/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 13:57:58,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 13:57:58,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 13:57:58,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 13:57:58,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 13:57:58,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 13:57:58,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 13:57:58,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 13:57:58,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 13:57:58,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 13:57:58,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 13:57:58,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 13:57:58,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 13:57:58,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 13:57:58,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 13:57:58,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 13:57:58,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 13:57:58,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 13:57:58,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 13:57:58,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 13:57:58,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 13:57:58,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 13:57:58,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 13:57:58,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 13:57:58,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 13:57:58,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 13:57:58,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 13:57:58,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 13:57:58,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 13:57:58,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 13:57:58,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 13:57:58,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 13:57:58,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 13:57:58,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 13:57:58,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 13:57:58,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 13:57:58,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 13:57:58,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 13:57:58,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 13:57:58,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 13:57:58,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 13:57:58,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 13:57:58,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 13:57:58,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 13:57:58,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 13:57:58,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 13:57:58,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 13:57:58,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 13:57:58,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 13:57:58,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 13:57:58,349 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 13:57:58,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 13:57:58,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 13:57:58,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 13:57:58,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 13:57:58,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 13:57:58,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 13:57:58,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 13:57:58,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 13:57:58,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:57:58,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 13:57:58,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 13:57:58,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 13:57:58,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 13:57:58,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 13:57:58,354 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 13:57:58,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 13:57:58,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 13:57:58,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 13:57:58,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 13:57:58,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 13:57:58,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 13:57:58,620 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 13:57:58,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-03-15 13:57:58,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0db7d691/936282f1c3ec44ce9376370d075ca25b/FLAGc3f66c3c4 [2022-03-15 13:57:59,096 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 13:57:59,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2022-03-15 13:57:59,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0db7d691/936282f1c3ec44ce9376370d075ca25b/FLAGc3f66c3c4 [2022-03-15 13:57:59,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0db7d691/936282f1c3ec44ce9376370d075ca25b [2022-03-15 13:57:59,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 13:57:59,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 13:57:59,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 13:57:59,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 13:57:59,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 13:57:59,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26fc925d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59, skipping insertion in model container [2022-03-15 13:57:59,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 13:57:59,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 13:57:59,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-03-15 13:57:59,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:57:59,338 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 13:57:59,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2022-03-15 13:57:59,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 13:57:59,368 INFO L208 MainTranslator]: Completed translation [2022-03-15 13:57:59,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59 WrapperNode [2022-03-15 13:57:59,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 13:57:59,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 13:57:59,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 13:57:59,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 13:57:59,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,415 INFO L137 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 119 [2022-03-15 13:57:59,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 13:57:59,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 13:57:59,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 13:57:59,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 13:57:59,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 13:57:59,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 13:57:59,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 13:57:59,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 13:57:59,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (1/1) ... [2022-03-15 13:57:59,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 13:57:59,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 13:57:59,479 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) [2022-03-15 13:57:59,481 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 [2022-03-15 13:57:59,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 13:57:59,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 13:57:59,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 13:57:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 13:57:59,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 13:57:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 13:57:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 13:57:59,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 13:57:59,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 13:57:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 13:57:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 13:57:59,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 13:57:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 13:57:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 13:57:59,518 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 13:57:59,620 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 13:57:59,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 13:57:59,916 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 13:58:00,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 