/usr/bin/java -Xmx16000000000 -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/pthread-nondet/nondet-array-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 01:14:52,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 01:14:52,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 01:14:52,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 01:14:52,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 01:14:52,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 01:14:52,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 01:14:52,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 01:14:52,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 01:14:52,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 01:14:52,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 01:14:52,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 01:14:52,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 01:14:52,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 01:14:52,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 01:14:52,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 01:14:52,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 01:14:52,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 01:14:52,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 01:14:52,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 01:14:52,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 01:14:52,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 01:14:52,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 01:14:52,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 01:14:52,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 01:14:52,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 01:14:52,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 01:14:52,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 01:14:52,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 01:14:52,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 01:14:52,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 01:14:52,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 01:14:52,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 01:14:52,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 01:14:52,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 01:14:52,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 01:14:52,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 01:14:52,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 01:14:52,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 01:14:52,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 01:14:52,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 01:14:52,545 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 [2021-06-05 01:14:52,581 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 01:14:52,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 01:14:52,582 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 01:14:52,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 01:14:52,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 01:14:52,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 01:14:52,583 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 01:14:52,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 01:14:52,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 01:14:52,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 01:14:52,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 01:14:52,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 01:14:52,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 01:14:52,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 01:14:52,585 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 01:14:52,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 01:14:52,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 01:14:52,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 01:14:52,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 01:14:52,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 01:14:52,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 01:14:52,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 01:14:52,586 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 01:14:52,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 01:14:52,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 01:14:52,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 01:14:52,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 01:14:52,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 01:14:52,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 01:14:52,893 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 01:14:52,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2021-06-05 01:14:52,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21239b123/64d505422f374c4789f0c321502ee384/FLAG6968e4a7c [2021-06-05 01:14:53,717 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 01:14:53,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-2.i [2021-06-05 01:14:53,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21239b123/64d505422f374c4789f0c321502ee384/FLAG6968e4a7c [2021-06-05 01:14:53,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21239b123/64d505422f374c4789f0c321502ee384 [2021-06-05 01:14:53,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 01:14:53,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 01:14:53,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 01:14:53,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 01:14:53,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 01:14:53,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 01:14:53" (1/1) ... [2021-06-05 01:14:53,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429e19d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:53, skipping insertion in model container [2021-06-05 01:14:53,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 01:14:53" (1/1) ... [2021-06-05 01:14:53,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 01:14:54,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 01:14:54,330 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-2.i[30035,30048] [2021-06-05 01:14:54,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 01:14:54,359 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 01:14:54,393 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-2.i[30035,30048] [2021-06-05 01:14:54,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 01:14:54,451 INFO L208 MainTranslator]: Completed translation [2021-06-05 01:14:54,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54 WrapperNode [2021-06-05 01:14:54,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 01:14:54,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 01:14:54,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 01:14:54,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 01:14:54,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 01:14:54,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 01:14:54,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 01:14:54,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 01:14:54,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... [2021-06-05 01:14:54,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 01:14:54,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 01:14:54,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 01:14:54,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 01:14:54,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 01:14:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-06-05 01:14:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 01:14:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 01:14:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2021-06-05 01:14:54,571 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2021-06-05 01:14:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 01:14:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 01:14:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 01:14:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 01:14:54,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 01:14:54,573 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 01:14:54,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 01:14:54,942 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-06-05 01:14:54,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:14:54 BoogieIcfgContainer [2021-06-05 01:14:54,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 01:14:54,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 01:14:54,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 01:14:54,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 01:14:54,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 01:14:53" (1/3) ... [2021-06-05 01:14:54,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332e218d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 01:14:54, skipping insertion in model container [2021-06-05 01:14:54,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 01:14:54" (2/3) ... [2021-06-05 01:14:54,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332e218d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 