/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:29:51,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:29:51,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:29:51,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 20:29:51,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 20:29:51,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 20:29:51,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 20:29:51,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 20:29:51,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 20:29:51,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 20:29:51,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 20:29:51,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 20:29:51,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:29:51,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:29:51,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:29:51,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:29:51,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:29:51,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:29:51,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:29:51,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:29:51,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:29:52,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:29:52,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:29:52,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:29:52,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 20:29:52,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:29:52,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:29:52,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:29:52,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 20:29:52,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:29:52,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:29:52,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:29:52,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:29:52,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:29:52,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:29:52,061 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:29:52,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:29:52,061 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:29:52,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:29:52,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:29:52,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:29:52,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:29:52,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:29:52,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:29:52,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:29:52,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:29:52,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:29:52,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:29:52,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:29:52,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:29:52,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:29:52,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:29:52,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:29:52,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:29:52,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:29:52,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:29:52,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:29:52,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:29:52,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:29:52,392 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:29:52,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-06-05 20:29:52,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b48a616a/8340d19e82bb44c29d916f59e91330b0/FLAG6b2136d0b [2021-06-05 20:29:52,831 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:29:52,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-06-05 20:29:52,833 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 20:29:52,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b48a616a/8340d19e82bb44c29d916f59e91330b0/FLAG6b2136d0b [2021-06-05 20:29:53,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b48a616a/8340d19e82bb44c29d916f59e91330b0 [2021-06-05 20:29:53,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:29:53,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:29:53,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:29:53,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:29:53,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:29:53,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ec6dd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53, skipping insertion in model container [2021-06-05 20:29:53,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:29:53,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:29:53,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:29:53,441 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:29:53,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:29:53,468 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:29:53,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53 WrapperNode [2021-06-05 20:29:53,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:29:53,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:29:53,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:29:53,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:29:53,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:29:53,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:29:53,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:29:53,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:29:53,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... [2021-06-05 20:29:53,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:29:53,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:29:53,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:29:53,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:29:53,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:29:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:29:53,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 20:29:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 20:29:53,583 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 20:29:53,583 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 20:29:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:29:53,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:29:53,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:29:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:29:53,586 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 20:29:53,831 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:29:53,831 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 20:29:53,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:29:53 BoogieIcfgContainer [2021-06-05 20:29:53,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:29:53,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:29:53,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:29:53,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:29:53,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:29:53" (1/3) ... [2021-06-05 20:29:53,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebcac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:29:53, skipping insertion in model container [2021-06-05 20:29:53,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:29:53" (2/3) ... [2021-06-05 20:29:53,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ebcac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:29:53, skipping insertion in model container [2021-06-05 20:29:53,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:29:53" (3/3) ... [2021-06-05 20:29:53,839 INFO L111 eAbstractionObserver]: Analyzing ICFG 11c-double-end.c [2021-06-05 20:29:53,843 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:29:53,844 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:29:53,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 20:29:53,844 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:29:53,862 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,862 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,862 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,863 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,863 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,863 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,863 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,863 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,864 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,864 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,864 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,864 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,866 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,867 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,867 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,867 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:29:53,883 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 20:29:53,906 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 20:29:53,938 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:29:53,939 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:29:53,939 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:29:53,939 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:29:53,939 