/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 09:15:18,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 09:15:18,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 09:15:19,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 09:15:19,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 09:15:19,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 09:15:19,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 09:15:19,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 09:15:19,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 09:15:19,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 09:15:19,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 09:15:19,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 09:15:19,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 09:15:19,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 09:15:19,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 09:15:19,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 09:15:19,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 09:15:19,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 09:15:19,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 09:15:19,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 09:15:19,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 09:15:19,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 09:15:19,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 09:15:19,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 09:15:19,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 09:15:19,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 09:15:19,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 09:15:19,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 09:15:19,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 09:15:19,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 09:15:19,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 09:15:19,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 09:15:19,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 09:15:19,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 09:15:19,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 09:15:19,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 09:15:19,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 09:15:19,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 09:15:19,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 09:15:19,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 09:15:19,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 09:15:19,054 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 09:15:19,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 09:15:19,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 09:15:19,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 09:15:19,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 09:15:19,098 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 09:15:19,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 09:15:19,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 09:15:19,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 09:15:19,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 09:15:19,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 09:15:19,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 09:15:19,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 09:15:19,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 09:15:19,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 09:15:19,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 09:15:19,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 09:15:19,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 09:15:19,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 09:15:19,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 09:15:19,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 09:15:19,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 09:15:19,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 09:15:19,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 09:15:19,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 09:15:19,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 09:15:19,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 09:15:19,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 09:15:19,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 09:15:19,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 09:15:19,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 09:15:19,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 09:15:19,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 09:15:19,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 09:15:19,477 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 09:15:19,478 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 09:15:19,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c [2021-06-11 09:15:19,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70c4765de/345c670f7f304efcafa9250ff2b66b8b/FLAG7c633ef36 [2021-06-11 09:15:19,964 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 09:15:19,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/15-goto-within.c [2021-06-11 09:15:19,964 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-11 09:15:19,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70c4765de/345c670f7f304efcafa9250ff2b66b8b/FLAG7c633ef36 [2021-06-11 09:15:20,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70c4765de/345c670f7f304efcafa9250ff2b66b8b [2021-06-11 09:15:20,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 09:15:20,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 09:15:20,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 09:15:20,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 09:15:20,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 09:15:20,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496ecd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20, skipping insertion in model container [2021-06-11 09:15:20,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 09:15:20,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 09:15:20,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 09:15:20,550 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 09:15:20,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 09:15:20,578 INFO L208 MainTranslator]: Completed translation [2021-06-11 09:15:20,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20 WrapperNode [2021-06-11 09:15:20,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 09:15:20,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 09:15:20,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 09:15:20,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 09:15:20,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 09:15:20,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 09:15:20,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 09:15:20,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 09:15:20,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... [2021-06-11 09:15:20,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 09:15:20,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 09:15:20,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 09:15:20,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 09:15:20,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 09:15:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 09:15:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 09:15:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 09:15:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-11 09:15:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-11 09:15:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 09:15:20,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 09:15:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 09:15:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 09:15:20,710 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 09:15:20,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 09:15:20,972 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-11 09:15:20,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 09:15:20 BoogieIcfgContainer [2021-06-11 09:15:20,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 09:15:20,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 09:15:20,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 09:15:20,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 09:15:20,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 09:15:20" (1/3) ... [2021-06-11 09:15:20,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf5a18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 09:15:20, skipping insertion in model container [2021-06-11 09:15:20,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 09:15:20" (2/3) ... [2021-06-11 09:15:20,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf5a18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 09:15:20, skipping insertion in model container [2021-06-11 09:15:20,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 09:15:20" (3/3) ... [2021-06-11 09:15:20,979 INFO L111 eAbstractionObserver]: Analyzing ICFG 15-goto-within.c [2021-06-11 09:15:20,984 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 09:15:20,987 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 09:15:20,987 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 09:15:21,003 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,004 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,004 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,004 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,004 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,005 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,005 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,007 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,007 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,007 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,007 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 09:15:21,010 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 09:15:21,026 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 09:15:21,042 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 09:15:21,042 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 09:15:21,043 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 09:15:21,043 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 09:15:21,043 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 09:15:21,043 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 