/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread/bigshot_s2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 02:55:44,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 02:55:44,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 02:55:44,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 02:55:44,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 02:55:44,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 02:55:44,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 02:55:44,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 02:55:44,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 02:55:44,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 02:55:44,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 02:55:44,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 02:55:44,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 02:55:44,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 02:55:44,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 02:55:44,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 02:55:44,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 02:55:44,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 02:55:44,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 02:55:44,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 02:55:44,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 02:55:44,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 02:55:44,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 02:55:44,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 02:55:44,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 02:55:44,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 02:55:44,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 02:55:44,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 02:55:44,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 02:55:44,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 02:55:44,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 02:55:44,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 02:55:44,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 02:55:44,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 02:55:44,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 02:55:44,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 02:55:44,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 02:55:44,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 02:55:44,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 02:55:44,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 02:55:45,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 02:55:45,001 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-SemanticLbe-SemanticLooper.epf [2020-10-16 02:55:45,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 02:55:45,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 02:55:45,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 02:55:45,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 02:55:45,047 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 02:55:45,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 02:55:45,047 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 02:55:45,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 02:55:45,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 02:55:45,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 02:55:45,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 02:55:45,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 02:55:45,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 02:55:45,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 02:55:45,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 02:55:45,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 02:55:45,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 02:55:45,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 02:55:45,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 02:55:45,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 02:55:45,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 02:55:45,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 02:55:45,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 02:55:45,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 02:55:45,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 02:55:45,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 02:55:45,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 02:55:45,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 02:55:45,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 02:55:45,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 02:55:45,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 02:55:45,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 02:55:45,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 02:55:45,397 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 02:55:45,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/bigshot_s2.i [2020-10-16 02:55:45,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ad7af46/c7bc3227df464573aa852b06311f3e7b/FLAG670596275 [2020-10-16 02:55:46,054 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 02:55:46,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2020-10-16 02:55:46,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ad7af46/c7bc3227df464573aa852b06311f3e7b/FLAG670596275 [2020-10-16 02:55:46,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62ad7af46/c7bc3227df464573aa852b06311f3e7b [2020-10-16 02:55:46,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 02:55:46,303 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 02:55:46,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 02:55:46,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 02:55:46,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 02:55:46,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:46" (1/1) ... [2020-10-16 02:55:46,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0041fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:46, skipping insertion in model container [2020-10-16 02:55:46,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:46" (1/1) ... [2020-10-16 02:55:46,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 02:55:46,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 02:55:46,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 02:55:47,039 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 02:55:47,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 02:55:47,282 INFO L208 MainTranslator]: Completed translation [2020-10-16 02:55:47,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47 WrapperNode [2020-10-16 02:55:47,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 02:55:47,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 02:55:47,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 02:55:47,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 02:55:47,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 02:55:47,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 02:55:47,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 02:55:47,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 02:55:47,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (1/1) ... [2020-10-16 02:55:47,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 02:55:47,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 02:55:47,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 02:55:47,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 02:55:47,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (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 [2020-10-16 02:55:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 02:55:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 02:55:47,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-16 02:55:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 02:55:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 02:55:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 02:55:47,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 02:55:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 02:55:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 02:55:47,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-16 02:55:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 02:55:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 02:55:47,448 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 02:55:47,787 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 02:55:47,787 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 02:55:47,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:47 BoogieIcfgContainer [2020-10-16 02:55:47,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 02:55:47,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 02:55:47,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 02:55:47,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 02:55:47,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:55:46" (1/3) ... [2020-10-16 02:55:47,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f69da38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:47, skipping insertion