/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/13-loop-after.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 13:15:22,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 13:15:22,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 13:15:22,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 13:15:22,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 13:15:22,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 13:15:22,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 13:15:22,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 13:15:22,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 13:15:22,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 13:15:22,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 13:15:22,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 13:15:22,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 13:15:22,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 13:15:22,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 13:15:22,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 13:15:22,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 13:15:22,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 13:15:22,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 13:15:22,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 13:15:22,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 13:15:22,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 13:15:22,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 13:15:22,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 13:15:22,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 13:15:22,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 13:15:22,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 13:15:22,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 13:15:22,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 13:15:22,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 13:15:22,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 13:15:22,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 13:15:22,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 13:15:22,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 13:15:22,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 13:15:22,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 13:15:22,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 13:15:22,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 13:15:22,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 13:15:22,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 13:15:22,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 13:15:22,099 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-VariableLbe.epf [2021-03-24 13:15:22,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 13:15:22,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 13:15:22,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 13:15:22,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 13:15:22,129 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 13:15:22,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 13:15:22,129 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 13:15:22,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 13:15:22,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 13:15:22,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 13:15:22,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 13:15:22,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:15:22,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 13:15:22,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 13:15:22,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 13:15:22,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 13:15:22,132 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 13:15:22,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 13:15:22,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 13:15:22,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 13:15:22,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 13:15:22,442 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 13:15:22,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/13-loop-after.c [2021-03-24 13:15:22,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89349b476/d9916b65218b47e5bffbb9dc8dc72c1c/FLAGa13d3395c [2021-03-24 13:15:22,912 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 13:15:22,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/13-loop-after.c [2021-03-24 13:15:22,912 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-24 13:15:22,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89349b476/d9916b65218b47e5bffbb9dc8dc72c1c/FLAGa13d3395c [2021-03-24 13:15:22,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89349b476/d9916b65218b47e5bffbb9dc8dc72c1c [2021-03-24 13:15:22,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 13:15:22,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 13:15:22,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 13:15:22,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 13:15:22,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 13:15:22,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 01:15:22" (1/1) ... [2021-03-24 13:15:22,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18197fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:22, skipping insertion in model container [2021-03-24 13:15:22,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 01:15:22" (1/1) ... [2021-03-24 13:15:22,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 13:15:22,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 13:15:23,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 13:15:23,095 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 13:15:23,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 13:15:23,137 INFO L208 MainTranslator]: Completed translation [2021-03-24 13:15:23,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23 WrapperNode [2021-03-24 13:15:23,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 13:15:23,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 13:15:23,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 13:15:23,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 13:15:23,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 13:15:23,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 13:15:23,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 13:15:23,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 13:15:23,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (1/1) ... [2021-03-24 13:15:23,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 13:15:23,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 13:15:23,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 13:15:23,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 13:15:23,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (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 [2021-03-24 13:15:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 13:15:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 13:15:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 13:15:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-24 13:15:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-24 13:15:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 13:15:23,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 13:15:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 13:15:23,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 13:15:23,230 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 13:15:23,363 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 13:15:23,364 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-03-24 13:15:23,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:15:23 BoogieIcfgContainer [2021-03-24 13:15:23,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 13:15:23,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 