/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-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:39:35,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:39:35,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:39:35,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:39:35,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:39:35,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:39:35,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:39:35,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:39:35,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:39:35,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:39:35,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:39:35,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:39:35,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:39:35,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:39:35,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:39:35,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:39:35,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:39:35,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:39:35,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:39:35,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:39:35,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:39:35,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:39:35,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:39:35,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:39:35,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:39:35,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:39:35,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:39:35,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:39:35,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:39:35,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:39:35,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:39:35,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:39:35,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:39:35,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:39:35,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:39:35,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:39:35,920 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:39:35,977 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:39:35,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:39:35,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:39:35,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:39:35,982 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:39:35,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:39:35,983 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:39:35,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:39:35,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:39:35,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:39:35,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:39:35,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:39:35,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:39:35,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:39:35,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:39:35,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:39:35,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:39:35,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:39:35,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:39:35,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:39:35,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:39:35,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:39:35,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:39:35,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:39:35,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:39:35,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:39:35,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:39:35,989 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:39:35,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:39:35,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:39:35,990 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:39:36,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:39:36,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:39:36,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:39:36,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:39:36,447 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:39:36,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c [2021-04-29 03:39:36,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10744870b/f89d5199feec49fea486a85cc7be796c/FLAGdf8e376cd [2021-04-29 03:39:37,230 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:39:37,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c [2021-04-29 03:39:37,231 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:39:37,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10744870b/f89d5199feec49fea486a85cc7be796c/FLAGdf8e376cd [2021-04-29 03:39:37,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10744870b/f89d5199feec49fea486a85cc7be796c [2021-04-29 03:39:37,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:39:37,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:39:37,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:39:37,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:39:37,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:39:37,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1822d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37, skipping insertion in model container [2021-04-29 03:39:37,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:39:37,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:39:37,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:39:37,855 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:39:37,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:39:37,884 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:39:37,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37 WrapperNode [2021-04-29 03:39:37,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:39:37,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:37,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:39:37,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:39:37,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:37,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:39:37,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:39:37,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:39:37,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (1/1) ... [2021-04-29 03:39:37,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:39:37,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:39:37,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:39:37,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:39:37,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (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 [2021-04-29 03:39:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:39:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 03:39:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 03:39:38,059 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:39:38,059 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:39:38,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:39:38,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:39:38,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:39:38,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:39:38,064 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:39:38,340 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:39:38,341 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:39:38,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:38 BoogieIcfgContainer [2021-04-29 03:39:38,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:39:38,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:39:38,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:39:38,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:39:38,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:39:37" (1/3) ... [2021-04-29 03:39:38,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cbaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:38, skipping insertion in model container [2021-04-29 03:39:38,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:37" (2/3) ... [2021-04-29 03:39:38,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cbaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:38, skipping insertion in model container [2021-04-29 03:39:38,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:38" (3/3) ... [2021-04-29 03:39:38,354 INFO L111 eAbstractionObserver]: Analyzing ICFG 15-goto-within.c [2021-04-29 03:39:38,378 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:39:38,388 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:39:38,392 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:39:38,452 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,453 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,453 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,453 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,454 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,457 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,457 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,458 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,459 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,467 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,468 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,468 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,468 