/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-Delay.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 03:26:07,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 03:26:07,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 03:26:07,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 03:26:07,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 03:26:07,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 03:26:07,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 03:26:07,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 03:26:07,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 03:26:07,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 03:26:07,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 03:26:07,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 03:26:07,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 03:26:07,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 03:26:07,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 03:26:07,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 03:26:07,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 03:26:07,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 03:26:07,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 03:26:07,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 03:26:07,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 03:26:07,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 03:26:07,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 03:26:07,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 03:26:07,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 03:26:07,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 03:26:07,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 03:26:07,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 03:26:07,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 03:26:07,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 03:26:07,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 03:26:07,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 03:26:07,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 03:26:07,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 03:26:07,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 03:26:07,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 03:26:07,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 03:26:07,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 03:26:07,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 03:26:07,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 03:26:07,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 03:26:07,437 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-Delay.epf [2020-11-12 03:26:07,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 03:26:07,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 03:26:07,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 03:26:07,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 03:26:07,500 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 03:26:07,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 03:26:07,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 03:26:07,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 03:26:07,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 03:26:07,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 03:26:07,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 03:26:07,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 03:26:07,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 03:26:07,503 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 03:26:07,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 03:26:07,504 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 03:26:07,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 03:26:07,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 03:26:07,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 03:26:07,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 03:26:07,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 03:26:07,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 03:26:07,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 03:26:07,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 03:26:07,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 03:26:07,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 03:26:07,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 03:26:07,506 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 03:26:07,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 03:26:07,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 03:26:07,507 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 03:26:07,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 03:26:08,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 03:26:08,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 03:26:08,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 03:26:08,013 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 03:26:08,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2020-11-12 03:26:08,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460751279/27cf374e467a44f4ba68702bcdc3e4a3/FLAGc13f81022 [2020-11-12 03:26:08,805 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 03:26:08,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2020-11-12 03:26:08,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460751279/27cf374e467a44f4ba68702bcdc3e4a3/FLAGc13f81022 [2020-11-12 03:26:09,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460751279/27cf374e467a44f4ba68702bcdc3e4a3 [2020-11-12 03:26:09,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 03:26:09,058 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 03:26:09,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 03:26:09,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 03:26:09,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 03:26:09,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:09,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cdff67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09, skipping insertion in model container [2020-11-12 03:26:09,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:09,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 03:26:09,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 03:26:09,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 03:26:09,684 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 03:26:09,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 03:26:09,947 INFO L208 MainTranslator]: Completed translation [2020-11-12 03:26:09,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09 WrapperNode [2020-11-12 03:26:09,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 03:26:09,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 03:26:09,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 03:26:09,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 03:26:09,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 03:26:10,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 03:26:10,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 03:26:10,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 03:26:10,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (1/1) ... [2020-11-12 03:26:10,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 03:26:10,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 03:26:10,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 03:26:10,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 03:26:10,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (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 [2020-11-12 03:26:10,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-12 03:26:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-12 03:26:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-12 03:26:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-12 03:26:10,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-12 03:26:10,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 03:26:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-12 03:26:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 03:26:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 03:26:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 03:26:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 