./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:22:54,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:22:54,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:22:54,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:22:54,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:22:54,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:22:54,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:22:54,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:22:54,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:22:54,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:22:54,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:22:54,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:22:54,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:22:54,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:22:54,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:22:54,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:22:54,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:22:54,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:22:54,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:22:54,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:22:54,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:22:54,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:22:54,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:22:54,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:22:54,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:22:54,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:22:54,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:22:54,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:22:54,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:22:54,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:22:54,672 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:22:54,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:22:54,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:22:54,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:22:54,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:22:54,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:22:54,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:22:54,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:22:54,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:22:54,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:22:54,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:22:54,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:22:54,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:22:54,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:22:54,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:22:54,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:22:54,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:22:54,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:22:54,716 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:22:54,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:22:54,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:22:54,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:22:54,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:22:54,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:22:54,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:22:54,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:22:54,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:22:54,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:22:54,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:22:54,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:22:54,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:22:54,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:22:54,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:22:54,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:22:54,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:22:54,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:22:54,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:22:54,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:22:54,720 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:22:54,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:22:54,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:22:54,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2021-11-07 10:22:54,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:22:54,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:22:54,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:22:54,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:22:54,980 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:22:54,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-07 10:22:55,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868a079e4/d0aa45989d264cc8a11ff779ffa2779d/FLAG743968247 [2021-11-07 10:22:55,788 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:22:55,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-07 10:22:55,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868a079e4/d0aa45989d264cc8a11ff779ffa2779d/FLAG743968247 [2021-11-07 10:22:55,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868a079e4/d0aa45989d264cc8a11ff779ffa2779d [2021-11-07 10:22:55,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:22:55,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:22:55,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:22:55,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:22:55,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:22:55,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:22:55" (1/1) ... [2021-11-07 10:22:55,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a9fbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:55, skipping insertion in model container [2021-11-07 10:22:55,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:22:55" (1/1) ... [2021-11-07 10:22:55,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:22:55,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:22:57,882 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-07 10:22:57,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:22:57,955 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:22:58,297 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2021-11-07 10:22:58,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:22:58,408 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:22:58,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58 WrapperNode [2021-11-07 10:22:58,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:22:58,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:22:58,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:22:58,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:22:58,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:58,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:58,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:22:58,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:22:58,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:22:58,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:22:58,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:58,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:58,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:58,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:59,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:59,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:59,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:59,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:22:59,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:22:59,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:22:59,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:22:59,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (1/1) ... [2021-11-07 10:22:59,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:22:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:22:59,485 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 10:22:59,563 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 10:22:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 10:22:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 10:22:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:22:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:22:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:22:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:22:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2021-11-07 10:22:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2021-11-07 10:22:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:22:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:22:59,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:23:00,344 