./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ntdrivers/parport.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/ntdrivers/parport.i.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 4ac544dc5b01c2e84192d57540176c08b809d66a678248491533d1421aab9cd9 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 11:44:59,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 11:44:59,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 11:44:59,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 11:44:59,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 11:44:59,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 11:44:59,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 11:44:59,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 11:44:59,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 11:44:59,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 11:44:59,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 11:44:59,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 11:44:59,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 11:44:59,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 11:44:59,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 11:44:59,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 11:44:59,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 11:44:59,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 11:44:59,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 11:44:59,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 11:44:59,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 11:44:59,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 11:44:59,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 11:44:59,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 11:44:59,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 11:44:59,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 11:44:59,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 11:44:59,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 11:44:59,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 11:44:59,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 11:44:59,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 11:44:59,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 11:44:59,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 11:44:59,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 11:44:59,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 11:44:59,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 11:44:59,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 11:44:59,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 11:44:59,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 11:44:59,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 11:44:59,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 11:44:59,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 11:44:59,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 11:44:59,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 11:44:59,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 11:44:59,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 11:44:59,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 11:44:59,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 11:44:59,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 11:44:59,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 11:44:59,368 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 11:44:59,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 11:44:59,369 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 11:44:59,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 11:44:59,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 11:44:59,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 11:44:59,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 11:44:59,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 11:44:59,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 11:44:59,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 11:44:59,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:44:59,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 11:44:59,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 11:44:59,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 11:44:59,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 11:44:59,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 11:44:59,372 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 11:44:59,372 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 11:44:59,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 11:44:59,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 11:44:59,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ac544dc5b01c2e84192d57540176c08b809d66a678248491533d1421aab9cd9 [2021-12-14 11:44:59,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 11:44:59,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 11:44:59,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 11:44:59,583 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 11:44:59,584 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 11:44:59,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers/parport.i.cil-2.c [2021-12-14 11:44:59,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9347b71c5/9434ca06ff72462cad0f061ef2e24903/FLAG2710ce506 [2021-12-14 11:45:00,269 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 11:45:00,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/parport.i.cil-2.c [2021-12-14 11:45:00,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9347b71c5/9434ca06ff72462cad0f061ef2e24903/FLAG2710ce506 [2021-12-14 11:45:00,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9347b71c5/9434ca06ff72462cad0f061ef2e24903 [2021-12-14 11:45:00,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 11:45:00,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 11:45:00,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 11:45:00,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 11:45:00,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 11:45:00,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:45:00" (1/1) ... [2021-12-14 11:45:00,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715d912a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:00, skipping insertion in model container [2021-12-14 11:45:00,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:45:00" (1/1) ... [2021-12-14 11:45:00,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 11:45:00,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 11:45:01,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/parport.i.cil-2.c[86591,86604] [2021-12-14 11:45:01,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:45:01,825 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 11:45:01,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/parport.i.cil-2.c[86591,86604] [2021-12-14 11:45:02,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:45:02,123 INFO L208 MainTranslator]: Completed translation [2021-12-14 11:45:02,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02 WrapperNode [2021-12-14 11:45:02,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 11:45:02,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 11:45:02,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 11:45:02,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 11:45:02,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,297 INFO L137 Inliner]: procedures = 248, calls = 2334, calls flagged for inlining = 84, calls inlined = 64, statements flattened = 4663 [2021-12-14 11:45:02,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 11:45:02,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 11:45:02,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 11:45:02,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 11:45:02,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 11:45:02,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 11:45:02,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 11:45:02,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 11:45:02,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (1/1) ... [2021-12-14 11:45:02,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:45:02,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:45:02,542 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) [2021-12-14 11:45:02,551 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 [2021-12-14 11:45:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure PptDebugDumpResourceRequirementsList [2021-12-14 11:45:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDebugDumpResourceRequirementsList [2021-12-14 11:45:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure PptAcquireRemoveLock [2021-12-14 11:45:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure PptAcquireRemoveLock [2021-12-14 11:45:02,587 INFO L130 BoogieDeclarations]: Found specification of procedure WRITE_PORT_UCHAR [2021-12-14 11:45:02,587 INFO L138 BoogieDeclarations]: Found implementation of procedure WRITE_PORT_UCHAR [2021-12-14 11:45:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure PptLegacyZipClockDiskModeByte [2021-12-14 11:45:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLegacyZipClockDiskModeByte [2021-12-14 11:45:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~PVOID~0~TO~~BOOLEAN~0 [2021-12-14 11:45:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~PVOID~0~TO~~BOOLEAN~0 [2021-12-14 11:45:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 11:45:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 11:45:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure PptClearByteMode [2021-12-14 11:45:02,588 INFO L138 BoogieDeclarations]: Found implementation of procedure PptClearByteMode [2021-12-14 11:45:02,588 INFO L130 BoogieDeclarations]: Found specification of procedure KeStallExecutionProcessor [2021-12-14 11:45:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure KeStallExecutionProcessor [2021-12-14 11:45:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure PptEcrSetMode [2021-12-14 11:45:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure PptEcrSetMode [2021-12-14 11:45:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 11:45:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 11:45:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure PptSynchronizedDecrement [2021-12-14 11:45:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSynchronizedDecrement [2021-12-14 11:45:02,589 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 11:45:02,589 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 11:45:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-14 11:45:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-14 11:45:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpPassThroughPnpIrpAndReleaseRemoveLock [2021-12-14 11:45:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpPassThroughPnpIrpAndReleaseRemoveLock [2021-12-14 11:45:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure PptEcrClearMode [2021-12-14 11:45:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure PptEcrClearMode [2021-12-14 11:45:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 11:45:02,590 INFO L130 BoogieDeclarations]: Found specification of procedure PptDumpRemovalRelationsList [2021-12-14 11:45:02,590 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDumpRemovalRelationsList [2021-12-14 11:45:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure PptLogError [2021-12-14 11:45:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLogError [2021-12-14 11:45:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 11:45:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpUnhandledIrp [2021-12-14 11:45:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpUnhandledIrp [2021-12-14 11:45:02,591 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpFilterExistsNonIrqResourceList [2021-12-14 11:45:02,591 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpFilterExistsNonIrqResourceList [2021-12-14 11:45:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure PptIsNecR98Machine [2021-12-14 11:45:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure PptIsNecR98Machine [2021-12-14 11:45:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure CheckPort [2021-12-14 11:45:02,592 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckPort [2021-12-14 11:45:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 11:45:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 11:45:02,592 INFO L130 BoogieDeclarations]: Found specification of procedure PptLegacyZipSetDiskMode [2021-12-14 11:45:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLegacyZipSetDiskMode [2021-12-14 11:45:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure PptTrySelectLegacyZip [2021-12-14 11:45:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure PptTrySelectLegacyZip [2021-12-14 11:45:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure PptDeselectDevice [2021-12-14 11:45:02,593 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDeselectDevice [2021-12-14 11:45:02,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-14 11:45:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-14 11:45:02,594 INFO L130 BoogieDeclarations]: Found specification of procedure PptDisconnectInterrupt [2021-12-14 11:45:02,594 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDisconnectInterrupt [2021-12-14 11:45:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure RtlQueryRegistryValues [2021-12-14 11:45:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlQueryRegistryValues [2021-12-14 11:45:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpBounceAndCatchPnpIrp [2021-12-14 11:45:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpBounceAndCatchPnpIrp [2021-12-14 11:45:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 11:45:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryTickCount [2021-12-14 11:45:02,595 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryTickCount [2021-12-14 11:45:02,595 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2021-12-14 11:45:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2021-12-14 11:45:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryTimeIncrement [2021-12-14 11:45:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryTimeIncrement [2021-12-14 11:45:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure PptSynchronizedIncrement [2021-12-14 11:45:02,596 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSynchronizedIncrement [2021-12-14 11:45:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 11:45:02,596 INFO L130 BoogieDeclarations]: Found specification of procedure PptSynchCompletionRoutine [2021-12-14 11:45:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSynchCompletionRoutine [2021-12-14 11:45:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 11:45:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure IoReportResourceUsage [2021-12-14 11:45:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure IoReportResourceUsage [2021-12-14 11:45:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure PptInitiate1284_3 [2021-12-14 11:45:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure PptInitiate1284_3 [2021-12-14 11:45:02,597 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpFilterRemoveIrqResourceLists [2021-12-14 11:45:02,597 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpFilterRemoveIrqResourceLists [2021-12-14 11:45:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure PptDispatchCleanup [2021-12-14 11:45:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDispatchCleanup [2021-12-14 11:45:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-14 11:45:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-14 11:45:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 11:45:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 11:45:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCompareUnicodeString [2021-12-14 11:45:02,598 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCompareUnicodeString [2021-12-14 11:45:02,598 INFO L130 BoogieDeclarations]: Found specification of procedure READ_PORT_UCHAR [2021-12-14 11:45:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure READ_PORT_UCHAR [2021-12-14 11:45:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure PptFreePort [2021-12-14 11:45:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure PptFreePort [2021-12-14 11:45:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetectEcpPort [2021-12-14 11:45:02,599 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetectEcpPort [2021-12-14 11:45:02,599 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2021-12-14 11:45:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2021-12-14 11:45:02,600 INFO L130 BoogieDeclarations]: Found specification of procedure IoWMIRegistrationControl [2021-12-14 11:45:02,600 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWMIRegistrationControl [2021-12-14 11:45:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 11:45:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure PptDeselectLegacyZip [2021-12-14 11:45:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDeselectLegacyZip [2021-12-14 11:45:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure PptSetCancelRoutine [2021-12-14 11:45:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSetCancelRoutine [2021-12-14 11:45:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure PptTrySelectDevice [2021-12-14 11:45:02,601 INFO L138 BoogieDeclarations]: Found implementation of procedure PptTrySelectDevice [2021-12-14 11:45:02,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 11:45:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetectBytePort [2021-12-14 11:45:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetectBytePort [2021-12-14 11:45:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure PptReleaseRemoveLock [2021-12-14 11:45:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure PptReleaseRemoveLock [2021-12-14 11:45:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 11:45:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure PptPowerComplete [2021-12-14 11:45:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPowerComplete [2021-12-14 11:45:02,602 INFO L130 BoogieDeclarations]: Found specification of procedure PptFailRequest [2021-12-14 11:45:02,602 INFO L138 BoogieDeclarations]: Found implementation of procedure PptFailRequest [2021-12-14 11:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure IoAcquireRemoveLockEx [2021-12-14 11:45:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAcquireRemoveLockEx [2021-12-14 11:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 11:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-12-14 11:45:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-12-14 11:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure PptSetByteMode [2021-12-14 11:45:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSetByteMode [2021-12-14 11:45:02,603 INFO L130 BoogieDeclarations]: Found specification of procedure PptLegacyZipClockPrtModeByte [2021-12-14 11:45:02,603 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLegacyZipClockPrtModeByte [2021-12-14 11:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetectEppPort [2021-12-14 11:45:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetectEppPort [2021-12-14 11:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetermineFifoWidth [2021-12-14 11:45:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetermineFifoWidth [2021-12-14 11:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure PptSend1284_3Command [2021-12-14 11:45:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSend1284_3Command [2021-12-14 11:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetermineFifoDepth [2021-12-14 11:45:02,604 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetermineFifoDepth [2021-12-14 11:45:02,604 INFO L130 BoogieDeclarations]: Found specification of procedure PptCompleteRequest [2021-12-14 11:45:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure PptCompleteRequest [2021-12-14 11:45:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2021-12-14 11:45:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2021-12-14 11:45:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedIncrement [2021-12-14 11:45:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedIncrement [2021-12-14 11:45:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure PoRequestPowerIrp [2021-12-14 11:45:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure PoRequestPowerIrp [2021-12-14 11:45:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure KeSynchronizeExecution [2021-12-14 11:45:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSynchronizeExecution [2021-12-14 11:45:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure PptAcquireRemoveLockOrFailIrp [2021-12-14 11:45:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure PptAcquireRemoveLockOrFailIrp [2021-12-14 11:45:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~PVOID~0~X~~UCHAR~0~TO~~NTSTATUS~0 [2021-12-14 11:45:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~PVOID~0~X~~UCHAR~0~TO~~NTSTATUS~0 [2021-12-14 11:45:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 11:45:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure PoSetPowerState [2021-12-14 11:45:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure PoSetPowerState [2021-12-14 11:45:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure Ppt1284_3AssignAddress [2021-12-14 11:45:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure Ppt1284_3AssignAddress [2021-12-14 11:45:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2021-12-14 11:45:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2021-12-14 11:45:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2021-12-14 11:45:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2021-12-14 11:45:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 11:45:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 11:45:03,165 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 11:45:03,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 11:45:03,259 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:03,296 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-14 11:45:03,296 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-14 11:45:03,300 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:03,348 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2021-12-14 11:45:03,349 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2021-12-14 11:45:03,593 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:03,642 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-14 11:45:03,643 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-14 11:45:03,918 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:03,922 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-14 11:45:03,922 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-14 11:45:04,010 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,236 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-12-14 11:45:04,236 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-12-14 11:45:04,321 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,325 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-14 11:45:04,325 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-14 11:45:04,327 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,341 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2021-12-14 11:45:04,342 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2021-12-14 11:45:04,342 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,369 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2021-12-14 11:45:04,369 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2021-12-14 11:45:04,636 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,638 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,639 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,639 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,640 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,641 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,647 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,648 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,651 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,652 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,653 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:04,654 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 11:45:10,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-12-14 11:45:10,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-12-14 11:45:10,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##412: assume false; [2021-12-14 11:45:10,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##413: assume !false; [2021-12-14 11:45:10,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##477: assume !false; [2021-12-14 11:45:10,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##476: assume false; [2021-12-14 11:45:10,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##531: assume !false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##530: assume false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##521: assume !false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##520: assume false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume false; [2021-12-14 11:45:10,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume !false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##136: assume false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##576: assume !false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##575: assume false; [2021-12-14 11:45:10,965 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2021-12-14 11:45:11,002 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 11:45:11,030 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 11:45:11,031 INFO L301 CfgBuilder]: Removed 33 assume(true) statements. [2021-12-14 11:45:11,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:11 BoogieIcfgContainer [2021-12-14 11:45:11,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 11:45:11,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 11:45:11,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 11:45:11,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 11:45:11,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:45:00" (1/3) ... [2021-12-14 11:45:11,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c8fb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:45:11, skipping insertion in model container [2021-12-14 11:45:11,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:02" (2/3) ... [2021-12-14 11:45:11,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c8fb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:45:11, skipping insertion in model container [2021-12-14 11:45:11,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:11" (3/3) ... [2021-12-14 11:45:11,042 INFO L111 eAbstractionObserver]: Analyzing ICFG parport.i.cil-2.c [2021-12-14 11:45:11,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 11:45:11,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 11:45:11,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 11:45:11,108 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 [2021-12-14 11:45:11,111 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 11:45:11,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 1728 states, 1203 states have (on average 1.4638403990024937) internal successors, (1761), 1252 states have internal predecessors, (1761), 453 states have call successors, (453), 70 states have call predecessors, (453), 70 states have return successors, (453), 440 states have call predecessors, (453), 453 states have call successors, (453) [2021-12-14 11:45:11,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-14 11:45:11,158 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:11,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:45:11,159 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:11,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:11,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1747724696, now seen corresponding path program 1 times [2021-12-14 11:45:11,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:11,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929579275] [2021-12-14 11:45:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:11,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:11,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:11,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929579275] [2021-12-14 11:45:11,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929579275] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:11,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:11,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 11:45:11,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568997999] [2021-12-14 11:45:11,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 11:45:11,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 11:45:11,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 11:45:11,541 INFO L87 Difference]: Start difference. First operand has 1728 states, 1203 states have (on average 1.4638403990024937) internal successors, (1761), 1252 states have internal predecessors, (1761), 453 states have call successors, (453), 70 states have call predecessors, (453), 70 states have return successors, (453), 440 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:11,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:11,684 INFO L93 Difference]: Finished difference Result 3450 states and 5434 transitions. [2021-12-14 11:45:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 11:45:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-14 11:45:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:11,708 INFO L225 Difference]: With dead ends: 3450 [2021-12-14 11:45:11,708 INFO L226 Difference]: Without dead ends: 1721 [2021-12-14 11:45:11,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 11:45:11,749 INFO L933 BasicCegarLoop]: 2577 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:11,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2577 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:45:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-12-14 11:45:11,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2021-12-14 11:45:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1198 states have (on average 1.3998330550918197) internal successors, (1677), 1245 states have internal predecessors, (1677), 453 states have call successors, (453), 70 states have call predecessors, (453), 69 states have return successors, (434), 426 states have call predecessors, (434), 434 states have call successors, (434) [2021-12-14 11:45:11,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2564 transitions. [2021-12-14 11:45:11,886 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2564 transitions. Word has length 15 [2021-12-14 11:45:11,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:11,887 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 2564 transitions. [2021-12-14 11:45:11,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:11,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2564 