./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.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-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.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 106df4f5c2a241158f9b42d6bacea5fef4152f7015c080096ac6f687357e10b4 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 12:30:22,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 12:30:22,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 12:30:22,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 12:30:22,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 12:30:22,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 12:30:22,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 12:30:22,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 12:30:22,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 12:30:22,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 12:30:22,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 12:30:22,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 12:30:22,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 12:30:22,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 12:30:22,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 12:30:22,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 12:30:22,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 12:30:22,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 12:30:22,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 12:30:22,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 12:30:22,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 12:30:22,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 12:30:22,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 12:30:22,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 12:30:22,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 12:30:22,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 12:30:22,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 12:30:22,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 12:30:22,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 12:30:22,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 12:30:22,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 12:30:22,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 12:30:22,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 12:30:22,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 12:30:22,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 12:30:22,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 12:30:22,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 12:30:22,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 12:30:22,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 12:30:22,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 12:30:22,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 12:30:22,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 12:30:22,261 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 12:30:22,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 12:30:22,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 12:30:22,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 12:30:22,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 12:30:22,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 12:30:22,263 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 12:30:22,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 12:30:22,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 12:30:22,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 12:30:22,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 12:30:22,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 12:30:22,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 12:30:22,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 12:30:22,264 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 12:30:22,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 12:30:22,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 12:30:22,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 12:30:22,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 12:30:22,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:30:22,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 12:30:22,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 12:30:22,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 12:30:22,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 12:30:22,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 12:30:22,266 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 12:30:22,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 12:30:22,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 12:30:22,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 12:30:22,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 106df4f5c2a241158f9b42d6bacea5fef4152f7015c080096ac6f687357e10b4 [2021-11-07 12:30:22,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 12:30:22,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 12:30:22,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 12:30:22,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 12:30:22,491 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 12:30:22,492 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2021-11-07 12:30:22,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ede26c9f/c37553eb455744fbbba531a029aa7537/FLAGebaa641c1 [2021-11-07 12:30:23,168 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 12:30:23,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2021-11-07 12:30:23,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ede26c9f/c37553eb455744fbbba531a029aa7537/FLAGebaa641c1 [2021-11-07 12:30:23,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ede26c9f/c37553eb455744fbbba531a029aa7537 [2021-11-07 12:30:23,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 12:30:23,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 12:30:23,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 12:30:23,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 12:30:23,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 12:30:23,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:30:23" (1/1) ... [2021-11-07 12:30:23,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197ee7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:23, skipping insertion in model container [2021-11-07 12:30:23,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:30:23" (1/1) ... [2021-11-07 12:30:23,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 12:30:23,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 12:30:24,640 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-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i[247200,247213] [2021-11-07 12:30:24,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:30:24,734 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 12:30:24,949 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-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i[247200,247213] [2021-11-07 12:30:24,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 12:30:25,003 INFO L208 MainTranslator]: Completed translation [2021-11-07 12:30:25,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25 WrapperNode [2021-11-07 12:30:25,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 12:30:25,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 12:30:25,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 12:30:25,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 12:30:25,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 12:30:25,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 12:30:25,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 12:30:25,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 12:30:25,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 12:30:25,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 12:30:25,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 12:30:25,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 12:30:25,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (1/1) ... [2021-11-07 12:30:25,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 12:30:25,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:30:25,596 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 12:30:25,612 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 12:30:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 12:30:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 12:30:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 12:30:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 12:30:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 12:30:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 12:30:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 12:30:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 12:30:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 12:30:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 12:30:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 12:30:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 12:30:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 12:30:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 12:30:25,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 12:30:38,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 12:30:38,720 INFO L299 CfgBuilder]: Removed 1570 assume(true) statements. [2021-11-07 12:30:38,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:30:38 BoogieIcfgContainer [2021-11-07 12:30:38,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 12:30:38,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 12:30:38,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 12:30:38,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 12:30:38,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:30:23" (1/3) ... [2021-11-07 12:30:38,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492578c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:30:38, skipping insertion in model container [2021-11-07 12:30:38,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:25" (2/3) ... [2021-11-07 12:30:38,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492578c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:30:38, skipping insertion in model container [2021-11-07 12:30:38,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:30:38" (3/3) ... [2021-11-07 12:30:38,731 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2021-11-07 12:30:38,734 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 12:30:38,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2021-11-07 12:30:38,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 12:30:38,786 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 12:30:38,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2021-11-07 12:30:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 1769 states, 1706 states have (on average 1.4425556858147714) internal successors, (2461), 1768 states have internal predecessors, (2461), 0 states have call successors, (0), 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 12:30:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 12:30:38,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:38,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 12:30:38,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:38,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1070827562, now seen corresponding path program 1 times [2021-11-07 12:30:38,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:38,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539431575] [2021-11-07 12:30:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:38,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:39,246 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 12:30:39,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:39,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539431575] [2021-11-07 12:30:39,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539431575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:39,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:39,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:39,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136140549] [2021-11-07 12:30:39,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:39,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:39,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:39,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:39,279 INFO L87 Difference]: Start difference. First operand has 1769 states, 1706 states have (on average 1.4425556858147714) internal successors, (2461), 1768 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 12:30:41,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:30:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:41,668 INFO L93 Difference]: Finished difference Result 5256 states and 7326 transitions. [2021-11-07 12:30:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:41,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-11-07 12:30:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:41,687 INFO L225 Difference]: With dead ends: 5256 [2021-11-07 12:30:41,688 INFO L226 Difference]: Without dead ends: 3479 [2021-11-07 12:30:41,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:41,695 INFO L933 BasicCegarLoop]: 2458 mSDtfsCounter, 2345 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2071.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2345 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.65ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2245.39ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:41,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2345 Valid, 4769 Invalid, 54 Unknown, 0 Unchecked, 16.65ms Time], IncrementalHoareTripleChecker [21 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2245.39ms Time] [2021-11-07 12:30:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2021-11-07 12:30:41,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3371. [2021-11-07 12:30:41,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 3309 states have (on average 1.396796615291629) internal successors, (4622), 3370 states have internal predecessors, (4622), 0 states have call successors, (0), 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 12:30:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4622 transitions. [2021-11-07 12:30:41,813 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4622 transitions. Word has length 6 [2021-11-07 12:30:41,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:41,813 INFO L470 AbstractCegarLoop]: Abstraction has 3371 states and 4622 transitions. [2021-11-07 12:30:41,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 12:30:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4622 transitions. [2021-11-07 12:30:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 12:30:41,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:41,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:30:41,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 12:30:41,816 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1164079702, now seen corresponding path program 1 times [2021-11-07 12:30:41,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:41,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117638666] [2021-11-07 12:30:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:41,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:41,923 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 12:30:41,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:41,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117638666] [2021-11-07 12:30:41,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117638666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:41,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:41,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:41,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881698683] [2021-11-07 12:30:41,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:41,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:41,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:41,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:41,930 INFO L87 Difference]: Start difference. First operand 3371 states and 4622 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 12:30:43,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:30:44,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:44,128 INFO L93 Difference]: Finished difference Result 3371 states and 4622 transitions. [2021-11-07 12:30:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:44,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 7 [2021-11-07 12:30:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:44,137 INFO L225 Difference]: With dead ends: 3371 [2021-11-07 12:30:44,137 INFO L226 Difference]: Without dead ends: 3369 [2021-11-07 12:30:44,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:44,139 INFO L933 BasicCegarLoop]: 2362 mSDtfsCounter, 2358 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2028.