/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 14:22:28,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 14:22:28,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 14:22:28,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 14:22:28,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 14:22:28,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 14:22:28,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 14:22:28,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 14:22:28,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 14:22:28,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 14:22:28,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 14:22:28,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 14:22:28,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 14:22:28,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 14:22:28,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 14:22:28,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 14:22:28,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 14:22:28,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 14:22:28,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 14:22:28,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 14:22:28,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 14:22:28,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 14:22:28,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 14:22:28,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 14:22:28,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 14:22:28,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 14:22:28,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 14:22:28,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 14:22:28,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 14:22:28,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 14:22:28,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 14:22:28,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 14:22:28,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 14:22:28,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 14:22:28,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 14:22:28,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 14:22:28,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 14:22:28,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 14:22:28,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 14:22:28,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 14:22:29,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 14:22:29,004 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-NoLbe.epf [2021-06-10 14:22:29,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 14:22:29,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 14:22:29,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 14:22:29,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 14:22:29,040 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 14:22:29,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 14:22:29,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 14:22:29,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 14:22:29,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 14:22:29,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 14:22:29,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 14:22:29,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 14:22:29,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 14:22:29,042 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 14:22:29,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 14:22:29,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 14:22:29,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 14:22:29,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 14:22:29,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 14:22:29,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 14:22:29,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 14:22:29,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:22:29,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 14:22:29,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 14:22:29,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 14:22:29,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 14:22:29,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 14:22:29,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 14:22:29,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 14:22:29,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 14:22:29,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 14:22:29,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 14:22:29,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 14:22:29,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 14:22:29,419 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 14:22:29,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-06-10 14:22:29,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122d21e91/d7999da755e5488ba67dd3d154dcbab0/FLAG8a25fc0e9 [2021-06-10 14:22:29,893 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 14:22:29,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11c-double-end.c [2021-06-10 14:22:29,893 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-10 14:22:29,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122d21e91/d7999da755e5488ba67dd3d154dcbab0/FLAG8a25fc0e9 [2021-06-10 14:22:29,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/122d21e91/d7999da755e5488ba67dd3d154dcbab0 [2021-06-10 14:22:29,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 14:22:29,947 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 14:22:29,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 14:22:29,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 14:22:29,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 14:22:29,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:22:29" (1/1) ... [2021-06-10 14:22:29,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c56a3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:29, skipping insertion in model container [2021-06-10 14:22:29,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 02:22:29" (1/1) ... [2021-06-10 14:22:29,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 14:22:29,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 14:22:30,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:22:30,165 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 14:22:30,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 14:22:30,188 INFO L208 MainTranslator]: Completed translation [2021-06-10 14:22:30,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30 WrapperNode [2021-06-10 14:22:30,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 14:22:30,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 14:22:30,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 14:22:30,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 14:22:30,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 14:22:30,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 14:22:30,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 14:22:30,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 14:22:30,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (1/1) ... [2021-06-10 14:22:30,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 14:22:30,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 14:22:30,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 14:22:30,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 14:22:30,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (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 [2021-06-10 14:22:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 14:22:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 14:22:30,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 14:22:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-10 14:22:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-10 14:22:30,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 14:22:30,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 14:22:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 14:22:30,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 14:22:30,312 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 14:22:30,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 14:22:30,505 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-10 14:22:30,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:22:30 BoogieIcfgContainer [2021-06-10 14:22:30,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 14:22:30,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 14:22:30,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 14:22:30,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 14:22:30,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 02:22:29" (1/3) ... [2021-06-10 14:22:30,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff5516e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:22:30, skipping insertion in model container [2021-06-10 14:22:30,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 02:22:30" (2/3) ... [2021-06-10 14:22:30,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff5516e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:22:30, skipping insertion in model container [2021-06-10 14:22:30,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:22:30" (3/3) ... [2021-06-10 14:22:30,513 INFO L111 eAbstractionObserver]: Analyzing ICFG 11c-double-end.c [2021-06-10 14:22:30,518 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 14:22:30,521 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 14:22:30,522 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 14:22:30,538 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,539 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,539 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,540 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,540 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,540 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,540 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,540 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,542 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,542 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,543 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,543 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:22:30,545 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 14:22:30,561 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-10 14:22:30,578 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 14:22:30,578 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 14:22:30,578 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 14:22:30,578 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 14:22:30,578 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 14:22:30,578 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 14:22:30,579 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 14:22:30,579 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 14:22:30,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-06-10 14:22:30,602 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-10 14:22:30,603 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:30,604 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. [2021-06-10 