/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-dev-29289db [2021-06-05 03:08:48,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:08:48,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:08:48,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 03:08:48,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 03:08:48,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 03:08:48,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 03:08:48,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 03:08:48,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 03:08:48,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 03:08:48,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 03:08:48,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 03:08:48,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 03:08:48,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 03:08:48,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 03:08:48,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 03:08:48,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 03:08:48,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 03:08:48,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 03:08:48,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 03:08:48,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 03:08:48,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 03:08:48,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 03:08:48,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 03:08:48,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 03:08:48,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 03:08:48,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 03:08:48,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 03:08:48,978 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 03:08:49,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:08:49,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:08:49,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:08:49,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:08:49,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:08:49,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:08:49,003 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:08:49,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:08:49,003 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:08:49,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:08:49,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:08:49,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:08:49,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:08:49,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:08:49,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:08:49,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:08:49,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:08:49,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:08:49,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:08:49,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:08:49,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:08:49,006 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:08:49,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:08:49,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:08:49,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:08:49,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:08:49,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:08:49,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 03:08:49,287 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 03:08:49,288 INFO L432 ainManager$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 03:08:49,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c8b723ad/b523506052a14fd4b268ad0dd1a91601/FLAGffba86163 [2021-06-05 03:08:49,708 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 03:08:49,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-06-05 03:08:49,709 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 03:08:49,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c8b723ad/b523506052a14fd4b268ad0dd1a91601/FLAGffba86163 [2021-06-05 03:08:49,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c8b723ad/b523506052a14fd4b268ad0dd1a91601 [2021-06-05 03:08:49,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:08:49,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 03:08:49,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 03:08:49,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 03:08:49,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 03:08:49,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d6b3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49, skipping insertion in model container [2021-06-05 03:08:49,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 03:08:49,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 03:08:49,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 03:08:49,923 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 03:08:49,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 03:08:49,940 INFO L208 MainTranslator]: Completed translation [2021-06-05 03:08:49,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49 WrapperNode [2021-06-05 03:08:49,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 03:08:49,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:08:49,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:08:49,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:08:49,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:08:49,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:08:49,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:08:49,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:08:49,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (1/1) ... [2021-06-05 03:08:49,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:08:49,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:08:49,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:08:49,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:08:49,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (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 03:08:50,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 03:08:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 03:08:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 03:08:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 03:08:50,039 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 03:08:50,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:08:50,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:08:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 03:08:50,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 03:08:50,041 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 03:08:50,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:08:50,187 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 03:08:50,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:08:50 BoogieIcfgContainer [2021-06-05 03:08:50,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:08:50,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:08:50,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:08:50,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:08:50,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 03:08:49" (1/3) ... [2021-06-05 03:08:50,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76925c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:08:50, skipping insertion in model container [2021-06-05 03:08:50,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:49" (2/3) ... [2021-06-05 03:08:50,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76925c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:08:50, skipping insertion in model container [2021-06-05 03:08:50,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:08:50" (3/3) ... [2021-06-05 03:08:50,193 INFO L111 eAbstractionObserver]: Analyzing ICFG 11c-double-end.c [2021-06-05 03:08:50,197 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:08:50,197 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:08:50,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 03:08:50,197 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:08:50,234 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,234 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,234 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,234 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,234 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,234 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,235 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,235 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,235 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,235 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,235 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,235 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,236 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,236 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,237 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,237 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:50,238 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 03:08:50,252 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 03:08:50,276 