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.32ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2156.22ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:44,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2358 Valid, 2362 Invalid, 2 Unknown, 0 Unchecked, 5.32ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2156.22ms Time] [2021-11-07 12:30:44,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2021-11-07 12:30:44,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3369. [2021-11-07 12:30:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3369 states, 3308 states have (on average 1.396614268440145) internal successors, (4620), 3368 states have internal predecessors, (4620), 0 states have call successors, (0), 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 12:30:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3369 states to 3369 states and 4620 transitions. [2021-11-07 12:30:44,196 INFO L78 Accepts]: Start accepts. Automaton has 3369 states and 4620 transitions. Word has length 7 [2021-11-07 12:30:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:44,196 INFO L470 AbstractCegarLoop]: Abstraction has 3369 states and 4620 transitions. [2021-11-07 12:30:44,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 12:30:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3369 states and 4620 transitions. [2021-11-07 12:30:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 12:30:44,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:44,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:30:44,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 12:30:44,198 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:44,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:44,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1726728140, now seen corresponding path program 1 times [2021-11-07 12:30:44,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:44,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708604936] [2021-11-07 12:30:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:44,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:44,278 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 12:30:44,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:44,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708604936] [2021-11-07 12:30:44,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708604936] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:44,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:44,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:44,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725160866] [2021-11-07 12:30:44,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:44,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:44,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:44,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:44,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:44,280 INFO L87 Difference]: Start difference. First operand 3369 states and 4620 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 12:30:46,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:30:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:46,473 INFO L93 Difference]: Finished difference Result 3369 states and 4620 transitions. [2021-11-07 12:30:46,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:46,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-11-07 12:30:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:46,482 INFO L225 Difference]: With dead ends: 3369 [2021-11-07 12:30:46,482 INFO L226 Difference]: Without dead ends: 3367 [2021-11-07 12:30:46,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:46,484 INFO L933 BasicCegarLoop]: 2360 mSDtfsCounter, 2355 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2022.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2147.22ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:46,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2355 Valid, 2360 Invalid, 2 Unknown, 0 Unchecked, 3.48ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2147.22ms Time] [2021-11-07 12:30:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2021-11-07 12:30:46,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2021-11-07 12:30:46,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3307 states have (on average 1.396431811309344) internal successors, (4618), 3366 states have internal predecessors, (4618), 0 states have call successors, (0), 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 12:30:46,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 4618 transitions. [2021-11-07 12:30:46,588 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 4618 transitions. Word has length 8 [2021-11-07 12:30:46,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:46,589 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 4618 transitions. [2021-11-07 12:30:46,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 12:30:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 4618 transitions. [2021-11-07 12:30:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 12:30:46,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:46,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:30:46,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 12:30:46,590 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:46,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1988960524, now seen corresponding path program 1 times [2021-11-07 12:30:46,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:46,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103442655] [2021-11-07 12:30:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:46,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:46,707 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 12:30:46,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:46,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103442655] [2021-11-07 12:30:46,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103442655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:46,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:46,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:46,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549916135] [2021-11-07 12:30:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:46,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:46,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:46,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:46,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:46,710 INFO L87 Difference]: Start difference. First operand 3367 states and 4618 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:30:48,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:30:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:49,183 INFO L93 Difference]: Finished difference Result 9735 states and 13477 transitions. [2021-11-07 12:30:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:49,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2021-11-07 12:30:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:49,200 INFO L225 Difference]: With dead ends: 9735 [2021-11-07 12:30:49,201 INFO L226 Difference]: Without dead ends: 6366 [2021-11-07 12:30:49,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:49,211 INFO L933 BasicCegarLoop]: 2852 mSDtfsCounter, 2244 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 96 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2176.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.20ms SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2361.16ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:49,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2244 Valid, 4934 Invalid, 242 Unknown, 0 Unchecked, 6.20ms Time], IncrementalHoareTripleChecker [96 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 2361.16ms Time] [2021-11-07 12:30:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6366 states. [2021-11-07 12:30:49,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6366 to 5900. [2021-11-07 12:30:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5840 states have (on average 1.3960616438356164) internal successors, (8153), 5899 states have internal predecessors, (8153), 0 states have call successors, (0), 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 12:30:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 8153 transitions. [2021-11-07 12:30:49,328 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 8153 transitions. Word has length 9 [2021-11-07 12:30:49,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:49,328 INFO L470 AbstractCegarLoop]: Abstraction has 5900 states and 8153 transitions. [2021-11-07 12:30:49,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 12:30:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 8153 transitions. [2021-11-07 12:30:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 12:30:49,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:49,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:30:49,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 12:30:49,335 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:49,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:49,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1584398266, now seen corresponding path program 1 times [2021-11-07 12:30:49,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:49,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95534719] [2021-11-07 12:30:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:49,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:49,485 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 12:30:49,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:49,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95534719] [2021-11-07 12:30:49,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95534719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:49,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:49,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:30:49,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421957359] [2021-11-07 12:30:49,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:49,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:49,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:49,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:49,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:49,488 INFO L87 Difference]: Start difference. First operand 5900 states and 8153 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:30:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:49,757 INFO L93 Difference]: Finished difference Result 11618 states and 16052 transitions. [2021-11-07 12:30:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:49,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 12:30:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:49,774 INFO L225 Difference]: With dead ends: 11618 [2021-11-07 12:30:49,774 INFO L226 Difference]: Without dead ends: 5720 [2021-11-07 12:30:49,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:49,782 INFO L933 BasicCegarLoop]: 2101 mSDtfsCounter, 2168 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.49ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.57ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:49,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2168 Valid, 2101 Invalid, 175 Unknown, 0 Unchecked, 3.49ms Time], IncrementalHoareTripleChecker [87 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 127.57ms Time] [2021-11-07 12:30:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2021-11-07 12:30:49,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5720. [2021-11-07 12:30:49,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5660 states have (on average 1.338339222614841) internal successors, (7575), 5719 states have internal predecessors, (7575), 0 states have call successors, (0), 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 12:30:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 7575 transitions. [2021-11-07 12:30:49,889 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 7575 transitions. Word has length 62 [2021-11-07 12:30:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:49,890 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 7575 transitions. [2021-11-07 12:30:49,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:30:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 7575 transitions. [2021-11-07 12:30:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 12:30:49,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:49,896 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:30:49,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 12:30:49,896 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:49,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1751479244, now seen corresponding path program 1 times [2021-11-07 12:30:49,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:49,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24362943] [2021-11-07 12:30:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:49,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:50,024 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 12:30:50,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:50,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24362943] [2021-11-07 12:30:50,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24362943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:50,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:50,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:50,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73722442] [2021-11-07 12:30:50,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:50,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:50,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:50,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:50,027 INFO L87 Difference]: Start difference. First operand 5720 states and 7575 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:30:50,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:50,152 INFO L93 Difference]: Finished difference Result 11438 states and 15148 transitions. [2021-11-07 12:30:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-07 12:30:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:50,167 INFO L225 Difference]: With dead ends: 11438 [2021-11-07 12:30:50,168 INFO L226 Difference]: Without dead ends: 5720 [2021-11-07 12:30:50,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:50,175 INFO L933 BasicCegarLoop]: 2181 mSDtfsCounter, 0 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.99ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.35ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:50,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4322 Invalid, 50 Unknown, 0 Unchecked, 2.99ms Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 47.35ms Time] [2021-11-07 12:30:50,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2021-11-07 12:30:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5720. [2021-11-07 12:30:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5660 states have (on average 1.335512367491166) internal successors, (7559), 5719 states have internal predecessors, (7559), 0 states have call successors, (0), 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 12:30:50,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 7559 transitions. [2021-11-07 12:30:50,264 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 7559 transitions. Word has length 62 [2021-11-07 12:30:50,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:50,265 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 7559 transitions. [2021-11-07 12:30:50,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:30:50,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 7559 transitions. [2021-11-07 12:30:50,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 12:30:50,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:50,266 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] [2021-11-07 12:30:50,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 12:30:50,266 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:50,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1962603724, now seen corresponding path program 1 times [2021-11-07 12:30:50,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:50,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139152807] [2021-11-07 12:30:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:50,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:50,390 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 12:30:50,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:50,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139152807] [2021-11-07 12:30:50,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139152807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:50,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:50,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:30:50,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594906206] [2021-11-07 12:30:50,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:50,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:30:50,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:50,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:30:50,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:30:50,393 INFO L87 Difference]: Start difference. First operand 5720 states and 7559 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 12:30:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:50,663 INFO L93 Difference]: Finished difference Result 17060 states and 22521 transitions. [2021-11-07 12:30:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:30:50,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-11-07 12:30:50,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:50,698 INFO L225 Difference]: With dead ends: 17060 [2021-11-07 12:30:50,699 INFO L226 Difference]: Without dead ends: 11342 [2021-11-07 12:30:50,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:50,710 INFO L933 BasicCegarLoop]: 4318 mSDtfsCounter, 2145 mSDsluCounter, 6435 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2145 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.44ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.32ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:50,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2145 Valid, 10753 Invalid, 71 Unknown, 0 Unchecked, 9.44ms Time], IncrementalHoareTripleChecker [17 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 61.32ms Time] [2021-11-07 12:30:50,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2021-11-07 12:30:50,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 5720. [2021-11-07 12:30:50,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5720 states, 5660 states have (on average 1.3340989399293286) internal successors, (7551), 5719 states have internal predecessors, (7551), 0 states have call successors, (0), 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 12:30:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 7551 transitions. [2021-11-07 12:30:50,865 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 7551 transitions. Word has length 63 [2021-11-07 12:30:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:50,865 INFO L470 AbstractCegarLoop]: Abstraction has 5720 states and 7551 transitions. [2021-11-07 12:30:50,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 