/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 08:16:46,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 08:16:46,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 08:16:46,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 08:16:46,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 08:16:46,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 08:16:46,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 08:16:46,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 08:16:46,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 08:16:46,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 08:16:46,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 08:16:46,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 08:16:46,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 08:16:46,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 08:16:46,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 08:16:46,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 08:16:46,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 08:16:46,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 08:16:46,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 08:16:46,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 08:16:46,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 08:16:46,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 08:16:46,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 08:16:46,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 08:16:46,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 08:16:46,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 08:16:46,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 08:16:46,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 08:16:46,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 08:16:46,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 08:16:46,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 08:16:46,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 08:16:46,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 08:16:46,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 08:16:46,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 08:16:46,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 08:16:46,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 08:16:46,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 08:16:46,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 08:16:46,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 08:16:46,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 08:16:46,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-13 08:16:46,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 08:16:46,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 08:16:46,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 08:16:46,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 08:16:46,879 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 08:16:46,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 08:16:46,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 08:16:46,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 08:16:46,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 08:16:46,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 08:16:46,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 08:16:46,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 08:16:46,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 08:16:46,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 08:16:46,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 08:16:46,881 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 08:16:46,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 08:16:46,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 08:16:46,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 08:16:46,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 08:16:46,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 08:16:46,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 08:16:46,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 08:16:46,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 08:16:47,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 08:16:47,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 08:16:47,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 08:16:47,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 08:16:47,213 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 08:16:47,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-06-13 08:16:47,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729d1983b/20a2761ef2634ecab707bffc9dc5392e/FLAGe9a42377d [2021-06-13 08:16:47,694 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 08:16:47,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-06-13 08:16:47,694 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-13 08:16:47,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729d1983b/20a2761ef2634ecab707bffc9dc5392e/FLAGe9a42377d [2021-06-13 08:16:48,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/729d1983b/20a2761ef2634ecab707bffc9dc5392e [2021-06-13 08:16:48,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 08:16:48,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 08:16:48,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 08:16:48,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 08:16:48,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 08:16:48,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566ca1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48, skipping insertion in model container [2021-06-13 08:16:48,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 08:16:48,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 08:16:48,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 08:16:48,283 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 08:16:48,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 08:16:48,303 INFO L208 MainTranslator]: Completed translation [2021-06-13 08:16:48,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48 WrapperNode [2021-06-13 08:16:48,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 08:16:48,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 08:16:48,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 08:16:48,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 08:16:48,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 08:16:48,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 08:16:48,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 08:16:48,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 08:16:48,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (1/1) ... [2021-06-13 08:16:48,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 08:16:48,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 08:16:48,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 08:16:48,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 08:16:48,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (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 [2021-06-13 08:16:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 08:16:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 08:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 08:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-13 08:16:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-13 08:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 08:16:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 08:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 08:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 08:16:48,405 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 08:16:48,610 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 08:16:48,610 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-13 08:16:48,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:16:48 BoogieIcfgContainer [2021-06-13 08:16:48,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 08:16:48,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 08:16:48,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 08:16:48,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 08:16:48,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 08:16:48" (1/3) ... [2021-06-13 08:16:48,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e7c47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:16:48, skipping insertion in model container [2021-06-13 08:16:48,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:16:48" (2/3) ... [2021-06-13 08:16:48,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e7c47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:16:48, skipping insertion in model container [2021-06-13 08:16:48,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:16:48" (3/3) ... [2021-06-13 08:16:48,619 INFO L111 eAbstractionObserver]: Analyzing ICFG 14a-subsequent-blocks.c [2021-06-13 08:16:48,624 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 08:16:48,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 08:16:48,625 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 08:16:48,641 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,642 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,642 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,642 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,642 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,643 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,643 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,643 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,643 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,644 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,644 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,644 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,646 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,646 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,646 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,646 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:16:48,648 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 08:16:48,667 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:16:48,685 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:16:48,685 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:16:48,685 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:16:48,686 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:16:48,686 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:16:48,686 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:16:48,686 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:16:48,686 