transitions. [2021-12-14 11:45:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-14 11:45:11,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:11,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:45:11,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 11:45:11,889 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 12693346, now seen corresponding path program 1 times [2021-12-14 11:45:11,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:11,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116857300] [2021-12-14 11:45:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:11,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:11,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:11,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116857300] [2021-12-14 11:45:11,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116857300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:11,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:11,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:45:11,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747893544] [2021-12-14 11:45:11,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:11,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:45:11,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:11,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:45:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:11,978 INFO L87 Difference]: Start difference. First operand 1721 states and 2564 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:12,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:12,060 INFO L93 Difference]: Finished difference Result 3440 states and 5126 transitions. [2021-12-14 11:45:12,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:45:12,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-14 11:45:12,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:12,070 INFO L225 Difference]: With dead ends: 3440 [2021-12-14 11:45:12,070 INFO L226 Difference]: Without dead ends: 1723 [2021-12-14 11:45:12,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:12,077 INFO L933 BasicCegarLoop]: 2562 mSDtfsCounter, 1 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:12,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 5122 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:45:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2021-12-14 11:45:12,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1722. [2021-12-14 11:45:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1199 states have (on average 1.3994995829858214) internal successors, (1678), 1246 states have internal predecessors, (1678), 453 states have call successors, (453), 70 states have call predecessors, (453), 69 states have return successors, (434), 426 states have call predecessors, (434), 434 states have call successors, (434) [2021-12-14 11:45:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2565 transitions. [2021-12-14 11:45:12,123 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2565 transitions. Word has length 15 [2021-12-14 11:45:12,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:12,123 INFO L470 AbstractCegarLoop]: Abstraction has 1722 states and 2565 transitions. [2021-12-14 11:45:12,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:12,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2565 transitions. [2021-12-14 11:45:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-14 11:45:12,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:12,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:45:12,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 11:45:12,125 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:12,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:12,125 INFO L85 PathProgramCache]: Analyzing trace with hash 25759584, now seen corresponding path program 1 times [2021-12-14 11:45:12,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:12,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836737162] [2021-12-14 11:45:12,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:12,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:12,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:12,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836737162] [2021-12-14 11:45:12,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836737162] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:45:12,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815269312] [2021-12-14 11:45:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:12,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:45:12,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:45:12,206 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) [2021-12-14 11:45:12,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 11:45:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:12,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 11:45:12,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:45:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 11:45:12,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:45:12,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815269312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:12,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 11:45:12,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-14 11:45:12,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009308209] [2021-12-14 11:45:12,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:12,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:45:12,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:12,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:45:12,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:45:12,826 INFO L87 Difference]: Start difference. First operand 1722 states and 2565 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:12,898 INFO L93 Difference]: Finished difference Result 1792 states and 2653 transitions. [2021-12-14 11:45:12,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:45:12,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-14 11:45:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:12,908 INFO L225 Difference]: With dead ends: 1792 [2021-12-14 11:45:12,909 INFO L226 Difference]: Without dead ends: 1773 [2021-12-14 11:45:12,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:45:12,912 INFO L933 BasicCegarLoop]: 2562 mSDtfsCounter, 2542 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2542 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:12,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2542 Valid, 2626 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:45:12,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2021-12-14 11:45:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1764. [2021-12-14 11:45:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1233 states have (on average 1.3965936739659368) internal successors, (1722), 1282 states have internal predecessors, (1722), 457 states have call successors, (457), 74 states have call predecessors, (457), 73 states have return successors, (438), 430 states have call predecessors, (438), 438 states have call successors, (438) [2021-12-14 11:45:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2617 transitions. [2021-12-14 11:45:12,982 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2617 transitions. Word has length 17 [2021-12-14 11:45:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:12,983 INFO L470 AbstractCegarLoop]: Abstraction has 1764 states and 2617 transitions. [2021-12-14 11:45:12,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2617 transitions. [2021-12-14 11:45:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-14 11:45:12,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:12,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:45:13,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 11:45:13,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:45:13,197 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash 11414675, now seen corresponding path program 1 times [2021-12-14 11:45:13,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:13,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540546523] [2021-12-14 11:45:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:13,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:13,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:13,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:13,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540546523] [2021-12-14 11:45:13,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540546523] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:45:13,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501961014] [2021-12-14 11:45:13,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:13,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:45:13,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:45:13,286 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) [2021-12-14 11:45:13,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 11:45:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:13,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:45:13,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:45:13,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 11:45:13,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:45:13,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501961014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:13,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 11:45:13,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-14 11:45:13,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421119456] [2021-12-14 11:45:13,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:13,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:45:13,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:13,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:45:13,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:45:13,808 INFO L87 Difference]: Start difference. First operand 1764 states and 2617 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:13,963 INFO L93 Difference]: Finished difference Result 1780 states and 2636 transitions. [2021-12-14 11:45:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:45:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-14 11:45:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:13,971 