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,373 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,377 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,379 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,394 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,400 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,481 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,514 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:00,528 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 10:23:26,363 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1046: assume false; [2021-11-07 10:23:26,363 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1047: assume !false; [2021-11-07 10:23:26,363 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##503: assume !false; [2021-11-07 10:23:26,363 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##502: assume false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##65: assume false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##66: assume !false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##589: assume false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##590: assume !false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##627: assume !false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##626: assume false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1663: assume false; [2021-11-07 10:23:26,364 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1664: assume !false; [2021-11-07 10:23:26,365 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1409: assume false; [2021-11-07 10:23:26,365 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1410: assume !false; [2021-11-07 10:23:26,365 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1462: assume false; [2021-11-07 10:23:26,365 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1463: assume !false; [2021-11-07 10:23:26,365 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##958: assume !false; [2021-11-07 10:23:26,365 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##957: assume false; [2021-11-07 10:23:26,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:23:26,385 INFO L299 CfgBuilder]: Removed 1773 assume(true) statements. [2021-11-07 10:23:26,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:23:26 BoogieIcfgContainer [2021-11-07 10:23:26,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:23:26,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:23:26,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:23:26,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:23:26,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:22:55" (1/3) ... [2021-11-07 10:23:26,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd5ef60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:23:26, skipping insertion in model container [2021-11-07 10:23:26,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:22:58" (2/3) ... [2021-11-07 10:23:26,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd5ef60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:23:26, skipping insertion in model container [2021-11-07 10:23:26,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:23:26" (3/3) ... [2021-11-07 10:23:26,396 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2021-11-07 10:23:26,400 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:23:26,401 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 10:23:26,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:23:26,464 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 10:23:26,464 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 10:23:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 1914 states, 1903 states have (on average 1.4009458749343142) internal successors, (2666), 1908 states have internal predecessors, (2666), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 10:23:26,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 10:23:26,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:26,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:26,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:26,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -86151642, now seen corresponding path program 1 times [2021-11-07 10:23:26,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:26,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813423665] [2021-11-07 10:23:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:26,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:27,222 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 10:23:27,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:27,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813423665] [2021-11-07 10:23:27,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813423665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:27,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:27,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:23:27,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025627148] [2021-11-07 10:23:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:27,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:23:27,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:27,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:23:27,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:23:27,265 INFO L87 Difference]: Start difference. First operand has 1914 states, 1903 states have (on average 1.4009458749343142) internal successors, (2666), 1908 states have internal predecessors, (2666), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:27,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:27,596 INFO L93 Difference]: Finished difference Result 5669 states and 7923 transitions. [2021-11-07 10:23:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:23:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 10:23:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:27,636 INFO L225 Difference]: With dead ends: 5669 [2021-11-07 10:23:27,637 INFO L226 Difference]: Without dead ends: 3738 [2021-11-07 10:23:27,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:23:27,655 INFO L933 BasicCegarLoop]: 2636 mSDtfsCounter, 2580 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 5149 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.26ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.43ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:27,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 5149 Invalid, 27 Unknown, 0 Unchecked, 27.26ms Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 90.43ms Time] [2021-11-07 10:23:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2021-11-07 10:23:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3730. [2021-11-07 10:23:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3715 states have (on average 1.363391655450875) internal successors, (5065), 3719 states have internal predecessors, (5065), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:27,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5077 transitions. [2021-11-07 10:23:27,849 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5077 transitions. Word has length 13 [2021-11-07 10:23:27,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:27,849 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 5077 transitions. [2021-11-07 10:23:27,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:27,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5077 transitions. [2021-11-07 10:23:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 10:23:27,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:27,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:23:27,862 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:27,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:27,864 INFO L85 PathProgramCache]: Analyzing trace with hash 970211147, now seen corresponding path program 1 times [2021-11-07 10:23:27,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:27,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431519172] [2021-11-07 10:23:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:27,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:28,175 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 10:23:28,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:28,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431519172] [2021-11-07 10:23:28,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431519172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:28,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:28,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:23:28,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237815837] [2021-11-07 