./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-3.0/module_get_put-drivers-block-pktcdvd.ko.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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 14:14:36,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 14:14:36,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 14:14:36,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 14:14:36,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 14:14:36,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 14:14:36,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 14:14:36,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 14:14:36,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 14:14:36,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 14:14:36,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 14:14:36,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 14:14:36,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 14:14:36,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 14:14:36,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 14:14:36,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 14:14:36,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 14:14:36,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 14:14:36,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 14:14:36,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 14:14:36,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 14:14:36,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 14:14:36,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 14:14:36,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 14:14:36,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 14:14:36,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 14:14:36,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 14:14:36,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 14:14:36,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 14:14:36,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 14:14:36,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 14:14:36,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 14:14:36,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 14:14:36,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 14:14:36,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 14:14:36,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 14:14:36,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 14:14:36,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 14:14:36,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 14:14:36,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 14:14:36,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 14:14:36,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 14:14:36,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 14:14:36,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 14:14:36,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 14:14:36,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 14:14:36,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 14:14:36,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 14:14:36,707 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 14:14:36,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 14:14:36,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 14:14:36,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 14:14:36,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 14:14:36,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 14:14:36,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 14:14:36,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 14:14:36,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 14:14:36,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 14:14:36,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 14:14:36,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 14:14:36,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 14:14:36,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 14:14:36,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 14:14:36,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 14:14:36,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 14:14:36,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 14:14:36,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 14:14:36,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 14:14:36,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 14:14:36,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 14:14:36,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 14:14:36,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-11-02 14:14:36,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 14:14:36,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 14:14:36,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 14:14:36,989 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 14:14:36,991 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 14:14:36,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-02 14:14:37,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d57116b3/9071e0188fdf40ec9dd41312c4cafb21/FLAG41684636c [2021-11-02 14:14:37,844 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 14:14:37,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-02 14:14:37,887 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d57116b3/9071e0188fdf40ec9dd41312c4cafb21/FLAG41684636c [2021-11-02 14:14:38,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d57116b3/9071e0188fdf40ec9dd41312c4cafb21 [2021-11-02 14:14:38,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 14:14:38,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 14:14:38,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 14:14:38,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 14:14:38,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 14:14:38,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:14:38" (1/1) ... [2021-11-02 14:14:38,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac3a776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:38, skipping insertion in model container [2021-11-02 14:14:38,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 02:14:38" (1/1) ... [2021-11-02 14:14:38,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 14:14:38,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 14:14:40,378 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-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-02 14:14:40,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 14:14:40,463 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 14:14:40,793 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-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-02 14:14:40,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 14:14:40,901 INFO L208 MainTranslator]: Completed translation [2021-11-02 14:14:40,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40 WrapperNode [2021-11-02 14:14:40,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 14:14:40,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 14:14:40,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 14:14:40,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 14:14:40,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 14:14:41,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 14:14:41,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 14:14:41,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 14:14:41,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 14:14:41,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 14:14:41,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 14:14:41,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 14:14:41,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (1/1) ... [2021-11-02 14:14:41,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 14:14:41,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 14:14:41,966 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) [2021-11-02 14:14:41,991 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 [2021-11-02 14:14:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 14:14:42,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 14:14:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 14:14:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 14:14:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 14:14:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 14:14:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 14:14:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-02 14:14:42,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-02 14:14:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 14:14:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 14:14:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 14:14:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 14:14:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 14:14:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-11-02 14:14:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-11-02 14:14:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 14:14:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 14:14:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 14:14:42,931 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:42,964 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:42,969 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:42,971 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:42,984 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:43,015 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:43,033 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:43,036 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:43,067 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-02 14:14:49,192 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1046: assume false; [2021-11-02 14:14:49,193 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1047: assume !false; [2021-11-02 14:14:49,193 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##503: assume !false; [2021-11-02 14:14:49,193 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##502: assume false; [2021-11-02 14:14:49,193 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-02 14:14:49,194 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-02 14:14:49,194 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##589: assume false; [2021-11-02 14:14:49,194 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##590: assume !false; [2021-11-02 14:14:49,194 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##627: assume !false; [2021-11-02 14:14:49,194 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##626: assume false; [2021-11-02 14:14:49,194 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1663: assume false; [2021-11-02 14:14:49,195 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1664: assume !false; [2021-11-02 14:14:49,195 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1409: assume false; [2021-11-02 14:14:49,195 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1410: assume !false; [2021-11-02 14:14:49,195 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1462: assume false; [2021-11-02 14:14:49,195 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1463: assume !false; [2021-11-02 14:14:49,196 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##958: assume !false; [2021-11-02 14:14:49,196 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##957: assume false; [2021-11-02 14:14:49,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 14:14:49,213 INFO L299 CfgBuilder]: Removed 1773 assume(true) statements. [2021-11-02 14:14:49,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:14:49 BoogieIcfgContainer [2021-11-02 14:14:49,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 14:14:49,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 14:14:49,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 14:14:49,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 14:14:49,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 02:14:38" (1/3) ... [2021-11-02 14:14:49,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6490d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:14:49, skipping insertion in model container [2021-11-02 14:14:49,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 02:14:40" (2/3) ... [2021-11-02 14:14:49,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6490d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 02:14:49, skipping insertion in model container [2021-11-02 14:14:49,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 02:14:49" (3/3) ... [2021-11-02 14:14:49,227 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-02 14:14:49,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 14:14:49,235 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-02 14:14:49,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 14:14:49,295 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 [2021-11-02 14:14:49,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-02 14:14:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 1914 states, 1903 states have (on average 1.4009458749343142) internal successors, (2666), 1908 states have internal predecessors, (2666), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 14:14:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-02 14:14:49,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:14:49,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 14:14:49,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:14:49,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:14:49,365 INFO L85 PathProgramCache]: Analyzing trace with hash -86151642, now seen corresponding path program 1 times [2021-11-02 14:14:49,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:14:49,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795192536] [2021-11-02 14:14:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:14:49,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:14:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:14:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:14:50,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:14:50,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795192536] [2021-11-02 14:14:50,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795192536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:14:50,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:14:50,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 14:14:50,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80389930] [2021-11-02 14:14:50,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 14:14:50,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:14:50,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 14:14:50,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 14:14:50,106 INFO L87 Difference]: Start difference. First operand has 1914 states, 1903 states have (on average 1.4009458749343142) internal successors, (2666), 1908 states have internal predecessors, (2666), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:14:52,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:14:58,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:01,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:07,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:15:19,514 INFO L93 Difference]: Finished difference Result 5665 states and 7919 transitions. [2021-11-02 14:15:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 14:15:19,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-11-02 14:15:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:15:19,556 INFO L225 Difference]: With dead ends: 5665 [2021-11-02 14:15:19,557 INFO L226 Difference]: Without dead ends: 3734 [2021-11-02 14:15:19,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 14:15:19,578 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 2573 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 5139 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26326.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.94ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5139 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28537.07ms IncrementalHoareTripleChecker+Time [2021-11-02 14:15:19,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 25 Invalid, 5148 Unknown, 0 Unchecked, 69.94ms Time], IncrementalHoareTripleChecker [5 Valid, 5139 Invalid, 4 Unknown, 0 Unchecked, 28537.07ms Time] [2021-11-02 14:15:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2021-11-02 14:15:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3726. [2021-11-02 14:15:19,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3711 states have (on average 1.3637833468067906) internal successors, (5061), 3715 states have internal predecessors, (5061), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:15:19,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5073 transitions. [2021-11-02 14:15:19,757 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5073 transitions. Word has length 13 [2021-11-02 14:15:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:15:19,757 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 5073 transitions. [2021-11-02 14:15:19,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:15:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5073 transitions. [2021-11-02 14:15:19,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-02 14:15:19,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:15:19,771 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] [2021-11-02 14:15:19,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 14:15:19,772 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:15:19,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:15:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash 970211147, now seen corresponding path program 1 times [2021-11-02 14:15:19,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:15:19,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385862527] [2021-11-02 14:15:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:15:19,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:15:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:15:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:15:20,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:15:20,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385862527] [2021-11-02 14:15:20,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385862527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:15:20,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:15:20,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 14:15:20,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014140302] [2021-11-02 14:15:20,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 14:15:20,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:15:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 14:15:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 14:15:20,114 INFO L87 Difference]: Start difference. First operand 3726 states and 5073 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:15:22,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:34,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:36,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:40,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:47,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:15:57,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:15:57,062 INFO L93 Difference]: Finished difference Result 7398 states and 10078 transitions. [2021-11-02 14:15:57,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 14:15:57,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-11-02 14:15:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:15:57,079 INFO L225 Difference]: With dead ends: 7398 [2021-11-02 14:15:57,079 INFO L226 Difference]: Without dead ends: 3726 [2021-11-02 14:15:57,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.53ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 14:15:57,089 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 7735 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33527.