INFO L225 Difference]: With dead ends: 1780 [2021-12-14 11:45:13,972 INFO L226 Difference]: Without dead ends: 1764 [2021-12-14 11:45:13,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:45:13,974 INFO L933 BasicCegarLoop]: 2564 mSDtfsCounter, 0 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5071 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:13,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5071 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:45:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2021-12-14 11:45:14,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1764. [2021-12-14 11:45:14,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1233 states have (on average 1.3957826439578265) internal successors, (1721), 1282 states have internal predecessors, (1721), 457 states have call successors, (457), 74 states have call predecessors, (457), 73 states have return successors, (438), 430 states have call predecessors, (438), 438 states have call successors, (438) [2021-12-14 11:45:14,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2616 transitions. [2021-12-14 11:45:14,066 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2616 transitions. Word has length 17 [2021-12-14 11:45:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:14,066 INFO L470 AbstractCegarLoop]: Abstraction has 1764 states and 2616 transitions. [2021-12-14 11:45:14,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:14,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2616 transitions. [2021-12-14 11:45:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-14 11:45:14,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:14,069 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] [2021-12-14 11:45:14,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 11:45:14,287 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,SelfDestructingSolverStorable3 [2021-12-14 11:45:14,288 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:14,288 INFO L85 PathProgramCache]: Analyzing trace with hash -478438479, now seen corresponding path program 1 times [2021-12-14 11:45:14,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:14,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654604027] [2021-12-14 11:45:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:14,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:14,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:14,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654604027] [2021-12-14 11:45:14,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654604027] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:45:14,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122878369] [2021-12-14 11:45:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:14,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:45:14,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:45:14,432 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) [2021-12-14 11:45:14,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 11:45:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:14,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-14 11:45:14,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:45:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:14,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:45:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:45:15,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122878369] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:45:15,018 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 11:45:15,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-12-14 11:45:15,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634693264] [2021-12-14 11:45:15,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 11:45:15,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 11:45:15,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 11:45:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-14 11:45:15,020 INFO L87 Difference]: Start difference. First operand 1764 states and 2616 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:15,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:15,180 INFO L93 Difference]: Finished difference Result 3529 states and 5235 transitions. [2021-12-14 11:45:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 11:45:15,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-14 11:45:15,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:15,189 INFO L225 Difference]: With dead ends: 3529 [2021-12-14 11:45:15,190 INFO L226 Difference]: Without dead ends: 1770 [2021-12-14 11:45:15,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-14 11:45:15,196 INFO L933 BasicCegarLoop]: 2561 mSDtfsCounter, 6 mSDsluCounter, 5118 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:15,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7679 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:45:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2021-12-14 11:45:15,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2021-12-14 11:45:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1239 states have (on average 1.393866020984665) internal successors, (1727), 1288 states have internal predecessors, (1727), 457 states have call successors, (457), 74 states have call predecessors, (457), 73 states have return successors, (438), 430 states have call predecessors, (438), 438 states have call successors, (438) [2021-12-14 11:45:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2622 transitions. [2021-12-14 11:45:15,248 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2622 transitions. Word has length 22 [2021-12-14 11:45:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:15,248 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 2622 transitions. [2021-12-14 11:45:15,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2622 transitions. [2021-12-14 11:45:15,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-14 11:45:15,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:15,249 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:45:15,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 11:45:15,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:45:15,464 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash 307295479, now seen corresponding path program 2 times [2021-12-14 11:45:15,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:15,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368801087] [2021-12-14 11:45:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:15,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:15,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:15,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368801087] [2021-12-14 11:45:15,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368801087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:15,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:15,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:45:15,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106631530] [2021-12-14 11:45:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:15,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:45:15,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:45:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:15,623 INFO L87 Difference]: Start difference. First operand 1770 states and 2622 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:15,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:15,961 INFO L93 Difference]: Finished difference Result 4499 states and 6726 transitions. [2021-12-14 11:45:15,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:45:15,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-14 11:45:15,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:15,977 INFO L225 Difference]: With dead ends: 4499 [2021-12-14 11:45:15,977 INFO L226 Difference]: Without dead ends: 3330 [2021-12-14 11:45:15,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:15,984 INFO L933 BasicCegarLoop]: 4506 mSDtfsCounter, 2447 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:15,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2447 Valid, 6810 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 11:45:15,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2021-12-14 11:45:16,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3299. [2021-12-14 11:45:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2308 states have (on average 1.389948006932409) internal successors, (3208), 2376 states have internal predecessors, (3208), 851 states have call successors, (851), 142 states have call predecessors, (851), 139 states have return successors, (869), 818 states have call predecessors, (869), 835 states have call successors, (869) [2021-12-14 11:45:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4928 transitions. [2021-12-14 11:45:16,105 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4928 transitions. Word has length 28 [2021-12-14 11:45:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:16,106 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4928 transitions. [2021-12-14 11:45:16,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:16,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4928 transitions. [2021-12-14 11:45:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-14 11:45:16,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:16,109 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:16,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 11:45:16,110 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1796297636, now seen corresponding path program 1 times [2021-12-14 11:45:16,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:16,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104447975] [2021-12-14 11:45:16,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:16,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 11:45:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:16,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:16,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104447975] [2021-12-14 11:45:16,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104447975] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:16,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:16,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 11:45:16,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703039236] [2021-12-14 