13:15:23,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 13:15:23,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 13:15:23,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 01:15:22" (1/3) ... [2021-03-24 13:15:23,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c1f5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:15:23, skipping insertion in model container [2021-03-24 13:15:23,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:23" (2/3) ... [2021-03-24 13:15:23,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c1f5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:15:23, skipping insertion in model container [2021-03-24 13:15:23,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:15:23" (3/3) ... [2021-03-24 13:15:23,369 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-loop-after.c [2021-03-24 13:15:23,372 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 13:15:23,375 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 13:15:23,375 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 13:15:23,405 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,406 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,406 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,406 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,406 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,406 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,406 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,407 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,407 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,407 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,407 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,407 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,409 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,409 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,409 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,409 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:23,411 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 13:15:23,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-24 13:15:23,460 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 13:15:23,464 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 13:15:23,464 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 13:15:23,464 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 13:15:23,464 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 13:15:23,464 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 13:15:23,464 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 13:15:23,464 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 13:15:23,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 29 transitions, 63 flow [2021-03-24 13:15:23,488 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-03-24 13:15:23,488 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:23,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 28 events. 2/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2021-03-24 13:15:23,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 29 transitions, 63 flow [2021-03-24 13:15:23,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 28 transitions, 59 flow [2021-03-24 13:15:23,494 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 13:15:23,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 28 transitions, 59 flow [2021-03-24 13:15:23,501 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 28 transitions, 59 flow [2021-03-24 13:15:23,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 59 flow [2021-03-24 13:15:23,524 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-03-24 13:15:23,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:23,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 28 events. 2/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2021-03-24 13:15:23,528 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-24 13:15:23,901 INFO L154 LiptonReduction]: Checked pairs total: 170 [2021-03-24 13:15:23,901 INFO L156 LiptonReduction]: Total number of compositions: 15 [2021-03-24 13:15:23,903 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 410 [2021-03-24 13:15:23,908 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-24 13:15:23,908 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:23,909 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:15:23,909 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-24 13:15:23,909 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:15:23,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:15:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1060870029, now seen corresponding path program 1 times [2021-03-24 13:15:23,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:15:23,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181934581] [2021-03-24 13:15:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:15:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:15:24,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:24,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:15:24,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:24,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:15:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:15:24,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181934581] [2021-03-24 13:15:24,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:15:24,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 13:15:24,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999969056] [2021-03-24 13:15:24,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:15:24,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:15:24,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:15:24,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:15:24,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 44 [2021-03-24 13:15:24,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-03-24 13:15:24,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:15:24,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 44 [2021-03-24 13:15:24,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:15:24,047 INFO L129 PetriNetUnfolder]: 4/20 cut-off events. [2021-03-24 13:15:24,047 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:24,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 20 events. 4/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 6/25 useless extension candidates. Maximal degree in co-relation 25. Up to 6 conditions per place. [2021-03-24 13:15:24,049 INFO L132 encePairwiseOnDemand]: 39/44 looper letters, 3 selfloop transitions, 2 changer transitions 2/13 dead transitions. [2021-03-24 13:15:24,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 13 transitions, 43 flow [2021-03-24 13:15:24,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:15:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:15:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2021-03-24 13:15:24,056 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7803030303030303 [2021-03-24 13:15:24,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 103 transitions. [2021-03-24 13:15:24,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 103 transitions. [2021-03-24 13:15:24,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:15:24,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 103 transitions. [2021-03-24 13:15:24,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-03-24 13:15:24,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2021-03-24 13:15:24,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2021-03-24 13:15:24,064 INFO L185 Difference]: Start difference. First operand has 16 places, 13 transitions, 29 flow. Second operand 3 states and 103 transitions. [2021-03-24 13:15:24,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 13 transitions, 43 flow [2021-03-24 13:15:24,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 13 transitions, 42 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:15:24,067 