01:14:54, skipping insertion in model container [2021-06-05 01:14:54,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:14:54" (3/3) ... [2021-06-05 01:14:54,950 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-array-2.i [2021-06-05 01:14:54,958 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 01:14:54,958 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 01:14:54,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 01:14:54,959 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 01:14:54,990 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,990 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,990 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,990 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,990 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,991 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,991 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,991 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,993 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,994 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,994 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,994 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,995 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,995 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,997 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,998 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,998 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,998 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:54,998 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,005 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 01:14:55,024 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 01:14:55,051 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:14:55,051 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:14:55,051 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:14:55,051 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:14:55,051 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:14:55,052 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:14:55,052 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:14:55,052 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:14:55,064 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 79 transitions, 166 flow [2021-06-05 01:14:55,100 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 283 states, 277 states have (on average 1.8014440433212997) internal successors, (499), 282 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 277 states have (on average 1.8014440433212997) internal successors, (499), 282 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:14:55,113 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:55,114 INFO L521 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] [2021-06-05 01:14:55,115 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:55,120 INFO L82 PathProgramCache]: Analyzing trace with hash -837568559, now seen corresponding path program 1 times [2021-06-05 01:14:55,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:55,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952981962] [2021-06-05 01:14:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:55,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:55,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952981962] [2021-06-05 01:14:55,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952981962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:55,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:55,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 01:14:55,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209159786] [2021-06-05 01:14:55,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 01:14:55,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 01:14:55,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:14:55,393 INFO L87 Difference]: Start difference. First operand has 283 states, 277 states have (on average 1.8014440433212997) internal successors, (499), 282 states have internal predecessors, (499), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:55,426 INFO L93 Difference]: Finished difference Result 276 states and 458 transitions. [2021-06-05 01:14:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 01:14:55,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:14:55,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:55,439 INFO L225 Difference]: With dead ends: 276 [2021-06-05 01:14:55,439 INFO L226 Difference]: Without dead ends: 231 [2021-06-05 01:14:55,441 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:14:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-06-05 01:14:55,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-06-05 01:14:55,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.6798245614035088) internal successors, (383), 230 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 383 transitions. [2021-06-05 01:14:55,496 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 383 transitions. Word has length 36 [2021-06-05 01:14:55,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:55,497 INFO L482 AbstractCegarLoop]: Abstraction has 231 states and 383 transitions. [2021-06-05 01:14:55,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 383 transitions. [2021-06-05 01:14:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:14:55,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:55,499 INFO L521 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] [2021-06-05 01:14:55,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 01:14:55,499 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:55,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:55,502 INFO L82 PathProgramCache]: Analyzing trace with hash -118377934, now seen corresponding path program 1 times [2021-06-05 01:14:55,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:55,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723850196] [2021-06-05 01:14:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:55,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:55,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723850196] [2021-06-05 01:14:55,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723850196] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:55,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:55,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:14:55,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95507639] [2021-06-05 01:14:55,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:14:55,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:55,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:14:55,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:55,638 INFO L87 Difference]: Start difference. First operand 231 states and 383 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:55,712 INFO L93 Difference]: Finished difference Result 280 states and 467 transitions. [2021-06-05 01:14:55,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 01:14:55,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:14:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:55,717 INFO L225 Difference]: With dead ends: 280 [2021-06-05 01:14:55,717 INFO L226 Difference]: Without dead ends: 252 [2021-06-05 01:14:55,718 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 01:14:55,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-06-05 01:14:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 238. [2021-06-05 01:14:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 235 states have (on average 1.6808510638297873) internal successors, (395), 237 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 395 transitions. [2021-06-05 01:14:55,727 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 395 transitions. Word has length 36 [2021-06-05 01:14:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:55,728 INFO L482 AbstractCegarLoop]: Abstraction has 238 states and 395 transitions. [2021-06-05 01:14:55,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 395 transitions. [2021-06-05 01:14:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-06-05 01:14:55,729 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:55,729 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:14:55,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 01:14:55,730 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:55,730 INFO L82 PathProgramCache]: Analyzing trace with hash -116446752, now seen corresponding path program 1 times [2021-06-05 01:14:55,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:55,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687951827] [2021-06-05 01:14:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:14:55,762 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:14:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:14:55,808 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:14:55,845 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:14:55,845 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:14:55,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 01:14:55,846 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:14:55,846 