/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/07-return-before-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 03:08:34,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:08:34,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:08:34,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 03:08:34,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 03:08:34,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 03:08:34,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 03:08:34,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 03:08:34,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 03:08:34,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 03:08:34,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 03:08:34,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 03:08:34,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 03:08:34,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 03:08:34,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 03:08:34,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 03:08:34,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 03:08:34,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 03:08:34,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 03:08:34,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 03:08:34,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 03:08:34,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 03:08:34,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 03:08:34,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 03:08:34,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 03:08:34,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 03:08:34,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 03:08:34,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 03:08:34,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 03:08:34,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 03:08:34,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 03:08:34,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 03:08:34,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 03:08:34,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 03:08:34,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 03:08:34,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 03:08:34,311 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 03:08:34,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:08:34,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:08:34,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:08:34,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:08:34,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:08:34,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:08:34,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:08:34,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:08:34,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:08:34,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:08:34,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:08:34,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:08:34,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:08:34,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:08:34,329 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:08:34,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:08:34,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:08:34,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:08:34,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:08:34,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:08:34,563 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 03:08:34,564 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 03:08:34,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/07-return-before-end.c [2021-06-05 03:08:34,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b041860c/8bc4f99dd58849ee89a525250c5062b1/FLAG573bccf87 [2021-06-05 03:08:34,928 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 03:08:34,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/07-return-before-end.c [2021-06-05 03:08:34,929 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 03:08:34,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b041860c/8bc4f99dd58849ee89a525250c5062b1/FLAG573bccf87 [2021-06-05 03:08:35,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b041860c/8bc4f99dd58849ee89a525250c5062b1 [2021-06-05 03:08:35,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:08:35,362 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 03:08:35,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 03:08:35,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 03:08:35,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 03:08:35,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1888e26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35, skipping insertion in model container [2021-06-05 03:08:35,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 03:08:35,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 03:08:35,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 03:08:35,477 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 03:08:35,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 03:08:35,491 INFO L208 MainTranslator]: Completed translation [2021-06-05 03:08:35,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35 WrapperNode [2021-06-05 03:08:35,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 03:08:35,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:08:35,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:08:35,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:08:35,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:08:35,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:08:35,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:08:35,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:08:35,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (1/1) ... [2021-06-05 03:08:35,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:08:35,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:08:35,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:08:35,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:08:35,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (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 03:08:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 03:08:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 03:08:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 03:08:35,617 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-05 03:08:35,618 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-05 03:08:35,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:08:35,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:08:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 03:08:35,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 03:08:35,619 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 03:08:35,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:08:35,847 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 03:08:35,848 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: fooEXIT is neither atomic block end nor error location. [2021-06-05 03:08:35,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:08:35 BoogieIcfgContainer [2021-06-05 03:08:35,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:08:35,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:08:35,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:08:35,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:08:35,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 03:08:35" (1/3) ... [2021-06-05 03:08:35,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d51d2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:08:35, skipping insertion in model container [2021-06-05 03:08:35,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 03:08:35" (2/3) ... [2021-06-05 03:08:35,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d51d2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:08:35, skipping insertion in model container [2021-06-05 03:08:35,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:08:35" (3/3) ... [2021-06-05 03:08:35,853 INFO L111 eAbstractionObserver]: Analyzing ICFG 07-return-before-end.c [2021-06-05 03:08:35,857 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:08:35,857 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:08:35,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 03:08:35,858 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:08:35,888 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,888 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,888 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,888 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,889 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,890 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,890 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,890 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,890 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,890 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,893 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,893 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,893 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,893 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 03:08:35,897 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 03:08:35,912 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 03:08:35,933 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:08:35,933 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:08:35,933 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:08:35,933 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:08:35,933 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:08:35,933 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:08:35,933 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:08:35,933 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:08:35,941 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 26 transitions, 57 flow [2021-06-05 03:08:35,952 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 52 states, 50 states have (on average 1.76) internal successors, (88), 51 states have internal predecessors, (88), 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 03:08:35,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.76) internal successors, (88), 51 states have internal predecessors, (88), 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 03:08:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-06-05 03:08:35,964 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:08:35,965 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:08:35,965 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:08:35,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:08:35,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1509984702, now seen corresponding path program 1 times [2021-06-05 03:08:35,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:08:35,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782649087] [2021-06-05 