in model container [2020-10-16 02:55:47,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:47" (2/3) ... [2020-10-16 02:55:47,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f69da38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:47, skipping insertion in model container [2020-10-16 02:55:47,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:47" (3/3) ... [2020-10-16 02:55:47,799 INFO L111 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2020-10-16 02:55:47,811 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 02:55:47,823 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 02:55:47,825 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 02:55:47,863 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,863 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,863 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,864 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,864 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,865 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,865 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,865 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,866 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,867 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,867 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,867 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,867 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,868 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,869 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,870 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,871 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,872 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,873 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,874 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~strcpy~res4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~strcpy~res4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,875 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~strcpy~res4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,876 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~strcpy~res4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,879 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,880 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,880 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~strcpy~res4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,881 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~strcpy~res4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,882 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~malloc2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,890 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~malloc2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,890 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,890 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 02:55:47,919 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 02:55:47,942 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 02:55:47,942 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 02:55:47,942 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 02:55:47,943 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 02:55:47,943 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 02:55:47,943 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 02:55:47,943 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 02:55:47,943 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 02:55:47,957 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 152 flow [2020-10-16 02:55:47,997 INFO L129 PetriNetUnfolder]: 4/61 cut-off events. [2020-10-16 02:55:47,998 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 02:55:48,002 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 61 events. 4/61 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-16 02:55:48,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 65 transitions, 152 flow [2020-10-16 02:55:48,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 114 flow [2020-10-16 02:55:48,012 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 02:55:48,015 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 114 flow [2020-10-16 02:55:48,018 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 114 flow [2020-10-16 02:55:48,019 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 114 flow [2020-10-16 02:55:48,039 INFO L129 PetriNetUnfolder]: 3/51 cut-off events. [2020-10-16 02:55:48,040 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 02:55:48,040 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 3/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2020-10-16 02:55:48,041 INFO L117 LiptonReduction]: Number of co-enabled transitions 96 [2020-10-16 02:55:49,091 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-16 02:55:49,228 INFO L132 LiptonReduction]: Checked pairs total: 103 [2020-10-16 02:55:49,228 INFO L134 LiptonReduction]: Total number of compositions: 42 [2020-10-16 02:55:49,233 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1224 [2020-10-16 02:55:49,247 INFO L129 PetriNetUnfolder]: 2/13 cut-off events. [2020-10-16 02:55:49,247 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 02:55:49,247 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 02:55:49,248 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 02:55:49,249 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 02:55:49,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 02:55:49,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1504269105, now seen corresponding path program 1 times [2020-10-16 02:55:49,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 02:55:49,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675225956] [2020-10-16 02:55:49,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 02:55:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 02:55:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 02:55:49,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675225956] [2020-10-16 02:55:49,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 02:55:49,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 02:55:49,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855269434] [2020-10-16 02:55:49,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 02:55:49,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 02:55:49,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 02:55:49,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 02:55:49,567 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 107 [2020-10-16 02:55:49,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 14 transitions, 40 flow. Second operand 3 states. [2020-10-16 02:55:49,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 02:55:49,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 107 [2020-10-16 02:55:49,571 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 02:55:49,594 INFO L129 PetriNetUnfolder]: 1/13 cut-off events. [2020-10-16 02:55:49,594 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 02:55:49,594 INFO L80 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 13 events. 1/13 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 13. Up to 3 conditions per place. [2020-10-16 02:55:49,596 INFO L132 encePairwiseOnDemand]: 105/107 looper letters, 3 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2020-10-16 02:55:49,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 46 flow [2020-10-16 02:55:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 02:55:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 02:55:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2020-10-16 02:55:49,612 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7819314641744548 [2020-10-16 02:55:49,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2020-10-16 02:55:49,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2020-10-16 02:55:49,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 02:55:49,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2020-10-16 02:55:49,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 02:55:49,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 02:55:49,630 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 02:55:49,632 INFO L185 Difference]: Start difference. First operand has 19 places, 14 transitions, 40 flow. Second operand 3 states and 251 transitions. [2020-10-16 02:55:49,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 46 flow [2020-10-16 02:55:49,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 38 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 02:55:49,638 INFO L241 Difference]: Finished difference. Result has 17 places, 13 transitions, 32 flow [2020-10-16 02:55:49,641 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=17, PETRI_TRANSITIONS=13} [2020-10-16 02:55:49,641 INFO L342 CegarLoopForPetriNet]: 19 programPoint places, -2 predicate places. [2020-10-16 02:55:49,642 INFO L481 AbstractCegarLoop]: Abstraction has has 17 places, 13 transitions, 32 flow [2020-10-16 02:55:49,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 02:55:49,642 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 