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:08:50,276 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:08:50,276 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:08:50,276 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:08:50,276 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:08:50,276 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:08:50,276 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:08:50,276 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:08:50,288 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 25 transitions, 55 flow [2021-06-05 03:08:50,298 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 03:08:50,300 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 03:08:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-06-05 03:08:50,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:08:50,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:08:50,305 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:08:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:08:50,312 INFO L82 PathProgramCache]: Analyzing trace with hash -927309067, now seen corresponding path program 1 times [2021-06-05 03:08:50,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:08:50,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230634377] [2021-06-05 03:08:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:08:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:08:50,441 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 03:08:50,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:08:50,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230634377] [2021-06-05 03:08:50,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230634377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:08:50,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:08:50,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 03:08:50,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932032804] [2021-06-05 03:08:50,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:08:50,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:08:50,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:08:50,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:50,460 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 03:08:50,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:08:50,487 INFO L93 Difference]: Finished difference Result 77 states and 119 transitions. [2021-06-05 03:08:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:08:50,489 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 03:08:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:08:50,494 INFO L225 Difference]: With dead ends: 77 [2021-06-05 03:08:50,494 INFO L226 Difference]: Without dead ends: 25 [2021-06-05 03:08:50,496 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-06-05 03:08:50,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-06-05 03:08:50,516 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 03:08:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-06-05 03:08:50,517 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 15 [2021-06-05 03:08:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:08:50,518 INFO L482 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-06-05 03:08:50,518 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 03:08:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-06-05 03:08:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-06-05 03:08:50,519 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:08:50,519 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:08:50,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:08:50,520 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:08:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:08:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1900381480, now seen corresponding path program 1 times [2021-06-05 03:08:50,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:08:50,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691380467] [2021-06-05 03:08:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:08:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:08:50,568 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 03:08:50,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:08:50,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691380467] [2021-06-05 03:08:50,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691380467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:08:50,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:08:50,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 03:08:50,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665407730] [2021-06-05 03:08:50,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:08:50,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:08:50,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:08:50,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:50,573 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 03:08:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:08:50,584 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2021-06-05 03:08:50,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:08:50,584 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 03:08:50,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:08:50,585 INFO L225 Difference]: With dead ends: 22 [2021-06-05 03:08:50,585 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 03:08:50,586 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:50,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 03:08:50,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 03:08:50,587 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 03:08:50,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 03:08:50,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-06-05 03:08:50,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:08:50,590 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 03:08:50,590 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 03:08:50,592 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 03:08:50,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 03:08:50,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:08:50,594 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:08:50,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:08:50 BasicIcfg [2021-06-05 03:08:50,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:08:50,596 INFO L168 Benchmark]: Toolchain (without parser) took 846.21 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 294.8 MB in the end (delta: 22.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:50,597 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.2 MB in the beginning and 335.1 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:08:50,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.65 ms. Allocated memory is still 354.4 MB. Free memory was 316.9 MB in the beginning and 337.8 MB in the end (delta: -20.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:50,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.46 ms. Allocated memory is still 354.4 MB. Free memory was 337.8 MB in the beginning and 336.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:50,598 INFO L168 Benchmark]: Boogie Preprocessor took 15.14 ms. Allocated memory is still 354.4 MB. Free memory was 336.8 MB in the beginning and 335.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:50,598 INFO L168 Benchmark]: RCFGBuilder took 210.68 ms. Allocated memory is still 354.4 MB. Free memory was 335.7 MB in the beginning and 322.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:50,599 INFO L168 Benchmark]: TraceAbstraction took 406.10 ms. Allocated memory is still 354.4 MB. Free memory was 321.1 MB in the beginning and 294.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:50,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 354.4 MB. Free memory was 335.2 MB in the beginning and 335.1 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 188.65 ms. Allocated memory is still 354.4 MB. Free memory was 316.9 MB in the beginning and 337.8 MB in the end (delta: -20.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.46 ms. Allocated memory is still 354.4 MB. Free memory was 337.8 MB in the beginning and 336.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.14 ms. Allocated memory is still 354.4 MB. Free memory was 336.8 MB in the beginning and 335.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 210.68 ms. Allocated memory is still 354.4 MB. Free memory was 335.7 MB in the beginning and 322.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 406.10 ms. Allocated memory is still 354.4 MB. Free memory was 321.1 MB in the beginning and 294.8 MB in the end (delta: 26.2 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 with 1 thread instances CFG has 3 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 318.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.0ms, AutomataDifference: 62.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 10 SDslu, 32 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms 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: 16.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.3ms SsaConstructionTime, 35.2ms SatisfiabilityAnalysisTime, 65.7ms 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...