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 12:30:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 7551 transitions. [2021-11-07 12:30:50,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 12:30:50,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:50,867 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] [2021-11-07 12:30:50,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 12:30:50,867 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1617824831, now seen corresponding path program 1 times [2021-11-07 12:30:50,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:50,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314600423] [2021-11-07 12:30:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:51,091 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 12:30:51,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:51,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314600423] [2021-11-07 12:30:51,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314600423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:51,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:51,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 12:30:51,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121876289] [2021-11-07 12:30:51,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:51,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:51,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:51,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:51,094 INFO L87 Difference]: Start difference. First operand 5720 states and 7551 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 12:30:51,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:51,244 INFO L93 Difference]: Finished difference Result 11060 states and 14618 transitions. [2021-11-07 12:30:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-11-07 12:30:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:51,254 INFO L225 Difference]: With dead ends: 11060 [2021-11-07 12:30:51,254 INFO L226 Difference]: Without dead ends: 5342 [2021-11-07 12:30:51,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:51,263 INFO L933 BasicCegarLoop]: 2036 mSDtfsCounter, 2008 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.97ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.91ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:51,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2008 Valid, 2036 Invalid, 5 Unknown, 0 Unchecked, 2.97ms Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 6.91ms Time] [2021-11-07 12:30:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5342 states. [2021-11-07 12:30:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5342 to 5342. [2021-11-07 12:30:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5286 states have (on average 1.3350359440030268) internal successors, (7057), 5341 states have internal predecessors, (7057), 0 states have call successors, (0), 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 12:30:51,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 7057 transitions. [2021-11-07 12:30:51,367 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 7057 transitions. Word has length 63 [2021-11-07 12:30:51,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:51,368 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 7057 transitions. [2021-11-07 12:30:51,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 12:30:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 7057 transitions. [2021-11-07 12:30:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-07 12:30:51,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:51,370 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] [2021-11-07 12:30:51,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 12:30:51,370 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:51,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:51,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1271548182, now seen corresponding path program 1 times [2021-11-07 12:30:51,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:51,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542929462] [2021-11-07 12:30:51,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:51,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:51,460 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 12:30:51,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:51,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542929462] [2021-11-07 12:30:51,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542929462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:51,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:51,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:51,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133163381] [2021-11-07 12:30:51,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:51,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:51,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:51,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:51,464 INFO L87 Difference]: Start difference. First operand 5342 states and 7057 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 12:30:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:51,572 INFO L93 Difference]: Finished difference Result 10718 states and 14171 transitions. [2021-11-07 12:30:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:51,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-11-07 12:30:51,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:51,584 INFO L225 Difference]: With dead ends: 10718 [2021-11-07 12:30:51,584 INFO L226 Difference]: Without dead ends: 5378 [2021-11-07 12:30:51,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:51,594 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 918 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.64ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.38ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:51,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [918 Valid, 3154 Invalid, 14 Unknown, 0 Unchecked, 5.64ms Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 10.38ms Time] [2021-11-07 12:30:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-11-07 12:30:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2021-11-07 12:30:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5322 states have (on average 1.3355881247651258) internal successors, (7108), 5377 states have internal predecessors, (7108), 0 states have call successors, (0), 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 12:30:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 7108 transitions. [2021-11-07 12:30:51,694 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 7108 transitions. Word has length 77 [2021-11-07 12:30:51,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:51,694 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 7108 transitions. [2021-11-07 12:30:51,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 12:30:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 7108 transitions. [2021-11-07 12:30:51,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 12:30:51,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:51,696 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] [2021-11-07 12:30:51,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 12:30:51,696 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:51,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:51,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1972753161, now seen corresponding path program 1 times [2021-11-07 12:30:51,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:51,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656734969] [2021-11-07 12:30:51,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:51,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:30:51,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:51,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656734969] [2021-11-07 12:30:51,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656734969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:51,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:51,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 12:30:51,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360116518] [2021-11-07 12:30:51,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:51,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 12:30:51,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:51,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 12:30:51,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:51,874 INFO L87 Difference]: Start difference. First operand 5378 states and 7108 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:30:52,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:52,134 INFO L93 Difference]: Finished difference Result 16774 states and 22110 transitions. [2021-11-07 12:30:52,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:30:52,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-07 12:30:52,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:52,154 INFO L225 Difference]: With dead ends: 16774 [2021-11-07 12:30:52,154 INFO L226 Difference]: Without dead ends: 11398 [2021-11-07 12:30:52,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.23ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:30:52,165 INFO L933 BasicCegarLoop]: 3226 mSDtfsCounter, 5783 mSDsluCounter, 7304 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 10530 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.54ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.82ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:52,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5783 Valid, 10530 Invalid, 18 Unknown, 0 Unchecked, 9.54ms Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 22.82ms Time] [2021-11-07 12:30:52,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2021-11-07 12:30:52,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 5390. [2021-11-07 12:30:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5390 states, 5334 states have (on average 1.334833145856768) internal successors, (7120), 5389 states have internal predecessors, (7120), 0 states have call successors, (0), 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 12:30:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5390 states to 5390 states and 7120 transitions. [2021-11-07 12:30:52,316 INFO L78 Accepts]: Start accepts. Automaton has 5390 states and 7120 transitions. Word has length 80 [2021-11-07 12:30:52,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:52,316 INFO L470 AbstractCegarLoop]: Abstraction has 5390 states and 7120 transitions. [2021-11-07 12:30:52,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:30:52,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5390 states and 7120 transitions. [2021-11-07 12:30:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 12:30:52,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:52,318 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 12:30:52,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 12:30:52,318 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:52,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1905106492, now seen corresponding path program 1 times [2021-11-07 12:30:52,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:52,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762693023] [2021-11-07 12:30:52,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:52,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:52,450 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 12:30:52,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:52,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762693023] [2021-11-07 12:30:52,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762693023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:52,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:52,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:30:52,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646516886] [2021-11-07 12:30:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:52,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:52,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:52,452 INFO L87 Difference]: Start difference. First operand 5390 states and 7120 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 12:30:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:52,637 INFO L93 Difference]: Finished difference Result 14014 states and 18468 transitions. [2021-11-07 12:30:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:52,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 12:30:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:52,651 INFO L225 Difference]: With dead ends: 14014 [2021-11-07 12:30:52,651 INFO L226 Difference]: Without dead ends: 8626 [2021-11-07 12:30:52,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:30:52,659 INFO L933 BasicCegarLoop]: 3230 mSDtfsCounter, 1233 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.27ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:52,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 5264 Invalid, 7 Unknown, 0 Unchecked, 3.70ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 8.27ms Time] [2021-11-07 12:30:52,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8626 states. [2021-11-07 12:30:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8626 to 5394. [2021-11-07 12:30:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5394 states, 5338 states have (on average 1.334582240539528) internal successors, (7124), 5393 states have internal predecessors, (7124), 0 states have call successors, (0), 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 12:30:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 7124 transitions. [2021-11-07 12:30:52,799 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 7124 transitions. Word has length 85 [2021-11-07 12:30:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:52,799 INFO L470 AbstractCegarLoop]: Abstraction has 5394 states and 7124 transitions. [2021-11-07 12:30:52,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 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 12:30:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 7124 transitions. [2021-11-07 12:30:52,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 12:30:52,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:52,801 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] [2021-11-07 12:30:52,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 12:30:52,801 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1168873552, now seen corresponding path program 1 times [2021-11-07 12:30:52,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:52,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646835778] [2021-11-07 12:30:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:52,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:52,978 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 12:30:52,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:52,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646835778] [2021-11-07 12:30:52,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646835778] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:30:52,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873923189] [2021-11-07 12:30:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:52,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:30:52,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:30:52,981 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 12:30:52,983 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 12:30:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:53,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 2139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 12:30:53,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:30:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 12:30:53,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:30:53,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873923189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:53,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:30:53,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 12:30:53,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049603757] [2021-11-07 12:30:53,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:53,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:53,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:53,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:53,845 INFO L87 Difference]: Start difference. First operand 5394 states and 7124 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 12:30:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:54,852 INFO L93 Difference]: Finished difference Result 10826 states and 14306 transitions. [2021-11-07 12:30:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:54,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-11-07 12:30:54,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:54,866 INFO L225 Difference]: With dead ends: 10826 [2021-11-07 12:30:54,866 INFO L226 Difference]: Without dead ends: 5434 [2021-11-07 12:30:54,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.17ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:54,874 INFO L933 BasicCegarLoop]: 2030 mSDtfsCounter, 12 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 867.