10:23:28,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:28,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:23:28,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:28,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:23:28,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:23:28,186 INFO L87 Difference]: Start difference. First operand 3730 states and 5077 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:28,432 INFO L93 Difference]: Finished difference Result 7406 states and 10086 transitions. [2021-11-07 10:23:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:23:28,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 10:23:28,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:28,449 INFO L225 Difference]: With dead ends: 7406 [2021-11-07 10:23:28,449 INFO L226 Difference]: Without dead ends: 3730 [2021-11-07 10:23:28,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:23:28,460 INFO L933 BasicCegarLoop]: 2587 mSDtfsCounter, 1 mSDsluCounter, 5168 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7755 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.05ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:28,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 7755 Invalid, 8 Unknown, 0 Unchecked, 10.65ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 22.05ms Time] [2021-11-07 10:23:28,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2021-11-07 10:23:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2021-11-07 10:23:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3715 states have (on average 1.363122476446837) internal successors, (5064), 3719 states have internal predecessors, (5064), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 5076 transitions. [2021-11-07 10:23:28,576 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 5076 transitions. Word has length 65 [2021-11-07 10:23:28,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:28,577 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 5076 transitions. [2021-11-07 10:23:28,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:28,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 5076 transitions. [2021-11-07 10:23:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-07 10:23:28,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:28,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:28,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:23:28,582 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:28,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1345747310, now seen corresponding path program 1 times [2021-11-07 10:23:28,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:28,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336382555] [2021-11-07 10:23:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:28,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:28,886 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 10:23:28,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:28,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336382555] [2021-11-07 10:23:28,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336382555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:28,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:28,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:23:28,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586240860] [2021-11-07 10:23:28,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:28,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:23:28,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:28,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:23:28,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:23:28,890 INFO L87 Difference]: Start difference. First operand 3730 states and 5076 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:29,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:29,165 INFO L93 Difference]: Finished difference Result 11046 states and 15050 transitions. [2021-11-07 10:23:29,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:23:29,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-07 10:23:29,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:29,200 INFO L225 Difference]: With dead ends: 11046 [2021-11-07 10:23:29,200 INFO L226 Difference]: Without dead ends: 7372 [2021-11-07 10:23:29,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:23:29,213 INFO L933 BasicCegarLoop]: 4967 mSDtfsCounter, 2488 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 7537 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.08ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.63ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:29,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2489 Valid, 7537 Invalid, 32 Unknown, 0 Unchecked, 13.08ms Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 77.63ms Time] [2021-11-07 10:23:29,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7372 states. [2021-11-07 10:23:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7372 to 3750. [2021-11-07 10:23:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 3735 states have (on average 1.3633199464524766) internal successors, (5092), 3739 states have internal predecessors, (5092), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 5104 transitions. [2021-11-07 10:23:29,367 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 5104 transitions. Word has length 69 [2021-11-07 10:23:29,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:29,368 INFO L470 AbstractCegarLoop]: Abstraction has 3750 states and 5104 transitions. [2021-11-07 10:23:29,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:29,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 5104 transitions. [2021-11-07 10:23:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 10:23:29,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:29,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:29,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:23:29,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:29,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash 875382655, now seen corresponding path program 1 times [2021-11-07 10:23:29,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:29,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527662242] [2021-11-07 10:23:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:29,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:29,861 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 10:23:29,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:29,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527662242] [2021-11-07 10:23:29,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527662242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:29,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:29,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:23:29,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567273349] [2021-11-07 10:23:29,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:29,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:23:29,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:29,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:23:29,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:23:29,863 INFO L87 Difference]: Start difference. First operand 3750 states and 5104 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:30,068 INFO L93 Difference]: Finished difference Result 7448 states and 10143 transitions. [2021-11-07 10:23:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:23:30,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-07 10:23:30,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:30,085 INFO L225 Difference]: With dead ends: 7448 [2021-11-07 10:23:30,085 INFO L226 Difference]: Without dead ends: 3750 [2021-11-07 10:23:30,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.99ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:23:30,100 INFO L933 BasicCegarLoop]: 2585 mSDtfsCounter, 3 mSDsluCounter, 7741 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10326 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.77ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:30,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 10326 Invalid, 21 Unknown, 0 Unchecked, 15.52ms Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 62.77ms Time] [2021-11-07 10:23:30,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2021-11-07 10:23:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3750. [2021-11-07 