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 01:14:55,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,876 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,876 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,876 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,877 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,877 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,877 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,877 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,877 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,878 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,878 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,878 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,878 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,878 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,878 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,879 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,880 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,880 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,880 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,886 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,886 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,886 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,886 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,887 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,902 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,902 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,902 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,902 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,902 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:55,906 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-05 01:14:55,907 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 01:14:55,908 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:14:55,908 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:14:55,908 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:14:55,908 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:14:55,908 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:14:55,908 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:14:55,908 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:14:55,908 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:14:55,910 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 86 transitions, 190 flow [2021-06-05 01:14:56,013 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1807 states, 1797 states have (on average 2.5509181969949917) internal successors, (4584), 1806 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 1807 states, 1797 states have (on average 2.5509181969949917) internal successors, (4584), 1806 states have internal predecessors, (4584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:14:56,022 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:56,022 INFO L521 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] [2021-06-05 01:14:56,023 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:56,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:56,023 INFO L82 PathProgramCache]: Analyzing trace with hash 107759953, now seen corresponding path program 1 times [2021-06-05 01:14:56,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:56,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804437949] [2021-06-05 01:14:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:56,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:56,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804437949] [2021-06-05 01:14:56,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804437949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:56,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:56,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 01:14:56,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092518659] [2021-06-05 01:14:56,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 01:14:56,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:56,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 01:14:56,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:14:56,086 INFO L87 Difference]: Start difference. First operand has 1807 states, 1797 states have (on average 2.5509181969949917) internal successors, (4584), 1806 states have internal predecessors, (4584), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:56,107 INFO L93 Difference]: Finished difference Result 1758 states and 4274 transitions. [2021-06-05 01:14:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 01:14:56,108 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:14:56,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:56,118 INFO L225 Difference]: With dead ends: 1758 [2021-06-05 01:14:56,119 INFO L226 Difference]: Without dead ends: 1461 [2021-06-05 01:14:56,119 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:14:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2021-06-05 01:14:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1461. [2021-06-05 01:14:56,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1456 states have (on average 2.4429945054945055) internal successors, (3557), 1460 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 3557 transitions. [2021-06-05 01:14:56,192 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 3557 transitions. Word has length 36 [2021-06-05 01:14:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:56,192 INFO L482 AbstractCegarLoop]: Abstraction has 1461 states and 3557 transitions. [2021-06-05 01:14:56,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 3557 transitions. [2021-06-05 01:14:56,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:14:56,200 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:56,200 INFO L521 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] [2021-06-05 01:14:56,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 01:14:56,200 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:56,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:56,201 INFO L82 PathProgramCache]: Analyzing trace with hash 826950578, now seen corresponding path program 1 times [2021-06-05 01:14:56,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:56,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794911379] [2021-06-05 01:14:56,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:56,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:56,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794911379] [2021-06-05 01:14:56,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794911379] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:56,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:56,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:14:56,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614515573] [2021-06-05 01:14:56,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:14:56,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:56,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:14:56,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:56,258 INFO L87 Difference]: Start difference. First operand 1461 states and 3557 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:56,297 INFO L93 Difference]: Finished difference Result 1804 states and 4390 transitions. [2021-06-05 01:14:56,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 01:14:56,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:14:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:56,305 INFO L225 Difference]: With dead ends: 1804 [2021-06-05 01:14:56,305 INFO L226 Difference]: Without dead ends: 1608 [2021-06-05 01:14:56,306 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 01:14:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2021-06-05 01:14:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1510. [2021-06-05 01:14:56,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1505 states have (on average 2.4425249169435217) internal successors, (3676), 1509 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 3676 transitions. [2021-06-05 01:14:56,372 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 3676 transitions. Word has length 36 [2021-06-05 01:14:56,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:56,372 INFO L482 AbstractCegarLoop]: Abstraction has 1510 states and 3676 transitions. [2021-06-05 01:14:56,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 3676 transitions. [2021-06-05 01:14:56,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 01:14:56,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:56,374 INFO L521 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] [2021-06-05 01:14:56,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 01:14:56,374 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:56,378 INFO L82 PathProgramCache]: Analyzing trace with hash 226916308, now seen corresponding path program 1 times [2021-06-05 01:14:56,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:56,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590357861] [2021-06-05 