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.44ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 888.86ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:54,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4051 Invalid, 28 Unknown, 0 Unchecked, 2.44ms Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 888.86ms Time] [2021-11-07 12:30:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5434 states. [2021-11-07 12:30:55,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5434 to 5404. [2021-11-07 12:30:55,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5348 states have (on average 1.3339566192969334) internal successors, (7134), 5403 states have internal predecessors, (7134), 0 states have call successors, (0), 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 12:30:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 7134 transitions. [2021-11-07 12:30:55,042 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 7134 transitions. Word has length 91 [2021-11-07 12:30:55,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:55,043 INFO L470 AbstractCegarLoop]: Abstraction has 5404 states and 7134 transitions. [2021-11-07 12:30:55,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 12:30:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 7134 transitions. [2021-11-07 12:30:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 12:30:55,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:55,047 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:30:55,069 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 12:30:55,268 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,SelfDestructingSolverStorable11 [2021-11-07 12:30:55,268 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:55,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2129387210, now seen corresponding path program 1 times [2021-11-07 12:30:55,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:55,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658484730] [2021-11-07 12:30:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:55,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:55,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 12:30:55,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:55,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658484730] [2021-11-07 12:30:55,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658484730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:55,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:30:55,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:30:55,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968344196] [2021-11-07 12:30:55,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:55,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:30:55,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:30:55,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:30:55,360 INFO L87 Difference]: Start difference. First operand 5404 states and 7134 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 12:30:55,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:55,501 INFO L93 Difference]: Finished difference Result 10838 states and 14299 transitions. [2021-11-07 12:30:55,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:30:55,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2021-11-07 12:30:55,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:55,510 INFO L225 Difference]: With dead ends: 10838 [2021-11-07 12:30:55,510 INFO L226 Difference]: Without dead ends: 5433 [2021-11-07 12:30:55,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.74ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:55,517 INFO L933 BasicCegarLoop]: 2044 mSDtfsCounter, 19 mSDsluCounter, 4069 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.94ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.70ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:55,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 6113 Invalid, 13 Unknown, 0 Unchecked, 2.94ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 13.70ms Time] [2021-11-07 12:30:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2021-11-07 12:30:55,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 5413. [2021-11-07 12:30:55,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5413 states, 5357 states have (on average 1.333208885570282) internal successors, (7142), 5412 states have internal predecessors, (7142), 0 states have call successors, (0), 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 12:30:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 7142 transitions. [2021-11-07 12:30:55,650 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 7142 transitions. Word has length 94 [2021-11-07 12:30:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:55,650 INFO L470 AbstractCegarLoop]: Abstraction has 5413 states and 7142 transitions. [2021-11-07 12:30:55,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 12:30:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 7142 transitions. [2021-11-07 12:30:55,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-07 12:30:55,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:55,652 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] [2021-11-07 12:30:55,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 12:30:55,652 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:55,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1998774853, now seen corresponding path program 1 times [2021-11-07 12:30:55,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:55,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531718931] [2021-11-07 12:30:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:55,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 12:30:55,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:55,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531718931] [2021-11-07 12:30:55,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531718931] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:30:55,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885997413] [2021-11-07 12:30:55,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:55,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:30:55,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:30:55,771 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 12:30:55,772 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 12:30:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:56,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 2169 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 12:30:56,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:30:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 12:30:56,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:30:56,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885997413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:56,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:30:56,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 12:30:56,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626641088] [2021-11-07 12:30:56,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:56,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:56,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:56,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:56,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:56,679 INFO L87 Difference]: Start difference. First operand 5413 states and 7142 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 12:30:56,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:30:56,833 INFO L93 Difference]: Finished difference Result 10844 states and 14312 transitions. [2021-11-07 12:30:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:30:56,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2021-11-07 12:30:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:30:56,844 INFO L225 Difference]: With dead ends: 10844 [2021-11-07 12:30:56,844 INFO L226 Difference]: Without dead ends: 5433 [2021-11-07 12:30:56,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.52ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:56,851 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 3 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4057 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.48ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.98ms IncrementalHoareTripleChecker+Time [2021-11-07 12:30:56,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4057 Invalid, 22 Unknown, 0 Unchecked, 2.48ms Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 27.98ms Time] [2021-11-07 12:30:56,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5433 states. [2021-11-07 12:30:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5433 to 5423. [2021-11-07 12:30:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5367 states have (on average 1.3325880380100614) internal successors, (7152), 5422 states have internal predecessors, (7152), 0 states have call successors, (0), 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 12:30:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 7152 transitions. [2021-11-07 12:30:56,985 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 7152 transitions. Word has length 94 [2021-11-07 12:30:56,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:30:56,986 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 7152 transitions. [2021-11-07 12:30:56,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 12:30:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 7152 transitions. [2021-11-07 12:30:56,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 12:30:56,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:30:56,987 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] [2021-11-07 12:30:57,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 12:30:57,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-07 12:30:57,208 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:30:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:30:57,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1320451999, now seen corresponding path program 1 times [2021-11-07 12:30:57,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:30:57,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987377686] [2021-11-07 12:30:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:57,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:30:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:30:57,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:30:57,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987377686] [2021-11-07 12:30:57,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987377686] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:30:57,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591264815] [2021-11-07 12:30:57,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:30:57,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:30:57,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:30:57,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:30:57,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 12:30:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:30:58,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:30:58,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:30:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 12:30:58,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:30:58,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591264815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:30:58,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:30:58,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 12:30:58,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818511543] [2021-11-07 12:30:58,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:30:58,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:30:58,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:30:58,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:30:58,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:30:58,192 INFO L87 Difference]: Start difference. First operand 5423 states and 7152 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 12:31:00,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:31:00,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:00,609 INFO L93 Difference]: Finished difference Result 10918 states and 14381 transitions. [2021-11-07 12:31:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:31:00,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2021-11-07 12:31:00,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:00,618 INFO L225 Difference]: With dead ends: 10918 [2021-11-07 12:31:00,618 INFO L226 Difference]: Without dead ends: 5497 [2021-11-07 12:31:00,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.23ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:00,624 INFO L933 BasicCegarLoop]: 3386 mSDtfsCounter, 1787 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2134.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 5275 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.01ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2272.55ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:00,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1787 Valid, 5275 Invalid, 177 Unknown, 0 Unchecked, 6.01ms Time], IncrementalHoareTripleChecker [53 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 2272.55ms Time] [2021-11-07 12:31:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2021-11-07 12:31:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5401. [2021-11-07 12:31:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 5345 states have (on average 1.317492984097287) internal successors, (7042), 5400 states have internal predecessors, (7042), 0 states have call successors, (0), 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 12:31:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7042 transitions. [2021-11-07 12:31:00,758 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7042 transitions. Word has length 96 [2021-11-07 12:31:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:00,758 INFO L470 AbstractCegarLoop]: Abstraction has 5401 states and 7042 transitions. [2021-11-07 12:31:00,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 12:31:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7042 transitions. [2021-11-07 12:31:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 12:31:00,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:00,759 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] [2021-11-07 12:31:00,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:00,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:00,971 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:00,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:00,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2021516577, now seen corresponding path program 1 times [2021-11-07 12:31:00,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:00,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13990428] [2021-11-07 12:31:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:00,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:31:01,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:01,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13990428] [2021-11-07 12:31:01,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13990428] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:01,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164293344] [2021-11-07 12:31:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:01,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:01,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:01,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:01,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 12:31:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:01,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 2178 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:31:01,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:31:01,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 12:31:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 12:31:02,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164293344] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 12:31:02,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 12:31:02,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 12:31:02,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346559509] [2021-11-07 12:31:02,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 12:31:02,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 12:31:02,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:02,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 12:31:02,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:02,084 INFO L87 Difference]: Start difference. First operand 5401 states and 7042 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 12:31:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:02,591 INFO L93 Difference]: Finished difference Result 23636 states and 30630 transitions. [2021-11-07 12:31:02,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 12:31:02,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 96 [2021-11-07 12:31:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:02,611 INFO L225 Difference]: With dead ends: 23636 [2021-11-07 12:31:02,611 INFO L226 Difference]: Without dead ends: 18237 [2021-11-07 12:31:02,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.33ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:02,619 INFO L933 BasicCegarLoop]: 3230 mSDtfsCounter, 4932 mSDsluCounter, 12904 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4932 SdHoareTripleChecker+Valid, 16134 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.15ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.99ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:02,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4932 Valid, 16134 Invalid, 27 Unknown, 0 Unchecked, 10.15ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 29.99ms Time] [2021-11-07 12:31:02,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18237 states. [2021-11-07 12:31:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18237 to 5509. [2021-11-07 12:31:02,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5509 states, 5453 states have (on average 1.315606088391711) internal successors, (7174), 5508 states have internal predecessors, (7174), 0 states have call successors, (0), 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 12:31:02,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 7174 transitions. [2021-11-07 12:31:02,815 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 7174 transitions. Word has length 96 [2021-11-07 12:31:02,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:02,815 INFO L470 AbstractCegarLoop]: Abstraction has 5509 states and 7174 transitions. [2021-11-07 12:31:02,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 12:31:02,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 7174 transitions. [2021-11-07 12:31:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 