/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 11:58:59,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 11:58:59,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 11:58:59,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 11:58:59,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 11:58:59,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 11:58:59,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 11:58:59,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 11:58:59,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 11:58:59,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 11:58:59,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 11:58:59,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 11:58:59,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 11:58:59,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 11:58:59,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 11:58:59,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 11:58:59,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 11:58:59,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 11:58:59,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 11:58:59,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 11:58:59,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 11:58:59,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 11:58:59,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 11:58:59,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 11:58:59,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 11:58:59,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 11:58:59,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 11:58:59,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 11:58:59,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 11:58:59,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 11:58:59,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 11:58:59,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 11:58:59,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 11:58:59,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 11:58:59,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 11:58:59,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 11:58:59,324 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 [2021-01-20 11:58:59,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 11:58:59,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 11:58:59,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 11:58:59,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 11:58:59,352 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 11:58:59,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 11:58:59,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 11:58:59,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 11:58:59,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 11:58:59,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 11:58:59,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 11:58:59,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 11:58:59,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 11:58:59,355 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 11:58:59,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 11:58:59,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 11:58:59,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 11:58:59,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 11:58:59,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 11:58:59,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 11:58:59,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 11:58:59,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 11:58:59,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 11:58:59,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 11:58:59,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 11:58:59,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 11:58:59,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 11:58:59,359 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 11:58:59,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 11:58:59,359 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 11:58:59,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 11:58:59,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 11:58:59,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 11:58:59,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 11:58:59,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 11:58:59,768 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 11:58:59,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2021-01-20 11:58:59,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3826e92/86d632f8df154ca499cc91160ddce9e2/FLAG355ab25d8 [2021-01-20 11:59:00,538 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 11:59:00,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2021-01-20 11:59:00,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3826e92/86d632f8df154ca499cc91160ddce9e2/FLAG355ab25d8 [2021-01-20 11:59:00,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3826e92/86d632f8df154ca499cc91160ddce9e2 [2021-01-20 11:59:00,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 11:59:00,789 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 11:59:00,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 11:59:00,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 11:59:00,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 11:59:00,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:59:00" (1/1) ... [2021-01-20 11:59:00,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc368e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:00, skipping insertion in model container [2021-01-20 11:59:00,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:59:00" (1/1) ... [2021-01-20 11:59:00,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 11:59:00,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 11:59:01,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 11:59:01,335 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 11:59:01,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 11:59:01,540 INFO L208 MainTranslator]: Completed translation [2021-01-20 11:59:01,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01 WrapperNode [2021-01-20 11:59:01,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 11:59:01,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 11:59:01,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 11:59:01,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 11:59:01,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 11:59:01,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 11:59:01,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 11:59:01,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 11:59:01,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (1/1) ... [2021-01-20 11:59:01,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 11:59:01,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 11:59:01,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 11:59:01,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 11:59:01,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (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 [2021-01-20 11:59:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 11:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-01-20 11:59:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-01-20 11:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-01-20 11:59:01,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-01-20 11:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 11:59:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-20 11:59:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 11:59:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 11:59:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 11:59:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 11:59:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 11:59:01,801 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 11:59:02,221 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 11:59:02,221 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2021-01-20 11:59:02,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:59:02 BoogieIcfgContainer [2021-01-20 