03:26:10,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 03:26:10,144 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 03:26:10,668 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 03:26:10,669 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-12 03:26:10,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:26:10 BoogieIcfgContainer [2020-11-12 03:26:10,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 03:26:10,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 03:26:10,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 03:26:10,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 03:26:10,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 03:26:09" (1/3) ... [2020-11-12 03:26:10,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a9896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:26:10, skipping insertion in model container [2020-11-12 03:26:10,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:09" (2/3) ... [2020-11-12 03:26:10,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a9896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:26:10, skipping insertion in model container [2020-11-12 03:26:10,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:26:10" (3/3) ... [2020-11-12 03:26:10,680 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2020-11-12 03:26:10,697 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 03:26:10,697 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 03:26:10,701 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 03:26:10,702 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 03:26:10,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,733 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,733 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,733 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,736 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,737 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,738 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,739 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,740 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,740 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,740 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,740 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,740 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,741 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,741 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,741 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,741 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,742 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,743 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,743 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,743 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,743 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,746 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,747 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,755 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,755 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,755 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,756 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,756 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,756 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 03:26:10,763 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-12 03:26:10,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-12 03:26:10,800 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 03:26:10,801 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 03:26:10,801 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 03:26:10,801 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 03:26:10,801 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 03:26:10,801 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 03:26:10,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 03:26:10,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 03:26:10,816 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 90 places, 87 transitions, 196 flow [2020-11-12 03:26:10,892 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) [2020-11-12 03:26:11,449 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 553ms [2020-11-12 03:26:11,451 WARN L456 BasicCegarLoop]: Sleep set: input automaton 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) [2020-11-12 03:26:11,453 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 755 states, 695 states have (on average 1.3654676258992806) internal successors, (949), 754 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 03:26:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 755 states, 695 states have (on average 1.3654676258992806) internal successors, (949), 754 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 03:26:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-12 03:26:11,471 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 03:26:11,472 INFO L494 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] [2020-11-12 03:26:11,472 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 03:26:11,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 03:26:11,479 INFO L82 PathProgramCache]: Analyzing trace with hash -173589763, now seen corresponding path program 1 times [2020-11-12 03:26:11,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 03:26:11,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414150446] [2020-11-12 03:26:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 03:26:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 03:26:12,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 03:26:12,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414150446] [2020-11-12 03:26:12,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 03:26:12,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 03:26:12,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462331845] [2020-11-12 03:26:12,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 03:26:12,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 03:26:12,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 03:26:12,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 03:26:12,118 INFO L87 Difference]: Start difference. First operand has 755 states, 695 states have (on average 1.3654676258992806) internal successors, (949), 754 states have internal predecessors, (949), 0 states have call successors, (0), 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 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) [2020-11-12 03:26:12,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 03:26:12,267 INFO L93 Difference]: Finished difference Result 1446 states and 1850 transitions. [2020-11-12 03:26:12,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 03:26:12,269 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 [2020-11-12 03:26:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 03:26:12,283 INFO L225 Difference]: With dead ends: 1446 [2020-11-12 03:26:12,284 INFO L226 Difference]: Without dead ends: 258 [2020-11-12 03:26:12,286 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-12 03:26:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-11-12 03:26:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 172. [2020-11-12 03:26:12,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.263157894736842) internal successors, (216), 171 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 03:26:12,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 216 transitions. [2020-11-12 03:26:12,341 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 216 transitions. Word has length 71 [2020-11-12 03:26:12,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 03:26:12,342 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 216 transitions. [2020-11-12 03:26:12,342 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) [2020-11-12 03:26:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 216 transitions. [2020-11-12 03:26:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-12 03:26:12,346 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 03:26:12,346 INFO L494 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] [2020-11-12 03:26:12,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 03:26:12,346 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 03:26:12,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 03:26:12,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1364491471, now seen corresponding path program 2 times [2020-11-12 03:26:12,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 03:26:12,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130730068] [2020-11-12 03:26:12,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 03:26:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 03:26:12,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 03:26:12,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130730068] [2020-11-12 03:26:12,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 03:26:12,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-12 03:26:12,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316785725] [2020-11-12 03:26:12,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 03:26:12,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 03:26:12,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 03:26:12,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 03:26:12,479 INFO L87 Difference]: Start difference. First operand 172 states and 216 transitions. 