10:23:30,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 3735 states have (on average 1.3630522088353414) internal successors, (5091), 3739 states have internal predecessors, (5091), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 5103 transitions. [2021-11-07 10:23:30,219 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 5103 transitions. Word has length 72 [2021-11-07 10:23:30,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:30,221 INFO L470 AbstractCegarLoop]: Abstraction has 3750 states and 5103 transitions. [2021-11-07 10:23:30,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 5103 transitions. [2021-11-07 10:23:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 10:23:30,225 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:30,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:30,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 10:23:30,226 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:30,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:30,227 INFO L85 PathProgramCache]: Analyzing trace with hash 174558702, now seen corresponding path program 1 times [2021-11-07 10:23:30,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:30,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164647183] [2021-11-07 10:23:30,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:30,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:30,643 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 10:23:30,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:30,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164647183] [2021-11-07 10:23:30,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164647183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:30,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:30,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:23:30,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723570250] [2021-11-07 10:23:30,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:30,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:23:30,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:23:30,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:23:30,645 INFO L87 Difference]: Start difference. First operand 3750 states and 5103 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:30,945 INFO L93 Difference]: Finished difference Result 7477 states and 10178 transitions. [2021-11-07 10:23:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:23:30,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 10:23:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:30,962 INFO L225 Difference]: With dead ends: 7477 [2021-11-07 10:23:30,962 INFO L226 Difference]: Without dead ends: 3750 [2021-11-07 10:23:30,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.79ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:23:30,971 INFO L933 BasicCegarLoop]: 2582 mSDtfsCounter, 9 mSDsluCounter, 10316 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12898 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.84ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.05ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:30,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 12898 Invalid, 32 Unknown, 0 Unchecked, 12.84ms Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 72.05ms Time] [2021-11-07 10:23:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2021-11-07 10:23:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3750. [2021-11-07 10:23:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 3735 states have (on average 1.3627844712182062) internal successors, (5090), 3739 states have internal predecessors, (5090), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 5102 transitions. [2021-11-07 10:23:31,077 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 5102 transitions. Word has length 83 [2021-11-07 10:23:31,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:31,078 INFO L470 AbstractCegarLoop]: Abstraction has 3750 states and 5102 transitions. [2021-11-07 10:23:31,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 5102 transitions. [2021-11-07 10:23:31,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 10:23:31,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:31,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:31,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 10:23:31,081 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:31,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:31,082 INFO L85 PathProgramCache]: Analyzing trace with hash 309930551, now seen corresponding path program 1 times [2021-11-07 10:23:31,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:31,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763934837] [2021-11-07 10:23:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:31,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:31,305 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 10:23:31,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:31,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763934837] [2021-11-07 10:23:31,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763934837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:31,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:31,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:23:31,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821560444] [2021-11-07 10:23:31,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:31,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:23:31,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:23:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:23:31,309 INFO L87 Difference]: Start difference. First operand 3750 states and 5102 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:31,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:31,678 INFO L93 Difference]: Finished difference Result 18479 states and 25178 transitions. [2021-11-07 10:23:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:23:31,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-07 10:23:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:31,741 INFO L225 Difference]: With dead ends: 18479 [2021-11-07 10:23:31,742 INFO L226 Difference]: Without dead ends: 14780 [2021-11-07 10:23:31,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:23:31,761 INFO L933 BasicCegarLoop]: 5090 mSDtfsCounter, 10069 mSDsluCounter, 10143 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10071 SdHoareTripleChecker+Valid, 15233 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.21ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.44ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:31,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10071 Valid, 15233 Invalid, 20 Unknown, 0 Unchecked, 22.21ms Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 43.44ms Time] [2021-11-07 10:23:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14780 states. [2021-11-07 10:23:31,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14780 to 3752. [2021-11-07 10:23:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 3737 states have (on average 1.3625903130853625) internal successors, (5092), 3741 states have internal predecessors, (5092), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:32,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5104 transitions. [2021-11-07 10:23:32,010 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5104 transitions. Word has length 85 [2021-11-07 10:23:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:32,010 INFO L470 AbstractCegarLoop]: Abstraction has 3752 states and 5104 transitions. [2021-11-07 10:23:32,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:32,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5104 transitions. [2021-11-07 10:23:32,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 10:23:32,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:32,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:32,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 10:23:32,019 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash 302728500, now seen corresponding path program 1 times [2021-11-07 10:23:32,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:32,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821164196] [2021-11-07 10:23:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:32,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:32,535 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 10:23:32,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:32,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821164196] [2021-11-07 