), 34818 states have internal predecessors, (47587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:07:48,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34819 states to 34819 states and 47587 transitions. [2021-11-04 07:07:48,665 INFO L78 Accepts]: Start accepts. Automaton has 34819 states and 47587 transitions. Word has length 70 [2021-11-04 07:07:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 07:07:48,666 INFO L470 AbstractCegarLoop]: Abstraction has 34819 states and 47587 transitions. [2021-11-04 07:07:48,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:07:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34819 states and 47587 transitions. [2021-11-04 07:07:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 07:07:48,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 07:07:48,667 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] [2021-11-04 07:07:48,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-04 07:07:48,668 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 112 more)] === [2021-11-04 07:07:48,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 07:07:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1218355490, now seen corresponding path program 1 times [2021-11-04 07:07:48,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 07:07:48,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837453931] [2021-11-04 07:07:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 07:07:48,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 07:07:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 07:07:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-04 07:07:49,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 07:07:49,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837453931] [2021-11-04 07:07:49,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837453931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 07:07:49,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 07:07:49,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 07:07:49,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871475423] [2021-11-04 07:07:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 07:07:49,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 07:07:49,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 07:07:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 07:07:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 07:07:49,015 INFO L87 Difference]: Start difference. First operand 34819 states and 47587 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 07:07:51,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:07:57,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:00,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:06,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:08,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:11,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:14,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:19,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:21,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 07:08:24,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15