INFO L241 Difference]: Finished difference. Result has 17 places, 11 transitions, 36 flow [2021-03-24 13:15:24,068 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=17, PETRI_TRANSITIONS=11} [2021-03-24 13:15:24,069 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, 1 predicate places. [2021-03-24 13:15:24,069 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 11 transitions, 36 flow [2021-03-24 13:15:24,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2021-03-24 13:15:24,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:15:24,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:15:24,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 13:15:24,070 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:15:24,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:15:24,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1589282057, now seen corresponding path program 1 times [2021-03-24 13:15:24,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:15:24,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021457412] [2021-03-24 13:15:24,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:15:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:15:24,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:24,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:15:24,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:24,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:15:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:15:24,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021457412] [2021-03-24 13:15:24,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:15:24,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 13:15:24,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563336076] [2021-03-24 13:15:24,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:15:24,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:15:24,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:15:24,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:15:24,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 44 [2021-03-24 13:15:24,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 11 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-03-24 13:15:24,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:15:24,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 44 [2021-03-24 13:15:24,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:15:24,099 INFO L129 PetriNetUnfolder]: 4/17 cut-off events. [2021-03-24 13:15:24,099 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-24 13:15:24,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 17 events. 4/17 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 26. Up to 6 conditions per place. [2021-03-24 13:15:24,099 INFO L132 encePairwiseOnDemand]: 42/44 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2021-03-24 13:15:24,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 11 transitions, 44 flow [2021-03-24 13:15:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:15:24,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:15:24,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2021-03-24 13:15:24,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-24 13:15:24,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 99 transitions. [2021-03-24 13:15:24,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 99 transitions. [2021-03-24 13:15:24,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:15:24,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 99 transitions. [2021-03-24 13:15:24,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-03-24 13:15:24,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2021-03-24 13:15:24,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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) [2021-03-24 13:15:24,102 INFO L185 Difference]: Start difference. First operand has 17 places, 11 transitions, 36 flow. Second operand 3 states and 99 transitions. [2021-03-24 13:15:24,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 11 transitions, 44 flow [2021-03-24 13:15:24,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 11 transitions, 38 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 13:15:24,103 INFO L241 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2021-03-24 13:15:24,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2021-03-24 13:15:24,104 INFO L343 CegarLoopForPetriNet]: 16 programPoint places, -1 predicate places. [2021-03-24 13:15:24,104 INFO L480 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2021-03-24 13:15:24,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-03-24 13:15:24,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 13:15:24,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 01:15:24 BasicIcfg [2021-03-24 13:15:24,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 13:15:24,108 INFO L168 Benchmark]: Toolchain (without parser) took 1153.30 ms. Allocated memory is still 335.5 MB. Free memory was 298.2 MB in the beginning and 219.9 MB in the end (delta: 78.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:24,108 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 335.5 MB. Free memory was 316.7 MB in the beginning and 316.7 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:15:24,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.50 ms. Allocated memory is still 335.5 MB. Free memory was 298.0 MB in the beginning and 319.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:24,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.24 ms. Allocated memory is still 335.5 MB. Free memory was 319.6 MB in the beginning and 318.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:15:24,109 INFO L168 Benchmark]: Boogie Preprocessor took 17.55 ms. Allocated memory is still 335.5 MB. Free memory was 318.5 MB in the beginning and 317.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:24,109 INFO L168 Benchmark]: RCFGBuilder took 183.11 ms. Allocated memory is still 335.5 MB. Free memory was 317.2 MB in the beginning and 302.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:24,110 INFO L168 Benchmark]: TraceAbstraction took 741.10 ms. Allocated memory is still 335.5 MB. Free memory was 301.7 MB in the beginning and 219.9 MB in the end (delta: 81.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:24,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 335.5 MB. Free memory was 316.7 MB in the beginning and 316.7 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 182.50 ms. Allocated memory is still 335.5 MB. Free memory was 298.0 MB in the beginning and 319.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.24 ms. Allocated memory is still 335.5 MB. Free memory was 319.6 MB in the beginning and 318.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.55 ms. Allocated memory is still 335.5 MB. Free memory was 318.5 MB in the beginning and 317.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 183.11 ms. Allocated memory is still 335.5 MB. Free memory was 317.2 MB in the beginning and 302.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 741.10 ms. Allocated memory is still 335.5 MB. Free memory was 301.7 MB in the beginning and 219.9 MB in the end (delta: 81.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 400.2ms, 30 PlacesBefore, 16 PlacesAfterwards, 28 TransitionsBefore, 13 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 15 TotalNumberOfCompositions, 170 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 61, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 61, unknown conditional: 0, unknown unconditional: 61] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 648.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 51.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 442.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.2ms SsaConstructionTime, 16.9ms SatisfiabilityAnalysisTime, 45.3ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...