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) [2020-11-12 03:26:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 03:26:12,515 INFO L93 Difference]: Finished difference Result 122 states and 130 transitions. [2020-11-12 03:26:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 03:26:12,516 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 [2020-11-12 03:26:12,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 03:26:12,517 INFO L225 Difference]: With dead ends: 122 [2020-11-12 03:26:12,518 INFO L226 Difference]: Without dead ends: 101 [2020-11-12 03:26:12,518 INFO L749 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 [2020-11-12 03:26:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-11-12 03:26:12,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-11-12 03:26:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.09) internal successors, (109), 100 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 03:26:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2020-11-12 03:26:12,527 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 71 [2020-11-12 03:26:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 03:26:12,528 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2020-11-12 03:26:12,528 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) [2020-11-12 03:26:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2020-11-12 03:26:12,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-12 03:26:12,530 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 03:26:12,530 INFO L494 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] [2020-11-12 03:26:12,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 03:26:12,531 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 03:26:12,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 03:26:12,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1294007363, now seen corresponding path program 3 times [2020-11-12 03:26:12,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 03:26:12,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918111205] [2020-11-12 03:26:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 03:26:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 03:26:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 03:26:12,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918111205] [2020-11-12 03:26:12,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 03:26:12,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 03:26:12,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700266862] [2020-11-12 03:26:12,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 03:26:12,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 03:26:12,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 03:26:12,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 03:26:12,763 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. 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) [2020-11-12 03:26:12,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 03:26:12,823 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2020-11-12 03:26:12,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 03:26:12,826 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 [2020-11-12 03:26:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 03:26:12,827 INFO L225 Difference]: With dead ends: 97 [2020-11-12 03:26:12,829 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 03:26:12,829 INFO L749 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 [2020-11-12 03:26:12,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 03:26:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 03:26:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 03:26:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 03:26:12,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2020-11-12 03:26:12,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 03:26:12,831 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 03:26:12,831 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) [2020-11-12 03:26:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 03:26:12,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 03:26:12,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 03:26:12,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 03:26:12 BasicIcfg [2020-11-12 03:26:12,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 03:26:12,840 INFO L168 Benchmark]: Toolchain (without parser) took 3786.54 ms. Allocated memory is still 310.4 MB. Free memory was 284.2 MB in the beginning and 114.2 MB in the end (delta: 170.0 MB). Peak memory consumption was 171.2 MB. Max. memory is 16.0 GB. [2020-11-12 03:26:12,840 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 310.4 MB. Free memory is still 278.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 03:26:12,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.62 ms. Allocated memory is still 310.4 MB. Free memory was 283.6 MB in the beginning and 287.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2020-11-12 03:26:12,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.57 ms. Allocated memory is still 310.4 MB. Free memory was 287.2 MB in the beginning and 286.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 03:26:12,863 INFO L168 Benchmark]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 310.4 MB. Free memory was 286.2 MB in the beginning and 284.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 03:26:12,865 INFO L168 Benchmark]: RCFGBuilder took 615.44 ms. Allocated memory is still 310.4 MB. Free memory was 284.1 MB in the beginning and 260.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 03:26:12,868 INFO L168 Benchmark]: TraceAbstraction took 2164.45 ms. Allocated memory is still 310.4 MB. Free memory was 260.0 MB in the beginning and 114.2 MB in the end (delta: 145.8 MB). Peak memory consumption was 144.7 MB. Max. memory is 16.0 GB. [2020-11-12 03:26:12,882 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 310.4 MB. Free memory is still 278.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 888.62 ms. Allocated memory is still 310.4 MB. Free memory was 283.6 MB in the beginning and 287.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.57 ms. Allocated memory is still 310.4 MB. Free memory was 287.2 MB in the beginning and 286.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 310.4 MB. Free memory was 286.2 MB in the beginning and 284.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 615.44 ms. Allocated memory is still 310.4 MB. Free memory was 284.1 MB in the beginning and 260.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2164.45 ms. Allocated memory is still 310.4 MB. Free memory was 260.0 MB in the beginning and 114.2 MB in the end (delta: 145.8 MB). Peak memory consumption was 144.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 292 SDtfs, 110 SDslu, 734 SDs, 0 SdLazy, 77 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=755occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 86 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 52080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...