/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/joinMultipleReturnValues.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:29:23,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:29:23,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:29:24,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:29:24,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:29:24,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:29:24,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:29:24,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:29:24,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:29:24,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:29:24,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:29:24,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:29:24,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:29:24,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:29:24,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:29:24,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:29:24,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:29:24,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:29:24,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:29:24,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:29:24,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:29:24,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:29:24,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:29:24,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:29:24,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-10 20:29:24,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-10 20:29:24,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-10 20:29:24,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-10 20:29:24,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-10 20:29:24,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-10 20:29:24,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-10 20:29:24,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-10 20:29:24,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-10 20:29:24,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-10 20:29:24,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-10 20:29:24,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-10 20:29:24,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-10 20:29:24,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-10 20:29:24,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:29:24,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:29:24,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:29:24,073 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 20:29:24,109 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:29:24,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:29:24,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:29:24,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:29:24,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:29:24,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:29:24,113 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:29:24,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:29:24,113 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:29:24,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:29:24,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:29:24,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:29:24,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:29:24,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:29:24,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:29:24,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:29:24,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:29:24,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:29:24,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:29:24,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:29:24,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:29:24,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:29:24,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:29:24,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 20:29:24,472 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 20:29:24,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-03-10 20:29:24,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f623154/a3fcbfbf01834537969fd894c168cb07/FLAG3b693fe06 [2021-03-10 20:29:24,992 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 20:29:24,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/joinMultipleReturnValues.c [2021-03-10 20:29:24,993 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:29:24,993 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:29:24,993 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:29:25,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f623154/a3fcbfbf01834537969fd894c168cb07/FLAG3b693fe06 [2021-03-10 20:29:25,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35f623154/a3fcbfbf01834537969fd894c168cb07 [2021-03-10 20:29:25,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:29:25,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 20:29:25,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 20:29:25,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 20:29:25,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 20:29:25,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e00e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25, skipping insertion in model container [2021-03-10 20:29:25,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 20:29:25,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 20:29:25,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:29:25,221 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 20:29:25,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:29:25,274 INFO L208 MainTranslator]: Completed translation [2021-03-10 20:29:25,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25 WrapperNode [2021-03-10 20:29:25,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 20:29:25,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:29:25,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:29:25,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:29:25,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:29:25,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:29:25,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:29:25,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:29:25,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (1/1) ... [2021-03-10 20:29:25,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:29:25,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:29:25,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:29:25,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:29:25,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (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 20:29:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-03-10 20:29:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 20:29:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-03-10 20:29:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-10 20:29:25,415 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-10 20:29:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:29:25,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:29:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 20:29:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 20:29:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 20:29:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 20:29:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 20:29:25,417 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 20:29:25,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:29:25,689 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 20:29:25,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:29:25 BoogieIcfgContainer [2021-03-10 20:29:25,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:29:25,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:29:25,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:29:25,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:29:25,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 08:29:25" (1/3) ... [2021-03-10 20:29:25,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a13ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:29:25, skipping insertion in model container [2021-03-10 20:29:25,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:29:25" (2/3) ... [2021-03-10 20:29:25,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a13ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:29:25, skipping insertion in model container [2021-03-10 20:29:25,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:29:25" (3/3) ... [2021-03-10 20:29:25,696 INFO L111 eAbstractionObserver]: Analyzing ICFG joinMultipleReturnValues.c [2021-03-10 20:29:25,710 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:29:25,710 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:29:25,713 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-10 20:29:25,714 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:29:25,751 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,751 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,751 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,752 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,753 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,753 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,760 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,760 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,760 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,760 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,760 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,760 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,761 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,762 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,763 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,763 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,763 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,763 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,763 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,763 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,764 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,764 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,764 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,764 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,764 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,764 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,765 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,765 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,765 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,765 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,765 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,766 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,766 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,769 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,769 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,769 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,769 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,770 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,770 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,770 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,770 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,770 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,770 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,771 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,771 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,771 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,772 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,773 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,773 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,773 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,773 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,780 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,780 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,780 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~ret_val~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,781 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,782 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~num~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,782 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#t~malloc0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:29:25,795 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-10 20:29:25,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-10 20:29:25,825 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:29:25,826 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:29:25,826 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:29:25,826 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:29:25,826 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:29:25,826 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:29:25,826 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:29:25,826 