/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:25:51,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:25:51,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:25:51,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:25:51,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:25:51,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:25:51,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:25:51,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:25:51,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:25:51,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:25:51,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:25:51,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:25:51,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:25:51,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:25:51,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:25:51,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:25:51,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:25:51,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:25:51,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:25:51,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:25:51,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:25:51,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:25:51,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:25:51,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:25:51,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 04:25:51,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 04:25:51,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 04:25:51,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 04:25:51,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 04:25:51,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 04:25:51,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:25:51,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:25:51,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:25:51,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:25:51,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:25:51,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:25:51,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:25:51,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:25:51,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:25:51,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:25:51,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:25:51,370 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-PN-NoLbe.epf [2021-03-11 04:25:51,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:25:51,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:25:51,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:25:51,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:25:51,399 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:25:51,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:25:51,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:25:51,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:25:51,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:25:51,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:25:51,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:25:51,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:25:51,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:51,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:25:51,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:25:51,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:25:51,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:25:51,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:25:51,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:25:51,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 04:25:51,678 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 04:25:51,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2021-03-11 04:25:51,731 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd836ca3/f74e8172c63e478c819c564f33706b4b/FLAGa28443074 [2021-03-11 04:25:52,085 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 04:25:52,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2021-03-11 04:25:52,086 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 04:25:52,107 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd836ca3/f74e8172c63e478c819c564f33706b4b/FLAGa28443074 [2021-03-11 04:25:52,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd836ca3/f74e8172c63e478c819c564f33706b4b [2021-03-11 04:25:52,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:25:52,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 04:25:52,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:52,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 04:25:52,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 04:25:52,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a775089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52, skipping insertion in model container [2021-03-11 04:25:52,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 04:25:52,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 04:25:52,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:52,277 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 04:25:52,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:52,296 INFO L208 MainTranslator]: Completed translation [2021-03-11 04:25:52,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52 WrapperNode [2021-03-11 04:25:52,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:52,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:52,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:25:52,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:25:52,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:52,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:25:52,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:25:52,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:25:52,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (1/1) ... [2021-03-11 04:25:52,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:25:52,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:25:52,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:25:52,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:25:52,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (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 [2021-03-11 04:25:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 04:25:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 04:25:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 04:25:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-11 04:25:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-11 04:25:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:25:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:25:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 04:25:52,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 04:25:52,412 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:25:52,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:25:52,568 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 04:25:52,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:52 BoogieIcfgContainer [2021-03-11 04:25:52,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:25:52,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:25:52,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:25:52,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:25:52,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 04:25:52" (1/3) ... [2021-03-11 04:25:52,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474f13b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:52, skipping insertion in model container [2021-03-11 04:25:52,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:52" (2/3) ... [2021-03-11 04:25:52,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474f13b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:52, skipping insertion in model container [2021-03-11 04:25:52,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:52" (3/3) ... [2021-03-11 04:25:52,573 INFO L111 eAbstractionObserver]: Analyzing ICFG 14b-subsequent-blocks.c [2021-03-11 04:25:52,577 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:25:52,579 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:25:52,579 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:25:52,590 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,591 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,592 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,592 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,592 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,592 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,593 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,593 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,593 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,593 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 04:25:52,595 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 04:25:52,606 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-11 04:25:52,618 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:25:52,619 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:25:52,619 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:25:52,619 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:25:52,619 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:25:52,619 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:25:52,619 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:25:52,619 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:25:52,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-03-11 04:25:52,636 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-11 04:25:52,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:52,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-11 04:25:52,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-03-11 04:25:52,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 17 transitions, 37 flow [2021-03-11 04:25:52,643 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-11 04:25:52,643 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:52,643 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:52,643 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:25:52,643 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:52,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:52,646 INFO L82 PathProgramCache]: Analyzing trace with hash 2136321213, now seen corresponding path program 1 times [2021-03-11 04:25:52,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:52,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577113945] [2021-03-11 04:25:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:52,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:52,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:52,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:52,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:52,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:52,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:52,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577113945] [2021-03-11 