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:38,474 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:39:38,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 03:39:38,592 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:39:38,593 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:39:38,596 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:39:38,596 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:39:38,596 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:39:38,597 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:39:38,597 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:39:38,597 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:39:38,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-04-29 03:39:38,699 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-04-29 03:39:38,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:38,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:38,710 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-04-29 03:39:38,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-04-29 03:39:38,723 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:38,742 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 18 transitions, 39 flow [2021-04-29 03:39:38,750 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 18 transitions, 39 flow [2021-04-29 03:39:38,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 39 flow [2021-04-29 03:39:38,773 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-04-29 03:39:38,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:38,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 03:39:38,778 INFO L146 LiptonReduction]: Number of co-enabled transitions 24 [2021-04-29 03:39:40,687 INFO L158 LiptonReduction]: Checked pairs total: 22 [2021-04-29 03:39:40,687 INFO L160 LiptonReduction]: Total number of compositions: 27 [2021-04-29 03:39:40,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1971 [2021-04-29 03:39:40,716 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 03:39:40,716 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:40,716 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:39:40,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:39:40,718 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:39:40,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:39:40,727 INFO L82 PathProgramCache]: Analyzing trace with hash 113463, now seen corresponding path program 1 times [2021-04-29 03:39:40,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:39:40,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325572533] [2021-04-29 03:39:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:39:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:39:40,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:39:40,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:39:40,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:39:40,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325572533] [2021-04-29 03:39:40,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:39:40,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:39:40,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860286116] [2021-04-29 03:39:40,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:39:40,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:39:40,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:39:40,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:39:40,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 49 [2021-04-29 03:39:40,928 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-04-29 03:39:40,928 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:39:40,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 49 [2021-04-29 03:39:40,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:39:40,965 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 03:39:40,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:40,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 60 event pairs, 0 based on Foata normal form. 6/12 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-04-29 03:39:40,967 INFO L132 encePairwiseOnDemand]: 42/49 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-04-29 03:39:40,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 19 transitions, 63 flow [2021-04-29 03:39:40,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:39:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:39:40,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2021-04-29 03:39:40,983 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2021-04-29 03:39:40,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 90 transitions. [2021-04-29 03:39:40,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 90 transitions. [2021-04-29 03:39:40,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:39:40,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 90 transitions. [2021-04-29 03:39:40,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-04-29 03:39:41,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2021-04-29 03:39:41,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2021-04-29 03:39:41,010 INFO L185 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 90 transitions. [2021-04-29 03:39:41,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 19 transitions, 63 flow [2021-04-29 03:39:41,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 19 transitions, 62 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:39:41,018 INFO L241 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2021-04-29 03:39:41,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2021-04-29 03:39:41,022 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2021-04-29 03:39:41,022 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:41,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 0 transitions, 0 flow [2021-04-29 03:39:41,023 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 0 transitions, 0 flow [2021-04-29 03:39:41,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:39:41,024 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:39:41,024 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:41,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:39:41,024 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:39:41,025 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:39:41,025 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:39:41,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 03:39:41,031 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:39:41,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-04-29 03:39:41,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:39:41,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:39:41 BasicIcfg [2021-04-29 03:39:41,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:39:41,051 INFO L168 Benchmark]: Toolchain (without parser) took 3431.66 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.0 MB in the beginning and 277.9 MB in the end (delta: -908.0 kB). Peak memory consumption was 62.5 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:41,057 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:41,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.16 ms. Allocated memory is still 302.0 MB. Free memory was 273.8 MB in the beginning and 265.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:41,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.07 ms. Allocated memory is still 302.0 MB. Free memory was 265.2 MB in the beginning and 264.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:41,062 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 ms. Allocated memory is still 302.0 MB. Free memory was 264.0 MB in the beginning and 263.0 MB in the end (delta: 914.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:41,062 INFO L168 Benchmark]: RCFGBuilder took 394.79 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 248.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:41,064 INFO L168 Benchmark]: TraceAbstraction took 2702.65 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 248.2 MB in the beginning and 277.9 MB in the end (delta: -29.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:41,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 227.16 ms. Allocated memory is still 302.0 MB. Free memory was 273.8 MB in the beginning and 265.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.07 ms. Allocated memory is still 302.0 MB. Free memory was 265.2 MB in the beginning and 264.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.94 ms. Allocated memory is still 302.0 MB. Free memory was 264.0 MB in the beginning and 263.0 MB in the end (delta: 914.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 394.79 ms. Allocated memory is still 302.0 MB. Free memory was 262.9 MB in the beginning and 248.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2702.65 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 248.2 MB in the beginning and 277.9 MB in the end (delta: -29.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1937.4ms, 22 PlacesBefore, 24 PlacesAfterwards, 18 TransitionsBefore, 20 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 16, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4ms, 24 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 16, Positive conditional cache size: 16, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2483.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 103.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2109.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 21.0ms SatisfiabilityAnalysisTime, 52.5ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...