01:14:56,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:56,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:56,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590357861] [2021-06-05 01:14:56,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590357861] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:56,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:56,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:14:56,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708723245] [2021-06-05 01:14:56,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:14:56,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:56,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:14:56,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:56,499 INFO L87 Difference]: Start difference. First operand 1510 states and 3676 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:56,591 INFO L93 Difference]: Finished difference Result 1150 states and 2574 transitions. [2021-06-05 01:14:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 01:14:56,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-06-05 01:14:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:56,596 INFO L225 Difference]: With dead ends: 1150 [2021-06-05 01:14:56,597 INFO L226 Difference]: Without dead ends: 1019 [2021-06-05 01:14:56,597 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:56,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2021-06-05 01:14:56,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 939. [2021-06-05 01:14:56,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 935 states have (on average 2.259893048128342) internal successors, (2113), 938 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 2113 transitions. [2021-06-05 01:14:56,642 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 2113 transitions. Word has length 43 [2021-06-05 01:14:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:56,642 INFO L482 AbstractCegarLoop]: Abstraction has 939 states and 2113 transitions. [2021-06-05 01:14:56,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 2113 transitions. [2021-06-05 01:14:56,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-06-05 01:14:56,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:56,644 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:14:56,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 01:14:56,645 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:56,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:56,647 INFO L82 PathProgramCache]: Analyzing trace with hash -519909148, now seen corresponding path program 1 times [2021-06-05 01:14:56,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:56,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357685209] [2021-06-05 01:14:56,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:14:56,687 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:14:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:14:56,720 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:14:56,733 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:14:56,733 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:14:56,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 01:14:56,733 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:14:56,734 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 01:14:56,743 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,743 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,743 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,743 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,743 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,744 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,744 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,744 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,744 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,744 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,744 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,745 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,745 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,746 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,747 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,748 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,749 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,749 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,751 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,751 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,751 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,751 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,755 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,756 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,756 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,756 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,756 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,759 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,759 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,759 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,759 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,759 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,761 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,761 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,761 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,761 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,761 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:56,769 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-05 01:14:56,769 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 01:14:56,770 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:14:56,770 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:14:56,770 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:14:56,770 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:14:56,770 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:14:56,770 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:14:56,771 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:14:56,771 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:14:56,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 93 transitions, 216 flow [2021-06-05 01:14:57,440 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12169 states, 12151 states have (on average 3.291745535346885) internal successors, (39998), 12168 states have internal predecessors, (39998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 12169 states, 12151 states have (on average 3.291745535346885) internal successors, (39998), 12168 states have internal predecessors, (39998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:14:57,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:57,473 INFO L521 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] [2021-06-05 01:14:57,474 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:57,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:57,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1470062994, now seen corresponding path program 1 times [2021-06-05 01:14:57,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:57,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101037473] [2021-06-05 01:14:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:57,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:57,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101037473] [2021-06-05 01:14:57,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101037473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:57,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:57,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 01:14:57,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378645340] [2021-06-05 01:14:57,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 01:14:57,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:57,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 01:14:57,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:14:57,546 INFO L87 Difference]: Start difference. First operand has 12169 states, 12151 states have (on average 3.291745535346885) internal successors, (39998), 12168 states have internal predecessors, (39998), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:57,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:57,706 INFO L93 Difference]: Finished difference Result 11826 states and 37631 transitions. [2021-06-05 01:14:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 01:14:57,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:14:57,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:57,770 INFO L225 Difference]: With dead ends: 11826 [2021-06-05 01:14:57,771 INFO L226 Difference]: Without dead ends: 9765 [2021-06-05 01:14:57,771 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:14:57,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2021-06-05 01:14:58,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 9765. [2021-06-05 01:14:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9765 states, 9756 states have (on average 3.193931939319393) internal successors, (31160), 9764 states have internal predecessors, (31160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9765 states to 9765 states and 31160 transitions. [2021-06-05 