./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.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 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:33:42,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:33:42,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:33:42,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:33:42,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:33:42,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:33:42,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:33:42,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:33:42,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:33:42,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:33:42,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:33:42,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:33:42,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:33:42,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:33:42,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:33:42,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:33:42,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:33:42,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:33:42,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:33:42,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:33:42,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:33:42,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:33:42,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:33:42,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:33:42,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:33:42,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:33:42,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:33:42,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:33:42,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:33:42,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:33:42,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:33:42,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:33:42,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:33:42,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:33:42,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:33:42,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:33:42,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:33:42,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:33:42,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:33:42,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:33:42,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:33:42,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:33:43,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:33:43,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:33:43,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:33:43,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:33:43,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:33:43,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:33:43,009 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:33:43,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:33:43,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:33:43,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:33:43,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:33:43,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:33:43,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:33:43,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:33:43,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:33:43,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:33:43,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:33:43,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:33:43,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:33:43,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:33:43,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:33:43,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:33:43,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:33:43,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:33:43,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:33:43,013 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:33:43,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:33:43,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:33:43,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:33:43,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 [2021-11-07 10:33:43,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:33:43,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:33:43,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:33:43,256 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:33:43,257 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:33:43,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-11-07 10:33:43,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00ac139a/fffcc3fca27941108057b4957f3ccb29/FLAGb3a4078cf [2021-11-07 10:33:44,007 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:33:44,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-11-07 10:33:44,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00ac139a/fffcc3fca27941108057b4957f3ccb29/FLAGb3a4078cf [2021-11-07 10:33:44,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c00ac139a/fffcc3fca27941108057b4957f3ccb29 [2021-11-07 10:33:44,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:33:44,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:33:44,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:33:44,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:33:44,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:33:44,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:33:44" (1/1) ... [2021-11-07 10:33:44,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e2de2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:44, skipping insertion in model container [2021-11-07 10:33:44,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:33:44" (1/1) ... [2021-11-07 10:33:44,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:33:44,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:33:45,256 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/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i[223543,223556] [2021-11-07 10:33:45,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:33:45,320 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:33:45,650 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/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i[223543,223556] [2021-11-07 10:33:45,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:33:45,754 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:33:45,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45 WrapperNode [2021-11-07 10:33:45,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:33:45,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:33:45,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:33:45,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:33:45,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:45,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:33:46,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:33:46,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:33:46,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:33:46,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:33:46,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:33:46,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:33:46,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:33:46,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (1/1) ... [2021-11-07 10:33:46,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:33:46,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:33:46,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 10:33:46,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 10:33:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 10:33:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 10:33:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 