11:45:16,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:16,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 11:45:16,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 11:45:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 11:45:16,270 INFO L87 Difference]: Start difference. First operand 3299 states and 4928 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:19,676 INFO L93 Difference]: Finished difference Result 4067 states and 6046 transitions. [2021-12-14 11:45:19,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 11:45:19,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-12-14 11:45:19,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:19,722 INFO L225 Difference]: With dead ends: 4067 [2021-12-14 11:45:19,722 INFO L226 Difference]: Without dead ends: 4062 [2021-12-14 11:45:19,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:45:19,726 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 2299 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 1466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 3760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1466 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:19,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2623 Valid, 4333 Invalid, 3760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1466 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-14 11:45:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4062 states. [2021-12-14 11:45:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4062 to 4033. [2021-12-14 11:45:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 2759 states have (on average 1.3794853207683944) internal successors, (3806), 2837 states have internal predecessors, (3806), 1088 states have call successors, (1088), 187 states have call predecessors, (1088), 185 states have return successors, (1107), 1051 states have call predecessors, (1107), 1072 states have call successors, (1107) [2021-12-14 11:45:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 6001 transitions. [2021-12-14 11:45:19,898 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 6001 transitions. Word has length 40 [2021-12-14 11:45:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:19,899 INFO L470 AbstractCegarLoop]: Abstraction has 4033 states and 6001 transitions. [2021-12-14 11:45:19,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 6001 transitions. [2021-12-14 11:45:19,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-14 11:45:19,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:19,902 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:19,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 11:45:19,902 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:19,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:19,903 INFO L85 PathProgramCache]: Analyzing trace with hash 601875904, now seen corresponding path program 1 times [2021-12-14 11:45:19,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:19,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557262409] [2021-12-14 11:45:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:19,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 11:45:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:20,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:20,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557262409] [2021-12-14 11:45:20,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557262409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:20,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:20,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 11:45:20,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178247970] [2021-12-14 11:45:20,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:20,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:45:20,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:20,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:45:20,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:45:20,054 INFO L87 Difference]: Start difference. First operand 4033 states and 6001 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:24,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:24,698 INFO L93 Difference]: Finished difference Result 4080 states and 6058 transitions. [2021-12-14 11:45:24,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 11:45:24,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-12-14 11:45:24,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:24,716 INFO L225 Difference]: With dead ends: 4080 [2021-12-14 11:45:24,717 INFO L226 Difference]: Without dead ends: 4071 [2021-12-14 11:45:24,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 11:45:24,720 INFO L933 BasicCegarLoop]: 2364 mSDtfsCounter, 5840 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 4137 mSolverCounterSat, 3677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5972 SdHoareTripleChecker+Valid, 5006 SdHoareTripleChecker+Invalid, 7814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3677 IncrementalHoareTripleChecker+Valid, 4137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:24,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5972 Valid, 5006 Invalid, 7814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3677 Valid, 4137 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-14 11:45:24,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4071 states. [2021-12-14 11:45:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4071 to 4033. [2021-12-14 11:45:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 2759 states have (on average 1.3787604204421893) internal successors, (3804), 2837 states have internal predecessors, (3804), 1088 states have call successors, (1088), 187 states have call predecessors, (1088), 185 states have return successors, (1107), 1051 states have call predecessors, (1107), 1072 states have call successors, (1107) [2021-12-14 11:45:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5999 transitions. [2021-12-14 11:45:24,921 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5999 transitions. Word has length 41 [2021-12-14 11:45:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:24,922 INFO L470 AbstractCegarLoop]: Abstraction has 4033 states and 5999 transitions. [2021-12-14 11:45:24,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5999 transitions. [2021-12-14 11:45:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-14 11:45:24,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:24,923 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:24,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 11:45:24,924 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:24,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash 588958024, now seen corresponding path program 1 times [2021-12-14 11:45:24,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:24,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798087484] [2021-12-14 11:45:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:24,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:25,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 11:45:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:25,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:25,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798087484] [2021-12-14 11:45:25,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798087484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:25,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:25,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 11:45:25,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346547509] [2021-12-14 11:45:25,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:25,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:45:25,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:25,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:45:25,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:45:25,072 INFO L87 Difference]: Start difference. First operand 4033 states and 5999 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:29,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:29,475 INFO L93 Difference]: Finished difference Result 4073 states and 6047 transitions. [2021-12-14 11:45:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 11:45:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-12-14 11:45:29,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:29,492 INFO L225 Difference]: With dead ends: 4073 [2021-12-14 11:45:29,492 INFO L226 Difference]: Without dead ends: 4064 [2021-12-14 11:45:29,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 11:45:29,494 INFO L933 BasicCegarLoop]: 2364 mSDtfsCounter, 5829 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 4132 mSolverCounterSat, 3675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5961 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 7807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3675 IncrementalHoareTripleChecker+Valid, 4132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:29,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5961 Valid, 5001 Invalid, 7807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3675 Valid, 4132 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-14 11:45:29,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4064 states. [2021-12-14 11:45:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4064 to 4033. [2021-12-14 11:45:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 2759 states have (on average 1.378035520115984) internal successors, (3802), 2837 states have internal predecessors, (3802), 1088 states have call successors, (1088), 187 states have call predecessors, (1088), 185 states have return successors, (1107), 1051 states have call predecessors, (1107), 1072 states have call successors, (1107) [2021-12-14 11:45:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5997 transitions. [2021-12-14 11:45:29,671 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5997 transitions. Word has length 42 [2021-12-14 11:45:29,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:29,673 INFO L470 AbstractCegarLoop]: Abstraction has 4033 states and 5997 transitions. [2021-12-14 11:45:29,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:29,673 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5997 transitions. [2021-12-14 11:45:29,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-14 11:45:29,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:29,674 