03:08:35,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:08:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:08:36,090 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 03:08:36,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:08:36,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782649087] [2021-06-05 03:08:36,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782649087] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:08:36,091 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:08:36,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 03:08:36,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425731685] [2021-06-05 03:08:36,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:08:36,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:08:36,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:08:36,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:36,104 INFO L87 Difference]: Start difference. First operand has 52 states, 50 states have (on average 1.76) internal successors, (88), 51 states have internal predecessors, (88), 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 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 03:08:36,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:08:36,119 INFO L93 Difference]: Finished difference Result 58 states and 89 transitions. [2021-06-05 03:08:36,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:08:36,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-06-05 03:08:36,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:08:36,125 INFO L225 Difference]: With dead ends: 58 [2021-06-05 03:08:36,125 INFO L226 Difference]: Without dead ends: 25 [2021-06-05 03:08:36,126 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-06-05 03:08:36,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-06-05 03:08:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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 03:08:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2021-06-05 03:08:36,146 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 16 [2021-06-05 03:08:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:08:36,146 INFO L482 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-06-05 03:08:36,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 03:08:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-06-05 03:08:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-06-05 03:08:36,147 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:08:36,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:08:36,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:08:36,148 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:08:36,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:08:36,148 INFO L82 PathProgramCache]: Analyzing trace with hash -603643428, now seen corresponding path program 1 times [2021-06-05 03:08:36,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:08:36,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773250231] [2021-06-05 03:08:36,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:08:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:08:36,177 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 03:08:36,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:08:36,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773250231] [2021-06-05 03:08:36,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773250231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:08:36,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:08:36,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:08:36,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990875008] [2021-06-05 03:08:36,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:08:36,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:08:36,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:08:36,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:36,182 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 03:08:36,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:08:36,190 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2021-06-05 03:08:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:08:36,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-06-05 03:08:36,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:08:36,192 INFO L225 Difference]: With dead ends: 25 [2021-06-05 03:08:36,193 INFO L226 Difference]: Without dead ends: 23 [2021-06-05 03:08:36,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:08:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-06-05 03:08:36,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-06-05 03:08:36,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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 03:08:36,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-06-05 03:08:36,206 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2021-06-05 03:08:36,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:08:36,206 INFO L482 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-06-05 03:08:36,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 03:08:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-06-05 03:08:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-06-05 03:08:36,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:08:36,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:08:36,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:08:36,208 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 03:08:36,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:08:36,211 INFO L82 PathProgramCache]: Analyzing trace with hash -603552288, now seen corresponding path program 2 times [2021-06-05 03:08:36,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:08:36,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945606763] [2021-06-05 03:08:36,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:08:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:08:36,272 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 03:08:36,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:08:36,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945606763] [2021-06-05 03:08:36,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945606763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:08:36,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:08:36,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:08:36,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270040579] [2021-06-05 03:08:36,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 03:08:36,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:08:36,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 03:08:36,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 03:08:36,274 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 03:08:36,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:08:36,295 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-06-05 03:08:36,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 03:08:36,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2021-06-05 03:08:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:08:36,296 INFO L225 Difference]: With dead ends: 22 [2021-06-05 03:08:36,296 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 03:08:36,296 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 03:08:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 03:08:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 03:08:36,297 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 03:08:36,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 03:08:36,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-06-05 03:08:36,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:08:36,297 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 03:08:36,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 03:08:36,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 03:08:36,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 03:08:36,298 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:08:36,299 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:08:36,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:08:36 BasicIcfg [2021-06-05 03:08:36,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:08:36,301 INFO L168 Benchmark]: Toolchain (without parser) took 939.83 ms. Allocated memory is still 343.9 MB. Free memory was 305.7 MB in the beginning and 277.1 MB in the end (delta: 28.5 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:36,302 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 343.9 MB. Free memory was 323.8 MB in the beginning and 323.7 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:08:36,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 126.54 ms. Allocated memory is still 343.9 MB. Free memory was 305.5 MB in the beginning and 322.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:36,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.69 ms. Allocated memory is still 343.9 MB. Free memory was 322.3 MB in the beginning and 327.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:36,303 INFO L168 Benchmark]: Boogie Preprocessor took 16.65 ms. Allocated memory is still 343.9 MB. Free memory was 327.5 MB in the beginning and 326.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:08:36,303 INFO L168 Benchmark]: RCFGBuilder took 288.68 ms. Allocated memory is still 343.9 MB. Free memory was 326.4 MB in the beginning and 310.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:36,304 INFO L168 Benchmark]: TraceAbstraction took 450.91 ms. Allocated memory is still 343.9 MB. Free memory was 309.6 MB in the beginning and 277.1 MB in the end (delta: 32.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-06-05 03:08:36,305 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 343.9 MB. Free memory was 323.8 MB in the beginning and 323.7 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 126.54 ms. Allocated memory is still 343.9 MB. Free memory was 305.5 MB in the beginning and 322.3 MB in the end (delta: -16.8 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.69 ms. Allocated memory is still 343.9 MB. Free memory was 322.3 MB in the beginning and 327.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.65 ms. Allocated memory is still 343.9 MB. Free memory was 327.5 MB in the beginning and 326.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 288.68 ms. Allocated memory is still 343.9 MB. Free memory was 326.4 MB in the beginning and 310.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 450.91 ms. Allocated memory is still 343.9 MB. Free memory was 309.6 MB in the beginning and 277.1 MB in the end (delta: 32.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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, 31 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 367.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 13.1ms, AutomataDifference: 68.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 19 SDslu, 31 SDs, 0 SdLazy, 8 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 21.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.2ms SsaConstructionTime, 21.9ms SatisfiabilityAnalysisTime, 114.0ms InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...