12:31:02,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:02,817 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:02,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:03,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 12:31:03,029 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:03,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:03,029 INFO L85 PathProgramCache]: Analyzing trace with hash 574846565, now seen corresponding path program 2 times [2021-11-07 12:31:03,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:03,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276847909] [2021-11-07 12:31:03,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:03,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-07 12:31:03,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:03,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276847909] [2021-11-07 12:31:03,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276847909] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:03,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131661659] [2021-11-07 12:31:03,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 12:31:03,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:03,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:03,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:03,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 12:31:03,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 12:31:03,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 12:31:03,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 12:31:03,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 12:31:03,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:31:03,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131661659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:03,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:31:03,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-07 12:31:03,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619114615] [2021-11-07 12:31:03,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:03,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 12:31:03,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:03,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 12:31:03,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:03,955 INFO L87 Difference]: Start difference. First operand 5509 states and 7174 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 12:31:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:04,780 INFO L93 Difference]: Finished difference Result 9519 states and 12454 transitions. [2021-11-07 12:31:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:31:04,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 114 [2021-11-07 12:31:04,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:04,790 INFO L225 Difference]: With dead ends: 9519 [2021-11-07 12:31:04,790 INFO L226 Difference]: Without dead ends: 9211 [2021-11-07 12:31:04,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 27.11ms TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-07 12:31:04,793 INFO L933 BasicCegarLoop]: 3333 mSDtfsCounter, 6425 mSDsluCounter, 7059 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 420.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 10392 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.52ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 473.48ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:04,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6425 Valid, 10392 Invalid, 337 Unknown, 0 Unchecked, 9.52ms Time], IncrementalHoareTripleChecker [40 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 473.48ms Time] [2021-11-07 12:31:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9211 states. [2021-11-07 12:31:04,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9211 to 5201. [2021-11-07 12:31:04,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5178 states have (on average 1.3068752414059484) internal successors, (6767), 5200 states have internal predecessors, (6767), 0 states have call successors, (0), 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 12:31:04,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 6767 transitions. [2021-11-07 12:31:04,967 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 6767 transitions. Word has length 114 [2021-11-07 12:31:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:04,967 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 6767 transitions. [2021-11-07 12:31:04,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 12:31:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 6767 transitions. [2021-11-07 12:31:04,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-07 12:31:04,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:04,970 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:04,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:05,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-07 12:31:05,183 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash -175346826, now seen corresponding path program 1 times [2021-11-07 12:31:05,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:05,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933140787] [2021-11-07 12:31:05,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:05,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 12:31:05,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:05,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933140787] [2021-11-07 12:31:05,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933140787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:05,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:05,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:31:05,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477250162] [2021-11-07 12:31:05,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:05,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:31:05,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:05,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:31:05,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:31:05,305 INFO L87 Difference]: Start difference. First operand 5201 states and 6767 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:05,531 INFO L93 Difference]: Finished difference Result 10424 states and 13564 transitions. [2021-11-07 12:31:05,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:31:05,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-07 12:31:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:05,537 INFO L225 Difference]: With dead ends: 10424 [2021-11-07 12:31:05,537 INFO L226 Difference]: Without dead ends: 5225 [2021-11-07 12:31:05,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:31:05,542 INFO L933 BasicCegarLoop]: 1967 mSDtfsCounter, 4 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.90ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.26ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:05,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3928 Invalid, 18 Unknown, 0 Unchecked, 1.90ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 13.26ms Time] [2021-11-07 12:31:05,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2021-11-07 12:31:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 5209. [2021-11-07 12:31:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5186 states have (on average 1.3064018511376783) internal successors, (6775), 5208 states have internal predecessors, (6775), 0 states have call successors, (0), 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 12:31:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 6775 transitions. [2021-11-07 12:31:05,698 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 6775 transitions. Word has length 133 [2021-11-07 12:31:05,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:05,698 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 6775 transitions. [2021-11-07 12:31:05,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:05,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 6775 transitions. [2021-11-07 12:31:05,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 12:31:05,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:05,701 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:05,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 12:31:05,701 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:05,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1513139953, now seen corresponding path program 1 times [2021-11-07 12:31:05,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:05,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146760016] [2021-11-07 12:31:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:05,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 12:31:05,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:05,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146760016] [2021-11-07 12:31:05,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146760016] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:05,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815349232] [2021-11-07 12:31:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:05,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:05,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:05,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:05,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 12:31:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:06,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 2437 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 12:31:06,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 12:31:06,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:31:06,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815349232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:06,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:31:06,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 12:31:06,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628300924] [2021-11-07 12:31:06,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:06,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:31:06,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:06,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:31:06,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:06,695 INFO L87 Difference]: Start difference. First operand 5209 states and 6775 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:06,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:06,866 INFO L93 Difference]: Finished difference Result 10452 states and 13596 transitions. [2021-11-07 12:31:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:31:06,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-07 12:31:06,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:06,872 INFO L225 Difference]: With dead ends: 10452 [2021-11-07 12:31:06,872 INFO L226 Difference]: Without dead ends: 5245 [2021-11-07 12:31:06,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.57ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:06,878 INFO L933 BasicCegarLoop]: 1964 mSDtfsCounter, 6 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.96ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:06,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 3919 Invalid, 28 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 21.96ms Time] [2021-11-07 12:31:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5245 states. [2021-11-07 12:31:07,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5245 to 5221. [2021-11-07 12:31:07,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5198 states have (on average 1.3056944978838014) internal successors, (6787), 5220 states have internal predecessors, (6787), 0 states have call successors, (0), 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 12:31:07,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 6787 transitions. [2021-11-07 12:31:07,067 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 6787 transitions. Word has length 136 [2021-11-07 12:31:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:07,067 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 6787 transitions. [2021-11-07 12:31:07,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:07,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 6787 transitions. [2021-11-07 12:31:07,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 12:31:07,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:07,070 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:07,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:07,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:07,279 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash -858689725, now seen corresponding path program 1 times [2021-11-07 12:31:07,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:07,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355410296] [2021-11-07 12:31:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:07,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 12:31:07,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:07,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355410296] [2021-11-07 12:31:07,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355410296] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:07,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571577928] [2021-11-07 12:31:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:07,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:07,416 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:07,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 12:31:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:08,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:31:08,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 12:31:08,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:31:08,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571577928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:08,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:31:08,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 12:31:08,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225668095] [2021-11-07 12:31:08,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:08,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:31:08,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:08,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:31:08,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:08,235 INFO L87 Difference]: Start difference. First operand 5221 states and 6787 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 12:31:10,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:31:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:10,594 INFO L93 Difference]: Finished difference Result 10484 states and 13605 transitions. [2021-11-07 12:31:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:31:10,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 139 [2021-11-07 12:31:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:10,600 INFO L225 Difference]: With dead ends: 10484 [2021-11-07 12:31:10,600 INFO L226 Difference]: Without dead ends: 5265 [2021-11-07 12:31:10,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.94ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:10,606 INFO L933 BasicCegarLoop]: 3788 mSDtfsCounter, 1917 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2053.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1917 SdHoareTripleChecker+Valid, 5722 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.83ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2182.19ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:10,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1917 Valid, 5722 Invalid, 43 Unknown, 0 Unchecked, 3.83ms Time], IncrementalHoareTripleChecker [13 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 2182.19ms Time] [2021-11-07 12:31:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2021-11-07 12:31:10,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 5192. [2021-11-07 12:31:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5169 states have (on average 1.3033468756045656) internal successors, (6737), 5191 states have internal predecessors, (6737), 0 states have call successors, (0), 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 12:31:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 6737 transitions. [2021-11-07 12:31:10,794 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 6737 transitions. Word has length 139 [2021-11-07 12:31:10,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:10,794 INFO L470 AbstractCegarLoop]: Abstraction has 5192 states and 6737 transitions. [2021-11-07 12:31:10,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 12:31:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 6737 transitions. [2021-11-07 12:31:10,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 12:31:10,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:10,797 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:10,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:11,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:11,008 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:11,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:11,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1668036351, now seen corresponding path program 1 times [2021-11-07 12:31:11,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:11,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670453855] [2021-11-07 12:31:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:11,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 12:31:11,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:11,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670453855] [2021-11-07 12:31:11,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670453855] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:11,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001088260] [2021-11-07 12:31:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:11,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:11,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:11,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:11,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 