/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/14a-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 03:21:58,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 03:21:58,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 03:21:58,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 03:21:58,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 03:21:58,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 03:21:58,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 03:21:58,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 03:21:58,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 03:21:58,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 03:21:58,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 03:21:58,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 03:21:58,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 03:21:58,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 03:21:58,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 03:21:58,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 03:21:58,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 03:21:58,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 03:21:58,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 03:21:58,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 03:21:58,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 03:21:58,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 03:21:58,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 03:21:58,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 03:21:58,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 03:21:58,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 03:21:58,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 03:21:58,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 03:21:58,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 03:21:58,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 03:21:58,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 03:21:58,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 03:21:58,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 03:21:58,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 03:21:58,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 03:21:58,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 03:21:58,084 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 [2021-03-26 03:21:58,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 03:21:58,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 03:21:58,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 03:21:58,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 03:21:58,130 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 03:21:58,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 03:21:58,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 03:21:58,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 03:21:58,131 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 03:21:58,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 03:21:58,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 03:21:58,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 03:21:58,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 03:21:58,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 03:21:58,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 03:21:58,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 03:21:58,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 03:21:58,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 03:21:58,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 03:21:58,133 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 03:21:58,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 03:21:58,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 03:21:58,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 03:21:58,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 03:21:58,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 03:21:58,134 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 03:21:58,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 03:21:58,134 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 03:21:58,134 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 03:21:58,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 03:21:58,135 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 03:21:58,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 03:21:58,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 03:21:58,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 03:21:58,486 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 03:21:58,487 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 03:21:58,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-03-26 03:21:58,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81aac9615/448eb5bcb15a4229a6914d581a636e91/FLAG8578db580 [2021-03-26 03:21:59,038 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 03:21:59,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-03-26 03:21:59,039 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-26 03:21:59,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81aac9615/448eb5bcb15a4229a6914d581a636e91/FLAG8578db580 [2021-03-26 03:21:59,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81aac9615/448eb5bcb15a4229a6914d581a636e91 [2021-03-26 03:21:59,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 03:21:59,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 03:21:59,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 03:21:59,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 03:21:59,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 03:21:59,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@393bd45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59, skipping insertion in model container [2021-03-26 03:21:59,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 03:21:59,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 03:21:59,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 03:21:59,675 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 03:21:59,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 03:21:59,703 INFO L208 MainTranslator]: Completed translation [2021-03-26 03:21:59,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59 WrapperNode [2021-03-26 03:21:59,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 03:21:59,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 03:21:59,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 03:21:59,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 03:21:59,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 03:21:59,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 03:21:59,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 03:21:59,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 03:21:59,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (1/1) ... [2021-03-26 03:21:59,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 03:21:59,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 03:21:59,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 03:21:59,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 03:21:59,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (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 [2021-03-26 03:21:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 03:21:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 03:21:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 03:21:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-26 03:21:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-26 03:21:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 03:21:59,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 03:21:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 03:21:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 03:21:59,826 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 03:22:00,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 03:22:00,082 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-26 03:22:00,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:22:00 BoogieIcfgContainer [2021-03-26 03:22:00,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 03:22:00,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 03:22:00,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 03:22:00,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 03:22:00,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 03:21:59" (1/3) ... [2021-03-26 03:22:00,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f799260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:22:00, skipping insertion in model container [2021-03-26 03:22:00,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 03:21:59" (2/3) ... [2021-03-26 03:22:00,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f799260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:22:00, skipping insertion in model container [2021-03-26 03:22:00,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:22:00" (3/3) ... [2021-03-26 03:22:00,089 INFO L111 eAbstractionObserver]: Analyzing ICFG 14a-subsequent-blocks.c [2021-03-26 03:22:00,107 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 03:22:00,110 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 03:22:00,111 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 03:22:00,150 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,150 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,150 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,151 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,151 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,151 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,151 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,151 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,152 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,152 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,152 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,152 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,154 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,154 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,154 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:22:00,167 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 03:22:00,183 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 03:22:00,214 