10:33:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:33:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:33:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:33:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:33:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 10:33:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:33:46,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:33:47,351 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,401 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,410 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,414 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,417 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,421 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,428 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,433 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,436 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,471 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,473 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,478 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,502 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,506 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,513 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:47,541 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:33:59,534 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2506: assume !false; [2021-11-07 10:33:59,536 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2505: assume false; [2021-11-07 10:33:59,536 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1145: assume false; [2021-11-07 10:33:59,536 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1146: assume !false; [2021-11-07 10:33:59,536 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2391: assume false; [2021-11-07 10:33:59,537 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2392: assume !false; [2021-11-07 10:33:59,537 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1031: assume false; [2021-11-07 10:33:59,537 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1032: assume !false; [2021-11-07 10:33:59,537 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2247: assume !false; [2021-11-07 10:33:59,537 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2246: assume false; [2021-11-07 10:33:59,537 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##60: assume !false; [2021-11-07 10:33:59,538 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##59: assume false; [2021-11-07 10:33:59,538 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume !false; [2021-11-07 10:33:59,538 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##227: assume false; [2021-11-07 10:33:59,538 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##352: assume !false; [2021-11-07 10:33:59,539 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##351: assume false; [2021-11-07 10:33:59,539 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1870: assume false; [2021-11-07 10:33:59,539 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1871: assume !false; [2021-11-07 10:33:59,539 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1857: assume false; [2021-11-07 10:33:59,539 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1858: assume !false; [2021-11-07 10:33:59,539 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##467: assume false; [2021-11-07 10:33:59,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##468: assume !false; [2021-11-07 10:33:59,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##554: assume !false; [2021-11-07 10:33:59,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##553: assume false; [2021-11-07 10:33:59,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2120: assume !false; [2021-11-07 10:33:59,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2119: assume false; [2021-11-07 10:33:59,540 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##689: assume !false; [2021-11-07 10:33:59,541 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##688: assume false; [2021-11-07 10:33:59,541 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2005: assume false; [2021-11-07 10:33:59,541 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2006: assume !false; [2021-11-07 10:33:59,542 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##884: assume !false; [2021-11-07 10:33:59,542 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##883: assume false; [2021-11-07 10:33:59,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:33:59,564 INFO L299 CfgBuilder]: Removed 1624 assume(true) statements. [2021-11-07 10:33:59,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:33:59 BoogieIcfgContainer [2021-11-07 10:33:59,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:33:59,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:33:59,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:33:59,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:33:59,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:33:44" (1/3) ... [2021-11-07 10:33:59,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128747bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:33:59, skipping insertion in model container [2021-11-07 10:33:59,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:33:45" (2/3) ... [2021-11-07 10:33:59,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128747bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:33:59, skipping insertion in model container [2021-11-07 10:33:59,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:33:59" (3/3) ... [2021-11-07 10:33:59,577 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-11-07 10:33:59,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:33:59,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-07 10:33:59,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:33:59,649 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 10:33:59,649 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-07 10:33:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 1968 states, 1959 states have (on average 1.5630423685553854) internal successors, (3062), 1967 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:33:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 10:33:59,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:33:59,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:33:59,707 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:33:59,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:33:59,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1414136188, now seen corresponding path program 1 times [2021-11-07 10:33:59,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:33:59,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060662630] [2021-11-07 10:33:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:33:59,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:00,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:00,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060662630] [2021-11-07 10:34:00,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060662630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:00,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:00,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:34:00,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888542452] [2021-11-07 10:34:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:00,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:34:00,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:00,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:34:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:34:00,461 INFO L87 Difference]: Start difference. First operand has 1968 states, 1959 states have (on average 1.5630423685553854) internal successors, (3062), 1967 states have internal predecessors, (3062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:00,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:00,816 INFO L93 Difference]: Finished difference Result 5827 states and 9101 transitions. [2021-11-07 10:34:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:34:00,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-11-07 10:34:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:00,851 INFO