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 7739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7735 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36446.91ms IncrementalHoareTripleChecker+Time [2021-11-02 14:15:57,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 7739 Unknown, 0 Unchecked, 61.75ms Time], IncrementalHoareTripleChecker [0 Valid, 7735 Invalid, 4 Unknown, 0 Unchecked, 36446.91ms Time] [2021-11-02 14:15:57,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2021-11-02 14:15:57,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3726. [2021-11-02 14:15:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3711 states have (on average 1.3635138776610078) internal successors, (5060), 3715 states have internal predecessors, (5060), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:15:57,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 5072 transitions. [2021-11-02 14:15:57,275 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 5072 transitions. Word has length 65 [2021-11-02 14:15:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:15:57,275 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 5072 transitions. [2021-11-02 14:15:57,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:15:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 5072 transitions. [2021-11-02 14:15:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-02 14:15:57,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:15:57,280 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] [2021-11-02 14:15:57,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 14:15:57,281 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:15:57,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:15:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1345747310, now seen corresponding path program 1 times [2021-11-02 14:15:57,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:15:57,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022606663] [2021-11-02 14:15:57,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:15:57,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:15:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:15:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:15:57,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:15:57,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022606663] [2021-11-02 14:15:57,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022606663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:15:57,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:15:57,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 14:15:57,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524679988] [2021-11-02 14:15:57,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 14:15:57,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:15:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 14:15:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 14:15:57,610 INFO L87 Difference]: Start difference. First operand 3726 states and 5072 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-11-02 14:15:59,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:16:17,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:16:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:16:31,949 INFO L93 Difference]: Finished difference Result 11026 states and 15028 transitions. [2021-11-02 14:16:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 14:16:31,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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 [2021-11-02 14:16:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:16:31,985 INFO L225 Difference]: With dead ends: 11026 [2021-11-02 14:16:31,985 INFO L226 Difference]: Without dead ends: 7356 [2021-11-02 14:16:31,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 14:16:32,003 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 2482 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 7540 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30537.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.18ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7540 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33692.42ms IncrementalHoareTripleChecker+Time [2021-11-02 14:16:32,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2483 Valid, 15 Invalid, 7546 Unknown, 0 Unchecked, 50.18ms Time], IncrementalHoareTripleChecker [4 Valid, 7540 Invalid, 2 Unknown, 0 Unchecked, 33692.42ms Time] [2021-11-02 14:16:32,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7356 states. [2021-11-02 14:16:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7356 to 3746. [2021-11-02 14:16:32,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3731 states have (on average 1.3637094612704368) internal successors, (5088), 3735 states have internal predecessors, (5088), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:16:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5100 transitions. [2021-11-02 14:16:32,152 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5100 transitions. Word has length 69 [2021-11-02 14:16:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:16:32,152 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 5100 transitions. [2021-11-02 14:16:32,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 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) [2021-11-02 14:16:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5100 transitions. [2021-11-02 14:16:32,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-02 14:16:32,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:16:32,156 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, 1, 1] [2021-11-02 14:16:32,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 14:16:32,157 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:16:32,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:16:32,158 INFO L85 PathProgramCache]: Analyzing trace with hash 875382655, now seen corresponding path program 1 times [2021-11-02 14:16:32,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:16:32,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674867596] [2021-11-02 14:16:32,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:16:32,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:16:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:16:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:16:32,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:16:32,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674867596] [2021-11-02 14:16:32,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674867596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:16:32,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:16:32,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 14:16:32,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225410367] [2021-11-02 14:16:32,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 14:16:32,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:16:32,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 14:16:32,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 14:16:32,810 INFO L87 Difference]: Start difference. First operand 3746 states and 5100 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:16:34,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:16:50,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:16:53,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:16:55,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:17:00,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:17:09,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:17:14,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:17:27,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:17:27,338 INFO L93 Difference]: Finished difference Result 7440 states and 10135 transitions. [2021-11-02 14:17:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 14:17:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-02 14:17:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:17:27,352 INFO L225 Difference]: With dead ends: 7440 [2021-11-02 14:17:27,353 INFO L226 Difference]: Without dead ends: 3746 [2021-11-02 14:17:27,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 112.24ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-02 14:17:27,361 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 7729 mSDsCounter, 0 mSdLazyCounter, 10304 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49229.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 10311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10304 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53983.47ms IncrementalHoareTripleChecker+Time [2021-11-02 14:17:27,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 10311 Unknown, 0 Unchecked, 87.24ms Time], IncrementalHoareTripleChecker [0 Valid, 10304 Invalid, 7 Unknown, 0 Unchecked, 53983.47ms Time] [2021-11-02 14:17:27,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2021-11-02 14:17:27,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3746. [2021-11-02 14:17:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3731 states have (on average 1.3634414366121683) internal successors, (5087), 3735 states have internal predecessors, (5087), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:17:27,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5099 transitions. [2021-11-02 14:17:27,466 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5099 transitions. Word has length 72 [2021-11-02 14:17:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:17:27,466 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 5099 transitions. [2021-11-02 14:17:27,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:17:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5099 transitions. [2021-11-02 14:17:27,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-02 14:17:27,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:17:27,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 14:17:27,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 14:17:27,470 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:17:27,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:17:27,470 INFO L85 PathProgramCache]: Analyzing trace with hash 174558702, now seen corresponding path program 1 times [2021-11-02 14:17:27,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:17:27,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224201996] [2021-11-02 14:17:27,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:17:27,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:17:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:17:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:17:27,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:17:27,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224201996] [2021-11-02 14:17:27,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224201996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:17:27,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:17:27,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 14:17:27,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152861620] [2021-11-02 14:17:27,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 14:17:27,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:17:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 14:17:27,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-02 14:17:27,929 INFO L87 Difference]: Start difference. First operand 3746 states and 5099 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:17:30,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:17:49,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:02,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:08,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:10,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:12,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:18:26,795 INFO L93 Difference]: Finished difference Result 7469 states and 10170 transitions. [2021-11-02 14:18:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 14:18:26,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-02 14:18:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:18:26,807 INFO L225 Difference]: With dead ends: 7469 [2021-11-02 14:18:26,807 INFO L226 Difference]: Without dead ends: 3746 [2021-11-02 14:18:26,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 190.58ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-02 14:18:26,814 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 10304 mSDsCounter, 0 mSdLazyCounter, 12881 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53128.