01:14:58,244 INFO L78 Accepts]: Start accepts. Automaton has 9765 states and 31160 transitions. Word has length 36 [2021-06-05 01:14:58,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:58,244 INFO L482 AbstractCegarLoop]: Abstraction has 9765 states and 31160 transitions. [2021-06-05 01:14:58,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:58,244 INFO L276 IsEmpty]: Start isEmpty. Operand 9765 states and 31160 transitions. [2021-06-05 01:14:58,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:14:58,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:58,245 INFO L521 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] [2021-06-05 01:14:58,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 01:14:58,245 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:58,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:58,246 INFO L82 PathProgramCache]: Analyzing trace with hash -298259214, now seen corresponding path program 1 times [2021-06-05 01:14:58,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:58,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047769388] [2021-06-05 01:14:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:58,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:58,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047769388] [2021-06-05 01:14:58,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047769388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:58,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:58,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:14:58,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245096657] [2021-06-05 01:14:58,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:14:58,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:58,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:14:58,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:58,316 INFO L87 Difference]: Start difference. First operand 9765 states and 31160 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:58,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:58,433 INFO L93 Difference]: Finished difference Result 12166 states and 38706 transitions. [2021-06-05 01:14:58,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 01:14:58,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:14:58,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:58,530 INFO L225 Difference]: With dead ends: 12166 [2021-06-05 01:14:58,530 INFO L226 Difference]: Without dead ends: 10794 [2021-06-05 01:14:58,531 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 01:14:58,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2021-06-05 01:14:58,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 10108. [2021-06-05 01:14:58,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10108 states, 10099 states have (on average 3.1921972472522033) internal successors, (32238), 10107 states have internal predecessors, (32238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 32238 transitions. [2021-06-05 01:14:58,881 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 32238 transitions. Word has length 36 [2021-06-05 01:14:58,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:58,882 INFO L482 AbstractCegarLoop]: Abstraction has 10108 states and 32238 transitions. [2021-06-05 01:14:58,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 32238 transitions. [2021-06-05 01:14:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 01:14:58,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:58,883 INFO L521 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] [2021-06-05 01:14:58,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 01:14:58,883 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:58,884 INFO L82 PathProgramCache]: Analyzing trace with hash 56842257, now seen corresponding path program 1 times [2021-06-05 01:14:58,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:58,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486950802] [2021-06-05 01:14:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:14:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:14:58,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:14:58,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486950802] [2021-06-05 01:14:58,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486950802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:14:58,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:14:58,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:14:58,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326969848] [2021-06-05 01:14:58,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:14:58,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:14:58,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:14:58,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:58,923 INFO L87 Difference]: Start difference. First operand 10108 states and 32238 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:14:59,079 INFO L93 Difference]: Finished difference Result 8230 states and 24489 transitions. [2021-06-05 01:14:59,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 01:14:59,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-06-05 01:14:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:14:59,102 INFO L225 Difference]: With dead ends: 8230 [2021-06-05 01:14:59,102 INFO L226 Difference]: Without dead ends: 7451 [2021-06-05 01:14:59,103 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:14:59,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2021-06-05 01:14:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 6693. [2021-06-05 01:14:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 6685 states have (on average 2.9964098728496635) internal successors, (20031), 6692 states have internal predecessors, (20031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 20031 transitions. [2021-06-05 01:14:59,314 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 20031 transitions. Word has length 43 [2021-06-05 01:14:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:14:59,315 INFO L482 AbstractCegarLoop]: Abstraction has 6693 states and 20031 transitions. [2021-06-05 01:14:59,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:14:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 20031 transitions. [2021-06-05 01:14:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 01:14:59,320 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:14:59,320 INFO L521 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:14:59,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 01:14:59,320 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:14:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:14:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash -788640589, now seen corresponding path program 1 times [2021-06-05 01:14:59,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:14:59,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295226132] [2021-06-05 01:14:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:14:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:14:59,337 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:14:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:14:59,349 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:14:59,357 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:14:59,358 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:14:59,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 01:14:59,358 WARN L242 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:14:59,358 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-06-05 01:14:59,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,367 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,369 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,370 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,373 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,373 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,373 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,373 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,373 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,374 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,375 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,375 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,375 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,375 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,376 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,376 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,376 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,376 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,376 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,377 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,378 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,378 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,378 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,378 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:14:59,382 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 01:14:59,383 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 01:14:59,384 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:14:59,384 