10:23:32,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821164196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:32,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:32,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:23:32,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137459562] [2021-11-07 10:23:32,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:32,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:23:32,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:32,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:23:32,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:23:32,538 INFO L87 Difference]: Start difference. First operand 3752 states and 5104 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:34,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:34,975 INFO L93 Difference]: Finished difference Result 17460 states and 23924 transitions. [2021-11-07 10:23:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:23:34,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 10:23:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:35,015 INFO L225 Difference]: With dead ends: 17460 [2021-11-07 10:23:35,015 INFO L226 Difference]: Without dead ends: 13716 [2021-11-07 10:23:35,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 176.15ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:23:35,035 INFO L933 BasicCegarLoop]: 4570 mSDtfsCounter, 11764 mSDsluCounter, 13900 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1462.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11765 SdHoareTripleChecker+Valid, 18470 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.50ms SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1631.08ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:35,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11765 Valid, 18470 Invalid, 742 Unknown, 0 Unchecked, 48.50ms Time], IncrementalHoareTripleChecker [94 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1631.08ms Time] [2021-11-07 10:23:35,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13716 states. [2021-11-07 10:23:35,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13716 to 3752. [2021-11-07 10:23:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 3737 states have (on average 1.3623227187583624) internal successors, (5091), 3741 states have internal predecessors, (5091), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:23:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 5103 transitions. [2021-11-07 10:23:35,279 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 5103 transitions. Word has length 86 [2021-11-07 10:23:35,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:35,280 INFO L470 AbstractCegarLoop]: Abstraction has 3752 states and 5103 transitions. [2021-11-07 10:23:35,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 5103 transitions. [2021-11-07 10:23:35,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 10:23:35,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:35,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:35,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 10:23:35,283 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:35,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:35,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1152728039, now seen corresponding path program 1 times [2021-11-07 10:23:35,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:35,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043990947] [2021-11-07 10:23:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:35,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:35,721 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 10:23:35,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:35,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043990947] [2021-11-07 10:23:35,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043990947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:35,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:35,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:23:35,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317773512] [2021-11-07 10:23:35,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:35,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:23:35,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:35,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:23:35,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:23:35,724 INFO L87 Difference]: Start difference. First operand 3752 states and 5103 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:42,977 INFO L93 Difference]: Finished difference Result 97510 states and 135591 transitions. [2021-11-07 10:23:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 10:23:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-07 10:23:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:43,312 INFO L225 Difference]: With dead ends: 97510 [2021-11-07 10:23:43,312 INFO L226 Difference]: Without dead ends: 93778 [2021-11-07 10:23:43,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 775.80ms TimeCoverageRelationStatistics Valid=243, Invalid=813, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 10:23:43,376 INFO L933 BasicCegarLoop]: 5293 mSDtfsCounter, 87359 mSDsluCounter, 29707 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2459.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 87363 SdHoareTripleChecker+Valid, 35000 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 129.08ms SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2765.18ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:43,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87363 Valid, 35000 Invalid, 1440 Unknown, 0 Unchecked, 129.08ms Time], IncrementalHoareTripleChecker [342 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 2765.18ms Time] [2021-11-07 10:23:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93778 states. [2021-11-07 10:23:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93778 to 7438. [2021-11-07 10:23:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7438 states, 7413 states have (on average 1.362741130446513) internal successors, (10102), 7417 states have internal predecessors, (10102), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-07 10:23:44,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7438 states to 7438 states and 10126 transitions. [2021-11-07 10:23:44,893 INFO L78 Accepts]: Start accepts. Automaton has 7438 states and 10126 transitions. Word has length 89 [2021-11-07 10:23:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:44,895 INFO L470 AbstractCegarLoop]: Abstraction has 7438 states and 10126 transitions. [2021-11-07 10:23:44,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 7438 states and 10126 transitions. [2021-11-07 10:23:44,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 10:23:44,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:44,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:44,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 10:23:44,904 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:44,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:44,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1520097109, now seen corresponding path program 1 times [2021-11-07 10:23:44,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:44,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831129368] [2021-11-07 10:23:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:44,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:47,134 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 10:23:47,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:47,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831129368] [2021-11-07 10:23:47,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831129368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:47,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:47,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:23:47,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452675154] [2021-11-07 10:23:47,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:47,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:23:47,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:23:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:23:47,137 INFO L87 Difference]: Start difference. First operand 7438 states and 10126 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 10:23:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:47,647 INFO L93 Difference]: Finished difference Result 11122 states and 15138 transitions. [2021-11-07 