L225 Difference]: With dead ends: 5827 [2021-11-07 10:34:00,852 INFO L226 Difference]: Without dead ends: 3858 [2021-11-07 10:34:00,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:34:00,867 INFO L933 BasicCegarLoop]: 2645 mSDtfsCounter, 2530 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 5152 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.41ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.65ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:00,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 5152 Invalid, 43 Unknown, 0 Unchecked, 24.41ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 92.65ms Time] [2021-11-07 10:34:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-11-07 10:34:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3846. [2021-11-07 10:34:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3838 states have (on average 1.3129233976029182) internal successors, (5039), 3845 states have internal predecessors, (5039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 5039 transitions. [2021-11-07 10:34:01,055 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 5039 transitions. Word has length 10 [2021-11-07 10:34:01,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:01,058 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 5039 transitions. [2021-11-07 10:34:01,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 5039 transitions. [2021-11-07 10:34:01,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 10:34:01,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:01,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:01,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:34:01,061 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:01,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:01,067 INFO L85 PathProgramCache]: Analyzing trace with hash -888542125, now seen corresponding path program 1 times [2021-11-07 10:34:01,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:01,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337512083] [2021-11-07 10:34:01,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:01,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:01,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:01,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337512083] [2021-11-07 10:34:01,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337512083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:01,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:01,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:34:01,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158614292] [2021-11-07 10:34:01,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:01,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:34:01,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:01,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:34:01,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:34:01,274 INFO L87 Difference]: Start difference. First operand 3846 states and 5039 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:01,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:01,339 INFO L93 Difference]: Finished difference Result 3846 states and 5039 transitions. [2021-11-07 10:34:01,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:34:01,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2021-11-07 10:34:01,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:01,352 INFO L225 Difference]: With dead ends: 3846 [2021-11-07 10:34:01,352 INFO L226 Difference]: Without dead ends: 3839 [2021-11-07 10:34:01,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:34:01,355 INFO L933 BasicCegarLoop]: 2538 mSDtfsCounter, 2529 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:01,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2529 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 5.98ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:34:01,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2021-11-07 10:34:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3839. [2021-11-07 10:34:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3839 states, 3832 states have (on average 1.312108559498956) internal successors, (5028), 3838 states have internal predecessors, (5028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:01,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 5028 transitions. [2021-11-07 10:34:01,454 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 5028 transitions. Word has length 11 [2021-11-07 10:34:01,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:01,454 INFO L470 AbstractCegarLoop]: Abstraction has 3839 states and 5028 transitions. [2021-11-07 10:34:01,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 5028 transitions. [2021-11-07 10:34:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 10:34:01,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:01,460 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] [2021-11-07 10:34:01,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:34:01,461 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:01,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:01,462 INFO L85 PathProgramCache]: Analyzing trace with hash -694806309, now seen corresponding path program 1 times [2021-11-07 10:34:01,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:01,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670505097] [2021-11-07 10:34:01,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:01,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:01,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:01,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670505097] [2021-11-07 10:34:01,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670505097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:01,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:01,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:34:01,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810703153] [2021-11-07 10:34:01,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:01,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:34:01,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:34:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:34:01,719 INFO L87 Difference]: Start difference. First operand 3839 states and 5028 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:01,983 INFO L93 Difference]: Finished difference Result 9651 states and 12641 transitions. [2021-11-07 10:34:01,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:34:01,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2021-11-07 10:34:01,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:02,005 INFO L225 Difference]: With dead ends: 9651 [2021-11-07 10:34:02,005 INFO L226 Difference]: Without dead ends: 5826 [2021-11-07 10:34:02,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:34:02,016 INFO L933 BasicCegarLoop]: 2531 mSDtfsCounter, 1975 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.30ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.38ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:02,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 4374 Invalid, 20 Unknown, 0 Unchecked, 7.30ms Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 31.38ms Time] [2021-11-07 10:34:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2021-11-07 10:34:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 5814. [2021-11-07 10:34:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 5807 states have (on average 1.3110039607370414) internal successors, (7613), 5813 states have internal predecessors, (7613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 7613 transitions. [2021-11-07 10:34:02,184 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 7613 transitions. Word has length 55 [2021-11-07 10:34:02,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:02,184 INFO L470 AbstractCegarLoop]: Abstraction has 5814 states and 7613 transitions. [2021-11-07 10:34:02,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 7613 transitions. [2021-11-07 10:34:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 