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:14:59,384 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:14:59,384 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:14:59,384 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:14:59,384 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:14:59,384 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:14:59,384 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:14:59,386 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 100 transitions, 244 flow [2021-06-05 01:15:10,496 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82867 states, 82833 states have (on average 4.02511076503326) internal successors, (333412), 82866 states have internal predecessors, (333412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:10,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 82867 states, 82833 states have (on average 4.02511076503326) internal successors, (333412), 82866 states have internal predecessors, (333412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:15:10,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:15:10,590 INFO L521 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] [2021-06-05 01:15:10,590 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:15:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:15:10,590 INFO L82 PathProgramCache]: Analyzing trace with hash 81769361, now seen corresponding path program 1 times [2021-06-05 01:15:10,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:15:10,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663331478] [2021-06-05 01:15:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:15:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:15:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:15:10,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:15:10,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663331478] [2021-06-05 01:15:10,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663331478] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:15:10,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:15:10,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 01:15:10,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285630657] [2021-06-05 01:15:10,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 01:15:10,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:15:10,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 01:15:10,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:15:10,711 INFO L87 Difference]: Start difference. First operand has 82867 states, 82833 states have (on average 4.02511076503326) internal successors, (333412), 82866 states have internal predecessors, (333412), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:11,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:15:11,666 INFO L93 Difference]: Finished difference Result 80466 states and 315392 transitions. [2021-06-05 01:15:11,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 01:15:11,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:15:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:15:12,294 INFO L225 Difference]: With dead ends: 80466 [2021-06-05 01:15:12,294 INFO L226 Difference]: Without dead ends: 66057 [2021-06-05 01:15:12,295 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:15:13,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66057 states. [2021-06-05 01:15:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66057 to 66057. [2021-06-05 01:15:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66057 states, 66040 states have (on average 3.934327680193822) internal successors, (259823), 66056 states have internal predecessors, (259823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:14,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66057 states to 66057 states and 259823 transitions. [2021-06-05 01:15:14,944 INFO L78 Accepts]: Start accepts. Automaton has 66057 states and 259823 transitions. Word has length 36 [2021-06-05 01:15:14,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:15:14,945 INFO L482 AbstractCegarLoop]: Abstraction has 66057 states and 259823 transitions. [2021-06-05 01:15:14,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 66057 states and 259823 transitions. [2021-06-05 01:15:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:15:14,945 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:15:14,945 INFO L521 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] [2021-06-05 01:15:14,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 01:15:14,946 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:15:14,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:15:14,946 INFO L82 PathProgramCache]: Analyzing trace with hash 800959986, now seen corresponding path program 1 times [2021-06-05 01:15:14,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:15:14,947 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463398408] [2021-06-05 01:15:14,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:15:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:15:14,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:15:14,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:15:14,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463398408] [2021-06-05 01:15:14,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463398408] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:15:14,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:15:14,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:15:14,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441418664] [2021-06-05 01:15:14,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:15:14,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:15:14,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:15:14,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:15:14,993 INFO L87 Difference]: Start difference. First operand 66057 states and 259823 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:15,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:15:15,956 INFO L93 Difference]: Finished difference Result 82864 states and 324650 transitions. [2021-06-05 01:15:15,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 01:15:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:15:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:15:16,272 INFO L225 Difference]: With dead ends: 82864 [2021-06-05 01:15:16,272 INFO L226 Difference]: Without dead ends: 73260 [2021-06-05 01:15:16,272 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 01:15:17,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73260 states. [2021-06-05 01:15:18,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73260 to 68458. [2021-06-05 01:15:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68458 states, 68441 states have (on average 3.9316199354188277) internal successors, (269084), 68457 states have internal predecessors, (269084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68458 states to 68458 states and 269084 transitions. [2021-06-05 01:15:18,956 INFO L78 Accepts]: Start accepts. Automaton has 68458 states and 269084 transitions. Word has length 36 [2021-06-05 01:15:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:15:18,956 INFO L482 AbstractCegarLoop]: Abstraction has 68458 states and 269084 transitions. [2021-06-05 01:15:18,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 68458 states and 269084 transitions. [2021-06-05 01:15:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 01:15:18,957 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:15:18,957 INFO L521 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] [2021-06-05 01:15:18,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 01:15:18,957 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:15:18,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:15:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash -495492619, now seen corresponding path program 1 times [2021-06-05 01:15:18,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:15:18,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150124883] [2021-06-05 01:15:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:15:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:15:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:15:19,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:15:19,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150124883] [2021-06-05 01:15:19,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150124883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:15:19,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:15:19,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:15:19,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673357766] [2021-06-05 01:15:19,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:15:19,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:15:19,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:15:19,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:15:19,005 INFO L87 Difference]: Start difference. First operand 68458 states and 269084 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:19,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:15:19,778 