10:23:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:23:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2021-11-07 10:23:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:47,672 INFO L225 Difference]: With dead ends: 11122 [2021-11-07 10:23:47,672 INFO L226 Difference]: Without dead ends: 7428 [2021-11-07 10:23:47,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 102.63ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:23:47,686 INFO L933 BasicCegarLoop]: 2581 mSDtfsCounter, 9 mSDsluCounter, 7722 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10303 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.53ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.37ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:47,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10303 Invalid, 18 Unknown, 0 Unchecked, 6.53ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 38.37ms Time] [2021-11-07 10:23:47,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7428 states. [2021-11-07 10:23:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7428 to 7428. [2021-11-07 10:23:48,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 7403 states have (on average 1.362420640280967) internal successors, (10086), 7407 states have internal predecessors, (10086), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-07 10:23:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 10110 transitions. [2021-11-07 10:23:48,162 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 10110 transitions. Word has length 92 [2021-11-07 10:23:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:48,163 INFO L470 AbstractCegarLoop]: Abstraction has 7428 states and 10110 transitions. [2021-11-07 10:23:48,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 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 10:23:48,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 10110 transitions. [2021-11-07 10:23:48,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-07 10:23:48,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:48,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:48,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 10:23:48,169 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1819233965, now seen corresponding path program 1 times [2021-11-07 10:23:48,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:48,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159145818] [2021-11-07 10:23:48,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:48,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:48,447 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 10:23:48,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:48,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159145818] [2021-11-07 10:23:48,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159145818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:48,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:48,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:23:48,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48882802] [2021-11-07 10:23:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:48,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:23:48,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:48,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:23:48,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:23:48,450 INFO L87 Difference]: Start difference. First operand 7428 states and 10110 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 10:23:50,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:23:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:51,224 INFO L93 Difference]: Finished difference Result 11135 states and 15154 transitions. [2021-11-07 10:23:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:23:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-11-07 10:23:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:51,245 INFO L225 Difference]: With dead ends: 11135 [2021-11-07 10:23:51,246 INFO L226 Difference]: Without dead ends: 7441 [2021-11-07 10:23:51,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:23:51,258 INFO L933 BasicCegarLoop]: 2723 mSDtfsCounter, 2473 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2106.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2473 SdHoareTripleChecker+Valid, 5269 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.00ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2253.41ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:51,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2473 Valid, 5269 Invalid, 19 Unknown, 0 Unchecked, 7.00ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2253.41ms Time] [2021-11-07 10:23:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7441 states. [2021-11-07 10:23:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7441 to 7428. [2021-11-07 10:23:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7428 states, 7403 states have (on average 1.3612049169255707) internal successors, (10077), 7407 states have internal predecessors, (10077), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-07 10:23:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7428 states to 7428 states and 10101 transitions. [2021-11-07 10:23:51,761 INFO L78 Accepts]: Start accepts. Automaton has 7428 states and 10101 transitions. Word has length 99 [2021-11-07 10:23:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:23:51,762 INFO L470 AbstractCegarLoop]: Abstraction has 7428 states and 10101 transitions. [2021-11-07 10:23:51,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 10:23:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 7428 states and 10101 transitions. [2021-11-07 10:23:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 10:23:51,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:23:51,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:23:51,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 10:23:51,769 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:23:51,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:23:51,769 INFO L85 PathProgramCache]: Analyzing trace with hash 831220146, now seen corresponding path program 1 times [2021-11-07 10:23:51,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:23:51,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100126630] [2021-11-07 10:23:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:23:51,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:23:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:23:52,286 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 10:23:52,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:23:52,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100126630] [2021-11-07 10:23:52,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100126630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:23:52,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:23:52,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:23:52,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881970445] [2021-11-07 10:23:52,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:23:52,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:23:52,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:23:52,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:23:52,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:23:52,288 INFO L87 Difference]: Start difference. First operand 7428 states and 10101 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:23:58,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:23:58,638 INFO L93 Difference]: Finished difference Result 74226 states and 102109 transitions. [2021-11-07 10:23:58,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 10:23:58,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-07 10:23:58,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:23:58,812 INFO L225 Difference]: With dead ends: 74226 [2021-11-07 10:23:58,813 INFO L226 Difference]: Without dead ends: 66846 [2021-11-07 10:23:58,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 324.74ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-11-07 10:23:58,863 INFO L933 BasicCegarLoop]: 2531 mSDtfsCounter, 29854 mSDsluCounter, 17257 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1809.