10:34:02,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:02,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:02,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:34:02,191 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:02,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash 761018767, now seen corresponding path program 1 times [2021-11-07 10:34:02,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:02,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128065488] [2021-11-07 10:34:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:02,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:02,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:02,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:02,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128065488] [2021-11-07 10:34:02,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128065488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:02,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:02,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:34:02,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574985392] [2021-11-07 10:34:02,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:02,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:34:02,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:02,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:34:02,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:34:02,495 INFO L87 Difference]: Start difference. First operand 5814 states and 7613 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:04,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:04,194 INFO L93 Difference]: Finished difference Result 46542 states and 61225 transitions. [2021-11-07 10:34:04,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:34:04,195 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 10:34:04,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:04,406 INFO L225 Difference]: With dead ends: 46542 [2021-11-07 10:34:04,407 INFO L226 Difference]: Without dead ends: 40743 [2021-11-07 10:34:04,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 88.07ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:34:04,447 INFO L933 BasicCegarLoop]: 4547 mSDtfsCounter, 24505 mSDsluCounter, 30211 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 313.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24505 SdHoareTripleChecker+Valid, 34758 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.54ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 378.81ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:04,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24505 Valid, 34758 Invalid, 434 Unknown, 0 Unchecked, 76.54ms Time], IncrementalHoareTripleChecker [64 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 378.81ms Time] [2021-11-07 10:34:04,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40743 states. [2021-11-07 10:34:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40743 to 5838. [2021-11-07 10:34:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5831 states have (on average 1.3097238895558223) internal successors, (7637), 5837 states have internal predecessors, (7637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 7637 transitions. [2021-11-07 10:34:05,119 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 7637 transitions. Word has length 70 [2021-11-07 10:34:05,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:05,119 INFO L470 AbstractCegarLoop]: Abstraction has 5838 states and 7637 transitions. [2021-11-07 10:34:05,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 7637 transitions. [2021-11-07 10:34:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 10:34:05,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:05,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:05,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 10:34:05,125 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:05,127 INFO L85 PathProgramCache]: Analyzing trace with hash 279938509, now seen corresponding path program 1 times [2021-11-07 10:34:05,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:05,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173810815] [2021-11-07 10:34:05,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:05,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:05,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:05,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173810815] [2021-11-07 10:34:05,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173810815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:05,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:05,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:34:05,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505651173] [2021-11-07 10:34:05,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:05,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:34:05,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:05,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:34:05,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:34:05,409 INFO L87 Difference]: Start difference. First operand 5838 states and 7637 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:07,655 INFO L93 Difference]: Finished difference Result 46506 states and 61153 transitions. [2021-11-07 10:34:07,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:34:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 10:34:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:07,750 INFO L225 Difference]: With dead ends: 46506 [2021-11-07 10:34:07,751 INFO L226 Difference]: Without dead ends: 40683 [2021-11-07 10:34:07,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 88.09ms TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:34:07,778 INFO L933 BasicCegarLoop]: 6624 mSDtfsCounter, 18161 mSDsluCounter, 30452 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 373.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18161 SdHoareTripleChecker+Valid, 37076 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.82ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 453.36ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:07,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18161 Valid, 37076 Invalid, 456 Unknown, 0 Unchecked, 41.82ms Time], IncrementalHoareTripleChecker [64 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 453.36ms Time] [2021-11-07 10:34:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40683 states. [2021-11-07 10:34:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40683 to 5862. [2021-11-07 10:34:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5855 states have (on average 1.3084543125533732) internal successors, (7661), 5861 states have internal predecessors, (7661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 7661 transitions. [2021-11-07 10:34:08,527 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 7661 transitions. Word has length 70 [2021-11-07 10:34:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:08,528 INFO L470 AbstractCegarLoop]: Abstraction has 5862 states and 7661 transitions. [2021-11-07 10:34:08,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 7661 transitions. [2021-11-07 10:34:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 10:34:08,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:08,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:08,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 10:34:08,532 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:08,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:08,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1173424847, now seen corresponding path program 1 times [2021-11-07 10:34:08,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:08,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087435610] [2021-11-07 10:34:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:08,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:08,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:08,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087435610] [2021-11-07 