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:29,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 11:45:29,674 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:29,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:29,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1278856833, now seen corresponding path program 1 times [2021-12-14 11:45:29,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:29,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555739245] [2021-12-14 11:45:29,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:29,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:29,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:29,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555739245] [2021-12-14 11:45:29,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555739245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:29,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:29,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:45:29,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144747401] [2021-12-14 11:45:29,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:29,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:45:29,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:29,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:45:29,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:29,812 INFO L87 Difference]: Start difference. First operand 4033 states and 5997 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:29,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:29,945 INFO L93 Difference]: Finished difference Result 6594 states and 9782 transitions. [2021-12-14 11:45:29,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:45:29,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-12-14 11:45:29,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:29,980 INFO L225 Difference]: With dead ends: 6594 [2021-12-14 11:45:29,981 INFO L226 Difference]: Without dead ends: 6291 [2021-12-14 11:45:29,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:29,985 INFO L933 BasicCegarLoop]: 3631 mSDtfsCounter, 2445 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:29,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2445 Valid, 5455 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:45:29,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6291 states. [2021-12-14 11:45:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6291 to 6210. [2021-12-14 11:45:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6210 states, 4199 states have (on average 1.3786615860919267) internal successors, (5789), 4317 states have internal predecessors, (5789), 1726 states have call successors, (1726), 283 states have call predecessors, (1726), 284 states have return successors, (1757), 1678 states have call predecessors, (1757), 1713 states have call successors, (1757) [2021-12-14 11:45:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6210 states to 6210 states and 9272 transitions. [2021-12-14 11:45:30,276 INFO L78 Accepts]: Start accepts. Automaton has 6210 states and 9272 transitions. Word has length 43 [2021-12-14 11:45:30,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:30,276 INFO L470 AbstractCegarLoop]: Abstraction has 6210 states and 9272 transitions. [2021-12-14 11:45:30,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:30,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6210 states and 9272 transitions. [2021-12-14 11:45:30,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-14 11:45:30,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:30,277 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:30,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 11:45:30,280 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:30,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:30,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1132671081, now seen corresponding path program 1 times [2021-12-14 11:45:30,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:30,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946693221] [2021-12-14 11:45:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:30,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-14 11:45:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:30,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:30,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946693221] [2021-12-14 11:45:30,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946693221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:30,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:30,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 11:45:30,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889498655] [2021-12-14 11:45:30,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:30,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 11:45:30,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:30,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 11:45:30,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:45:30,408 INFO L87 Difference]: Start difference. First operand 6210 states and 9272 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:32,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:32,927 INFO L93 Difference]: Finished difference Result 6238 states and 9306 transitions. [2021-12-14 11:45:32,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 11:45:32,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2021-12-14 11:45:32,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:32,950 INFO L225 Difference]: With dead ends: 6238 [2021-12-14 11:45:32,950 INFO L226 Difference]: Without dead ends: 6192 [2021-12-14 11:45:32,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:45:32,956 INFO L933 BasicCegarLoop]: 2262 mSDtfsCounter, 825 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 6222 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:32,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 6222 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 11:45:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6192 states. [2021-12-14 11:45:33,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6192 to 6191. [2021-12-14 11:45:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6191 states, 4186 states have (on average 1.3786430960344003) internal successors, (5771), 4304 states have internal predecessors, (5771), 1720 states have call successors, (1720), 283 states have call predecessors, (1720), 284 states have return successors, (1751), 1672 states have call predecessors, (1751), 1707 states have call successors, (1751) [2021-12-14 11:45:33,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6191 states to 6191 states and 9242 transitions. [2021-12-14 11:45:33,266 INFO L78 Accepts]: Start accepts. Automaton has 6191 states and 9242 transitions. Word has length 43 [2021-12-14 11:45:33,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:33,267 INFO L470 AbstractCegarLoop]: Abstraction has 6191 states and 9242 transitions. [2021-12-14 11:45:33,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 11:45:33,267 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states and 9242 transitions. [2021-12-14 11:45:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-14 11:45:33,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:33,268 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:33,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 11:45:33,269 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash -323587381, now seen corresponding path program 1 times [2021-12-14 11:45:33,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:33,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280287002] [2021-12-14 11:45:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:33,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:33,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:33,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:33,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280287002] [2021-12-14 11:45:33,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280287002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:33,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:33,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:45:33,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570190987] [2021-12-14 11:45:33,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:33,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:45:33,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:33,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:45:33,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:33,377 INFO L87 Difference]: Start difference. First operand 6191 states and 9242 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:33,544 INFO L93 Difference]: Finished difference Result 6194 states and 9244 transitions. [2021-12-14 11:45:33,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:45:33,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-12-14 11:45:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:33,565 INFO L225 Difference]: With dead ends: 6194 [2021-12-14 11:45:33,565 INFO L226 Difference]: Without dead ends: 6191 [2021-12-14 11:45:33,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:45:33,570 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 12 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:33,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 4974 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:45:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2021-12-14 11:45:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 6191. [2021-12-14 11:45:33,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6191 states, 4186 states have (on average 1.378404204491161) internal successors, (5770), 4304 states have internal predecessors, (5770), 1720 states have call successors, (1720), 283 states have call predecessors, (1720), 284 states have return successors, (1751), 1672 states have call predecessors, (1751), 1707 states have call successors, (1751) [2021-12-14 11:45:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6191 states to 6191 states and 9241 transitions. [2021-12-14 11:45:33,843 INFO L78 Accepts]: Start accepts. Automaton has 6191 states and 9241 transitions. Word has length 43 [2021-12-14 11:45:33,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:33,844 INFO L470 AbstractCegarLoop]: Abstraction has 6191 states and 9241 transitions. [2021-12-14 