13:58:00,010 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 13:58:00,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:58:00 BoogieIcfgContainer [2022-03-15 13:58:00,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 13:58:00,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 13:58:00,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 13:58:00,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 13:58:00,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 01:57:59" (1/3) ... [2022-03-15 13:58:00,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc4cc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:58:00, skipping insertion in model container [2022-03-15 13:58:00,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 01:57:59" (2/3) ... [2022-03-15 13:58:00,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc4cc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 01:58:00, skipping insertion in model container [2022-03-15 13:58:00,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 01:58:00" (3/3) ... [2022-03-15 13:58:00,025 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2022-03-15 13:58:00,029 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 13:58:00,030 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 13:58:00,030 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 13:58:00,030 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 13:58:00,077 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,078 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,080 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,081 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,081 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,081 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,081 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,082 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,082 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,082 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,083 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,084 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,085 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,086 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,087 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,090 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,091 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,091 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,092 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,093 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 13:58:00,106 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 13:58:00,144 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 13:58:00,149 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 13:58:00,149 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 13:58:00,160 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 137 places, 139 transitions, 294 flow [2022-03-15 13:58:00,248 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 523 states, 522 states have (on average 2.3505747126436782) internal successors, (1227), 522 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 522 states have (on average 2.3505747126436782) internal successors, (1227), 522 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:00,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-15 13:58:00,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:00,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:00,279 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:00,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:00,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1930370989, now seen corresponding path program 1 times [2022-03-15 13:58:00,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:00,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043699657] [2022-03-15 13:58:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:00,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:00,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:00,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043699657] [2022-03-15 13:58:00,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043699657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:00,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:00,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:00,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345842333] [2022-03-15 13:58:00,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:00,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:00,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:00,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:00,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:00,860 INFO L87 Difference]: Start difference. First operand has 523 states, 522 states have (on average 2.3505747126436782) internal successors, (1227), 522 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:01,010 INFO L93 Difference]: Finished difference Result 666 states and 1534 transitions. [2022-03-15 13:58:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:58:01,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-03-15 13:58:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:01,028 INFO L225 Difference]: With dead ends: 666 [2022-03-15 13:58:01,028 INFO L226 Difference]: Without dead ends: 644 [2022-03-15 13:58:01,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 13:58:01,032 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 125 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:01,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 227 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-03-15 13:58:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 629. [2022-03-15 13:58:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 2.3136942675159236) internal successors, (1453), 628 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1453 transitions. [2022-03-15 13:58:01,114 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1453 transitions. Word has length 110 [2022-03-15 13:58:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:01,115 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 1453 transitions. [2022-03-15 13:58:01,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1453 transitions. [2022-03-15 13:58:01,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:01,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:01,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:01,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 13:58:01,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:01,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:01,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1650450993, now seen corresponding path program 1 times [2022-03-15 13:58:01,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:01,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875614858] [2022-03-15 13:58:01,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:01,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:01,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:01,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875614858] [2022-03-15 13:58:01,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875614858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:01,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:01,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-15 13:58:01,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730710189] [2022-03-15 13:58:01,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:01,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 13:58:01,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:01,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 13:58:01,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:58:01,348 INFO L87 Difference]: Start difference. First operand 629 states and 1453 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:01,546 INFO L93 Difference]: Finished difference Result 617 states and 1434 transitions. [2022-03-15 13:58:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:58:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:01,551 INFO L225 Difference]: With dead ends: 617 [2022-03-15 13:58:01,551 INFO L226 Difference]: Without dead ends: 617 [2022-03-15 13:58:01,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:58:01,552 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 165 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:01,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 513 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:01,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-03-15 13:58:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 