10:34:08,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087435610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:08,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:08,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:34:08,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139894700] [2021-11-07 10:34:08,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:08,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:34:08,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:08,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:34:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:34:08,774 INFO L87 Difference]: Start difference. First operand 5862 states and 7661 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:09,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:09,850 INFO L93 Difference]: Finished difference Result 22089 states and 28950 transitions. [2021-11-07 10:34:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:34:09,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 10:34:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:09,883 INFO L225 Difference]: With dead ends: 22089 [2021-11-07 10:34:09,884 INFO L226 Difference]: Without dead ends: 16242 [2021-11-07 10:34:09,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.45ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:34:09,900 INFO L933 BasicCegarLoop]: 6726 mSDtfsCounter, 4494 mSDsluCounter, 9224 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4494 SdHoareTripleChecker+Valid, 15950 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.01ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86.52ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:09,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4494 Valid, 15950 Invalid, 65 Unknown, 0 Unchecked, 15.01ms Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 86.52ms Time] [2021-11-07 10:34:09,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16242 states. [2021-11-07 10:34:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16242 to 6492. [2021-11-07 10:34:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6492 states, 6485 states have (on average 1.2988434849653046) internal successors, (8423), 6491 states have internal predecessors, (8423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:10,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6492 states to 6492 states and 8423 transitions. [2021-11-07 10:34:10,422 INFO L78 Accepts]: Start accepts. Automaton has 6492 states and 8423 transitions. Word has length 70 [2021-11-07 10:34:10,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:10,423 INFO L470 AbstractCegarLoop]: Abstraction has 6492 states and 8423 transitions. [2021-11-07 10:34:10,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6492 states and 8423 transitions. [2021-11-07 10:34:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-07 10:34:10,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:10,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:10,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 10:34:10,427 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash -633292561, now seen corresponding path program 1 times [2021-11-07 10:34:10,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:10,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607723521] [2021-11-07 10:34:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:10,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:10,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:10,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607723521] [2021-11-07 10:34:10,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607723521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:10,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:10,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:34:10,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347743610] [2021-11-07 10:34:10,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:10,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:34:10,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:10,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:34:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:10,874 INFO L87 Difference]: Start difference. First operand 6492 states and 8423 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:12,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:34:15,048 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 [] [2021-11-07 10:34:18,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:18,467 INFO L93 Difference]: Finished difference Result 8969 states and 11688 transitions. [2021-11-07 10:34:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:34:18,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-07 10:34:18,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:18,472 INFO L225 Difference]: With dead ends: 8969 [2021-11-07 10:34:18,472 INFO L226 Difference]: Without dead ends: 2492 [2021-11-07 10:34:18,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.54ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:34:18,478 INFO L933 BasicCegarLoop]: 2136 mSDtfsCounter, 9 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6796.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7730 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.34ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7302.58ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:18,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 7730 Invalid, 848 Unknown, 0 Unchecked, 11.34ms Time], IncrementalHoareTripleChecker [6 Valid, 840 Invalid, 2 Unknown, 0 Unchecked, 7302.58ms Time] [2021-11-07 10:34:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2021-11-07 10:34:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2486. [2021-11-07 10:34:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2486 states, 2484 states have (on average 1.318035426731079) internal successors, (3274), 2485 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:18,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2486 states to 2486 states and 3274 transitions. [2021-11-07 10:34:18,636 INFO L78 Accepts]: Start accepts. Automaton has 2486 states and 3274 transitions. Word has length 70 [2021-11-07 10:34:18,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:18,636 INFO L470 AbstractCegarLoop]: Abstraction has 2486 states and 3274 transitions. [2021-11-07 10:34:18,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2486 states and 3274 transitions. [2021-11-07 10:34:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 10:34:18,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:18,640 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:18,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 10:34:18,641 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:18,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1099507130, now seen corresponding path program 1 times [2021-11-07 10:34:18,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:18,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116978256] [2021-11-07 10:34:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:18,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:18,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:18,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116978256] [2021-11-07 10:34:18,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116978256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:18,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:18,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:34:18,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484848529] [2021-11-07 10:34:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:18,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:34:18,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:34:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:34:18,828 INFO L87 Difference]: Start difference. First operand 2486 states and 3274 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:21,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:21,249 INFO L93 Difference]: Finished difference Result 5223 states and 6882 transitions. [2021-11-07 10:34:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:34:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-07 10:34:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:21,263 INFO L225 Difference]: With dead ends: 5223 [2021-11-07 10:34:21,263 INFO L226 Difference]: Without dead ends: 2752 [2021-11-07 10:34:21,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:21,267 INFO L933 BasicCegarLoop]: 2102 mSDtfsCounter, 327 mSDsluCounter, 3827 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2056.