12:31:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:11,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:31:11,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 12:31:11,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 12:31:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 12:31:12,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001088260] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 12:31:12,164 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 12:31:12,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 12:31:12,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026437961] [2021-11-07 12:31:12,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 12:31:12,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 12:31:12,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:12,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 12:31:12,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:12,165 INFO L87 Difference]: Start difference. First operand 5192 states and 6737 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 0 states have call successors, (0), 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 12:31:12,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:12,363 INFO L93 Difference]: Finished difference Result 10454 states and 13568 transitions. [2021-11-07 12:31:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 12:31:12,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 0 states have call successors, (0), 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 139 [2021-11-07 12:31:12,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:12,369 INFO L225 Difference]: With dead ends: 10454 [2021-11-07 12:31:12,369 INFO L226 Difference]: Without dead ends: 5264 [2021-11-07 12:31:12,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 14.02ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:12,375 INFO L933 BasicCegarLoop]: 1967 mSDtfsCounter, 24 mSDsluCounter, 3922 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5889 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.46ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.10ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:12,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 5889 Invalid, 55 Unknown, 0 Unchecked, 2.46ms Time], IncrementalHoareTripleChecker [15 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 36.10ms Time] [2021-11-07 12:31:12,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2021-11-07 12:31:12,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 5264. [2021-11-07 12:31:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5241 states have (on average 1.2991795458881892) internal successors, (6809), 5263 states have internal predecessors, (6809), 0 states have call successors, (0), 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 12:31:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 6809 transitions. [2021-11-07 12:31:12,614 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 6809 transitions. Word has length 139 [2021-11-07 12:31:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:12,614 INFO L470 AbstractCegarLoop]: Abstraction has 5264 states and 6809 transitions. [2021-11-07 12:31:12,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 0 states have call successors, (0), 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 12:31:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 6809 transitions. [2021-11-07 12:31:12,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-07 12:31:12,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:12,617 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:12,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:12,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-07 12:31:12,838 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1852175994, now seen corresponding path program 2 times [2021-11-07 12:31:12,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:12,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466945764] [2021-11-07 12:31:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:12,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 12:31:12,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:12,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466945764] [2021-11-07 12:31:12,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466945764] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:12,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943303322] [2021-11-07 12:31:12,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 12:31:12,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:12,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:12,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:12,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 12:31:13,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 12:31:13,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 12:31:13,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 12:31:13,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-07 12:31:13,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:31:13,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943303322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:13,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:31:13,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2021-11-07 12:31:13,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017297888] [2021-11-07 12:31:13,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:13,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 12:31:13,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:13,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 12:31:13,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:13,776 INFO L87 Difference]: Start difference. First operand 5264 states and 6809 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 12:31:14,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:14,359 INFO L93 Difference]: Finished difference Result 15448 states and 19986 transitions. [2021-11-07 12:31:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 12:31:14,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 148 [2021-11-07 12:31:14,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:14,375 INFO L225 Difference]: With dead ends: 15448 [2021-11-07 12:31:14,375 INFO L226 Difference]: Without dead ends: 15432 [2021-11-07 12:31:14,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.92ms TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-07 12:31:14,378 INFO L933 BasicCegarLoop]: 4003 mSDtfsCounter, 11221 mSDsluCounter, 11536 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11221 SdHoareTripleChecker+Valid, 15539 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.36ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.26ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:14,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11221 Valid, 15539 Invalid, 60 Unknown, 0 Unchecked, 12.36ms Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 45.26ms Time] [2021-11-07 12:31:14,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15432 states. [2021-11-07 12:31:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15432 to 5248. [2021-11-07 12:31:14,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5227 states have (on average 1.2984503539315095) internal successors, (6787), 5247 states have internal predecessors, (6787), 0 states have call successors, (0), 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 12:31:14,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 6787 transitions. [2021-11-07 12:31:14,607 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 6787 transitions. Word has length 148 [2021-11-07 12:31:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:14,607 INFO L470 AbstractCegarLoop]: Abstraction has 5248 states and 6787 transitions. [2021-11-07 12:31:14,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 0 states have call successors, (0), 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 12:31:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 6787 transitions. [2021-11-07 12:31:14,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-07 12:31:14,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:14,610 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:14,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:14,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:14,823 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:14,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash -424024283, now seen corresponding path program 1 times [2021-11-07 12:31:14,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:14,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763565072] [2021-11-07 12:31:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:14,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-07 12:31:14,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:14,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763565072] [2021-11-07 12:31:14,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763565072] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:14,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809262937] [2021-11-07 12:31:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:14,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:14,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:14,943 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:14,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 12:31:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:15,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 2680 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:31:15,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-07 12:31:15,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 12:31:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-07 12:31:16,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809262937] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 12:31:16,018 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 12:31:16,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 12:31:16,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116615793] [2021-11-07 12:31:16,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 12:31:16,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 12:31:16,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:16,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 12:31:16,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:16,019 INFO L87 Difference]: Start difference. First operand 5248 states and 6787 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 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 12:31:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:16,309 INFO L93 Difference]: Finished difference Result 10554 states and 13662 transitions. [2021-11-07 12:31:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 12:31:16,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 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 151 [2021-11-07 12:31:16,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:16,314 INFO L225 Difference]: With dead ends: 10554 [2021-11-07 12:31:16,314 INFO L226 Difference]: Without dead ends: 5308 [2021-11-07 12:31:16,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.42ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:16,318 INFO L933 BasicCegarLoop]: 1963 mSDtfsCounter, 14 mSDsluCounter, 7816 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 9779 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.68ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.23ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:16,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 9779 Invalid, 73 Unknown, 0 Unchecked, 3.68ms Time], IncrementalHoareTripleChecker [22 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 56.23ms Time] [2021-11-07 12:31:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5308 states. [2021-11-07 12:31:16,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5308 to 5308. [2021-11-07 12:31:16,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5287 states have (on average 1.295063362965765) internal successors, (6847), 5307 states have internal predecessors, (6847), 0 states have call successors, (0), 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 12:31:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 6847 transitions. [2021-11-07 12:31:16,517 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 6847 transitions. Word has length 151 [2021-11-07 12:31:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:16,517 INFO L470 AbstractCegarLoop]: Abstraction has 5308 states and 6847 transitions. [2021-11-07 12:31:16,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 0 states have call successors, (0), 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 12:31:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 6847 transitions. [2021-11-07 12:31:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-07 12:31:16,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:16,520 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:16,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:16,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-07 12:31:16,728 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1159067129, now seen corresponding path program 2 times [2021-11-07 12:31:16,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:16,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153686577] [2021-11-07 12:31:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:16,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-07 12:31:16,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:16,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153686577] [2021-11-07 12:31:16,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153686577] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:16,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979842620] [2021-11-07 12:31:16,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 12:31:16,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:16,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:16,872 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:16,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 12:31:17,551 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 12:31:17,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 12:31:17,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 12:31:17,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-07 12:31:17,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 12:31:17,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979842620] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:17,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 12:31:17,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2021-11-07 12:31:17,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437441175] [2021-11-07 12:31:17,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:17,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 12:31:17,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 12:31:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-07 12:31:17,828 INFO L87 Difference]: Start difference. First operand 5308 states and 6847 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:24,922 INFO L93 Difference]: Finished difference Result 44320 states and 56801 transitions. [2021-11-07 12:31:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-07 12:31:24,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-07 12:31:24,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:24,982 INFO L225 Difference]: With dead ends: 44320 [2021-11-07 12:31:24,982 INFO L226 Difference]: Without dead ends: 39014 [2021-11-07 12:31:25,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 284.89ms TimeCoverageRelationStatistics Valid=329, Invalid=1003, Unknown=0, NotChecked=0, Total=1332 [2021-11-07 12:31:25,000 INFO L933 BasicCegarLoop]: 21994 mSDtfsCounter, 13374 mSDsluCounter, 78831 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3954.