/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 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:39:28,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:39:28,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:39:28,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:39:28,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:39:28,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:39:28,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:39:28,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:39:28,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:39:28,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:39:28,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:39:28,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:39:28,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:39:28,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:39:28,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:39:28,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:39:28,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:39:28,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:39:28,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:39:28,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:39:28,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:39:28,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:39:28,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:39:28,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:39:28,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:39:28,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:39:28,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:39:28,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:39:28,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:39:28,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:39:28,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:39:28,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:39:28,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:39:28,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:39:28,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:39:28,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:39:28,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:39:28,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:39:28,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:39:28,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:39:28,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:39:28,840 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:39:28,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:39:28,841 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:39:28,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:39:28,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:39:28,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:39:28,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:39:28,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:39:28,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:39:28,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:39:28,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:39:28,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:39:28,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:39:28,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:39:28,845 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:39:28,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:39:28,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:39:28,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:39:28,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:39:28,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:39:28,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:39:28,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:39:28,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:39:28,847 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:39:28,847 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:39:28,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:39:28,847 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:39:29,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:39:29,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:39:29,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:39:29,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:39:29,269 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:39:29,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-04-29 03:39:29,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/131dc1396/b90f56c90b604ad3841e76410d42c00e/FLAGd6d692112 [2021-04-29 03:39:30,131 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:39:30,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14a-subsequent-blocks.c [2021-04-29 03:39:30,132 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:39:30,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/131dc1396/b90f56c90b604ad3841e76410d42c00e/FLAGd6d692112 [2021-04-29 03:39:30,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/131dc1396/b90f56c90b604ad3841e76410d42c00e [2021-04-29 03:39:30,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:39:30,551 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:39:30,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:39:30,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:39:30,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:39:30,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee838cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30, skipping insertion in model container [2021-04-29 03:39:30,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:39:30,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:39:30,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:39:30,766 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:39:30,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:39:30,808 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:39:30,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30 WrapperNode [2021-04-29 03:39:30,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:39:30,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:30,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:39:30,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:39:30,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:39:30,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:39:30,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:39:30,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:39:30,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... [2021-04-29 03:39:30,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:39:30,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:39:30,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:39:30,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:39:30,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:39:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 03:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 03:39:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-04-29 03:39:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-04-29 03:39:31,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:39:31,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:39:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:39:31,005 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:39:31,269 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:39:31,270 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:39:31,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:31 BoogieIcfgContainer [2021-04-29 03:39:31,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:39:31,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:39:31,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:39:31,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:39:31,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:39:30" (1/3) ... [2021-04-29 03:39:31,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ea1039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:31, skipping insertion in model container [2021-04-29 03:39:31,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:39:30" (2/3) ... [2021-04-29 03:39:31,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ea1039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:39:31, skipping insertion in model container [2021-04-29 03:39:31,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:39:31" (3/3) ... [2021-04-29 03:39:31,284 INFO L111 eAbstractionObserver]: Analyzing ICFG 14a-subsequent-blocks.c [2021-04-29 03:39:31,292 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:39:31,298 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:39:31,299 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:39:31,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,330 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,330 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,331 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,331 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,331 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,332 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,332 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,333 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,333 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,333 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,334 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,337 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,337 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,337 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,338 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:39:31,341 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 03:39:31,384 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 03:39:31,413 