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.03ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2219.90ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:21,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 5929 Invalid, 504 Unknown, 0 Unchecked, 6.03ms Time], IncrementalHoareTripleChecker [1 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2219.90ms Time] [2021-11-07 10:34:21,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-11-07 10:34:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2680. [2021-11-07 10:34:21,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2678 states have (on average 1.3174010455563854) internal successors, (3528), 2679 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:21,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 3528 transitions. [2021-11-07 10:34:21,442 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 3528 transitions. Word has length 84 [2021-11-07 10:34:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:21,442 INFO L470 AbstractCegarLoop]: Abstraction has 2680 states and 3528 transitions. [2021-11-07 10:34:21,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 3528 transitions. [2021-11-07 10:34:21,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 10:34:21,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:21,448 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:21,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 10:34:21,448 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:21,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:21,449 INFO L85 PathProgramCache]: Analyzing trace with hash 367539704, now seen corresponding path program 1 times [2021-11-07 10:34:21,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:21,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175963027] [2021-11-07 10:34:21,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:21,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:21,638 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:21,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:21,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175963027] [2021-11-07 10:34:21,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175963027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:21,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:21,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:34:21,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121441221] [2021-11-07 10:34:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:21,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:34:21,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:34:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:21,642 INFO L87 Difference]: Start difference. First operand 2680 states and 3528 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:22,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:22,606 INFO L93 Difference]: Finished difference Result 11550 states and 15192 transitions. [2021-11-07 10:34:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:34:22,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-07 10:34:22,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:22,622 INFO L225 Difference]: With dead ends: 11550 [2021-11-07 10:34:22,623 INFO L226 Difference]: Without dead ends: 9079 [2021-11-07 10:34:22,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.23ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:34:22,630 INFO L933 BasicCegarLoop]: 5051 mSDtfsCounter, 7979 mSDsluCounter, 10317 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 15368 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.24ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.96ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:22,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7979 Valid, 15368 Invalid, 34 Unknown, 0 Unchecked, 19.24ms Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 49.96ms Time] [2021-11-07 10:34:22,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9079 states. [2021-11-07 10:34:22,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9079 to 2684. [2021-11-07 10:34:22,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 2682 states have (on average 1.3169276659209546) internal successors, (3532), 2683 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3532 transitions. [2021-11-07 10:34:22,898 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3532 transitions. Word has length 84 [2021-11-07 10:34:22,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:22,899 INFO L470 AbstractCegarLoop]: Abstraction has 2684 states and 3532 transitions. [2021-11-07 10:34:22,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3532 transitions. [2021-11-07 10:34:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 10:34:22,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:22,904 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:22,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 10:34:22,904 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:22,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:22,905 INFO L85 PathProgramCache]: Analyzing trace with hash 293074773, now seen corresponding path program 1 times [2021-11-07 10:34:22,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:22,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147357800] [2021-11-07 10:34:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:22,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:23,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:23,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147357800] [2021-11-07 10:34:23,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147357800] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:34:23,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137055315] [2021-11-07 10:34:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:23,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:34:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:34:23,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:34:23,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 10:34:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:24,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:34:24,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:34:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:24,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:34:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:34:24,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137055315] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:34:24,590 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 10:34:24,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2021-11-07 10:34:24,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009274851] [2021-11-07 10:34:24,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 10:34:24,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:34:24,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:34:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:24,593 INFO L87 Difference]: Start difference. First operand 2684 states and 3532 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:25,009 INFO L93 Difference]: Finished difference Result 6855 states and 9030 transitions. [2021-11-07 10:34:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:34:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 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 [2021-11-07 10:34:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:25,018 INFO L225 Difference]: With dead ends: 6855 [2021-11-07 10:34:25,018 INFO L226 Difference]: Without dead