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 03:22:00,214 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 03:22:00,214 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 03:22:00,214 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 03:22:00,214 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 03:22:00,215 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 03:22:00,215 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 03:22:00,215 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 03:22:00,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-03-26 03:22:00,256 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-26 03:22:00,256 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:22:00,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-26 03:22:00,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-03-26 03:22:00,269 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2021-03-26 03:22:00,270 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:22:00,280 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 19 transitions, 41 flow [2021-03-26 03:22:00,283 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 19 transitions, 41 flow [2021-03-26 03:22:00,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 19 transitions, 41 flow [2021-03-26 03:22:00,298 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 03:22:00,298 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:22:00,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-26 03:22:00,301 INFO L142 LiptonReduction]: Number of co-enabled transitions 42 [2021-03-26 03:22:00,754 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 03:22:00,754 INFO L156 LiptonReduction]: Total number of compositions: 14 [2021-03-26 03:22:00,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 487 [2021-03-26 03:22:00,776 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-26 03:22:00,776 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:22:00,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:22:00,777 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 03:22:00,777 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:22:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:22:00,781 INFO L82 PathProgramCache]: Analyzing trace with hash 99858, now seen corresponding path program 1 times [2021-03-26 03:22:00,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:22:00,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305892316] [2021-03-26 03:22:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:22:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:22:00,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:22:00,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:22:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:22:00,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305892316] [2021-03-26 03:22:00,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:22:00,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 03:22:00,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982686699] [2021-03-26 03:22:00,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-26 03:22:00,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:22:00,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-26 03:22:00,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-26 03:22:00,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 37 [2021-03-26 03:22:00,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 5 transitions, 13 flow. Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 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) [2021-03-26 03:22:00,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:22:00,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 37 [2021-03-26 03:22:00,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:22:00,942 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-03-26 03:22:00,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:22:00,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9 conditions, 4 events. 0/4 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. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-26 03:22:00,944 INFO L132 encePairwiseOnDemand]: 36/37 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2021-03-26 03:22:00,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 4 transitions, 11 flow [2021-03-26 03:22:00,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-26 03:22:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-26 03:22:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 71 transitions. [2021-03-26 03:22:00,956 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9594594594594594 [2021-03-26 03:22:00,956 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 71 transitions. [2021-03-26 03:22:00,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 71 transitions. [2021-03-26 03:22:00,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:22:00,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 71 transitions. [2021-03-26 03:22:00,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 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) [2021-03-26 03:22:00,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-03-26 03:22:00,967 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-03-26 03:22:00,969 INFO L185 Difference]: Start difference. First operand has 9 places, 5 transitions, 13 flow. Second operand 2 states and 71 transitions. [2021-03-26 03:22:00,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 4 transitions, 11 flow [2021-03-26 03:22:00,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 4 transitions, 10 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 03:22:00,973 INFO L241 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2021-03-26 03:22:00,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=10, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2021-03-26 03:22:00,975 INFO L343 CegarLoopForPetriNet]: 9 programPoint places, -1 predicate places. [2021-03-26 03:22:00,975 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:22:00,975 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 8 places, 0 transitions, 0 flow [2021-03-26 03:22:00,976 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 8 places, 0 transitions, 0 flow [2021-03-26 03:22:00,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 03:22:00,977 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 03:22:00,977 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 03:22:00,977 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. [2021-03-26 03:22:00,977 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 03:22:00,977 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:22:00,977 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:22:00,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 03:22:00,980 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 03:22:00,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 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) [2021-03-26 03:22:00,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 03:22:00,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:22:00 BasicIcfg [2021-03-26 03:22:00,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 03:22:00,991 INFO L168 Benchmark]: Toolchain (without parser) took 1449.60 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 234.5 MB in the beginning and 333.2 MB in the end (delta: -98.6 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.0 GB. [2021-03-26 03:22:00,996 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:22:00,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.77 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 233.9 MB in the beginning and 374.3 MB in the end (delta: -140.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.0 GB. [2021-03-26 03:22:00,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.19 ms. Allocated memory is still 390.1 MB. Free memory was 374.3 MB in the beginning and 372.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:22:00,999 INFO L168 Benchmark]: Boogie Preprocessor took 13.88 ms. Allocated memory is still 390.1 MB. Free memory was 372.6 MB in the beginning and 371.9 MB in the end (delta: 706.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:22:01,004 INFO L168 Benchmark]: RCFGBuilder took 323.90 ms. Allocated memory is still 390.1 MB. Free memory was 371.7 MB in the beginning and 359.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-26 03:22:01,006 INFO L168 Benchmark]: TraceAbstraction took 903.94 ms. Allocated memory is still 390.1 MB. Free memory was 358.7 MB in the beginning and 333.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.0 GB. [2021-03-26 03:22:01,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 163.77 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 233.9 MB in the beginning and 374.3 MB in the end (delta: -140.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.19 ms. Allocated memory is still 390.1 MB. Free memory was 374.3 MB in the beginning and 372.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.88 ms. Allocated memory is still 390.1 MB. Free memory was 372.6 MB in the beginning and 371.9 MB in the end (delta: 706.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 323.90 ms. Allocated memory is still 390.1 MB. Free memory was 371.7 MB in the beginning and 359.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 903.94 ms. Allocated memory is still 390.1 MB. Free memory was 358.7 MB in the beginning and 333.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 471.1ms, 23 PlacesBefore, 9 PlacesAfterwards, 19 TransitionsBefore, 5 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 24, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 21, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 24, unknown conditional: 24, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 8 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: 19]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 774.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 47.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 558.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, 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: 7.6ms SsaConstructionTime, 18.9ms SatisfiabilityAnalysisTime, 33.8ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 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...