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13374 SdHoareTripleChecker+Valid, 100825 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.73ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4384.80ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:25,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13374 Valid, 100825 Invalid, 2553 Unknown, 0 Unchecked, 76.73ms Time], IncrementalHoareTripleChecker [79 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 4384.80ms Time] [2021-11-07 12:31:25,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39014 states. [2021-11-07 12:31:25,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39014 to 3170. [2021-11-07 12:31:25,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 3161 states have (on average 1.2828218918063903) internal successors, (4055), 3169 states have internal predecessors, (4055), 0 states have call successors, (0), 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 12:31:25,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4055 transitions. [2021-11-07 12:31:25,445 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4055 transitions. Word has length 157 [2021-11-07 12:31:25,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:25,445 INFO L470 AbstractCegarLoop]: Abstraction has 3170 states and 4055 transitions. [2021-11-07 12:31:25,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:25,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4055 transitions. [2021-11-07 12:31:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-07 12:31:25,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:25,447 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:25,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:25,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 12:31:25,663 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:25,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:25,664 INFO L85 PathProgramCache]: Analyzing trace with hash 717826682, now seen corresponding path program 1 times [2021-11-07 12:31:25,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:25,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949322219] [2021-11-07 12:31:25,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:25,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 12:31:25,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:25,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949322219] [2021-11-07 12:31:25,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949322219] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 12:31:25,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770406915] [2021-11-07 12:31:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:25,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 12:31:25,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 12:31:25,802 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 12:31:25,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 12:31:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:26,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 12:31:26,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 12:31:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 12:31:26,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 12:31:26,890 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 12:31:26,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770406915] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 12:31:26,890 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 12:31:26,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 12:31:26,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416909672] [2021-11-07 12:31:26,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 12:31:26,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 12:31:26,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:26,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 12:31:26,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:26,891 INFO L87 Difference]: Start difference. First operand 3170 states and 4055 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 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 12:31:27,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:27,176 INFO L93 Difference]: Finished difference Result 6392 states and 8180 transitions. [2021-11-07 12:31:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 12:31:27,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 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 165 [2021-11-07 12:31:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:27,181 INFO L225 Difference]: With dead ends: 6392 [2021-11-07 12:31:27,181 INFO L226 Difference]: Without dead ends: 3224 [2021-11-07 12:31:27,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.28ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:27,187 INFO L933 BasicCegarLoop]: 1933 mSDtfsCounter, 44 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.21ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.83ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:27,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 3857 Invalid, 74 Unknown, 0 Unchecked, 2.21ms Time], IncrementalHoareTripleChecker [29 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 53.83ms Time] [2021-11-07 12:31:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2021-11-07 12:31:27,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 3224. [2021-11-07 12:31:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 3215 states have (on average 1.278071539657854) internal successors, (4109), 3223 states have internal predecessors, (4109), 0 states have call successors, (0), 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 12:31:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4109 transitions. [2021-11-07 12:31:27,418 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4109 transitions. Word has length 165 [2021-11-07 12:31:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:27,419 INFO L470 AbstractCegarLoop]: Abstraction has 3224 states and 4109 transitions. [2021-11-07 12:31:27,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 0 states have call successors, (0), 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 12:31:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4109 transitions. [2021-11-07 12:31:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-07 12:31:27,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:27,421 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:27,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 12:31:27,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-07 12:31:27,622 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:27,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1479354432, now seen corresponding path program 2 times [2021-11-07 12:31:27,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:27,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583936819] [2021-11-07 12:31:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:27,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:27,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:27,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583936819] [2021-11-07 12:31:27,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583936819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:27,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:27,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 12:31:27,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353565004] [2021-11-07 12:31:27,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:27,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 12:31:27,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:27,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 12:31:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:27,780 INFO L87 Difference]: Start difference. First operand 3224 states and 4109 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 12:31:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:28,530 INFO L93 Difference]: Finished difference Result 10942 states and 13983 transitions. [2021-11-07 12:31:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 12:31:28,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 174 [2021-11-07 12:31:28,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:28,544 INFO L225 Difference]: With dead ends: 10942 [2021-11-07 12:31:28,544 INFO L226 Difference]: Without dead ends: 9412 [2021-11-07 12:31:28,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.33ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 12:31:28,549 INFO L933 BasicCegarLoop]: 3837 mSDtfsCounter, 11226 mSDsluCounter, 11168 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11226 SdHoareTripleChecker+Valid, 15005 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.08ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.55ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:28,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11226 Valid, 15005 Invalid, 58 Unknown, 0 Unchecked, 13.08ms Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 60.55ms Time] [2021-11-07 12:31:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9412 states. [2021-11-07 12:31:28,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9412 to 3220. [2021-11-07 12:31:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3211 states have (on average 1.2777950794145125) internal successors, (4103), 3219 states have internal predecessors, (4103), 0 states have call successors, (0), 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 12:31:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4103 transitions. [2021-11-07 12:31:28,807 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4103 transitions. Word has length 174 [2021-11-07 12:31:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:28,807 INFO L470 AbstractCegarLoop]: Abstraction has 3220 states and 4103 transitions. [2021-11-07 12:31:28,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 0 states have call successors, (0), 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 12:31:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4103 transitions. [2021-11-07 12:31:28,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-07 12:31:28,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:28,809 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:28,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 12:31:28,809 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash 751559794, now seen corresponding path program 1 times [2021-11-07 12:31:28,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:28,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972889897] [2021-11-07 12:31:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:28,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:28,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:28,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972889897] [2021-11-07 12:31:28,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972889897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:28,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:28,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 12:31:28,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152484994] [2021-11-07 12:31:28,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:28,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 12:31:28,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 12:31:28,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:31:28,954 INFO L87 Difference]: Start difference. First operand 3220 states and 4103 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 12:31:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:29,374 INFO L93 Difference]: Finished difference Result 8868 states and 11291 transitions. [2021-11-07 12:31:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 12:31:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 179 [2021-11-07 12:31:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:29,382 INFO L225 Difference]: With dead ends: 8868 [2021-11-07 12:31:29,382 INFO L226 Difference]: Without dead ends: 5650 [2021-11-07 12:31:29,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 12:31:29,387 INFO L933 BasicCegarLoop]: 3380 mSDtfsCounter, 1911 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 4837 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.40ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.95ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:29,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1911 Valid, 4837 Invalid, 13 Unknown, 0 Unchecked, 3.40ms Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 13.95ms Time] [2021-11-07 12:31:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5650 states. [2021-11-07 12:31:29,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5650 to 3218. [2021-11-07 12:31:29,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3209 states have (on average 1.2773449672795263) internal successors, (4099), 3217 states have internal predecessors, (4099), 0 states have call successors, (0), 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 12:31:29,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 4099 transitions. [2021-11-07 12:31:29,651 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 4099 transitions. Word has length 179 [2021-11-07 12:31:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:29,651 INFO L470 AbstractCegarLoop]: Abstraction has 3218 states and 4099 transitions. [2021-11-07 12:31:29,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 12:31:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 4099 transitions. [2021-11-07 12:31:29,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-07 12:31:29,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:29,653 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:29,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 12:31:29,653 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:29,654 INFO L85 PathProgramCache]: Analyzing trace with hash 109419871, now seen corresponding path program 1 times [2021-11-07 12:31:29,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:29,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998548998] [2021-11-07 12:31:29,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:29,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:29,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:29,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998548998] [2021-11-07 12:31:29,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998548998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:29,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:29,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:31:29,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647016001] [2021-11-07 12:31:29,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:29,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:31:29,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:29,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:31:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:31:29,810 INFO L87 Difference]: Start difference. First operand 3218 states and 4099 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 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 12:31:31,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:31:34,280 WARN L515 Checker$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 12:31:36,468 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 12:31:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:36,946 INFO L93 Difference]: Finished difference Result 13094 states and 16783 transitions. [2021-11-07 12:31:36,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:31:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 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 191 [2021-11-07 12:31:36,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:36,959 INFO L225 Difference]: With dead ends: 13094 [2021-11-07 12:31:36,959 INFO L226 Difference]: Without dead ends: 9878 [2021-11-07 12:31:36,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.21ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:36,965 INFO L933 BasicCegarLoop]: 4263 mSDtfsCounter, 3998 mSDsluCounter, 6064 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6209.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3998 SdHoareTripleChecker+Valid, 10327 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.60ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6284.48ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:36,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3998 Valid, 10327 Invalid, 181 Unknown, 0 Unchecked, 9.60ms Time], IncrementalHoareTripleChecker [10 Valid, 168 Invalid, 3 Unknown, 0 Unchecked, 6284.48ms Time] [2021-11-07 12:31:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9878 states. [2021-11-07 12:31:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9878 to 3222. [2021-11-07 12:31:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3213 states have (on average 1.2769996887643946) internal successors, (4103), 3221 states have internal predecessors, (4103), 0 states have call successors, (0), 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 12:31:37,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4103 transitions. [2021-11-07 12:31:37,328 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4103 transitions. Word has length 191 [2021-11-07 12:31:37,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:37,328 INFO L470 AbstractCegarLoop]: Abstraction has 3222 states and 4103 transitions. [2021-11-07 12:31:37,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 0 states have call successors, (0), 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 12:31:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4103 transitions. [2021-11-07 12:31:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-07 12:31:37,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:37,331 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 12:31:37,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 12:31:37,331 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:37,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:37,331 INFO L85 PathProgramCache]: Analyzing trace with hash 601114797, now seen corresponding path program 1 times [2021-11-07 12:31:37,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:37,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753765749] [2021-11-07 12:31:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:37,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:37,726 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:37,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:37,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753765749] [2021-11-07 12:31:37,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753765749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:37,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:37,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 12:31:37,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807282769] [2021-11-07 12:31:37,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:37,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 12:31:37,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:37,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 12:31:37,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 12:31:37,728 INFO L87 Difference]: Start difference. First operand 3222 states and 4103 transitions. Second operand has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 0 states have call successors, (0), 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 12:31:39,925 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 12:31:42,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 12:31:46,383 WARN L515 Checker$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 12:31:48,420 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 12:31:48,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:48,715 INFO L93 Difference]: Finished difference Result 21008 states and 27021 transitions. [2021-11-07 12:31:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 12:31:48,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 0 states have call successors, (0), 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 199 [2021-11-07 12:31:48,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:48,755 INFO L225 Difference]: With dead ends: 21008 [2021-11-07 12:31:48,755 INFO L226 Difference]: Without dead ends: 17788 [2021-11-07 12:31:48,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 84.35ms TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-11-07 12:31:48,762 INFO L933 BasicCegarLoop]: 6713 mSDtfsCounter, 10067 mSDsluCounter, 22298 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 51 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8888.