14:22:30,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-06-10 14:22:30,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 16 transitions, 35 flow [2021-06-10 14:22:30,629 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-06-10 14:22:30,629 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:30,629 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:22:30,630 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:22:30,630 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:22:30,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:22:30,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1074065135, now seen corresponding path program 1 times [2021-06-10 14:22:30,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:22:30,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119172965] [2021-06-10 14:22:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:22:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:22:30,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:30,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:22:30,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:30,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:22:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:22:30,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119172965] [2021-06-10 14:22:30,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:22:30,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 14:22:30,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881194291] [2021-06-10 14:22:30,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 14:22:30,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:22:30,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 14:22:30,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 14:22:30,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 22 [2021-06-10 14:22:30,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-06-10 14:22:30,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:22:30,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 22 [2021-06-10 14:22:30,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:22:30,915 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-10 14:22:30,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:22:30,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-06-10 14:22:30,917 INFO L132 encePairwiseOnDemand]: 19/22 looper letters, 2 selfloop transitions, 2 changer transitions 1/17 dead transitions. [2021-06-10 14:22:30,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 47 flow [2021-06-10 14:22:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 14:22:30,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 14:22:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2021-06-10 14:22:30,926 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8636363636363636 [2021-06-10 14:22:30,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 57 transitions. [2021-06-10 14:22:30,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 57 transitions. [2021-06-10 14:22:30,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:22:30,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 57 transitions. [2021-06-10 14:22:30,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2021-06-10 14:22:30,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2021-06-10 14:22:30,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2021-06-10 14:22:30,935 INFO L185 Difference]: Start difference. First operand has 20 places, 16 transitions, 35 flow. Second operand 3 states and 57 transitions. [2021-06-10 14:22:30,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 47 flow [2021-06-10 14:22:30,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 14:22:30,939 INFO L241 Difference]: Finished difference. Result has 22 places, 16 transitions, 42 flow [2021-06-10 14:22:30,941 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2021-06-10 14:22:30,941 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2021-06-10 14:22:30,941 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 42 flow [2021-06-10 14:22:30,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-06-10 14:22:30,942 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 14:22:30,942 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 14:22:30,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 14:22:30,942 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-10 14:22:30,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 14:22:30,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1384461518, now seen corresponding path program 1 times [2021-06-10 14:22:30,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 14:22:30,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380297781] [2021-06-10 14:22:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 14:22:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 14:22:30,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:30,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 14:22:30,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 14:22:30,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 14:22:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 14:22:30,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380297781] [2021-06-10 14:22:30,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 14:22:30,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 14:22:30,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709689304] [2021-06-10 14:22:30,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 14:22:30,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 14:22:30,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 14:22:30,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 14:22:30,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 22 [2021-06-10 14:22:30,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-06-10 14:22:30,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 14:22:30,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 22 [2021-06-10 14:22:30,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 14:22:30,990 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-10 14:22:30,990 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-06-10 14:22:30,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 15 events. 0/15 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-10 14:22:30,991 INFO L132 encePairwiseOnDemand]: 20/22 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-06-10 14:22:30,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 15 transitions, 44 flow [2021-06-10 14:22:30,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 14:22:30,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 14:22:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2021-06-10 14:22:30,992 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-06-10 14:22:30,992 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 55 transitions. [2021-06-10 14:22:30,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 55 transitions. [2021-06-10 14:22:30,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 14:22:30,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 55 transitions. [2021-06-10 14:22:30,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-06-10 14:22:30,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2021-06-10 14:22:30,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2021-06-10 14:22:30,996 INFO L185 Difference]: Start difference. First operand has 22 places, 16 transitions, 42 flow. Second operand 3 states and 55 transitions. [2021-06-10 14:22:30,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 15 transitions, 44 flow [2021-06-10 14:22:30,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 15 transitions, 40 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 14:22:30,997 INFO L241 Difference]: Finished difference. Result has 21 places, 0 transitions, 0 flow [2021-06-10 14:22:30,997 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=21, PETRI_TRANSITIONS=0} [2021-06-10 14:22:30,998 INFO L343 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2021-06-10 14:22:30,998 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 0 transitions, 0 flow [2021-06-10 14:22:30,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-06-10 14:22:30,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 14:22:31,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 02:22:31 BasicIcfg [2021-06-10 14:22:31,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 14:22:31,003 INFO L168 Benchmark]: Toolchain (without parser) took 1055.73 ms. Allocated memory is still 383.8 MB. Free memory was 345.8 MB in the beginning and 321.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:31,004 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 383.8 MB. Free memory was 364.2 MB in the beginning and 364.1 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:22:31,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.93 ms. Allocated memory is still 383.8 MB. Free memory was 345.5 MB in the beginning and 365.8 MB in the end (delta: -20.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:31,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.37 ms. Allocated memory is still 383.8 MB. Free memory was 365.8 MB in the beginning and 364.9 MB in the end (delta: 896.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:22:31,005 INFO L168 Benchmark]: Boogie Preprocessor took 20.48 ms. Allocated memory is still 383.8 MB. Free memory was 364.9 MB in the beginning and 363.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:31,006 INFO L168 Benchmark]: RCFGBuilder took 265.81 ms. Allocated memory is still 383.8 MB. Free memory was 363.7 MB in the beginning and 350.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:31,006 INFO L168 Benchmark]: TraceAbstraction took 494.24 ms. Allocated memory is still 383.8 MB. Free memory was 350.2 MB in the beginning and 321.8 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-10 14:22:31,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 383.8 MB. Free memory was 364.2 MB in the beginning and 364.1 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 239.93 ms. Allocated memory is still 383.8 MB. Free memory was 345.5 MB in the beginning and 365.8 MB in the end (delta: -20.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.37 ms. Allocated memory is still 383.8 MB. Free memory was 365.8 MB in the beginning and 364.9 MB in the end (delta: 896.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.48 ms. Allocated memory is still 383.8 MB. Free memory was 364.9 MB in the beginning and 363.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 265.81 ms. Allocated memory is still 383.8 MB. Free memory was 363.7 MB in the beginning and 350.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 494.24 ms. Allocated memory is still 383.8 MB. Free memory was 350.2 MB in the beginning and 321.8 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: 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: 5.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 424.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 91.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 45.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=1, InterpolantAutomatonStates: 6, 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: 12.5ms SsaConstructionTime, 27.8ms SatisfiabilityAnalysisTime, 90.7ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...