09:15:21,043 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 09:15:21,043 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 09:15:21,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-06-11 09:15:21,069 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-11 09:15:21,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:15:21,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 09:15:21,070 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-06-11 09:15:21,073 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-06-11 09:15:21,075 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:15:21,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 18 transitions, 39 flow [2021-06-11 09:15:21,088 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 18 transitions, 39 flow [2021-06-11 09:15:21,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 39 flow [2021-06-11 09:15:21,109 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-06-11 09:15:21,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:15:21,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 09:15:21,112 INFO L151 LiptonReduction]: Number of co-enabled transitions 24 [2021-06-11 09:15:21,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,750 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:15:21,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:15:21,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 09:15:21,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:15:21,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:15:21,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:21,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:15:21,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 09:15:22,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:22,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 09:15:22,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:22,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 09:15:22,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 09:15:22,055 INFO L163 LiptonReduction]: Checked pairs total: 13 [2021-06-11 09:15:22,055 INFO L165 LiptonReduction]: Total number of compositions: 14 [2021-06-11 09:15:22,057 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 983 [2021-06-11 09:15:22,065 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-06-11 09:15:22,065 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:15:22,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:15:22,066 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-06-11 09:15:22,067 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 09:15:22,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:15:22,071 INFO L82 PathProgramCache]: Analyzing trace with hash 104814, now seen corresponding path program 1 times [2021-06-11 09:15:22,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:15:22,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297097335] [2021-06-11 09:15:22,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:15:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:15:22,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:15:22,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:15:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:15:22,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297097335] [2021-06-11 09:15:22,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:15:22,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 09:15:22,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783659624] [2021-06-11 09:15:22,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:15:22,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:15:22,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:15:22,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:15:22,200 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 36 [2021-06-11 09:15:22,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 places, 4 transitions, 11 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:15:22,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:15:22,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 36 [2021-06-11 09:15:22,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:15:22,218 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-06-11 09:15:22,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:15:22,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 2/5 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-11 09:15:22,220 INFO L132 encePairwiseOnDemand]: 34/36 looper letters, 0 selfloop transitions, 0 changer transitions 3/3 dead transitions. [2021-06-11 09:15:22,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 9 places, 3 transitions, 13 flow [2021-06-11 09:15:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:15:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:15:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2021-06-11 09:15:22,234 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2021-06-11 09:15:22,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 75 transitions. [2021-06-11 09:15:22,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 75 transitions. [2021-06-11 09:15:22,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:15:22,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 75 transitions. [2021-06-11 09:15:22,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:15:22,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:15:22,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:15:22,244 INFO L185 Difference]: Start difference. First operand has 8 places, 4 transitions, 11 flow. Second operand 3 states and 75 transitions. [2021-06-11 09:15:22,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 9 places, 3 transitions, 13 flow [2021-06-11 09:15:22,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 3 transitions, 12 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:15:22,247 INFO L241 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2021-06-11 09:15:22,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2021-06-11 09:15:22,249 INFO L343 CegarLoopForPetriNet]: 8 programPoint places, 0 predicate places. [2021-06-11 09:15:22,249 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:15:22,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 8 places, 0 transitions, 0 flow [2021-06-11 09:15:22,250 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 8 places, 0 transitions, 0 flow [2021-06-11 09:15:22,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 09:15:22,250 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 09:15:22,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:15:22,250 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. [2021-06-11 09:15:22,251 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 09:15:22,251 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:15:22,251 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:15:22,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-06-11 09:15:22,252 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 09:15:22,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 09:15:22,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 09:15:22,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 09:15:22 BasicIcfg [2021-06-11 09:15:22,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 09:15:22,256 INFO L168 Benchmark]: Toolchain (without parser) took 1884.24 ms. Allocated memory is still 348.1 MB. Free memory was 310.4 MB in the beginning and 174.0 MB in the end (delta: 136.5 MB). Peak memory consumption was 135.0 MB. Max. memory is 16.0 GB. [2021-06-11 09:15:22,257 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory was 328.5 MB in the beginning and 328.5 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 09:15:22,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.15 ms. Allocated memory is still 348.1 MB. Free memory was 310.3 MB in the beginning and 332.3 MB in the end (delta: -22.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-11 09:15:22,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.96 ms. Allocated memory is still 348.1 MB. Free memory was 332.3 MB in the beginning and 330.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 09:15:22,258 INFO L168 Benchmark]: Boogie Preprocessor took 20.28 ms. Allocated memory is still 348.1 MB. Free memory was 330.2 MB in the beginning and 330.0 MB in the end (delta: 224.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 09:15:22,258 INFO L168 Benchmark]: RCFGBuilder took 336.59 ms. Allocated memory is still 348.1 MB. Free memory was 329.2 MB in the beginning and 314.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-06-11 09:15:22,259 INFO L168 Benchmark]: TraceAbstraction took 1280.54 ms. Allocated memory is still 348.1 MB. Free memory was 314.5 MB in the beginning and 174.0 MB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 16.0 GB. [2021-06-11 09:15:22,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory was 328.5 MB in the beginning and 328.5 MB in the end (delta: 71.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 214.15 ms. Allocated memory is still 348.1 MB. Free memory was 310.3 MB in the beginning and 332.3 MB in the end (delta: -22.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.96 ms. Allocated memory is still 348.1 MB. Free memory was 332.3 MB in the beginning and 330.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.28 ms. Allocated memory is still 348.1 MB. Free memory was 330.2 MB in the beginning and 330.0 MB in the end (delta: 224.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 336.59 ms. Allocated memory is still 348.1 MB. Free memory was 329.2 MB in the beginning and 314.5 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1280.54 ms. Allocated memory is still 348.1 MB. Free memory was 314.5 MB in the beginning and 174.0 MB in the end (delta: 140.5 MB). Peak memory consumption was 140.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 967.5ms, 22 PlacesBefore, 8 PlacesAfterwards, 18 TransitionsBefore, 4 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 5 FixpointIterations, 8 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 13 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 13, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 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): 20, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1214.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 53.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1020.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.6ms SsaConstructionTime, 13.1ms SatisfiabilityAnalysisTime, 26.7ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...