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 12888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 77.66ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12881 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58299.34ms IncrementalHoareTripleChecker+Time [2021-11-02 14:18:26,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 30 Invalid, 12888 Unknown, 0 Unchecked, 77.66ms Time], IncrementalHoareTripleChecker [1 Valid, 12881 Invalid, 6 Unknown, 0 Unchecked, 58299.34ms Time] [2021-11-02 14:18:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2021-11-02 14:18:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3746. [2021-11-02 14:18:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3731 states have (on average 1.3631734119538998) internal successors, (5086), 3735 states have internal predecessors, (5086), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:18:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5098 transitions. [2021-11-02 14:18:26,894 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5098 transitions. Word has length 83 [2021-11-02 14:18:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:18:26,894 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 5098 transitions. [2021-11-02 14:18:26,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:18:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5098 transitions. [2021-11-02 14:18:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-02 14:18:26,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:18:26,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 14:18:26,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 14:18:26,898 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:18:26,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:18:26,898 INFO L85 PathProgramCache]: Analyzing trace with hash 309930551, now seen corresponding path program 1 times [2021-11-02 14:18:26,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:18:26,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364111638] [2021-11-02 14:18:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:18:26,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:18:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:18:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:18:27,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:18:27,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364111638] [2021-11-02 14:18:27,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364111638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:18:27,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:18:27,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 14:18:27,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055298930] [2021-11-02 14:18:27,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 14:18:27,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:18:27,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 14:18:27,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 14:18:27,145 INFO L87 Difference]: Start difference. First operand 3746 states and 5098 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:18:29,246 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 [] [2021-11-02 14:18:48,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:54,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:57,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:18:59,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:19:11,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:19:18,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:19:39,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:19:39,966 INFO L93 Difference]: Finished difference Result 18435 states and 25128 transitions. [2021-11-02 14:19:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 14:19:39,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-02 14:19:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:19:40,061 INFO L225 Difference]: With dead ends: 18435 [2021-11-02 14:19:40,061 INFO L226 Difference]: Without dead ends: 14740 [2021-11-02 14:19:40,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 14:19:40,070 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 10037 mSDsluCounter, 10121 mSDsCounter, 0 mSdLazyCounter, 15186 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63816.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10039 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.17ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15186 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71692.58ms IncrementalHoareTripleChecker+Time [2021-11-02 14:19:40,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10039 Valid, 26 Invalid, 15198 Unknown, 0 Unchecked, 105.17ms Time], IncrementalHoareTripleChecker [5 Valid, 15186 Invalid, 7 Unknown, 0 Unchecked, 71692.58ms Time] [2021-11-02 14:19:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14740 states. [2021-11-02 14:19:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14740 to 3748. [2021-11-02 14:19:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 3733 states have (on average 1.3629788373961962) internal successors, (5088), 3737 states have internal predecessors, (5088), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:19:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5100 transitions. [2021-11-02 14:19:40,228 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5100 transitions. Word has length 85 [2021-11-02 14:19:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:19:40,229 INFO L470 AbstractCegarLoop]: Abstraction has 3748 states and 5100 transitions. [2021-11-02 14:19:40,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:19:40,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5100 transitions. [2021-11-02 14:19:40,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-02 14:19:40,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:19:40,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 14:19:40,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 14:19:40,236 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:19:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:19:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash 302728500, now seen corresponding path program 1 times [2021-11-02 14:19:40,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:19:40,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840441737] [2021-11-02 14:19:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:19:40,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:19:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:19:40,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:19:40,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:19:40,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840441737] [2021-11-02 14:19:40,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840441737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:19:40,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:19:40,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 14:19:40,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282130710] [2021-11-02 14:19:40,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 14:19:40,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:19:40,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 14:19:40,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-02 14:19:40,715 INFO L87 Difference]: Start difference. First operand 3748 states and 5100 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:19:42,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:01,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:08,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:11,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:24,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:31,219 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:34,479 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:49,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:20:53,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:21:02,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:21:05,938 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:21:19,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 14:21:19,567 INFO L93 Difference]: Finished difference Result 17380 states and 23832 transitions. [2021-11-02 14:21:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 14:21:19,568 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2021-11-02 14:21:19,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 14:21:19,605 INFO L225 Difference]: With dead ends: 17380 [2021-11-02 14:21:19,606 INFO L226 Difference]: Without dead ends: 13640 [2021-11-02 14:21:19,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 290.34ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-02 14:21:19,619 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 11650 mSDsluCounter, 13957 mSDsCounter, 0 mSdLazyCounter, 19140 mSolverCounterSat, 90 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86483.