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:39:31,413 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:39:31,440 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:39:31,440 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:39:31,440 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:39:31,441 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:39:31,441 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:39:31,441 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:39:31,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:39:31,519 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 03:39:31,519 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:31,521 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. [2021-04-29 03:39:31,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 51 flow [2021-04-29 03:39:31,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:31,528 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:31,545 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:31,550 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:31,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 19 transitions, 41 flow [2021-04-29 03:39:31,560 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 03:39:31,561 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:31,561 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. [2021-04-29 03:39:31,567 INFO L146 LiptonReduction]: Number of co-enabled transitions 42 [2021-04-29 03:39:32,676 INFO L158 LiptonReduction]: Checked pairs total: 48 [2021-04-29 03:39:32,676 INFO L160 LiptonReduction]: Total number of compositions: 24 [2021-04-29 03:39:32,680 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1153 [2021-04-29 03:39:32,692 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 03:39:32,693 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:32,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:39:32,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 03:39:32,694 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:39:32,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:39:32,701 INFO L82 PathProgramCache]: Analyzing trace with hash 109472, now seen corresponding path program 1 times [2021-04-29 03:39:32,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:39:32,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105118969] [2021-04-29 03:39:32,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:39:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:39:32,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:39:32,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:39:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:39:32,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105118969] [2021-04-29 03:39:32,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:39:32,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 03:39:32,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747766101] [2021-04-29 03:39:32,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-29 03:39:32,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:39:32,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-29 03:39:32,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-29 03:39:32,893 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 47 [2021-04-29 03:39:32,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:32,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:39:32,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 47 [2021-04-29 03:39:32,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:39:32,906 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 03:39:32,907 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:32,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 62 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. [2021-04-29 03:39:32,908 INFO L132 encePairwiseOnDemand]: 46/47 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-04-29 03:39:32,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 41 flow [2021-04-29 03:39:32,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-29 03:39:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-04-29 03:39:32,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 91 transitions. [2021-04-29 03:39:32,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9680851063829787 [2021-04-29 03:39:32,924 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 91 transitions. [2021-04-29 03:39:32,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 91 transitions. [2021-04-29 03:39:32,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:39:32,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 91 transitions. [2021-04-29 03:39:32,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:32,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:32,937 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:32,940 INFO L185 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 2 states and 91 transitions. [2021-04-29 03:39:32,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 41 flow [2021-04-29 03:39:32,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 40 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:39:32,945 INFO L241 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2021-04-29 03:39:32,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2021-04-29 03:39:32,949 INFO L343 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2021-04-29 03:39:32,949 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:39:32,950 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-29 03:39:32,950 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-29 03:39:32,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:39:32,951 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:39:32,951 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:39:32,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:39:32,951 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:39:32,952 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:39:32,952 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:39:32,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 03:39:32,954 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:39:32,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 45.5) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:39:32,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:39:32,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:39:32 BasicIcfg [2021-04-29 03:39:32,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:39:32,962 INFO L168 Benchmark]: Toolchain (without parser) took 2449.06 ms. Allocated memory is still 302.0 MB. Free memory was 277.5 MB in the beginning and 146.7 MB in the end (delta: 130.8 MB). Peak memory consumption was 130.9 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:32,963 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:32,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.02 ms. Allocated memory is still 302.0 MB. Free memory was 274.3 MB in the beginning and 265.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:32,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.81 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 264.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:39:32,966 INFO L168 Benchmark]: Boogie Preprocessor took 22.51 ms. Allocated memory is still 302.0 MB. Free memory was 264.4 MB in the beginning and 263.6 MB in the end (delta: 808.9 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:32,967 INFO L168 Benchmark]: RCFGBuilder took 398.35 ms. Allocated memory is still 302.0 MB. Free memory was 263.6 MB in the beginning and 251.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:32,968 INFO L168 Benchmark]: TraceAbstraction took 1685.43 ms. Allocated memory is still 302.0 MB. Free memory was 250.7 MB in the beginning and 146.7 MB in the end (delta: 104.0 MB). Peak memory consumption was 103.7 MB. Max. memory is 16.0 GB. [2021-04-29 03:39:32,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 258.02 ms. Allocated memory is still 302.0 MB. Free memory was 274.3 MB in the beginning and 265.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.81 ms. Allocated memory is still 302.0 MB. Free memory was 265.9 MB in the beginning and 264.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.51 ms. Allocated memory is still 302.0 MB. Free memory was 264.4 MB in the beginning and 263.6 MB in the end (delta: 808.9 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 398.35 ms. Allocated memory is still 302.0 MB. Free memory was 263.6 MB in the beginning and 251.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1685.43 ms. Allocated memory is still 302.0 MB. Free memory was 250.7 MB in the beginning and 146.7 MB in the end (delta: 104.0 MB). Peak memory consumption was 103.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1127.0ms, 23 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 20 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 24 TotalNumberOfCompositions, 48 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 48, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 32, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 32, Positive conditional cache size: 32, 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: 1.8ms, 23 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): 32, Positive cache size: 32, Positive conditional cache size: 32, 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: 4.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1548.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 63.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1246.8ms, 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=43occurred 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: 5.5ms SsaConstructionTime, 19.3ms SatisfiabilityAnalysisTime, 40.5ms 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...