/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 21:44:30,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 21:44:30,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 21:44:30,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 21:44:30,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 21:44:30,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 21:44:30,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 21:44:30,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 21:44:30,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 21:44:30,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 21:44:30,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 21:44:30,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 21:44:30,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 21:44:30,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 21:44:30,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 21:44:30,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 21:44:30,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 21:44:30,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 21:44:30,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 21:44:30,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 21:44:30,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 21:44:30,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 21:44:30,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 21:44:30,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 21:44:30,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-12 21:44:30,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-12 21:44:30,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-12 21:44:30,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-12 21:44:30,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-12 21:44:30,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-12 21:44:30,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-12 21:44:30,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-12 21:44:30,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-12 21:44:30,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-12 21:44:30,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-12 21:44:30,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-12 21:44:30,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-12 21:44:30,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-12 21:44:30,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 21:44:30,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 21:44:30,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 21:44:30,440 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 [2021-08-12 21:44:30,486 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 21:44:30,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 21:44:30,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 21:44:30,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 21:44:30,489 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 21:44:30,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 21:44:30,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 21:44:30,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 21:44:30,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 21:44:30,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 21:44:30,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 21:44:30,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 21:44:30,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 21:44:30,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 21:44:30,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 21:44:30,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 21:44:30,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 21:44:30,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 21:44:30,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 21:44:30,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 21:44:30,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 21:44:30,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 21:44:30,777 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 21:44:30,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c [2021-08-12 21:44:30,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4670b9536/30ad988a3dfe4a08906adc87197df1cf/FLAGe777c2c70 [2021-08-12 21:44:31,220 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 21:44:31,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/08-abort-before-end.c [2021-08-12 21:44:31,220 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-08-12 21:44:31,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4670b9536/30ad988a3dfe4a08906adc87197df1cf/FLAGe777c2c70 [2021-08-12 21:44:31,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4670b9536/30ad988a3dfe4a08906adc87197df1cf [2021-08-12 21:44:31,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 21:44:31,268 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 21:44:31,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 21:44:31,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 21:44:31,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 21:44:31,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@933881b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31, skipping insertion in model container [2021-08-12 21:44:31,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 21:44:31,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 21:44:31,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 21:44:31,434 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 21:44:31,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 21:44:31,450 INFO L208 MainTranslator]: Completed translation [2021-08-12 21:44:31,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31 WrapperNode [2021-08-12 21:44:31,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 21:44:31,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 21:44:31,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 21:44:31,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 21:44:31,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 21:44:31,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 21:44:31,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 21:44:31,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 21:44:31,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (1/1) ... [2021-08-12 21:44:31,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 21:44:31,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 21:44:31,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 21:44:31,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 21:44:31,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (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 [2021-08-12 21:44:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 21:44:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 21:44:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 21:44:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-08-12 21:44:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-08-12 21:44:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 21:44:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 21:44:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 21:44:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 21:44:31,549 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 21:44:31,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 21:44:31,760 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-12 21:44:31,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:44:31 BoogieIcfgContainer [2021-08-12 21:44:31,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 21:44:31,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 21:44:31,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 21:44:31,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 21:44:31,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 09:44:31" (1/3) ... [2021-08-12 21:44:31,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6caae606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:44:31, skipping insertion in model container [2021-08-12 21:44:31,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 09:44:31" (2/3) ... [2021-08-12 21:44:31,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6caae606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:44:31, skipping insertion in model container [2021-08-12 21:44:31,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:44:31" (3/3) ... [2021-08-12 21:44:31,766 INFO L111 eAbstractionObserver]: Analyzing ICFG 08-abort-before-end.c [2021-08-12 21:44:31,770 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 21:44:31,770 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 21:44:31,770 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 21:44:31,784 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,784 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,784 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,785 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,785 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,785 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,785 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,785 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,791 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,791 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,791 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,791 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,793 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,793 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,793 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,793 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 21:44:31,797 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-12 21:44:31,812 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-12 21:44:31,843 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 21:44:31,844 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 21:44:31,844 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 21:44:31,845 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 21:44:31,845 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 21:44:31,845 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 21:44:31,845 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 21:44:31,845 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 21:44:31,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 57 flow [2021-08-12 21:44:31,881 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-08-12 21:44:31,881 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 21:44:31,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 0/25 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. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-08-12 21:44:31,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 57 flow [2021-08-12 21:44:31,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2021-08-12 21:44:31,896 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-08-12 21:44:31,897 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 21:44:31,897 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:44:31,897 INFO L266 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 21:44:31,898 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-08-12 21:44:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:44:31,902 INFO L82 PathProgramCache]: Analyzing trace with hash -811450243, now seen corresponding path program 1 times [2021-08-12 21:44:31,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:44:31,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183918365] [2021-08-12 21:44:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:44:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:44:32,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:44:32,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:44:32,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:44:32,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:44:32,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:44:32,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:44:32,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183918365] [2021-08-12 21:44:32,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183918365] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:44:32,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:44:32,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 21:44:32,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015137701] [2021-08-12 21:44:32,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:44:32,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:44:32,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:44:32,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:44:32,081 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 26 [2021-08-12 21:44:32,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-08-12 21:44:32,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:44:32,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 26 [2021-08-12 21:44:32,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:44:32,102 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-08-12 21:44:32,102 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-12 21:44:32,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-12 21:44:32,103 INFO L132 encePairwiseOnDemand]: 24/26 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-08-12 21:44:32,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 45 flow [2021-08-12 21:44:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:44:32,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:44:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2021-08-12 21:44:32,111 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8846153846153846 [2021-08-12 21:44:32,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 69 transitions. [2021-08-12 21:44:32,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 69 transitions. [2021-08-12 21:44:32,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:44:32,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 69 transitions. [2021-08-12 21:44:32,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-08-12 21:44:32,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-08-12 21:44:32,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2021-08-12 21:44:32,121 INFO L348 CegarLoopForPetriNet]: 24 programPoint places, 1 predicate places. [2021-08-12 21:44:32,122 INFO L482 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 45 flow [2021-08-12 21:44:32,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-08-12 21:44:32,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 21:44:32,183 INFO L742 CegarLoopForPetriNet]: Computed Owicki-Gries annotation of size 4262 in 56657061ns [2021-08-12 21:44:32,185 INFO L113 kiGriesValidityCheck]: 13#(and (not v_np22_1) (not v_np23_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np1_1) (not v_np11_1) (not v_np14_1) v_np12_1 (not v_np6_1) (not v_np4_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (<= 1 ~x~0) (not v_np2_1) (not v_np17_1) (not v_np21_1) (not v_np18_1) (not v_np19_1) v_np0_1) [2021-08-12 21:44:32,189 INFO L113 kiGriesValidityCheck]: 23#(or (and (not v_np23_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (<= 1 ~x~0) (not v_np2_1) (not v_np17_1) (not v_np21_1) (not v_np18_1) (not v_np19_1) v_np1_1 v_np4_1 (not v_np0_1) v_np22_1) (and (not v_np23_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (<= 1 ~x~0) (not v_np2_1) (not v_np17_1) (not v_np18_1) (not v_np19_1) v_np1_1 (not v_np0_1) v_np21_1 v_np22_1) (and (not v_np23_1) (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np9_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (<= 1 ~x~0) (not v_np2_1) (not v_np17_1) (not v_np21_1) (not v_np18_1) (not v_np19_1) v_np1_1 v_np3_1 (not v_np0_1) v_np22_1) (and (not v_np20_1) (not v_np5_1) (not v_np7_1) (not v_np3_1) (not v_np9_1) (not v_np8_1) (not v_np11_1) (not v_np14_1) (not v_np6_1) (not v_np4_1) (not v_np12_1) (not v_np13_1) (not v_np10_1) (not v_np16_1) (not v_np15_1) (<= 1 ~x~0) (not v_np2_1) (not v_np17_1) (not v_np21_1) (not v_np18_1) (not v_np19_1) v_np1_1 (not v_np0_1) v_np22_1 v_np23_1)) [2021-08-12 21:44:32,203 INFO L748 CegarLoopForPetriNet]: Checked inductivity and non-interference of Owicki-Gries annotation in 23973539ns [2021-08-12 21:44:32,204 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Invalid Owicki-Gries annotation at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:230) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-12 21:44:32,209 INFO L168 Benchmark]: Toolchain (without parser) took 939.73 ms. Allocated memory is still 215.0 MB. Free memory was 177.2 MB in the beginning and 148.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2021-08-12 21:44:32,209 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 215.0 MB. Free memory is still 195.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-12 21:44:32,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.80 ms. Allocated memory is still 215.0 MB. Free memory was 177.1 MB in the beginning and 196.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2021-08-12 21:44:32,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.04 ms. Allocated memory is still 215.0 MB. Free memory was 196.7 MB in the beginning and 195.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 21:44:32,212 INFO L168 Benchmark]: Boogie Preprocessor took 14.52 ms. Allocated memory is still 215.0 MB. Free memory was 195.2 MB in the beginning and 194.7 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-12 21:44:32,213 INFO L168 Benchmark]: RCFGBuilder took 275.65 ms. Allocated memory is still 215.0 MB. Free memory was 194.7 MB in the beginning and 180.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-12 21:44:32,213 INFO L168 Benchmark]: TraceAbstraction took 445.05 ms. Allocated memory is still 215.0 MB. Free memory was 180.0 MB in the beginning and 148.0 MB in the end (delta: 32.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2021-08-12 21:44:32,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 215.0 MB. Free memory is still 195.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 180.80 ms. Allocated memory is still 215.0 MB. Free memory was 177.1 MB in the beginning and 196.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 18.04 ms. Allocated memory is still 215.0 MB. Free memory was 196.7 MB in the beginning and 195.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.52 ms. Allocated memory is still 215.0 MB. Free memory was 195.2 MB in the beginning and 194.7 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 275.65 ms. Allocated memory is still 215.0 MB. Free memory was 194.7 MB in the beginning and 180.5 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 445.05 ms. Allocated memory is still 215.0 MB. Free memory was 180.0 MB in the beginning and 148.0 MB in the end (delta: 32.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Invalid Owicki-Gries annotation de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Invalid Owicki-Gries annotation: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNet.computeOwickiGries(CegarLoopForPetriNet.java:752) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...