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11651 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 19241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 172.06ms SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 19140 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97290.66ms IncrementalHoareTripleChecker+Time [2021-11-02 14:21:19,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11651 Valid, 44 Invalid, 19241 Unknown, 0 Unchecked, 172.06ms Time], IncrementalHoareTripleChecker [90 Valid, 19140 Invalid, 11 Unknown, 0 Unchecked, 97290.66ms Time] [2021-11-02 14:21:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13640 states. [2021-11-02 14:21:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13640 to 3748. [2021-11-02 14:21:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 3733 states have (on average 1.3627109563353872) internal successors, (5087), 3737 states have internal predecessors, (5087), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-02 14:21:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5099 transitions. [2021-11-02 14:21:19,817 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5099 transitions. Word has length 86 [2021-11-02 14:21:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 14:21:19,818 INFO L470 AbstractCegarLoop]: Abstraction has 3748 states and 5099 transitions. [2021-11-02 14:21:19,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:21:19,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5099 transitions. [2021-11-02 14:21:19,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-02 14:21:19,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 14:21:19,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 14:21:19,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 14:21:19,821 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-02 14:21:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 14:21:19,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1152728039, now seen corresponding path program 1 times [2021-11-02 14:21:19,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 14:21:19,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169187376] [2021-11-02 14:21:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 14:21:19,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 14:21:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 14:21:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 14:21:20,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 14:21:20,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169187376] [2021-11-02 14:21:20,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169187376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 14:21:20,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 14:21:20,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-02 14:21:20,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857946364] [2021-11-02 14:21:20,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 14:21:20,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 14:21:20,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 14:21:20,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-02 14:21:20,459 INFO L87 Difference]: Start difference. First operand 3748 states and 5099 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 14:21:23,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:21:53,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:21:58,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:00,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:05,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:08,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:11,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:14,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:18,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:21,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:24,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:28,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:39,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:46,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:48,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:51,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:57,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:22:59,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:04,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:07,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:13,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:16,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:18,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:21,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:23,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:26,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:29,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:31,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:34,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:36,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:39,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:41,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:43,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:46,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:49,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:52,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:55,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:23:58,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:01,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:03,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:07,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:09,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:13,063 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:15,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:18,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:21,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:23,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:26,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:29,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:32,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:34,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:37,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:39,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:42,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:44,481 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:47,472 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:49,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:24:52,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:07,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:31,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:34,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:38,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:40,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:42,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:47,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:49,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:51,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:53,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:56,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:25:58,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:00,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:03,505 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:06,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:09,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:11,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:13,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:16,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:18,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:21,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:23,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:25,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:28,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:30,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:32,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:35,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:38,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:40,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:42,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:45,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:48,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:50,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:52,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:55,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:57,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:26:59,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:02,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:05,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:07,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:10,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:12,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:14,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:16,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:18,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:21,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:23,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:26,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:28,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:30,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:33,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:36,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:38,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:40,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:43,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:45,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:48,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:51,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:54,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:27:58,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:28:00,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 14:28:04,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-02 14:28:06,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Killed by 15