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:29:53,939 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:29:53,939 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:29:53,939 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:29:53,949 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 25 transitions, 55 flow [2021-06-05 20:29:53,967 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 61 states, 59 states have (on average 1.6271186440677967) internal successors, (96), 60 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:53,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 59 states have (on average 1.6271186440677967) internal successors, (96), 60 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:53,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-06-05 20:29:53,974 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:29:53,975 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:29:53,975 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:29:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:29:53,980 INFO L82 PathProgramCache]: Analyzing trace with hash -927309067, now seen corresponding path program 1 times [2021-06-05 20:29:53,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:29:53,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375925832] [2021-06-05 20:29:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:29:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:29:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:29:54,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:29:54,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375925832] [2021-06-05 20:29:54,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375925832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:29:54,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:29:54,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:29:54,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921035291] [2021-06-05 20:29:54,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:29:54,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:29:54,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:29:54,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:29:54,120 INFO L87 Difference]: Start difference. First operand has 61 states, 59 states have (on average 1.6271186440677967) internal successors, (96), 60 states have internal predecessors, (96), 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 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:54,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:29:54,148 INFO L93 Difference]: Finished difference Result 77 states and 119 transitions. [2021-06-05 20:29:54,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:29:54,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-06-05 20:29:54,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:29:54,156 INFO L225 Difference]: With dead ends: 77 [2021-06-05 20:29:54,157 INFO L226 Difference]: Without dead ends: 25 [2021-06-05 20:29:54,158 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:29:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-06-05 20:29:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-06-05 20:29:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-06-05 20:29:54,182 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 15 [2021-06-05 20:29:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:29:54,183 INFO L482 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-06-05 20:29:54,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-06-05 20:29:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-06-05 20:29:54,183 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:29:54,184 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 20:29:54,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:29:54,184 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 20:29:54,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:29:54,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1900381480, now seen corresponding path program 1 times [2021-06-05 20:29:54,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:29:54,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814769693] [2021-06-05 20:29:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:29:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:29:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 20:29:54,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:29:54,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814769693] [2021-06-05 20:29:54,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814769693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:29:54,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:29:54,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:29:54,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542273773] [2021-06-05 20:29:54,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:29:54,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:29:54,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:29:54,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:29:54,222 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:54,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:29:54,228 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-06-05 20:29:54,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:29:54,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-06-05 20:29:54,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:29:54,229 INFO L225 Difference]: With dead ends: 22 [2021-06-05 20:29:54,229 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 20:29:54,230 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:29:54,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 20:29:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 20:29:54,231 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) [2021-06-05 20:29:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 20:29:54,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-06-05 20:29:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:29:54,231 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 20:29:54,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 20:29:54,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 20:29:54,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 20:29:54,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:29:54,234 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:29:54,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:29:54 BasicIcfg [2021-06-05 20:29:54,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:29:54,240 INFO L168 Benchmark]: Toolchain (without parser) took 972.88 ms. Allocated memory is still 381.7 MB. Free memory was 343.8 MB in the beginning and 321.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:54,241 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 381.7 MB. Free memory was 362.7 MB in the beginning and 362.6 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:29:54,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.00 ms. Allocated memory is still 381.7 MB. Free memory was 343.6 MB in the beginning and 364.5 MB in the end (delta: -20.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:54,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.86 ms. Allocated memory is still 381.7 MB. Free memory was 363.7 MB in the beginning and 362.8 MB in the end (delta: 881.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:29:54,242 INFO L168 Benchmark]: Boogie Preprocessor took 18.59 ms. Allocated memory is still 381.7 MB. Free memory was 362.8 MB in the beginning and 361.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:54,243 INFO L168 Benchmark]: RCFGBuilder took 315.30 ms. Allocated memory is still 381.7 MB. Free memory was 361.4 MB in the beginning and 348.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:54,244 INFO L168 Benchmark]: TraceAbstraction took 405.60 ms. Allocated memory is still 381.7 MB. Free memory was 348.1 MB in the beginning and 321.7 MB in the end (delta: 26.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 20:29:54,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 381.7 MB. Free memory was 362.7 MB in the beginning and 362.6 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 202.00 ms. Allocated memory is still 381.7 MB. Free memory was 343.6 MB in the beginning and 364.5 MB in the end (delta: -20.9 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.86 ms. Allocated memory is still 381.7 MB. Free memory was 363.7 MB in the beginning and 362.8 MB in the end (delta: 881.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.59 ms. Allocated memory is still 381.7 MB. Free memory was 362.8 MB in the beginning and 361.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 315.30 ms. Allocated memory is still 381.7 MB. Free memory was 361.4 MB in the beginning and 348.1 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 405.60 ms. Allocated memory is still 381.7 MB. Free memory was 348.1 MB in the beginning and 321.7 MB in the end (delta: 26.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 296.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.7ms, AutomataDifference: 58.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 10 SDslu, 32 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.4ms SsaConstructionTime, 24.2ms SatisfiabilityAnalysisTime, 67.5ms InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...