ends: 4380 [2021-11-07 10:34:25,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.75ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:25,025 INFO L933 BasicCegarLoop]: 2137 mSDtfsCounter, 5977 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5977 SdHoareTripleChecker+Valid, 7147 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.23ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.85ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:25,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5977 Valid, 7147 Invalid, 41 Unknown, 0 Unchecked, 8.23ms Time], IncrementalHoareTripleChecker [9 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 37.85ms Time] [2021-11-07 10:34:25,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2021-11-07 10:34:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4380. [2021-11-07 10:34:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4380 states, 4378 states have (on average 1.3172681589767017) internal successors, (5767), 4379 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4380 states to 4380 states and 5767 transitions. [2021-11-07 10:34:25,431 INFO L78 Accepts]: Start accepts. Automaton has 4380 states and 5767 transitions. Word has length 86 [2021-11-07 10:34:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:25,432 INFO L470 AbstractCegarLoop]: Abstraction has 4380 states and 5767 transitions. [2021-11-07 10:34:25,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4380 states and 5767 transitions. [2021-11-07 10:34:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-07 10:34:25,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:25,457 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:25,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 10:34:25,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 10:34:25,680 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:25,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:25,680 INFO L85 PathProgramCache]: Analyzing trace with hash -259041133, now seen corresponding path program 1 times [2021-11-07 10:34:25,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:25,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214172381] [2021-11-07 10:34:25,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:25,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:26,075 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 10:34:26,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:26,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214172381] [2021-11-07 10:34:26,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214172381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:26,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:26,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:34:26,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993768211] [2021-11-07 10:34:26,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:26,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:34:26,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:26,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:34:26,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:34:26,078 INFO L87 Difference]: Start difference. First operand 4380 states and 5767 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:27,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:27,463 INFO L93 Difference]: Finished difference Result 20784 states and 27429 transitions. [2021-11-07 10:34:27,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:34:27,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 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 167 [2021-11-07 10:34:27,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:27,481 INFO L225 Difference]: With dead ends: 20784 [2021-11-07 10:34:27,481 INFO L226 Difference]: Without dead ends: 16613 [2021-11-07 10:34:27,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:27,486 INFO L933 BasicCegarLoop]: 6213 mSDtfsCounter, 6083 mSDsluCounter, 8341 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6083 SdHoareTripleChecker+Valid, 14554 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.36ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.28ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:27,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6083 Valid, 14554 Invalid, 26 Unknown, 0 Unchecked, 14.36ms Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 39.28ms Time] [2021-11-07 10:34:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16613 states. [2021-11-07 10:34:27,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16613 to 4382. [2021-11-07 10:34:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4380 states have (on average 1.3171232876712329) internal successors, (5769), 4381 states have internal predecessors, (5769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 5769 transitions. [2021-11-07 10:34:27,838 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 5769 transitions. Word has length 167 [2021-11-07 10:34:27,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:27,839 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 5769 transitions. [2021-11-07 10:34:27,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:27,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 5769 transitions. [2021-11-07 10:34:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-07 10:34:27,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:34:27,848 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:34:27,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 10:34:27,848 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-07 10:34:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:34:27,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1160822693, now seen corresponding path program 1 times [2021-11-07 10:34:27,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:34:27,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098293145] [2021-11-07 10:34:27,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:34:27,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:34:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:34:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 10:34:28,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:34:28,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098293145] [2021-11-07 10:34:28,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098293145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:34:28,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:34:28,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:34:28,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576771933] [2021-11-07 10:34:28,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:34:28,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:34:28,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:34:28,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:34:28,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:34:28,229 INFO L87 Difference]: Start difference. First operand 4382 states and 5769 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:29,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:34:29,669 INFO L93 Difference]: Finished difference Result 20558 states and 27136 transitions. [2021-11-07 10:34:29,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:34:29,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 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 176 [2021-11-07 10:34:29,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:34:29,670 INFO L225 Difference]: With dead ends: 20558 [2021-11-07 10:34:29,670 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 10:34:29,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:34:29,686 INFO L933 BasicCegarLoop]: 6164 mSDtfsCounter, 6082 mSDsluCounter, 8233 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6082 SdHoareTripleChecker+Valid, 14397 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.97ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.31ms IncrementalHoareTripleChecker+Time [2021-11-07 10:34:29,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6082 Valid, 14397 Invalid, 25 