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29857 SdHoareTripleChecker+Valid, 19788 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.04ms SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2025.76ms IncrementalHoareTripleChecker+Time [2021-11-07 10:23:58,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29857 Valid, 19788 Invalid, 920 Unknown, 0 Unchecked, 49.04ms Time], IncrementalHoareTripleChecker [209 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 2025.76ms Time] [2021-11-07 10:23:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66846 states. [2021-11-07 10:24:00,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66846 to 7436. [2021-11-07 10:24:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7436 states, 7411 states have (on average 1.3608150047227094) internal successors, (10085), 7415 states have internal predecessors, (10085), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-07 10:24:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7436 states to 7436 states and 10109 transitions. [2021-11-07 10:24:00,153 INFO L78 Accepts]: Start accepts. Automaton has 7436 states and 10109 transitions. Word has length 100 [2021-11-07 10:24:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:24:00,154 INFO L470 AbstractCegarLoop]: Abstraction has 7436 states and 10109 transitions. [2021-11-07 10:24:00,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:24:00,154 INFO L276 IsEmpty]: Start isEmpty. Operand 7436 states and 10109 transitions. [2021-11-07 10:24:00,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 10:24:00,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:24:00,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:24:00,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 10:24:00,159 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:24:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:24:00,159 INFO L85 PathProgramCache]: Analyzing trace with hash 99252720, now seen corresponding path program 1 times [2021-11-07 10:24:00,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:24:00,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568173631] [2021-11-07 10:24:00,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:24:00,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:24:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:24:02,177 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 10:24:02,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:24:02,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568173631] [2021-11-07 10:24:02,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568173631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:24:02,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:24:02,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:24:02,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173743370] [2021-11-07 10:24:02,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:24:02,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:24:02,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:24:02,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:24:02,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:24:02,179 INFO L87 Difference]: Start difference. First operand 7436 states and 10109 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:24:02,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:24:02,521 INFO L93 Difference]: Finished difference Result 7454 states and 10122 transitions. [2021-11-07 10:24:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:24:02,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-07 10:24:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:24:02,531 INFO L225 Difference]: With dead ends: 7454 [2021-11-07 10:24:02,531 INFO L226 Difference]: Without dead ends: 3746 [2021-11-07 10:24:02,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 119.93ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:24:02,544 INFO L933 BasicCegarLoop]: 2566 mSDtfsCounter, 3 mSDsluCounter, 7683 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10249 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:24:02,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 10249 Invalid, 17 Unknown, 0 Unchecked, 5.31ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 36.00ms Time] [2021-11-07 10:24:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2021-11-07 10:24:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3746. [2021-11-07 10:24:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3731 states have (on average 1.3588850174216027) internal successors, (5070), 3735 states have internal predecessors, (5070), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-07 10:24:03,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5082 transitions. [2021-11-07 10:24:03,126 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5082 transitions. Word has length 100 [2021-11-07 10:24:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:24:03,127 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 5082 transitions. [2021-11-07 10:24:03,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:24:03,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5082 transitions. [2021-11-07 10:24:03,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 10:24:03,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:24:03,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:24:03,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 10:24:03,133 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:24:03,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:24:03,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1032385025, now seen corresponding path program 1 times [2021-11-07 10:24:03,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:24:03,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445272678] [2021-11-07 10:24:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:24:03,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:24:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:24:10,964 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 10:24:10,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:24:10,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445272678] [2021-11-07 10:24:10,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445272678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:24:10,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:24:10,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 10:24:10,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165873268] [2021-11-07 10:24:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:24:10,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 10:24:10,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:24:10,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 10:24:10,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2021-11-07 10:24:10,966 INFO L87 Difference]: Start difference. First operand 3746 states and 5082 transitions. Second operand has 22 states, 22 states have (on average 4.545454545454546) internal successors, (100), 21 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:24:13,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:15,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:17,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:19,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:21,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:23,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:25,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:28,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:30,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:32,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:34,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:36,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:24:56,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:25:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:25:25,269 INFO L93 Difference]: Finished difference Result 7899 states and 10737 transitions. [2021-11-07 10:25:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 10:25:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.545454545454546) internal successors, (100), 21 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-07 10:25:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:25:25,282 INFO L225 Difference]: With dead ends: 7899 [2021-11-07 10:25:25,282 INFO L226 Difference]: Without dead ends: 4205 [2021-11-07 10:25:25,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 3416.40ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 10:25:25,294 INFO L933 BasicCegarLoop]: 2455 mSDtfsCounter, 1815 mSDsluCounter, 25191 mSDsCounter, 0 mSdLazyCounter, 11191 mSolverCounterSat, 211 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65517.