598. [2022-03-15 13:58:01,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 2.324958123953099) internal successors, (1388), 597 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:01,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1388 transitions. [2022-03-15 13:58:01,569 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1388 transitions. Word has length 111 [2022-03-15 13:58:01,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:01,570 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 1388 transitions. [2022-03-15 13:58:01,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1388 transitions. [2022-03-15 13:58:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:01,572 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:01,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:01,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 13:58:01,573 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:01,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:01,573 INFO L85 PathProgramCache]: Analyzing trace with hash 2011931736, now seen corresponding path program 1 times [2022-03-15 13:58:01,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:01,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13466779] [2022-03-15 13:58:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:01,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:01,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13466779] [2022-03-15 13:58:01,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13466779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:01,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:01,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 13:58:01,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352684814] [2022-03-15 13:58:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:01,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 13:58:01,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:01,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 13:58:01,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-03-15 13:58:01,862 INFO L87 Difference]: Start difference. First operand 598 states and 1388 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 13 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:02,372 INFO L93 Difference]: Finished difference Result 1556 states and 3783 transitions. [2022-03-15 13:58:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-15 13:58:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 13 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:02,380 INFO L225 Difference]: With dead ends: 1556 [2022-03-15 13:58:02,380 INFO L226 Difference]: Without dead ends: 1295 [2022-03-15 13:58:02,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=559, Unknown=0, NotChecked=0, Total=812 [2022-03-15 13:58:02,381 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 461 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:02,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 962 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 13:58:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2022-03-15 13:58:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 639. [2022-03-15 13:58:02,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 638 states have (on average 2.3448275862068964) internal successors, (1496), 638 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:02,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 1496 transitions. [2022-03-15 13:58:02,403 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 1496 transitions. Word has length 111 [2022-03-15 13:58:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:02,403 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 1496 transitions. [2022-03-15 13:58:02,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 13 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 1496 transitions. [2022-03-15 13:58:02,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:02,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:02,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:02,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 13:58:02,406 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:02,406 INFO L85 PathProgramCache]: Analyzing trace with hash 192061591, now seen corresponding path program 2 times [2022-03-15 13:58:02,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:02,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197190673] [2022-03-15 13:58:02,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:02,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:02,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197190673] [2022-03-15 13:58:02,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197190673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:02,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:02,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-15 13:58:02,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555648591] [2022-03-15 13:58:02,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:02,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 13:58:02,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:02,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 13:58:02,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:58:02,648 INFO L87 Difference]: Start difference. First operand 639 states and 1496 transitions. Second operand has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:02,809 INFO L93 Difference]: Finished difference Result 659 states and 1531 transitions. [2022-03-15 13:58:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 13:58:02,810 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:02,813 INFO L225 Difference]: With dead ends: 659 [2022-03-15 13:58:02,813 INFO L226 Difference]: Without dead ends: 629 [2022-03-15 13:58:02,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-03-15 13:58:02,814 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 138 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:02,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 828 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2022-03-15 13:58:02,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 625. [2022-03-15 13:58:02,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 624 states have (on average 2.342948717948718) internal successors, (1462), 624 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1462 transitions. [2022-03-15 13:58:02,829 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1462 transitions. Word has length 111 [2022-03-15 13:58:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:02,830 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 1462 transitions. [2022-03-15 13:58:02,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1462 transitions. [2022-03-15 13:58:02,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:02,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:02,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:02,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 13:58:02,832 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:02,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:02,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1277747753, now seen corresponding path program 3 times [2022-03-15 13:58:02,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:02,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77274039] [2022-03-15 13:58:02,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:02,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:02,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:02,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77274039] [2022-03-15 13:58:02,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77274039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:02,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:02,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:02,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125830331] [2022-03-15 13:58:02,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:02,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:02,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:02,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:02,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:02,935 INFO L87 Difference]: Start difference. First operand 625 states and 1462 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:03,028 INFO L93 Difference]: Finished difference Result 970 states and 2287 transitions. [2022-03-15 13:58:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:58:03,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:03,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:03,033 INFO L225 Difference]: With dead ends: 970 [2022-03-15 13:58:03,033 INFO L226 Difference]: Without dead ends: 962 [2022-03-15 13:58:03,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:58:03,037 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 64 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:03,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 462 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:03,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-15 13:58:03,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 629. [2022-03-15 13:58:03,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 2.339171974522293) internal successors, (1469), 628 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1469 transitions. [2022-03-15 13:58:03,058 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1469 transitions. Word has length 111 [2022-03-15 13:58:03,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:03,058 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 1469 transitions. [2022-03-15 13:58:03,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1469 transitions. [2022-03-15 13:58:03,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:03,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:03,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:03,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 13:58:03,063 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:03,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:03,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1990894989, now seen corresponding path program 4 times [2022-03-15 13:58:03,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:03,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487076481] [2022-03-15 13:58:03,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:03,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:03,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:03,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487076481] [2022-03-15 13:58:03,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487076481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:03,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:03,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:03,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106117290] [2022-03-15 13:58:03,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:03,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:03,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:03,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:03,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:03,193 INFO L87 Difference]: Start difference. First operand 629 states and 1469 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:03,337 INFO L93 Difference]: Finished difference Result 1163 states and 2748 transitions. [2022-03-15 13:58:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:58:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:03,342 INFO L225 Difference]: With dead ends: 1163 [2022-03-15 13:58:03,342 INFO L226 Difference]: Without dead ends: 1159 [2022-03-15 13:58:03,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:58:03,343 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 115 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:03,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 456 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-03-15 13:58:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 637. [2022-03-15 13:58:03,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 636 states have (on average 2.3443396226415096) internal successors, (1491), 636 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1491 transitions. [2022-03-15 13:58:03,361 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1491 transitions. Word has length 111 [2022-03-15 13:58:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:03,361 INFO L470 AbstractCegarLoop]: Abstraction has 637 states and 1491 transitions. [2022-03-15 13:58:03,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1491 transitions. [2022-03-15 13:58:03,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:03,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:03,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:03,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 13:58:03,364 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:03,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:03,364 INFO L85 PathProgramCache]: Analyzing trace with hash 84110905, now seen corresponding path program 5 times [2022-03-15 13:58:03,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:03,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712526335] [2022-03-15 13:58:03,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:03,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:03,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:03,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712526335] [2022-03-15 13:58:03,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712526335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:03,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:03,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:03,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754660058] [2022-03-15 13:58:03,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:03,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:03,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:03,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:03,449 INFO L87 Difference]: Start difference. First operand 637 states and 1491 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:03,554 INFO L93 Difference]: Finished difference Result 1218 states and 2875 transitions. [2022-03-15 13:58:03,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:58:03,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:03,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:03,560 INFO L225 Difference]: With dead ends: 1218 [2022-03-15 13:58:03,560 INFO L226 Difference]: Without dead ends: 1191 [2022-03-15 13:58:03,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:58:03,561 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 126 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:03,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 364 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:03,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2022-03-15 13:58:03,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 633. [2022-03-15 13:58:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 632 states have (on average 2.348101265822785) internal successors, (1484), 632 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1484 transitions. [2022-03-15 13:58:03,580 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1484 transitions. Word has length 111 [2022-03-15 13:58:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:03,580 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 1484 transitions. [2022-03-15 13:58:03,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1484 transitions. [2022-03-15 13:58:03,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:03,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:03,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:03,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 13:58:03,583 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:03,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:03,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1784688165, now seen corresponding path program 6 times [2022-03-15 13:58:03,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:03,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38772399] [2022-03-15 13:58:03,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:03,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:03,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:03,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38772399] [2022-03-15 13:58:03,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38772399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:03,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:03,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:03,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369177914] [2022-03-15 13:58:03,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:03,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:03,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:03,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:03,681 INFO L87 Difference]: Start difference. First operand 633 states and 1484 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:03,816 INFO L93 Difference]: Finished difference Result 1468 states and 3419 transitions. [2022-03-15 13:58:03,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 13:58:03,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:03,823 INFO L225 Difference]: With dead ends: 1468 [2022-03-15 13:58:03,823 INFO L226 Difference]: Without dead ends: 1434 [2022-03-15 13:58:03,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:58:03,823 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 150 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:03,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 522 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-03-15 13:58:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 649. [2022-03-15 13:58:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 2.3518518518518516) internal successors, (1524), 648 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1524 transitions. [2022-03-15 13:58:03,857 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1524 transitions. Word has length 111 [2022-03-15 13:58:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:03,857 INFO L470 AbstractCegarLoop]: Abstraction has 649 states and 1524 transitions. [2022-03-15 13:58:03,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1524 transitions. [2022-03-15 13:58:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:03,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:03,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:03,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 13:58:03,860 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:03,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash 603495047, now seen corresponding path program 7 times [2022-03-15 13:58:03,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:03,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390967800] [2022-03-15 13:58:03,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:03,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:03,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:03,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:03,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390967800] [2022-03-15 13:58:03,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390967800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:03,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:03,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:03,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277839535] [2022-03-15 13:58:03,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:03,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:03,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:03,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:03,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:03,985 INFO L87 Difference]: Start difference. First operand 649 states and 1524 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:04,089 INFO L93 Difference]: Finished difference Result 1214 states and 2846 transitions. [2022-03-15 13:58:04,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 13:58:04,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:04,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:04,094 INFO L225 Difference]: With dead ends: 1214 [2022-03-15 13:58:04,094 INFO L226 Difference]: Without dead ends: 1191 [2022-03-15 13:58:04,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:58:04,095 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 96 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:04,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 465 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:04,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2022-03-15 13:58:04,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 669. [2022-03-15 13:58:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 668 states have (on average 2.3577844311377247) internal successors, (1575), 668 states have internal predecessors, (1575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1575 transitions. [2022-03-15 13:58:04,113 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1575 transitions. Word has length 111 [2022-03-15 13:58:04,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:04,113 INFO L470 AbstractCegarLoop]: Abstraction has 669 states and 1575 transitions. [2022-03-15 13:58:04,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,113 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1575 transitions. [2022-03-15 13:58:04,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:04,115 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:04,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:04,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 13:58:04,116 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:04,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:04,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1418883479, now seen corresponding path program 8 times [2022-03-15 13:58:04,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:04,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587509788] [2022-03-15 13:58:04,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:04,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:04,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:04,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587509788] [2022-03-15 13:58:04,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587509788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:04,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:04,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 13:58:04,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158723182] [2022-03-15 13:58:04,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:04,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 13:58:04,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:04,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 13:58:04,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 13:58:04,180 INFO L87 Difference]: Start difference. First operand 669 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:04,268 INFO L93 Difference]: Finished difference Result 1198 states and 2787 transitions. [2022-03-15 13:58:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 13:58:04,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:04,274 INFO L225 Difference]: With dead ends: 1198 [2022-03-15 13:58:04,274 INFO L226 Difference]: Without dead ends: 1152 [2022-03-15 13:58:04,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 13:58:04,275 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 95 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:04,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 489 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2022-03-15 13:58:04,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 665. [2022-03-15 13:58:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 2.355421686746988) internal successors, (1564), 664 states have internal predecessors, (1564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1564 transitions. [2022-03-15 13:58:04,294 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1564 transitions. Word has length 111 [2022-03-15 13:58:04,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:04,294 INFO L470 AbstractCegarLoop]: Abstraction has 665 states and 1564 transitions. [2022-03-15 13:58:04,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,295 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1564 transitions. [2022-03-15 13:58:04,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:04,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:04,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:04,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 13:58:04,297 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:04,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash 119547115, now seen corresponding path program 9 times [2022-03-15 13:58:04,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:04,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221349078] [2022-03-15 13:58:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:04,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:04,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221349078] [2022-03-15 13:58:04,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221349078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:04,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:04,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:58:04,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922822783] [2022-03-15 13:58:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:04,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:58:04,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:58:04,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:58:04,390 INFO L87 Difference]: Start difference. First operand 665 states and 1564 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:04,511 INFO L93 Difference]: Finished difference Result 764 states and 1788 transitions. [2022-03-15 13:58:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 13:58:04,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:04,513 INFO L225 Difference]: With dead ends: 764 [2022-03-15 13:58:04,513 INFO L226 Difference]: Without dead ends: 226 [2022-03-15 13:58:04,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-03-15 13:58:04,513 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 86 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:04,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 547 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 13:58:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-15 13:58:04,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-03-15 13:58:04,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.7422222222222221) internal successors, (392), 225 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 392 transitions. [2022-03-15 13:58:04,518 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 392 transitions. Word has length 111 [2022-03-15 13:58:04,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:04,518 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 392 transitions. [2022-03-15 13:58:04,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 392 transitions. [2022-03-15 13:58:04,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-15 13:58:04,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 13:58:04,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 13:58:04,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 13:58:04,520 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 13:58:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 13:58:04,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1344923620, now seen corresponding path program 2 times [2022-03-15 13:58:04,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 13:58:04,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890136194] [2022-03-15 13:58:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 13:58:04,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 13:58:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 13:58:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 13:58:04,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 13:58:04,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890136194] [2022-03-15 13:58:04,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890136194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 13:58:04,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 13:58:04,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 13:58:04,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073056411] [2022-03-15 13:58:04,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 13:58:04,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 13:58:04,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 13:58:04,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 13:58:04,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-15 13:58:04,621 INFO L87 Difference]: Start difference. First operand 226 states and 392 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 13:58:04,670 INFO L93 Difference]: Finished difference Result 100 states and 111 transitions. [2022-03-15 13:58:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 13:58:04,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-15 13:58:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 13:58:04,670 INFO L225 Difference]: With dead ends: 100 [2022-03-15 13:58:04,670 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 13:58:04,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 13:58:04,671 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 103 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 13:58:04,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 457 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 13:58:04,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 13:58:04,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 13:58:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 13:58:04,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2022-03-15 13:58:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 13:58:04,672 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 13:58:04,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 13:58:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 13:58:04,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 13:58:04,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-15 13:58:04,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 13:58:04,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 13:58:04,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 13:58:04,678 INFO L732 BasicCegarLoop]: Path program histogram: [9, 2, 1] [2022-03-15 13:58:04,680 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 13:58:04,680 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 13:58:04,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 01:58:04 BasicIcfg [2022-03-15 13:58:04,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 13:58:04,682 INFO L158 Benchmark]: Toolchain (without parser) took 5556.90ms. Allocated memory was 182.5MB in the beginning and 231.7MB in the end (delta: 49.3MB). Free memory was 124.3MB in the beginning and 69.2MB in the end (delta: 55.1MB). Peak memory consumption was 105.2MB. Max. memory is 8.0GB. [2022-03-15 13:58:04,683 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 13:58:04,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.48ms. Allocated memory was 182.5MB in the beginning and 231.7MB in the end (delta: 49.3MB). Free memory was 124.1MB in the beginning and 203.2MB in the end (delta: -79.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. [2022-03-15 13:58:04,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.81ms. Allocated memory is still 231.7MB. Free memory was 203.2MB in the beginning and 201.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 13:58:04,684 INFO L158 Benchmark]: Boogie Preprocessor took 34.37ms. Allocated memory is still 231.7MB. Free memory was 201.1MB in the beginning and 200.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 13:58:04,684 INFO L158 Benchmark]: RCFGBuilder took 561.30ms. Allocated memory is still 231.7MB. Free memory was 200.0MB in the beginning and 182.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-03-15 13:58:04,684 INFO L158 Benchmark]: TraceAbstraction took 4668.21ms. Allocated memory is still 231.7MB. Free memory was 182.2MB in the beginning and 69.2MB in the end (delta: 113.0MB). Peak memory consumption was 114.1MB. Max. memory is 8.0GB. [2022-03-15 13:58:04,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 240.48ms. Allocated memory was 182.5MB in the beginning and 231.7MB in the end (delta: 49.3MB). Free memory was 124.1MB in the beginning and 203.2MB in the end (delta: -79.0MB). Peak memory consumption was 12.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.81ms. Allocated memory is still 231.7MB. Free memory was 203.2MB in the beginning and 201.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.37ms. Allocated memory is still 231.7MB. Free memory was 201.1MB in the beginning and 200.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 561.30ms. Allocated memory is still 231.7MB. Free memory was 200.0MB in the beginning and 182.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4668.21ms. Allocated memory is still 231.7MB. Free memory was 182.2MB in the beginning and 69.2MB in the end (delta: 113.0MB). Peak memory consumption was 114.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 115]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 152 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1724 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1724 mSDsluCounter, 6292 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5101 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1435 IncrementalHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 1514 mSDtfsCounter, 1435 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=669occurred in iteration=9, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 3901 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1331 NumberOfCodeBlocks, 1331 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1319 ConstructedInterpolants, 0 QuantifiedInterpolants, 3650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 13:58:04,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...