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10067 SdHoareTripleChecker+Valid, 29011 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.98ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9068.06ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:48,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10067 Valid, 29011 Invalid, 985 Unknown, 0 Unchecked, 26.98ms Time], IncrementalHoareTripleChecker [51 Valid, 930 Invalid, 4 Unknown, 0 Unchecked, 9068.06ms Time] [2021-11-07 12:31:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17788 states. [2021-11-07 12:31:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17788 to 3222. [2021-11-07 12:31:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3213 states have (on average 1.2769996887643946) internal successors, (4103), 3221 states have internal predecessors, (4103), 0 states have call successors, (0), 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 12:31:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4103 transitions. [2021-11-07 12:31:49,156 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4103 transitions. Word has length 199 [2021-11-07 12:31:49,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:49,157 INFO L470 AbstractCegarLoop]: Abstraction has 3222 states and 4103 transitions. [2021-11-07 12:31:49,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.428571428571427) internal successors, (178), 7 states have internal predecessors, (178), 0 states have call successors, (0), 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 12:31:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4103 transitions. [2021-11-07 12:31:49,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-07 12:31:49,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:49,159 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:49,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 12:31:49,159 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:49,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:49,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1985062495, now seen corresponding path program 1 times [2021-11-07 12:31:49,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:49,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038581255] [2021-11-07 12:31:49,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:49,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:49,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:49,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038581255] [2021-11-07 12:31:49,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038581255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:49,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:49,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 12:31:49,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864182896] [2021-11-07 12:31:49,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:49,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 12:31:49,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:49,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 12:31:49,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 12:31:49,305 INFO L87 Difference]: Start difference. First operand 3222 states and 4103 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 12:31:50,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:50,413 INFO L93 Difference]: Finished difference Result 12238 states and 15675 transitions. [2021-11-07 12:31:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 12:31:50,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 205 [2021-11-07 12:31:50,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:50,423 INFO L225 Difference]: With dead ends: 12238 [2021-11-07 12:31:50,423 INFO L226 Difference]: Without dead ends: 9018 [2021-11-07 12:31:50,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.22ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:50,427 INFO L933 BasicCegarLoop]: 3947 mSDtfsCounter, 3441 mSDsluCounter, 5765 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3441 SdHoareTripleChecker+Valid, 9712 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.04ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.81ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:50,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3441 Valid, 9712 Invalid, 160 Unknown, 0 Unchecked, 8.04ms Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 164.81ms Time] [2021-11-07 12:31:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9018 states. [2021-11-07 12:31:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9018 to 3226. [2021-11-07 12:31:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3226 states, 3217 states have (on average 1.2766552688840536) internal successors, (4107), 3225 states have internal predecessors, (4107), 0 states have call successors, (0), 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 12:31:50,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3226 states to 3226 states and 4107 transitions. [2021-11-07 12:31:50,749 INFO L78 Accepts]: Start accepts. Automaton has 3226 states and 4107 transitions. Word has length 205 [2021-11-07 12:31:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:50,750 INFO L470 AbstractCegarLoop]: Abstraction has 3226 states and 4107 transitions. [2021-11-07 12:31:50,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 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 12:31:50,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3226 states and 4107 transitions. [2021-11-07 12:31:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-07 12:31:50,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:50,752 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:50,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-07 12:31:50,753 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:50,753 INFO L85 PathProgramCache]: Analyzing trace with hash 103478850, now seen corresponding path program 1 times [2021-11-07 12:31:50,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:50,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096039522] [2021-11-07 12:31:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:50,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:50,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:50,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096039522] [2021-11-07 12:31:50,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096039522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:50,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:50,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 12:31:50,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834507091] [2021-11-07 12:31:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:50,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 12:31:50,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:50,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 12:31:50,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:50,981 INFO L87 Difference]: Start difference. First operand 3226 states and 4107 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 0 states have call successors, (0), 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 12:31:51,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:51,935 INFO L93 Difference]: Finished difference Result 7803 states and 9965 transitions. [2021-11-07 12:31:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 12:31:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 0 states have call successors, (0), 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 208 [2021-11-07 12:31:51,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:51,944 INFO L225 Difference]: With dead ends: 7803 [2021-11-07 12:31:51,945 INFO L226 Difference]: Without dead ends: 7743 [2021-11-07 12:31:51,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.42ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 12:31:51,946 INFO L933 BasicCegarLoop]: 5571 mSDtfsCounter, 9086 mSDsluCounter, 11193 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9086 SdHoareTripleChecker+Valid, 16764 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.99ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.75ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:51,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9086 Valid, 16764 Invalid, 66 Unknown, 0 Unchecked, 13.99ms Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 78.75ms Time] [2021-11-07 12:31:51,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7743 states. [2021-11-07 12:31:52,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7743 to 3166. [2021-11-07 12:31:52,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 3161 states have (on average 1.2771274913002215) internal successors, (4037), 3165 states have internal predecessors, (4037), 0 states have call successors, (0), 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 12:31:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 4037 transitions. [2021-11-07 12:31:52,285 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 4037 transitions. Word has length 208 [2021-11-07 12:31:52,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:52,286 INFO L470 AbstractCegarLoop]: Abstraction has 3166 states and 4037 transitions. [2021-11-07 12:31:52,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 0 states have call successors, (0), 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 12:31:52,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 4037 transitions. [2021-11-07 12:31:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-07 12:31:52,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 12:31:52,288 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:52,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-07 12:31:52,289 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-07 12:31:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 12:31:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1356340490, now seen corresponding path program 1 times [2021-11-07 12:31:52,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 12:31:52,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589209853] [2021-11-07 12:31:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 12:31:52,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 12:31:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 12:31:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-07 12:31:52,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 12:31:52,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589209853] [2021-11-07 12:31:52,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589209853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 12:31:52,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 12:31:52,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 12:31:52,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476657431] [2021-11-07 12:31:52,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 12:31:52,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 12:31:52,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 12:31:52,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 12:31:52,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 12:31:52,449 INFO L87 Difference]: Start difference. First operand 3166 states and 4037 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 0 states have call successors, (0), 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 12:31:53,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 12:31:53,333 INFO L93 Difference]: Finished difference Result 7743 states and 9895 transitions. [2021-11-07 12:31:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 12:31:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 0 states have call successors, (0), 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 225 [2021-11-07 12:31:53,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 12:31:53,334 INFO L225 Difference]: With dead ends: 7743 [2021-11-07 12:31:53,334 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 12:31:53,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.06ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 12:31:53,339 INFO L933 BasicCegarLoop]: 5552 mSDtfsCounter, 9286 mSDsluCounter, 10928 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9286 SdHoareTripleChecker+Valid, 16480 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.02ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.46ms IncrementalHoareTripleChecker+Time [2021-11-07 12:31:53,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9286 Valid, 16480 Invalid, 64 Unknown, 0 Unchecked, 14.02ms Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 72.46ms Time] [2021-11-07 12:31:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 12:31:53,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 12:31:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 12:31:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 12:31:53,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2021-11-07 12:31:53,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 12:31:53,340 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 12:31:53,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 0 states have call successors, (0), 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 12:31:53,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 12:31:53,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 12:31:53,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (61 of 62 remaining) [2021-11-07 12:31:53,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (60 of 62 remaining) [2021-11-07 12:31:53,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (59 of 62 remaining) [2021-11-07 12:31:53,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (58 of 62 remaining) [2021-11-07 12:31:53,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (57 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (56 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (55 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (54 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (53 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (52 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (51 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (50 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (49 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (48 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (47 of 62 remaining) [2021-11-07 12:31:53,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (46 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (45 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (44 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (43 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (42 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (41 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (40 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (39 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (38 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (37 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (36 of 62 remaining) [2021-11-07 12:31:53,345 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (35 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (34 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (33 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (32 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (31 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (30 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (29 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (28 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (27 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (26 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (25 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (24 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (23 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (22 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION (21 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION (20 of 62 remaining) [2021-11-07 12:31:53,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION (19 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION (18 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION (17 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION (16 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION (15 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION (14 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (13 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION (12 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION (11 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION (10 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION (9 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION (8 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION (7 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION (6 of 62 remaining) [2021-11-07 12:31:53,347 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION (5 of 62 remaining) [2021-11-07 12:31:53,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION (4 of 62 remaining) [2021-11-07 12:31:53,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION (3 of 62 remaining) [2021-11-07 12:31:53,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION (2 of 62 remaining) [2021-11-07 12:31:53,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION (1 of 62 remaining) [2021-11-07 12:31:53,348 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION (0 of 62 remaining) [2021-11-07 12:31:53,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-07 12:31:53,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15