INFO L93 Difference]: Finished difference Result 59050 states and 218982 transitions. [2021-06-05 01:15:19,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 01:15:19,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-06-05 01:15:19,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:15:19,944 INFO L225 Difference]: With dead ends: 59050 [2021-06-05 01:15:19,944 INFO L226 Difference]: Without dead ends: 54383 [2021-06-05 01:15:19,944 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:15:20,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54383 states. [2021-06-05 01:15:21,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54383 to 47979. [2021-06-05 01:15:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47979 states, 47963 states have (on average 3.7277276233763526) internal successors, (178793), 47978 states have internal predecessors, (178793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:21,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47979 states to 47979 states and 178793 transitions. [2021-06-05 01:15:21,551 INFO L78 Accepts]: Start accepts. Automaton has 47979 states and 178793 transitions. Word has length 43 [2021-06-05 01:15:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:15:21,551 INFO L482 AbstractCegarLoop]: Abstraction has 47979 states and 178793 transitions. [2021-06-05 01:15:21,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:21,551 INFO L276 IsEmpty]: Start isEmpty. Operand 47979 states and 178793 transitions. [2021-06-05 01:15:21,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 01:15:21,560 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:15:21,560 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:15:21,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 01:15:21,560 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:15:21,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:15:21,561 INFO L82 PathProgramCache]: Analyzing trace with hash -812869803, now seen corresponding path program 1 times [2021-06-05 01:15:21,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:15:21,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963660758] [2021-06-05 01:15:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:15:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:15:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 01:15:21,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:15:21,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963660758] [2021-06-05 01:15:21,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963660758] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:15:21,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067072035] [2021-06-05 01:15:21,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 01:15:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:15:21,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-05 01:15:21,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 01:15:22,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-05 01:15:22,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067072035] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 01:15:22,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 01:15:22,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 19 [2021-06-05 01:15:22,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214271061] [2021-06-05 01:15:22,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 01:15:22,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:15:22,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 01:15:22,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-06-05 01:15:22,290 INFO L87 Difference]: Start difference. First operand 47979 states and 178793 transitions. Second operand has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:15:25,519 INFO L93 Difference]: Finished difference Result 127423 states and 449295 transitions. [2021-06-05 01:15:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-05 01:15:25,520 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 01:15:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:15:26,342 INFO L225 Difference]: With dead ends: 127423 [2021-06-05 01:15:26,343 INFO L226 Difference]: Without dead ends: 124527 [2021-06-05 01:15:26,344 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 2213.4ms TimeCoverageRelationStatistics Valid=693, Invalid=2613, Unknown=0, NotChecked=0, Total=3306 [2021-06-05 01:15:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124527 states. [2021-06-05 01:15:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124527 to 70046. [2021-06-05 01:15:28,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70046 states, 70030 states have (on average 3.6935456233042983) internal successors, (258659), 70045 states have internal predecessors, (258659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70046 states to 70046 states and 258659 transitions. [2021-06-05 01:15:29,046 INFO L78 Accepts]: Start accepts. Automaton has 70046 states and 258659 transitions. Word has length 65 [2021-06-05 01:15:29,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:15:29,046 INFO L482 AbstractCegarLoop]: Abstraction has 70046 states and 258659 transitions. [2021-06-05 01:15:29,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:15:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 70046 states and 258659 transitions. [2021-06-05 01:15:29,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 01:15:29,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:15:29,088 INFO L521 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 01:15:29,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-05 01:15:29,301 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:15:29,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:15:29,301 INFO L82 PathProgramCache]: Analyzing trace with hash -556403091, now seen corresponding path program 1 times [2021-06-05 01:15:29,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:15:29,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346587165] [2021-06-05 01:15:29,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:15:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:15:29,329 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:15:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 01:15:29,344 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 01:15:29,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 01:15:29,364 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 01:15:29,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 01:15:29,364 WARN L242 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 01:15:29,364 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-06-05 01:15:29,380 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,380 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,380 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,380 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,380 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,381 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,382 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,383 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,384 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,385 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,386 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,388 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,388 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,388 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,388 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,388 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,389 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,390 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,390 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,390 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,390 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,391 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,391 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,391 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,391 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,391 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,392 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,392 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,392 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,393 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,393 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,394 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,394 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,394 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,394 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,394 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 01:15:29,400 INFO L149 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-06-05 01:15:29,401 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 01:15:29,404 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 01:15:29,404 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 01:15:29,404 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 01:15:29,404 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 