11:45:33,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 11:45:33,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states and 9241 transitions. [2021-12-14 11:45:33,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-14 11:45:33,846 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:33,846 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:33,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 11:45:33,847 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:33,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:33,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2052618280, now seen corresponding path program 1 times [2021-12-14 11:45:33,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:33,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580070685] [2021-12-14 11:45:33,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:33,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 11:45:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 11:45:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:34,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:34,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580070685] [2021-12-14 11:45:34,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580070685] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:34,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:34,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 11:45:34,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915430893] [2021-12-14 11:45:34,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:34,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 11:45:34,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:34,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 11:45:34,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 11:45:34,037 INFO L87 Difference]: Start difference. First operand 6191 states and 9241 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-14 11:45:37,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 11:45:40,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 11:45:44,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:44,541 INFO L93 Difference]: Finished difference Result 12680 states and 19034 transitions. [2021-12-14 11:45:44,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 11:45:44,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-14 11:45:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:44,568 INFO L225 Difference]: With dead ends: 12680 [2021-12-14 11:45:44,568 INFO L226 Difference]: Without dead ends: 7064 [2021-12-14 11:45:44,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-12-14 11:45:44,586 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 625 mSDsluCounter, 11274 mSDsCounter, 0 mSdLazyCounter, 6334 mSolverCounterSat, 499 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 13546 SdHoareTripleChecker+Invalid, 6835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 6334 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:44,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [849 Valid, 13546 Invalid, 6835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 6334 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2021-12-14 11:45:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7064 states. [2021-12-14 11:45:44,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7064 to 6200. [2021-12-14 11:45:44,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6200 states, 4193 states have (on average 1.377772477939423) internal successors, (5777), 4311 states have internal predecessors, (5777), 1720 states have call successors, (1720), 283 states have call predecessors, (1720), 286 states have return successors, (1756), 1674 states have call predecessors, (1756), 1707 states have call successors, (1756) [2021-12-14 11:45:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6200 states to 6200 states and 9253 transitions. [2021-12-14 11:45:44,894 INFO L78 Accepts]: Start accepts. Automaton has 6200 states and 9253 transitions. Word has length 46 [2021-12-14 11:45:44,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:44,894 INFO L470 AbstractCegarLoop]: Abstraction has 6200 states and 9253 transitions. [2021-12-14 11:45:44,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-14 11:45:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6200 states and 9253 transitions. [2021-12-14 11:45:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-14 11:45:44,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:44,896 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:44,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 11:45:44,896 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:44,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:44,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1841267367, now seen corresponding path program 1 times [2021-12-14 11:45:44,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:44,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339754533] [2021-12-14 11:45:44,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:44,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 11:45:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 11:45:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:45,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:45,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339754533] [2021-12-14 11:45:45,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339754533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:45,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:45,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 11:45:45,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465531573] [2021-12-14 11:45:45,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:45,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:45:45,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:45,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:45:45,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:45:45,023 INFO L87 Difference]: Start difference. First operand 6200 states and 9253 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-14 11:45:47,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 11:45:53,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:45:53,065 INFO L93 Difference]: Finished difference Result 12035 states and 18069 transitions. [2021-12-14 11:45:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 11:45:53,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-12-14 11:45:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:45:53,093 INFO L225 Difference]: With dead ends: 12035 [2021-12-14 11:45:53,093 INFO L226 Difference]: Without dead ends: 7026 [2021-12-14 11:45:53,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-14 11:45:53,111 INFO L933 BasicCegarLoop]: 2249 mSDtfsCounter, 588 mSDsluCounter, 5888 mSDsCounter, 0 mSdLazyCounter, 3764 mSolverCounterSat, 495 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 8137 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 3764 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-14 11:45:53,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 8137 Invalid, 4260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 3764 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-14 11:45:53,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7026 states. [2021-12-14 11:45:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7026 to 6194. [2021-12-14 11:45:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4188 states have (on average 1.37774594078319) internal successors, (5770), 4306 states have internal predecessors, (5770), 1720 states have call successors, (1720), 283 states have call predecessors, (1720), 285 states have return successors, (1753), 1673 states have call predecessors, (1753), 1707 states have call successors, (1753) [2021-12-14 11:45:53,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 9243 transitions. [2021-12-14 11:45:53,464 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 9243 transitions. Word has length 46 [2021-12-14 11:45:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:45:53,464 INFO L470 AbstractCegarLoop]: Abstraction has 6194 states and 9243 transitions. [2021-12-14 11:45:53,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-14 11:45:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 9243 transitions. [2021-12-14 11:45:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-14 11:45:53,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:45:53,466 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-14 11:45:53,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 11:45:53,466 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:45:53,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:45:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1771103344, now seen corresponding path program 1 times [2021-12-14 11:45:53,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:45:53,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137488456] [2021-12-14 11:45:53,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:45:53,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:45:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 11:45:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 11:45:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:45:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-14 11:45:53,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:45:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137488456] [2021-12-14 11:45:53,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137488456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:45:53,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:45:53,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 11:45:53,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495947939] [2021-12-14 11:45:53,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:45:53,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 11:45:53,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:45:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 11:45:53,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-14 11:45:53,643 INFO L87 Difference]: Start difference. First operand 6194 states and 9243 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 11:45:55,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 11:45:57,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []