/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/07-return-before-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:30:49,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:30:49,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:30:49,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:30:49,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:30:49,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:30:49,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:30:49,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:30:49,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:30:49,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:30:49,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:30:49,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:30:49,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:30:49,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:30:49,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:30:49,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:30:49,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:30:49,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:30:49,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:30:49,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:30:49,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:30:49,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:30:49,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:30:49,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:30:49,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-10 20:30:49,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-10 20:30:49,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-10 20:30:49,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-10 20:30:49,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-10 20:30:49,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-10 20:30:49,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-10 20:30:49,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-10 20:30:49,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-10 20:30:49,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-10 20:30:49,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-10 20:30:49,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-10 20:30:49,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-10 20:30:49,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-10 20:30:49,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:30:49,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:30:49,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:30:49,192 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-FA-NoLbe.epf [2021-03-10 20:30:49,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:30:49,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:30:49,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:30:49,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:30:49,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:30:49,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:30:49,233 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:30:49,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:30:49,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:30:49,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:30:49,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:30:49,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:30:49,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:30:49,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:30:49,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:30:49,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:30:49,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:30:49,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:30:49,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:30:49,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:30:49,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:30:49,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:30:49,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:30:49,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:30:49,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:30:49,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:30:49,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:30:49,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:30:49,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:30:49,586 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 20:30:49,587 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 20:30:49,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/07-return-before-end.c [2021-03-10 20:30:49,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745ad2978/b042b3c3efab445b9600bbffd5b70932/FLAG3fb8cc3d9 [2021-03-10 20:30:50,129 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 20:30:50,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/07-return-before-end.c [2021-03-10 20:30:50,130 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:30:50,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745ad2978/b042b3c3efab445b9600bbffd5b70932/FLAG3fb8cc3d9 [2021-03-10 20:30:50,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745ad2978/b042b3c3efab445b9600bbffd5b70932 [2021-03-10 20:30:50,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:30:50,628 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 20:30:50,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 20:30:50,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 20:30:50,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 20:30:50,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d83bbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50, skipping insertion in model container [2021-03-10 20:30:50,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 20:30:50,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 20:30:50,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:30:50,816 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 20:30:50,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:30:50,842 INFO L208 MainTranslator]: Completed translation [2021-03-10 20:30:50,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50 WrapperNode [2021-03-10 20:30:50,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 20:30:50,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:30:50,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:30:50,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:30:50,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:30:50,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:30:50,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:30:50,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:30:50,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... [2021-03-10 20:30:50,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:30:50,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:30:50,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:30:50,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:30:50,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:30:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 20:30:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 20:30:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 20:30:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-10 20:30:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-10 20:30:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:30:50,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:30:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 20:30:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 20:30:50,959 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:30:51,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:30:51,219 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 20:30:51,220 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: fooEXIT is neither atomic block end nor error location. [2021-03-10 20:30:51,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:30:51 BoogieIcfgContainer [2021-03-10 20:30:51,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:30:51,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:30:51,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:30:51,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:30:51,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 08:30:50" (1/3) ... [2021-03-10 20:30:51,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24151a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:30:51, skipping insertion in model container [2021-03-10 20:30:51,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:30:50" (2/3) ... [2021-03-10 20:30:51,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24151a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:30:51, skipping insertion in model container [2021-03-10 20:30:51,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:30:51" (3/3) ... [2021-03-10 20:30:51,227 INFO L111 eAbstractionObserver]: Analyzing ICFG 07-return-before-end.c [2021-03-10 20:30:51,246 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:30:51,247 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:30:51,250 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 20:30:51,250 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:30:51,268 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,268 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,268 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,268 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,269 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,269 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,269 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,269 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,269 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,270 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,271 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,272 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,273 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,273 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,273 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:30:51,275 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:30:51,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-10 20:30:51,314 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:30:51,314 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:30:51,314 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:30:51,314 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:30:51,315 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:30:51,315 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:30:51,315 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:30:51,315 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:30:51,323 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 23 transitions, 51 flow [2021-03-10 20:30:51,333 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 44 states have (on average 1.7727272727272727) internal successors, (78), 45 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7727272727272727) internal successors, (78), 45 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-10 20:30:51,340 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:51,341 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:51,341 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:51,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:51,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1918863577, now seen corresponding path program 1 times [2021-03-10 20:30:51,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:51,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111316536] [2021-03-10 20:30:51,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:51,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111316536] [2021-03-10 20:30:51,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:51,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 20:30:51,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245019863] [2021-03-10 20:30:51,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 20:30:51,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:51,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 20:30:51,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:30:51,559 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7727272727272727) internal successors, (78), 45 states have internal predecessors, (78), 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) Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:51,602 INFO L93 Difference]: Finished difference Result 51 states and 78 transitions. [2021-03-10 20:30:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 20:30:51,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2021-03-10 20:30:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:51,610 INFO L225 Difference]: With dead ends: 51 [2021-03-10 20:30:51,610 INFO L226 Difference]: Without dead ends: 20 [2021-03-10 20:30:51,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:30:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-03-10 20:30:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-03-10 20:30:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-03-10 20:30:51,640 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2021-03-10 20:30:51,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:51,640 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-03-10 20:30:51,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-03-10 20:30:51,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-10 20:30:51,642 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:51,642 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:51,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:30:51,643 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:51,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:51,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1498181559, now seen corresponding path program 1 times [2021-03-10 20:30:51,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:51,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476812367] [2021-03-10 20:30:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:51,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476812367] [2021-03-10 20:30:51,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:51,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 20:30:51,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757921616] [2021-03-10 20:30:51,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 20:30:51,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:51,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 20:30:51,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 20:30:51,735 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:51,774 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-03-10 20:30:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-10 20:30:51,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 15 [2021-03-10 20:30:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:51,776 INFO L225 Difference]: With dead ends: 21 [2021-03-10 20:30:51,776 INFO L226 Difference]: Without dead ends: 18 [2021-03-10 20:30:51,778 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 20:30:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-03-10 20:30:51,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-03-10 20:30:51,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-03-10 20:30:51,789 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2021-03-10 20:30:51,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:51,789 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-03-10 20:30:51,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-03-10 20:30:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-10 20:30:51,795 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:30:51,795 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:30:51,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 20:30:51,796 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:30:51,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:30:51,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1497772359, now seen corresponding path program 2 times [2021-03-10 20:30:51,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:30:51,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025406812] [2021-03-10 20:30:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:30:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:30:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:30:51,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025406812] [2021-03-10 20:30:51,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:30:51,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 20:30:51,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995221973] [2021-03-10 20:30:51,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 20:30:51,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:30:51,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 20:30:51,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:30:51,844 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:30:51,849 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-03-10 20:30:51,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 20:30:51,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) Word has length 15 [2021-03-10 20:30:51,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:30:51,851 INFO L225 Difference]: With dead ends: 16 [2021-03-10 20:30:51,851 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 20:30:51,851 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:30:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 20:30:51,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 20:30:51,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 20:30:51,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-03-10 20:30:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:30:51,852 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 20:30:51,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:30:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 20:30:51,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 20:30:51,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 20:30:51,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:30:51 BasicIcfg [2021-03-10 20:30:51,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:30:51,858 INFO L168 Benchmark]: Toolchain (without parser) took 1232.79 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 234.4 MB in the beginning and 340.0 MB in the end (delta: -105.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:51,859 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:30:51,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.16 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.9 MB in the beginning and 350.5 MB in the end (delta: -116.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:51,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.91 ms. Allocated memory is still 367.0 MB. Free memory was 350.5 MB in the beginning and 349.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:30:51,861 INFO L168 Benchmark]: Boogie Preprocessor took 19.46 ms. Allocated memory is still 367.0 MB. Free memory was 349.0 MB in the beginning and 348.3 MB in the end (delta: 788.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:51,864 INFO L168 Benchmark]: RCFGBuilder took 328.17 ms. Allocated memory is still 367.0 MB. Free memory was 348.3 MB in the beginning and 334.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-10 20:30:51,865 INFO L168 Benchmark]: TraceAbstraction took 634.31 ms. Allocated memory is still 367.0 MB. Free memory was 334.4 MB in the beginning and 340.0 MB in the end (delta: -5.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:30:51,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 213.16 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.9 MB in the beginning and 350.5 MB in the end (delta: -116.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.91 ms. Allocated memory is still 367.0 MB. Free memory was 350.5 MB in the beginning and 349.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.46 ms. Allocated memory is still 367.0 MB. Free memory was 349.0 MB in the beginning and 348.3 MB in the end (delta: 788.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 328.17 ms. Allocated memory is still 367.0 MB. Free memory was 348.3 MB in the beginning and 334.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 634.31 ms. Allocated memory is still 367.0 MB. Free memory was 334.4 MB in the beginning and 340.0 MB in the end (delta: -5.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 541.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 8.5ms, AutomataDifference: 122.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 17 SDslu, 29 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 28.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.0ms SsaConstructionTime, 62.8ms SatisfiabilityAnalysisTime, 149.9ms InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...