01:15:29,404 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 01:15:29,404 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 01:15:29,404 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 01:15:29,404 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 01:15:29,407 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 107 places, 107 transitions, 274 flow [2021-06-05 01:24:01,392 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 566737 states, 566671 states have (on average 4.754345996177676) internal successors, (2694150), 566736 states have internal predecessors, (2694150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 566737 states, 566671 states have (on average 4.754345996177676) internal successors, (2694150), 566736 states have internal predecessors, (2694150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:24:02,015 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:24:02,015 INFO L521 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] [2021-06-05 01:24:02,015 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:24:02,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:24:02,016 INFO L82 PathProgramCache]: Analyzing trace with hash -889549743, now seen corresponding path program 1 times [2021-06-05 01:24:02,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:24:02,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130743312] [2021-06-05 01:24:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:24:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:24:02,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:24:02,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:24:02,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130743312] [2021-06-05 01:24:02,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130743312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:24:02,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:24:02,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 01:24:02,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332655673] [2021-06-05 01:24:02,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 01:24:02,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:24:02,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 01:24:02,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:24:02,681 INFO L87 Difference]: Start difference. First operand has 566737 states, 566671 states have (on average 4.754345996177676) internal successors, (2694150), 566736 states have internal predecessors, (2694150), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:09,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:24:09,266 INFO L93 Difference]: Finished difference Result 549930 states and 2557565 transitions. [2021-06-05 01:24:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 01:24:09,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:24:09,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:24:13,378 INFO L225 Difference]: With dead ends: 549930 [2021-06-05 01:24:13,378 INFO L226 Difference]: Without dead ends: 449085 [2021-06-05 01:24:13,379 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 01:24:24,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449085 states. [2021-06-05 01:24:35,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449085 to 449085. [2021-06-05 01:24:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449085 states, 449052 states have (on average 4.66888021877199) internal successors, (2096570), 449084 states have internal predecessors, (2096570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:40,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449085 states to 449085 states and 2096570 transitions. [2021-06-05 01:24:40,788 INFO L78 Accepts]: Start accepts. Automaton has 449085 states and 2096570 transitions. Word has length 36 [2021-06-05 01:24:40,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:24:40,789 INFO L482 AbstractCegarLoop]: Abstraction has 449085 states and 2096570 transitions. [2021-06-05 01:24:40,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:40,789 INFO L276 IsEmpty]: Start isEmpty. Operand 449085 states and 2096570 transitions. [2021-06-05 01:24:40,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 01:24:40,789 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:24:40,789 INFO L521 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] [2021-06-05 01:24:40,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 01:24:40,790 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:24:40,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:24:40,790 INFO L82 PathProgramCache]: Analyzing trace with hash -170359118, now seen corresponding path program 1 times [2021-06-05 01:24:40,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:24:40,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330663524] [2021-06-05 01:24:40,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:24:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:24:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:24:40,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:24:40,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330663524] [2021-06-05 01:24:40,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330663524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:24:40,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:24:40,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:24:40,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127462865] [2021-06-05 01:24:40,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:24:40,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:24:40,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:24:40,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:24:40,872 INFO L87 Difference]: Start difference. First operand 449085 states and 2096570 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:24:48,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 01:24:48,676 INFO L93 Difference]: Finished difference Result 566734 states and 2634394 transitions. [2021-06-05 01:24:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 01:24:48,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-06-05 01:24:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 01:24:55,048 INFO L225 Difference]: With dead ends: 566734 [2021-06-05 01:24:55,049 INFO L226 Difference]: Without dead ends: 499506 [2021-06-05 01:24:55,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-05 01:25:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499506 states. [2021-06-05 01:25:20,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499506 to 465892. [2021-06-05 01:25:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465892 states, 465859 states have (on average 4.665364412837361) internal successors, (2173402), 465891 states have internal predecessors, (2173402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465892 states to 465892 states and 2173402 transitions. [2021-06-05 01:25:27,165 INFO L78 Accepts]: Start accepts. Automaton has 465892 states and 2173402 transitions. Word has length 36 [2021-06-05 01:25:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 01:25:27,166 INFO L482 AbstractCegarLoop]: Abstraction has 465892 states and 2173402 transitions. [2021-06-05 01:25:27,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 01:25:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 465892 states and 2173402 transitions. [2021-06-05 01:25:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 01:25:27,167 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 01:25:27,167 INFO L521 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] [2021-06-05 01:25:27,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 01:25:27,167 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 01:25:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 01:25:27,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1430088320, now seen corresponding path program 1 times [2021-06-05 01:25:27,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 01:25:27,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391016189] [2021-06-05 01:25:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 01:25:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 01:25:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 01:25:27,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 01:25:27,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391016189] [2021-06-05 01:25:27,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391016189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 01:25:27,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 01:25:27,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 01:25:27,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848253511] [2021-06-05 01:25:27,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 01:25:27,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 01:25:27,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 01:25:27,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 01:25:27,248 INFO L87 Difference]: Start difference. First operand 465892 states and 2173402 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)