02:55:49,642 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 02:55:49,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 02:55:49,643 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 02:55:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 02:55:49,643 INFO L82 PathProgramCache]: Analyzing trace with hash -579101374, now seen corresponding path program 1 times [2020-10-16 02:55:49,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 02:55:49,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274910227] [2020-10-16 02:55:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 02:55:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 02:55:49,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 02:55:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 02:55:49,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 02:55:49,741 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 02:55:49,742 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 02:55:49,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 02:55:49,744 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 02:55:49,752 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [206] [206] L-1-6-->L1097-5: Formula: (and (= |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12_Out-133901373| (select (select |#memory_int_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base_In-133901373|) (+ |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset_In-133901373|))) (= |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base_In-133901373|) (= |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12_Out-133901373| 0) (= (store |#memory_int_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base_In-133901373| (store (select |#memory_int_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base_In-133901373|) (+ |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset_In-133901373|) |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12_Out-133901373|)) |#memory_int_Out-133901373|) (= |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset_In-133901373| |thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset_In-133901373|)) InVars {thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base_In-133901373|, #memory_int=|#memory_int_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base_In-133901373|} OutVars{thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.base_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.offset_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.base_In-133901373|, #memory_int=|#memory_int_Out-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest.offset_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_src.offset_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#res.base_In-133901373|, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12=|thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12_Out-133901373|} AuxVars[] AssignedVars[#memory_int, thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~mem12] because there is no mapped edge [2020-10-16 02:55:49,764 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,765 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,766 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,766 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,767 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,767 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,767 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,768 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,768 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled [2020-10-16 02:55:49,769 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled [2020-10-16 02:55:49,769 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,769 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,770 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,770 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,770 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled [2020-10-16 02:55:49,771 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled [2020-10-16 02:55:49,771 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,772 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,772 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,772 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,773 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled [2020-10-16 02:55:49,773 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled [2020-10-16 02:55:49,774 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,774 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,774 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled [2020-10-16 02:55:49,775 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled [2020-10-16 02:55:49,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:55:49 BasicIcfg [2020-10-16 02:55:49,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 02:55:49,797 INFO L168 Benchmark]: Toolchain (without parser) took 3493.76 ms. Allocated memory was 252.2 MB in the beginning and 360.2 MB in the end (delta: 108.0 MB). Free memory was 207.8 MB in the beginning and 164.1 MB in the end (delta: 43.7 MB). Peak memory consumption was 151.7 MB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,798 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 252.2 MB. Free memory was 230.2 MB in the beginning and 229.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 979.25 ms. Allocated memory was 252.2 MB in the beginning and 316.7 MB in the end (delta: 64.5 MB). Free memory was 207.8 MB in the beginning and 236.4 MB in the end (delta: -28.6 MB). Peak memory consumption was 46.3 MB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.35 ms. Allocated memory is still 316.7 MB. Free memory was 236.4 MB in the beginning and 233.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,801 INFO L168 Benchmark]: Boogie Preprocessor took 40.80 ms. Allocated memory is still 316.7 MB. Free memory was 233.9 MB in the beginning and 232.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,802 INFO L168 Benchmark]: RCFGBuilder took 409.23 ms. Allocated memory is still 316.7 MB. Free memory was 232.2 MB in the beginning and 208.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,803 INFO L168 Benchmark]: TraceAbstraction took 2003.47 ms. Allocated memory was 316.7 MB in the beginning and 360.2 MB in the end (delta: 43.5 MB). Free memory was 207.7 MB in the beginning and 164.1 MB in the end (delta: 43.5 MB). Peak memory consumption was 87.0 MB. Max. memory is 14.2 GB. [2020-10-16 02:55:49,808 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 252.2 MB. Free memory was 230.2 MB in the beginning and 229.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 979.25 ms. Allocated memory was 252.2 MB in the beginning and 316.7 MB in the end (delta: 64.5 MB). Free memory was 207.8 MB in the beginning and 236.4 MB in the end (delta: -28.6 MB). Peak memory consumption was 46.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 55.35 ms. Allocated memory is still 316.7 MB. Free memory was 236.4 MB in the beginning and 233.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 40.80 ms. Allocated memory is still 316.7 MB. Free memory was 233.9 MB in the beginning and 232.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 409.23 ms. Allocated memory is still 316.7 MB. Free memory was 232.2 MB in the beginning and 208.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2003.47 ms. Allocated memory was 316.7 MB in the beginning and 360.2 MB in the end (delta: 43.5 MB). Free memory was 207.7 MB in the beginning and 164.1 MB in the end (delta: 43.5 MB). Peak memory consumption was 87.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_dest : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_strcpy_src : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 70 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 4 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 5 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 55 PlacesBefore, 19 PlacesAfterwards, 51 TransitionsBefore, 14 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 103 MoverChecksTotal - UnprovableResult [Line: 1088]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1097. Possible FailurePath: [L1089] 0 char *v; [L1102] 0 pthread_t t1, t2; [L1103] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, v={0:0}] [L1104] 0 \read(t1) VAL [arg={0:0}, v={0:0}] [L1092] 1 v = malloc(sizeof(char) * 8) [L1093] 1 return 0; [L1104] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char) * 8)={-1:0}, v={-1:0}] [L1105] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char) * 8)={-1:0}, v={-1:0}] [L1097] COND TRUE 2 \read(*v) [L1097] CALL 2 strcpy(v, "Bigshot") [L1106] 0 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char) * 8)={-1:0}, v={-1:0}] [L1098] 2 return 0; [L1106] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char) * 8)={-1:0}, v={-1:0}] [L1107] 0 v[0] [L1088] COND TRUE 0 !expression [L1088] 0 __VERIFIER_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, malloc(sizeof(char) * 8)={-1:0}, v={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...