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:29:25,836 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 58 transitions, 124 flow [2021-03-10 20:29:25,848 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 89 states, 86 states have (on average 1.430232558139535) internal successors, (123), 88 states have internal predecessors, (123), 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 20:29:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 86 states have (on average 1.430232558139535) internal successors, (123), 88 states have internal predecessors, (123), 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 20:29:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-03-10 20:29:25,856 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:29:25,857 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:29:25,858 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:29:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:29:25,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1695205515, now seen corresponding path program 1 times [2021-03-10 20:29:25,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:29:25,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698553694] [2021-03-10 20:29:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:29:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:29:26,105 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 20:29:26,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698553694] [2021-03-10 20:29:26,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:29:26,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-10 20:29:26,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381853248] [2021-03-10 20:29:26,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-10 20:29:26,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:29:26,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-10 20:29:26,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-03-10 20:29:26,124 INFO L87 Difference]: Start difference. First operand has 89 states, 86 states have (on average 1.430232558139535) internal successors, (123), 88 states have internal predecessors, (123), 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 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 20:29:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:29:26,355 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2021-03-10 20:29:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 20:29:26,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 39 [2021-03-10 20:29:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:29:26,363 INFO L225 Difference]: With dead ends: 80 [2021-03-10 20:29:26,363 INFO L226 Difference]: Without dead ends: 70 [2021-03-10 20:29:26,364 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-03-10 20:29:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-03-10 20:29:26,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-03-10 20:29:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 69 states have internal predecessors, (95), 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 20:29:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 95 transitions. [2021-03-10 20:29:26,393 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 95 transitions. Word has length 39 [2021-03-10 20:29:26,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:29:26,394 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 95 transitions. [2021-03-10 20:29:26,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 20:29:26,394 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 95 transitions. [2021-03-10 20:29:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-03-10 20:29:26,395 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:29:26,395 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:29:26,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:29:26,396 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:29:26,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:29:26,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1050817325, now seen corresponding path program 1 times [2021-03-10 20:29:26,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:29:26,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000683140] [2021-03-10 20:29:26,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:29:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:29:26,758 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 20:29:26,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000683140] [2021-03-10 20:29:26,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:29:26,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 20:29:26,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713899437] [2021-03-10 20:29:26,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 20:29:26,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:29:26,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 20:29:26,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2021-03-10 20:29:26,765 INFO L87 Difference]: Start difference. First operand 70 states and 95 transitions. Second operand has 19 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 19 states have internal predecessors, (41), 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 20:29:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:29:27,535 INFO L93 Difference]: Finished difference Result 69 states and 94 transitions. [2021-03-10 20:29:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 20:29:27,538 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 19 states have internal predecessors, (41), 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 41 [2021-03-10 20:29:27,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:29:27,539 INFO L225 Difference]: With dead ends: 69 [2021-03-10 20:29:27,539 INFO L226 Difference]: Without dead ends: 69 [2021-03-10 20:29:27,540 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 742.7ms TimeCoverageRelationStatistics Valid=309, Invalid=1251, Unknown=0, NotChecked=0, Total=1560 [2021-03-10 20:29:27,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-03-10 20:29:27,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-03-10 20:29:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.3823529411764706) internal successors, (94), 68 states have internal predecessors, (94), 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 20:29:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2021-03-10 20:29:27,546 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 94 transitions. Word has length 41 [2021-03-10 20:29:27,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:29:27,546 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 94 transitions. [2021-03-10 20:29:27,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 19 states have internal predecessors, (41), 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 20:29:27,547 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 94 transitions. [2021-03-10 20:29:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 20:29:27,548 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:29:27,548 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:29:27,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 20:29:27,548 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:29:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:29:27,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1784401421, now seen corresponding path program 1 times [2021-03-10 20:29:27,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:29:27,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217424014] [2021-03-10 20:29:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:29:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:29:27,726 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 20:29:27,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217424014] [2021-03-10 20:29:27,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:29:27,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-10 20:29:27,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660247016] [2021-03-10 20:29:27,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-10 20:29:27,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:29:27,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-10 20:29:27,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-03-10 20:29:27,728 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 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 20:29:28,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:29:28,196 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2021-03-10 20:29:28,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-10 20:29:28,197 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 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 42 [2021-03-10 20:29:28,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:29:28,197 INFO L225 Difference]: With dead ends: 68 [2021-03-10 20:29:28,198 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 20:29:28,198 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 448.7ms TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2021-03-10 20:29:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 20:29:28,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 20:29:28,199 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 20:29:28,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 20:29:28,199 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-03-10 20:29:28,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:29:28,199 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 20:29:28,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 13 states have internal predecessors, (42), 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 20:29:28,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 20:29:28,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 20:29:28,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 20:29:28,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:29:28 BasicIcfg [2021-03-10 20:29:28,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:29:28,204 INFO L168 Benchmark]: Toolchain (without parser) took 3166.42 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 232.2 MB in the beginning and 187.1 MB in the end (delta: 45.1 MB). Peak memory consumption was 160.6 MB. Max. memory is 16.0 GB. [2021-03-10 20:29:28,204 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 20:29:28,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.17 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 231.6 MB in the beginning and 355.1 MB in the end (delta: -123.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-10 20:29:28,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.25 ms. Allocated memory is still 371.2 MB. Free memory was 355.1 MB in the beginning and 353.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:29:28,206 INFO L168 Benchmark]: Boogie Preprocessor took 31.93 ms. Allocated memory is still 371.2 MB. Free memory was 353.3 MB in the beginning and 352.3 MB in the end (delta: 972.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:29:28,207 INFO L168 Benchmark]: RCFGBuilder took 350.00 ms. Allocated memory is still 371.2 MB. Free memory was 351.6 MB in the beginning and 333.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-10 20:29:28,207 INFO L168 Benchmark]: TraceAbstraction took 2511.82 ms. Allocated memory is still 371.2 MB. Free memory was 332.7 MB in the beginning and 187.1 MB in the end (delta: 145.7 MB). Peak memory consumption was 148.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:29:28,209 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 234.17 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 231.6 MB in the beginning and 355.1 MB in the end (delta: -123.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.25 ms. Allocated memory is still 371.2 MB. Free memory was 355.1 MB in the beginning and 353.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.93 ms. Allocated memory is still 371.2 MB. Free memory was 353.3 MB in the beginning and 352.3 MB in the end (delta: 972.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 350.00 ms. Allocated memory is still 371.2 MB. Free memory was 351.6 MB in the beginning and 333.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2511.82 ms. Allocated memory is still 371.2 MB. Free memory was 332.7 MB in the beginning and 187.1 MB in the end (delta: 145.7 MB). Peak memory consumption was 148.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 45]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2377.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 9.9ms, AutomataDifference: 1502.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 103 SDtfs, 408 SDslu, 621 SDs, 0 SdLazy, 591 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 354.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1327.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 25.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.3ms SsaConstructionTime, 85.8ms SatisfiabilityAnalysisTime, 612.3ms InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 835 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...