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 27646 SdHoareTripleChecker+Invalid, 11415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 110.61ms SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 11191 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71551.02ms IncrementalHoareTripleChecker+Time [2021-11-07 10:25:25,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1815 Valid, 27646 Invalid, 11415 Unknown, 0 Unchecked, 110.61ms Time], IncrementalHoareTripleChecker [211 Valid, 11191 Invalid, 13 Unknown, 0 Unchecked, 71551.02ms Time] [2021-11-07 10:25:25,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2021-11-07 10:25:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 3883. [2021-11-07 10:25:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3883 states, 3863 states have (on average 1.3626714988351023) internal successors, (5264), 3867 states have internal predecessors, (5264), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 10:25:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 5282 transitions. [2021-11-07 10:25:25,615 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 5282 transitions. Word has length 100 [2021-11-07 10:25:25,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:25:25,615 INFO L470 AbstractCegarLoop]: Abstraction has 3883 states and 5282 transitions. [2021-11-07 10:25:25,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.545454545454546) internal successors, (100), 21 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:25:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 5282 transitions. [2021-11-07 10:25:25,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 10:25:25,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:25:25,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:25:25,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 10:25:25,619 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:25:25,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:25:25,620 INFO L85 PathProgramCache]: Analyzing trace with hash 961952832, now seen corresponding path program 1 times [2021-11-07 10:25:25,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:25:25,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362004127] [2021-11-07 10:25:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:25:25,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:25:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:25:26,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:25:26,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:25:26,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362004127] [2021-11-07 10:25:26,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362004127] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:25:26,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739264929] [2021-11-07 10:25:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:25:26,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:25:26,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:25:26,011 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 10:25:26,013 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 10:25:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:25:27,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 3351 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:25:27,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:25:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:25:27,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:25:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:25:27,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739264929] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:25:27,603 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 10:25:27,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 10:25:27,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105605706] [2021-11-07 10:25:27,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 10:25:27,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:25:27,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:25:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:25:27,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:25:27,605 INFO L87 Difference]: Start difference. First operand 3883 states and 5282 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:25:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:25:29,096 INFO L93 Difference]: Finished difference Result 22109 states and 30080 transitions. [2021-11-07 10:25:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:25:29,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-07 10:25:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:25:29,144 INFO L225 Difference]: With dead ends: 22109 [2021-11-07 10:25:29,145 INFO L226 Difference]: Without dead ends: 18415 [2021-11-07 10:25:29,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 58.33ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:25:29,167 INFO L933 BasicCegarLoop]: 7402 mSDtfsCounter, 12440 mSDsluCounter, 14899 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 212.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12444 SdHoareTripleChecker+Valid, 22301 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.06ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 238.02ms IncrementalHoareTripleChecker+Time [2021-11-07 10:25:29,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12444 Valid, 22301 Invalid, 108 Unknown, 0 Unchecked, 24.06ms Time], IncrementalHoareTripleChecker [23 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 238.02ms Time] [2021-11-07 10:25:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18415 states. [2021-11-07 10:25:29,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18415 to 3931. [2021-11-07 10:25:29,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3911 states have (on average 1.362311429301969) internal successors, (5328), 3915 states have internal predecessors, (5328), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 10:25:29,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 5346 transitions. [2021-11-07 10:25:29,825 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 5346 transitions. Word has length 101 [2021-11-07 10:25:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:25:29,826 INFO L470 AbstractCegarLoop]: Abstraction has 3931 states and 5346 transitions. [2021-11-07 10:25:29,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:25:29,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 5346 transitions. [2021-11-07 10:25:29,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 10:25:29,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:25:29,830 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:25:29,867 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 10:25:30,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-07 10:25:30,044 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 10:25:30,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:25:30,044 INFO L85 PathProgramCache]: Analyzing trace with hash -464394573, now seen corresponding path program 1 times [2021-11-07 10:25:30,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:25:30,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103387583] [2021-11-07 10:25:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:25:30,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:25:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:25:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:25:35,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:25:35,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103387583] [2021-11-07 10:25:35,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103387583] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:25:35,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788931539] [2021-11-07 10:25:35,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:25:35,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:25:35,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:25:35,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:25:35,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 10:36:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:36:23,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 3360 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 10:36:23,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:36:23,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4070 treesize of output 4062 [2021-11-07 10:36:24,116 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-07 10:36:24,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 4062 treesize of output 4064 [2021-11-07 10:36:24,438 INFO L354 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2021-11-07 10:36:24,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 4061 treesize of output 4063 Killed by 15