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == fooThread1of1ForFork0======== [2021-06-13 08:16:48,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 57 flow [2021-06-13 08:16:48,713 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-06-13 08:16:48,713 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,714 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-13 08:16:48,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 57 flow [2021-06-13 08:16:48,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 47 flow [2021-06-13 08:16:48,723 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-13 08:16:48,724 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,724 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:16:48,724 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 08:16:48,725 INFO L430 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:16:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:16:48,729 INFO L82 PathProgramCache]: Analyzing trace with hash 978594176, now seen corresponding path program 1 times [2021-06-13 08:16:48,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:16:48,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079356964] [2021-06-13 08:16:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:16:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 08:16:48,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:16:48,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 08:16:48,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 08:16:48,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 08:16:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 08:16:48,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 08:16:48,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079356964] [2021-06-13 08:16:48,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079356964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 08:16:48,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 08:16:48,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 08:16:48,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229989950] [2021-06-13 08:16:48,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 08:16:48,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 08:16:48,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 08:16:48,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 08:16:48,897 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 26 [2021-06-13 08:16:48,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-06-13 08:16:48,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 08:16:48,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 26 [2021-06-13 08:16:48,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 08:16:48,921 INFO L129 PetriNetUnfolder]: 2/29 cut-off events. [2021-06-13 08:16:48,921 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 2/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 2 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 25. Up to 8 conditions per place. [2021-06-13 08:16:48,923 INFO L132 encePairwiseOnDemand]: 24/26 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2021-06-13 08:16:48,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 53 flow [2021-06-13 08:16:48,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 08:16:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 08:16:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2021-06-13 08:16:48,932 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-06-13 08:16:48,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 65 transitions. [2021-06-13 08:16:48,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 65 transitions. [2021-06-13 08:16:48,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 08:16:48,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 65 transitions. [2021-06-13 08:16:48,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-13 08:16:48,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:16:48,940 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 08:16:48,942 INFO L185 Difference]: Start difference. First operand has 26 places, 22 transitions, 47 flow. Second operand 3 states and 65 transitions. [2021-06-13 08:16:48,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 53 flow [2021-06-13 08:16:48,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 52 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 08:16:48,946 INFO L241 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2021-06-13 08:16:48,947 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2021-06-13 08:16:48,948 INFO L335 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-13 08:16:48,948 INFO L482 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2021-06-13 08:16:48,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2021-06-13 08:16:48,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 08:16:48,949 INFO L301 ceAbstractionStarter]: Result for error location fooThread1of1ForFork0 was SAFE (1/3) [2021-06-13 08:16:48,951 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:16:48,954 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:16:48,954 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:16:48,954 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:16:48,954 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:16:48,954 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:16:48,954 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:16:48,954 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:16:48,954 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == foo======== [2021-06-13 08:16:48,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 57 flow [2021-06-13 08:16:48,960 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-06-13 08:16:48,961 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-13 08:16:48,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 57 flow [2021-06-13 08:16:48,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 08:16:48,961 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 08:16:48,961 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,962 INFO L301 ceAbstractionStarter]: Result for error location foo was SAFE (2/3) [2021-06-13 08:16:48,963 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:16:48,967 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:16:48,967 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:16:48,970 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:16:48,970 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:16:48,970 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:16:48,970 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:16:48,970 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:16:48,970 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 08:16:48,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 26 transitions, 57 flow [2021-06-13 08:16:48,976 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-06-13 08:16:48,976 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,976 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-13 08:16:48,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 26 transitions, 57 flow [2021-06-13 08:16:48,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 08:16:48,976 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 08:16:48,977 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:16:48,977 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (3/3) [2021-06-13 08:16:48,977 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 08:16:48,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 08:16:48 BasicIcfg [2021-06-13 08:16:48,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 08:16:48,986 INFO L168 Benchmark]: Toolchain (without parser) took 884.66 ms. Allocated memory is still 178.3 MB. Free memory was 140.7 MB in the beginning and 117.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 8.0 GB. [2021-06-13 08:16:48,988 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 178.3 MB. Free memory is still 159.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:16:48,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.30 ms. Allocated memory is still 178.3 MB. Free memory was 140.5 MB in the beginning and 160.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-13 08:16:48,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.09 ms. Allocated memory is still 178.3 MB. Free memory was 160.5 MB in the beginning and 159.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:16:48,990 INFO L168 Benchmark]: Boogie Preprocessor took 12.27 ms. Allocated memory is still 178.3 MB. Free memory was 159.4 MB in the beginning and 158.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:16:48,991 INFO L168 Benchmark]: RCFGBuilder took 271.42 ms. Allocated memory is still 178.3 MB. Free memory was 158.3 MB in the beginning and 144.8 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-13 08:16:48,993 INFO L168 Benchmark]: TraceAbstraction took 366.67 ms. Allocated memory is still 178.3 MB. Free memory was 144.2 MB in the beginning and 117.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-06-13 08:16:48,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 178.3 MB. Free memory is still 159.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 201.30 ms. Allocated memory is still 178.3 MB. Free memory was 140.5 MB in the beginning and 160.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.09 ms. Allocated memory is still 178.3 MB. Free memory was 160.5 MB in the beginning and 159.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.27 ms. Allocated memory is still 178.3 MB. Free memory was 159.4 MB in the beginning and 158.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 271.42 ms. Allocated memory is still 178.3 MB. Free memory was 158.3 MB in the beginning and 144.8 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 366.67 ms. Allocated memory is still 178.3 MB. Free memory was 144.2 MB in the beginning and 117.5 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: fooThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 268.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 56.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 31.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.0ms SsaConstructionTime, 17.1ms SatisfiabilityAnalysisTime, 60.2ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: foo with 1 thread instances CFG has 3 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 8.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 35 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 12.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: 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...