/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 17:37:44,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 17:37:44,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 17:37:44,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 17:37:44,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 17:37:44,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 17:37:44,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 17:37:44,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 17:37:44,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 17:37:44,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 17:37:44,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 17:37:44,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 17:37:44,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 17:37:44,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 17:37:44,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 17:37:44,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 17:37:44,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 17:37:44,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 17:37:44,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 17:37:44,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 17:37:44,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 17:37:44,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 17:37:44,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 17:37:44,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 17:37:44,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 17:37:44,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 17:37:44,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 17:37:44,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 17:37:44,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 17:37:44,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 17:37:44,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 17:37:44,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 17:37:44,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 17:37:44,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 17:37:44,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 17:37:44,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 17:37:44,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 17:37:44,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 17:37:44,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 17:37:44,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 17:37:44,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 17:37:44,092 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-RepeatedSemanticLbe.epf [2021-03-25 17:37:44,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 17:37:44,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 17:37:44,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 17:37:44,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 17:37:44,113 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 17:37:44,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 17:37:44,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 17:37:44,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 17:37:44,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 17:37:44,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 17:37:44,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 17:37:44,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 17:37:44,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 17:37:44,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 17:37:44,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 17:37:44,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 17:37:44,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 17:37:44,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 17:37:44,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 17:37:44,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 17:37:44,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 17:37:44,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 17:37:44,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 17:37:44,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 17:37:44,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 17:37:44,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 17:37:44,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 17:37:44,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 17:37:44,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 17:37:44,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 17:37:44,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 17:37:44,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 17:37:44,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 17:37:44,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 17:37:44,454 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 17:37:44,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c [2021-03-25 17:37:44,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e5c34c07/269703e9b4514aa899fadd38c257f7ca/FLAG790a8bd1f [2021-03-25 17:37:45,006 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 17:37:45,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c [2021-03-25 17:37:45,007 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-25 17:37:45,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e5c34c07/269703e9b4514aa899fadd38c257f7ca/FLAG790a8bd1f [2021-03-25 17:37:45,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e5c34c07/269703e9b4514aa899fadd38c257f7ca [2021-03-25 17:37:45,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 17:37:45,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 17:37:45,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 17:37:45,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 17:37:45,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 17:37:45,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bf3cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45, skipping insertion in model container [2021-03-25 17:37:45,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 17:37:45,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 17:37:45,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 17:37:45,630 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 17:37:45,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 17:37:45,650 INFO L208 MainTranslator]: Completed translation [2021-03-25 17:37:45,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45 WrapperNode [2021-03-25 17:37:45,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 17:37:45,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 17:37:45,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 17:37:45,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 17:37:45,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 17:37:45,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 17:37:45,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 17:37:45,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 17:37:45,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (1/1) ... [2021-03-25 17:37:45,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 17:37:45,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 17:37:45,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 17:37:45,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 17:37:45,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (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 [2021-03-25 17:37:45,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 17:37:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 17:37:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 17:37:45,812 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-25 17:37:45,812 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-25 17:37:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 17:37:45,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 17:37:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 17:37:45,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 17:37:45,815 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 17:37:46,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 17:37:46,086 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-25 17:37:46,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:37:46 BoogieIcfgContainer [2021-03-25 17:37:46,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 17:37:46,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 17:37:46,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 17:37:46,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 17:37:46,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:37:45" (1/3) ... [2021-03-25 17:37:46,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178fe8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:37:46, skipping insertion in model container [2021-03-25 17:37:46,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:37:45" (2/3) ... [2021-03-25 17:37:46,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178fe8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:37:46, skipping insertion in model container [2021-03-25 17:37:46,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:37:46" (3/3) ... [2021-03-25 17:37:46,094 INFO L111 eAbstractionObserver]: Analyzing ICFG 15-goto-within.c [2021-03-25 17:37:46,099 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 17:37:46,102 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 17:37:46,103 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 17:37:46,119 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,119 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,119 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,119 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,120 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,120 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,120 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,120 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,120 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,121 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,121 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,121 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,123 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,123 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,123 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,123 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 17:37:46,125 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 17:37:46,142 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 17:37:46,160 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 17:37:46,160 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 17:37:46,160 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 17:37:46,160 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 17:37:46,160 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 17:37:46,160 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 17:37:46,161 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 17:37:46,161 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 17:37:46,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-03-25 17:37:46,197 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-25 17:37:46,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 17:37:46,204 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. [2021-03-25 17:37:46,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-03-25 17:37:46,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-03-25 17:37:46,208 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:37:46,222 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 18 transitions, 39 flow [2021-03-25 17:37:46,227 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 18 transitions, 39 flow [2021-03-25 17:37:46,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 39 flow [2021-03-25 17:37:46,240 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 17:37:46,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 17:37:46,241 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. [2021-03-25 17:37:46,243 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-25 17:37:46,774 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-25 17:37:46,774 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-25 17:37:46,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 569 [2021-03-25 17:37:46,783 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-03-25 17:37:46,784 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 17:37:46,784 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 17:37:46,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-25 17:37:46,785 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 17:37:46,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 17:37:46,789 INFO L82 PathProgramCache]: Analyzing trace with hash 92662568, now seen corresponding path program 1 times [2021-03-25 17:37:46,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 17:37:46,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558455093] [2021-03-25 17:37:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 17:37:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 17:37:46,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:37:46,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 17:37:46,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 17:37:46,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 17:37:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 17:37:46,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558455093] [2021-03-25 17:37:46,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 17:37:46,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 17:37:46,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803205008] [2021-03-25 17:37:46,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 17:37:46,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 17:37:46,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 17:37:46,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 17:37:46,927 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 33 [2021-03-25 17:37:46,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 7 transitions, 17 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-03-25 17:37:46,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 17:37:46,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 33 [2021-03-25 17:37:46,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 17:37:46,939 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-25 17:37:46,940 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 17:37:46,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 17:37:46,940 INFO L132 encePairwiseOnDemand]: 31/33 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2021-03-25 17:37:46,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 6 transitions, 19 flow [2021-03-25 17:37:46,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 17:37:46,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 17:37:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2021-03-25 17:37:46,950 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2021-03-25 17:37:46,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 75 transitions. [2021-03-25 17:37:46,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 75 transitions. [2021-03-25 17:37:46,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 17:37:46,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 75 transitions. [2021-03-25 17:37:46,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-03-25 17:37:46,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2021-03-25 17:37:46,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2021-03-25 17:37:46,960 INFO L185 Difference]: Start difference. First operand has 11 places, 7 transitions, 17 flow. Second operand 3 states and 75 transitions. [2021-03-25 17:37:46,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 6 transitions, 19 flow [2021-03-25 17:37:46,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 6 transitions, 18 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 17:37:46,963 INFO L241 Difference]: Finished difference. Result has 11 places, 0 transitions, 0 flow [2021-03-25 17:37:46,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=11, PETRI_TRANSITIONS=0} [2021-03-25 17:37:46,965 INFO L343 CegarLoopForPetriNet]: 11 programPoint places, 0 predicate places. [2021-03-25 17:37:46,966 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 17:37:46,966 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 0 transitions, 0 flow [2021-03-25 17:37:46,966 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 11 places, 0 transitions, 0 flow [2021-03-25 17:37:46,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 17:37:46,967 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 17:37:46,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 17:37:46,967 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. [2021-03-25 17:37:46,967 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 17:37:46,967 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 17:37:46,967 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 17:37:46,967 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 17:37:46,968 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 17:37:46,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-03-25 17:37:46,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 17:37:46,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:37:46 BasicIcfg [2021-03-25 17:37:46,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 17:37:46,974 INFO L168 Benchmark]: Toolchain (without parser) took 1466.57 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 232.8 MB in the beginning and 300.4 MB in the end (delta: -67.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.0 GB. [2021-03-25 17:37:46,974 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 17:37:46,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.69 ms. Allocated memory is still 255.9 MB. Free memory was 232.8 MB in the beginning and 224.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-25 17:37:46,975 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.28 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 224.1 MB in the beginning and 335.7 MB in the end (delta: -111.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 17:37:46,976 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 352.3 MB. Free memory was 335.7 MB in the beginning and 334.7 MB in the end (delta: 985.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 17:37:46,976 INFO L168 Benchmark]: RCFGBuilder took 351.61 ms. Allocated memory is still 352.3 MB. Free memory was 334.7 MB in the beginning and 320.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-25 17:37:46,977 INFO L168 Benchmark]: TraceAbstraction took 882.96 ms. Allocated memory is still 352.3 MB. Free memory was 320.9 MB in the beginning and 300.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. [2021-03-25 17:37:46,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 142.69 ms. Allocated memory is still 255.9 MB. Free memory was 232.8 MB in the beginning and 224.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.28 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 224.1 MB in the beginning and 335.7 MB in the end (delta: -111.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 352.3 MB. Free memory was 335.7 MB in the beginning and 334.7 MB in the end (delta: 985.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 351.61 ms. Allocated memory is still 352.3 MB. Free memory was 334.7 MB in the beginning and 320.9 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 882.96 ms. Allocated memory is still 352.3 MB. Free memory was 320.9 MB in the beginning and 300.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 547.1ms, 22 PlacesBefore, 11 PlacesAfterwards, 18 TransitionsBefore, 7 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, 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: 1.0ms, 11 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): 0, Positive cache size: 0, Positive conditional cache size: 0, 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: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 813.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 42.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 620.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 3.7ms SsaConstructionTime, 13.5ms SatisfiabilityAnalysisTime, 37.3ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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...