Unknown, 0 Unchecked, 12.97ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 35.31ms Time] [2021-11-07 10:34:29,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 10:34:29,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 10:34:29,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 10:34:29,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2021-11-07 10:34:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:34:29,688 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 10:34:29,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:34:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 10:34:29,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 10:34:29,690 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2021-11-07 10:34:29,690 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2021-11-07 10:34:29,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2021-11-07 10:34:29,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2021-11-07 10:34:29,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2021-11-07 10:34:29,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2021-11-07 10:34:29,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2021-11-07 10:34:29,691 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2021-11-07 10:34:29,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 10:34:29,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 10:34:42,121 WARN L227 SmtUtils]: Spent 9.83s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:34:51,704 WARN L227 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:35:01,403 WARN L227 SmtUtils]: Spent 9.70s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:35:12,481 WARN L227 SmtUtils]: Spent 9.80s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:35:22,196 WARN L227 SmtUtils]: Spent 9.71s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:35:34,319 WARN L227 SmtUtils]: Spent 9.62s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:35:43,943 WARN L227 SmtUtils]: Spent 9.62s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:35:55,789 WARN L227 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:36:06,654 WARN L227 SmtUtils]: Spent 9.65s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:36:18,456 WARN L227 SmtUtils]: Spent 9.52s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:36:33,734 WARN L227 SmtUtils]: Spent 9.45s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:36:43,445 WARN L227 SmtUtils]: Spent 9.71s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:36:56,890 WARN L227 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:37:06,616 WARN L227 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:37:16,271 WARN L227 SmtUtils]: Spent 9.65s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:37:25,712 WARN L227 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:37:40,029 WARN L227 SmtUtils]: Spent 9.76s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:37:52,221 WARN L227 SmtUtils]: Spent 9.88s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:38:05,589 WARN L227 SmtUtils]: Spent 9.55s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:38:15,187 WARN L227 SmtUtils]: Spent 9.60s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:38:24,609 WARN L227 SmtUtils]: Spent 9.42s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:38:34,018 WARN L227 SmtUtils]: Spent 9.41s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:38:44,723 WARN L227 SmtUtils]: Spent 9.49s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:38:54,126 WARN L227 SmtUtils]: Spent 9.40s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:39:03,544 WARN L227 SmtUtils]: Spent 9.42s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:39:12,925 WARN L227 SmtUtils]: Spent 9.38s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:39:25,120 WARN L227 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:39:39,042 WARN L227 SmtUtils]: Spent 9.43s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:39:52,107 WARN L227 SmtUtils]: Spent 9.59s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:40:01,670 WARN L227 SmtUtils]: Spent 9.56s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:40:13,624 WARN L227 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:40:26,986 WARN L227 SmtUtils]: Spent 9.64s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:40:37,850 WARN L227 SmtUtils]: Spent 9.62s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:40:48,218 WARN L227 SmtUtils]: Spent 9.86s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:40:57,988 WARN L227 SmtUtils]: Spent 9.77s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:41:10,212 WARN L227 SmtUtils]: Spent 9.78s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:41:21,984 WARN L227 SmtUtils]: Spent 9.53s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:41:32,745 WARN L227 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:41:42,584 WARN L227 SmtUtils]: Spent 9.84s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:41:52,127 WARN L227 SmtUtils]: Spent 9.54s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:42:06,710 WARN L227 SmtUtils]: Spent 12.11s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:42:20,360 WARN L227 SmtUtils]: Spent 12.37s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:42:32,259 WARN L227 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:42:41,911 WARN L227 SmtUtils]: Spent 9.65s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:42:54,362 WARN L227 SmtUtils]: Spent 10.00s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:43:04,175 WARN L227 SmtUtils]: Spent 9.81s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:43:13,937 WARN L227 SmtUtils]: Spent 9.76s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:43:25,942 WARN L227 SmtUtils]: Spent 9.71s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:43:35,525 WARN L227 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:43:45,106 WARN L227 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:43:55,987 WARN L227 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:44:05,573 WARN L227 SmtUtils]: Spent 9.59s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:44:15,214 WARN L227 SmtUtils]: Spent 9.64s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:44:24,865 WARN L227 SmtUtils]: Spent 9.65s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:44:35,762 WARN L227 SmtUtils]: Spent 9.61s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:44:45,449 WARN L227 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:44:55,100 WARN L227 SmtUtils]: Spent 9.65s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:45:07,066 WARN L227 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:45:17,789 WARN L227 SmtUtils]: Spent 9.48s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:45:29,660 WARN L227 SmtUtils]: Spent 9.47s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:45:39,326 WARN L227 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:45:48,926 WARN L227 SmtUtils]: Spent 9.60s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:45:58,524 WARN L227 SmtUtils]: Spent 9.60s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:46:08,167 WARN L227 SmtUtils]: Spent 9.63s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:46:17,766 WARN L227 SmtUtils]: Spent 9.60s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:46:32,087 WARN L227 SmtUtils]: Spent 9.53s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:46:41,655 WARN L227 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:46:51,318 WARN L227 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:47:01,062 WARN L227 SmtUtils]: Spent 9.74s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:47:10,733 WARN L227 SmtUtils]: Spent 9.67s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:47:21,582 WARN L227 SmtUtils]: Spent 9.64s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:47:33,274 WARN L227 SmtUtils]: Spent 9.46s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:47:46,400 WARN L227 SmtUtils]: Spent 9.64s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-07 10:47:58,060 WARN L227 SmtUtils]: Spent 9.43s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Killed by 15