11:59:02,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 11:59:02,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 11:59:02,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 11:59:02,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 11:59:02,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:59:00" (1/3) ... [2021-01-20 11:59:02,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eaf953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:59:02, skipping insertion in model container [2021-01-20 11:59:02,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:59:01" (2/3) ... [2021-01-20 11:59:02,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eaf953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:59:02, skipping insertion in model container [2021-01-20 11:59:02,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:59:02" (3/3) ... [2021-01-20 11:59:02,232 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-01-20 11:59:02,246 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 11:59:02,247 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 11:59:02,250 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 11:59:02,251 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 11:59:02,279 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,280 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,280 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,281 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,281 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,281 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,282 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,283 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,284 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,284 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,284 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,285 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,286 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,287 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,288 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,288 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,288 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,289 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,289 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,289 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,290 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,291 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,292 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,293 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,293 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,295 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,296 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,296 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,296 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,296 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,296 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,297 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,305 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,306 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,306 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,306 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,307 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 11:59:02,313 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-20 11:59:02,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 11:59:02,348 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 11:59:02,348 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 11:59:02,348 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 11:59:02,349 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 11:59:02,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 11:59:02,349 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 11:59:02,349 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 11:59:02,349 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 11:59:02,360 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 87 transitions, 196 flow [2021-01-20 11:59:02,431 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 755 states, 753 states have (on average 2.3333333333333335) internal successors, (1757), 754 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 755 states, 753 states have (on average 2.3333333333333335) internal successors, (1757), 754 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-20 11:59:02,464 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 11:59:02,465 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 11:59:02,465 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 11:59:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 11:59:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash -356926593, now seen corresponding path program 1 times [2021-01-20 11:59:02,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 11:59:02,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229263011] [2021-01-20 11:59:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 11:59:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 11:59:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 11:59:02,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229263011] [2021-01-20 11:59:02,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 11:59:02,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 11:59:02,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591685975] [2021-01-20 11:59:02,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 11:59:02,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 11:59:02,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 11:59:02,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 11:59:02,963 INFO L87 Difference]: Start difference. First operand has 755 states, 753 states have (on average 2.3333333333333335) internal successors, (1757), 754 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 11:59:03,142 INFO L93 Difference]: Finished difference Result 753 states and 1752 transitions. [2021-01-20 11:59:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-20 11:59:03,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-01-20 11:59:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 11:59:03,164 INFO L225 Difference]: With dead ends: 753 [2021-01-20 11:59:03,164 INFO L226 Difference]: Without dead ends: 697 [2021-01-20 11:59:03,166 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-20 11:59:03,166 INFO L78 Accepts]: Start accepts. Automaton has 697 states. Word has length 71 [2021-01-20 11:59:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 11:59:03,168 INFO L481 AbstractCegarLoop]: Abstraction has 697 states. [2021-01-20 11:59:03,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,168 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states. [2021-01-20 11:59:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-20 11:59:03,176 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 11:59:03,176 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 11:59:03,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 11:59:03,177 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 11:59:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 11:59:03,178 INFO L82 PathProgramCache]: Analyzing trace with hash -519487877, now seen corresponding path program 1 times [2021-01-20 11:59:03,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 11:59:03,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373747506] [2021-01-20 11:59:03,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 11:59:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 11:59:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 11:59:03,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373747506] [2021-01-20 11:59:03,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 11:59:03,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 11:59:03,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901193001] [2021-01-20 11:59:03,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 11:59:03,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 11:59:03,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 11:59:03,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 11:59:03,454 INFO L87 Difference]: Start difference. First operand 697 states. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 11:59:03,552 INFO L93 Difference]: Finished difference Result 1305 states and 3104 transitions. [2021-01-20 11:59:03,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 11:59:03,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-01-20 11:59:03,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 11:59:03,561 INFO L225 Difference]: With dead ends: 1305 [2021-01-20 11:59:03,561 INFO L226 Difference]: Without dead ends: 838 [2021-01-20 11:59:03,562 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-20 11:59:03,562 INFO L78 Accepts]: Start accepts. Automaton has 838 states. Word has length 71 [2021-01-20 11:59:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 11:59:03,563 INFO L481 AbstractCegarLoop]: Abstraction has 838 states. [2021-01-20 11:59:03,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states. [2021-01-20 11:59:03,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-20 11:59:03,568 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 11:59:03,569 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 11:59:03,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 11:59:03,569 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 11:59:03,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 11:59:03,570 INFO L82 PathProgramCache]: Analyzing trace with hash -485757, now seen corresponding path program 2 times [2021-01-20 11:59:03,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 11:59:03,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102586939] [2021-01-20 11:59:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 11:59:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 11:59:03,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 11:59:03,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102586939] [2021-01-20 11:59:03,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 11:59:03,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-20 11:59:03,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269806764] [2021-01-20 11:59:03,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-20 11:59:03,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 11:59:03,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-20 11:59:03,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 11:59:03,637 INFO L87 Difference]: Start difference. First operand 838 states. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 11:59:03,673 INFO L93 Difference]: Finished difference Result 367 states and 746 transitions. [2021-01-20 11:59:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-20 11:59:03,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-01-20 11:59:03,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 11:59:03,677 INFO L225 Difference]: With dead ends: 367 [2021-01-20 11:59:03,677 INFO L226 Difference]: Without dead ends: 340 [2021-01-20 11:59:03,677 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-20 11:59:03,678 INFO L78 Accepts]: Start accepts. Automaton has 340 states. Word has length 71 [2021-01-20 11:59:03,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 11:59:03,678 INFO L481 AbstractCegarLoop]: Abstraction has 340 states. [2021-01-20 11:59:03,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,679 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2021-01-20 11:59:03,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-01-20 11:59:03,680 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 11:59:03,681 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 11:59:03,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 11:59:03,681 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 11:59:03,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 11:59:03,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1926605477, now seen corresponding path program 3 times [2021-01-20 11:59:03,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 11:59:03,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129364855] [2021-01-20 11:59:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 11:59:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 11:59:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 11:59:03,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129364855] [2021-01-20 11:59:03,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 11:59:03,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 11:59:03,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879284013] [2021-01-20 11:59:03,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 11:59:03,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 11:59:03,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 11:59:03,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 11:59:03,883 INFO L87 Difference]: Start difference. First operand 340 states. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 11:59:03,929 INFO L93 Difference]: Finished difference Result 336 states and 685 transitions. [2021-01-20 11:59:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 11:59:03,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-01-20 11:59:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 11:59:03,930 INFO L225 Difference]: With dead ends: 336 [2021-01-20 11:59:03,931 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 11:59:03,931 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-01-20 11:59:03,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 71 [2021-01-20 11:59:03,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 11:59:03,932 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 11:59:03,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 11:59:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 11:59:03,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 11:59:03,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 11:59:03,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 11:59:03 BasicIcfg [2021-01-20 11:59:03,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 11:59:03,940 INFO L168 Benchmark]: Toolchain (without parser) took 3149.92 ms. Allocated memory is still 302.0 MB. Free memory was 277.0 MB in the beginning and 117.8 MB in the end (delta: 159.2 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.0 GB. [2021-01-20 11:59:03,940 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 11:59:03,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.54 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 247.8 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-20 11:59:03,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.84 ms. Allocated memory is still 302.0 MB. Free memory was 247.6 MB in the beginning and 245.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 11:59:03,943 INFO L168 Benchmark]: Boogie Preprocessor took 70.32 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 284.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2021-01-20 11:59:03,944 INFO L168 Benchmark]: RCFGBuilder took 515.26 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 260.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 11:59:03,945 INFO L168 Benchmark]: TraceAbstraction took 1712.18 ms. Allocated memory is still 302.0 MB. Free memory was 259.4 MB in the beginning and 117.8 MB in the end (delta: 141.6 MB). Peak memory consumption was 142.6 MB. Max. memory is 16.0 GB. [2021-01-20 11:59:03,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 748.54 ms. Allocated memory is still 302.0 MB. Free memory was 276.8 MB in the beginning and 247.8 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.84 ms. Allocated memory is still 302.0 MB. Free memory was 247.6 MB in the beginning and 245.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 70.32 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 284.5 MB in the end (delta: -38.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 515.26 ms. Allocated memory is still 302.0 MB. Free memory was 284.5 MB in the beginning and 260.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1712.18 ms. Allocated memory is still 302.0 MB. Free memory was 259.4 MB in the beginning and 117.8 MB in the end (delta: 141.6 MB). Peak memory consumption was 142.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 397 SDtfs, 200 SDslu, 835 SDs, 0 SdLazy, 97 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=838occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 69300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...