04:25:52,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:52,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:25:52,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583547536] [2021-03-11 04:25:52,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 04:25:52,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:52,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 04:25:52,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 04:25:52,761 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 23 [2021-03-11 04:25:52,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 37 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-03-11 04:25:52,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:52,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 23 [2021-03-11 04:25:52,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:52,786 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2021-03-11 04:25:52,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:52,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 26. Up to 6 conditions per place. [2021-03-11 04:25:52,788 INFO L132 encePairwiseOnDemand]: 19/23 looper letters, 2 selfloop transitions, 5 changer transitions 1/20 dead transitions. [2021-03-11 04:25:52,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 20 transitions, 59 flow [2021-03-11 04:25:52,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 04:25:52,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 04:25:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2021-03-11 04:25:52,795 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8369565217391305 [2021-03-11 04:25:52,795 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 77 transitions. [2021-03-11 04:25:52,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 77 transitions. [2021-03-11 04:25:52,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:52,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 77 transitions. [2021-03-11 04:25:52,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2021-03-11 04:25:52,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2021-03-11 04:25:52,800 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2021-03-11 04:25:52,801 INFO L185 Difference]: Start difference. First operand has 21 places, 17 transitions, 37 flow. Second operand 4 states and 77 transitions. [2021-03-11 04:25:52,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 20 transitions, 59 flow [2021-03-11 04:25:52,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 58 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:25:52,805 INFO L241 Difference]: Finished difference. Result has 24 places, 19 transitions, 56 flow [2021-03-11 04:25:52,806 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2021-03-11 04:25:52,807 INFO L335 CegarLoopForPetriNet]: 21 programPoint places, 3 predicate places. [2021-03-11 04:25:52,807 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 56 flow [2021-03-11 04:25:52,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2021-03-11 04:25:52,808 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:52,808 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:25:52,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:25:52,809 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:52,810 INFO L82 PathProgramCache]: Analyzing trace with hash 10326556, now seen corresponding path program 1 times [2021-03-11 04:25:52,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:52,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613444418] [2021-03-11 04:25:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:25:52,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:52,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:25:52,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:25:52,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:25:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:25:52,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613444418] [2021-03-11 04:25:52,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:25:52,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 04:25:52,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374022417] [2021-03-11 04:25:52,854 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:25:52,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:25:52,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:25:52,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:25:52,862 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 23 [2021-03-11 04:25:52,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-03-11 04:25:52,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:25:52,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 23 [2021-03-11 04:25:52,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:25:52,884 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-11 04:25:52,884 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 04:25:52,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 21 events. 0/21 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-11 04:25:52,885 INFO L132 encePairwiseOnDemand]: 20/23 looper letters, 3 selfloop transitions, 2 changer transitions 2/19 dead transitions. [2021-03-11 04:25:52,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 70 flow [2021-03-11 04:25:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:25:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:25:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2021-03-11 04:25:52,887 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8405797101449275 [2021-03-11 04:25:52,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 58 transitions. [2021-03-11 04:25:52,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 58 transitions. [2021-03-11 04:25:52,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:25:52,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 58 transitions. [2021-03-11 04:25:52,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-03-11 04:25:52,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2021-03-11 04:25:52,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2021-03-11 04:25:52,891 INFO L185 Difference]: Start difference. First operand has 24 places, 19 transitions, 56 flow. Second operand 3 states and 58 transitions. [2021-03-11 04:25:52,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 70 flow [2021-03-11 04:25:52,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 70 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 04:25:52,892 INFO L241 Difference]: Finished difference. Result has 27 places, 17 transitions, 55 flow [2021-03-11 04:25:52,893 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=55, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2021-03-11 04:25:52,893 INFO L335 CegarLoopForPetriNet]: 21 programPoint places, 6 predicate places. [2021-03-11 04:25:52,893 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 55 flow [2021-03-11 04:25:52,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-03-11 04:25:52,893 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:52,894 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:25:52,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 04:25:52,894 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:52,897 INFO L82 PathProgramCache]: Analyzing trace with hash 10863166, now seen corresponding path program 2 times [2021-03-11 04:25:52,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:52,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876200782] [2021-03-11 04:25:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 04:25:52,913 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 04:25:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 04:25:52,919 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 04:25:52,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 04:25:52,937 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 04:25:52,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 04:25:52,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:25:52 BasicIcfg [2021-03-11 04:25:52,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 04:25:52,956 INFO L168 Benchmark]: Toolchain (without parser) took 830.70 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.7 MB in the beginning and 285.9 MB in the end (delta: -51.2 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:52,957 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:52,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.72 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.2 MB in the beginning and 336.3 MB in the end (delta: -102.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:52,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.62 ms. Allocated memory is still 352.3 MB. Free memory was 336.3 MB in the beginning and 335.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:52,959 INFO L168 Benchmark]: Boogie Preprocessor took 14.77 ms. Allocated memory is still 352.3 MB. Free memory was 335.1 MB in the beginning and 334.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:52,960 INFO L168 Benchmark]: RCFGBuilder took 231.51 ms. Allocated memory is still 352.3 MB. Free memory was 334.0 MB in the beginning and 321.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:52,961 INFO L168 Benchmark]: TraceAbstraction took 384.32 ms. Allocated memory is still 352.3 MB. Free memory was 320.9 MB in the beginning and 285.9 MB in the end (delta: 35.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:52,966 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 171.72 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.2 MB in the beginning and 336.3 MB in the end (delta: -102.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.62 ms. Allocated memory is still 352.3 MB. Free memory was 336.3 MB in the beginning and 335.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.77 ms. Allocated memory is still 352.3 MB. Free memory was 335.1 MB in the beginning and 334.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 231.51 ms. Allocated memory is still 352.3 MB. Free memory was 334.0 MB in the beginning and 321.6 MB in the end (delta: 12.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 384.32 ms. Allocated memory is still 352.3 MB. Free memory was 320.9 MB in the beginning and 285.9 MB in the end (delta: 35.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, x=-1] [L27] 0 x = 1 [L28] 0 x = x + 1 VAL [arg={0:0}, x=2] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L31] 0 x = x + 1 [L32] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, x=2] [L35] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 321.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 87.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.8ms SsaConstructionTime, 31.1ms SatisfiabilityAnalysisTime, 60.7ms InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...