/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/11a-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 13:15:13,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 13:15:13,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 13:15:13,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 13:15:13,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 13:15:13,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 13:15:13,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 13:15:13,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 13:15:13,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 13:15:13,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 13:15:13,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 13:15:13,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 13:15:13,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 13:15:13,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 13:15:13,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 13:15:13,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 13:15:13,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 13:15:13,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 13:15:13,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 13:15:13,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 13:15:13,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 13:15:13,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 13:15:13,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 13:15:13,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 13:15:13,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 13:15:13,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 13:15:13,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 13:15:13,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 13:15:13,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 13:15:13,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 13:15:13,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 13:15:13,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 13:15:13,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 13:15:13,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 13:15:13,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 13:15:13,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 13:15:13,132 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 13:15:13,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 13:15:13,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 13:15:13,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 13:15:13,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 13:15:13,152 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 13:15:13,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 13:15:13,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 13:15:13,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 13:15:13,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 13:15:13,154 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 13:15:13,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 13:15:13,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 13:15:13,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 13:15:13,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 13:15:13,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 13:15:13,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:15:13,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 13:15:13,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 13:15:13,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 13:15:13,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 13:15:13,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 13:15:13,155 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 13:15:13,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 13:15:13,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 13:15:13,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 13:15:13,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 13:15:13,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 13:15:13,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 13:15:13,424 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 13:15:13,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11a-double-end.c [2021-03-24 13:15:13,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19bde90f/e5ad5df9eb0c4492a32fcd781e169de7/FLAG4415fd6a1 [2021-03-24 13:15:13,904 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 13:15:13,904 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11a-double-end.c [2021-03-24 13:15:13,904 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-24 13:15:13,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19bde90f/e5ad5df9eb0c4492a32fcd781e169de7/FLAG4415fd6a1 [2021-03-24 13:15:13,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d19bde90f/e5ad5df9eb0c4492a32fcd781e169de7 [2021-03-24 13:15:13,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 13:15:13,946 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 13:15:13,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 13:15:13,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 13:15:13,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 13:15:13,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 01:15:13" (1/1) ... [2021-03-24 13:15:13,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64462b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:13, skipping insertion in model container [2021-03-24 13:15:13,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 01:15:13" (1/1) ... [2021-03-24 13:15:13,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 13:15:13,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 13:15:14,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 13:15:14,074 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 13:15:14,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 13:15:14,091 INFO L208 MainTranslator]: Completed translation [2021-03-24 13:15:14,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14 WrapperNode [2021-03-24 13:15:14,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 13:15:14,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 13:15:14,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 13:15:14,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 13:15:14,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 13:15:14,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 13:15:14,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 13:15:14,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 13:15:14,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (1/1) ... [2021-03-24 13:15:14,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 13:15:14,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 13:15:14,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 13:15:14,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 13:15:14,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (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 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-24 13:15:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-24 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 13:15:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 13:15:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 13:15:14,209 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 13:15:14,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 13:15:14,372 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-24 13:15:14,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:15:14 BoogieIcfgContainer [2021-03-24 13:15:14,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 13:15:14,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 13:15:14,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 13:15:14,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 13:15:14,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 01:15:13" (1/3) ... [2021-03-24 13:15:14,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520234f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:15:14, skipping insertion in model container [2021-03-24 13:15:14,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 01:15:14" (2/3) ... [2021-03-24 13:15:14,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520234f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:15:14, skipping insertion in model container [2021-03-24 13:15:14,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:15:14" (3/3) ... [2021-03-24 13:15:14,378 INFO L111 eAbstractionObserver]: Analyzing ICFG 11a-double-end.c [2021-03-24 13:15:14,382 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 13:15:14,401 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 13:15:14,402 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 13:15:14,429 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,430 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,431 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,431 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,431 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,432 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,432 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,433 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:15:14,435 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 13:15:14,450 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-24 13:15:14,474 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 13:15:14,474 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 13:15:14,474 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 13:15:14,474 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 13:15:14,474 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 13:15:14,475 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 13:15:14,475 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 13:15:14,475 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 13:15:14,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 55 flow [2021-03-24 13:15:14,508 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-24 13:15:14,508 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:14,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-24 13:15:14,510 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 25 transitions, 55 flow [2021-03-24 13:15:14,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 23 places, 19 transitions, 41 flow [2021-03-24 13:15:14,522 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 13:15:14,531 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 19 transitions, 41 flow [2021-03-24 13:15:14,534 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 19 transitions, 41 flow [2021-03-24 13:15:14,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 19 transitions, 41 flow [2021-03-24 13:15:14,545 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-24 13:15:14,545 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:14,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 19 events. 0/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-24 13:15:14,547 INFO L142 LiptonReduction]: Number of co-enabled transitions 40 [2021-03-24 13:15:14,957 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-24 13:15:14,957 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-24 13:15:14,959 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 438 [2021-03-24 13:15:14,965 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-24 13:15:14,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:14,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:15:14,966 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-24 13:15:14,966 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:15:14,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:15:14,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1597126882, now seen corresponding path program 1 times [2021-03-24 13:15:14,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:15:14,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41726036] [2021-03-24 13:15:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:15:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:15:15,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:15,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:15:15,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:15,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:15:15,095 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 13:15:15,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41726036] [2021-03-24 13:15:15,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:15:15,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 13:15:15,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257079529] [2021-03-24 13:15:15,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:15:15,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:15:15,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:15:15,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:15:15,116 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 36 [2021-03-24 13:15:15,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 19 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:15:15,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:15:15,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 36 [2021-03-24 13:15:15,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:15:15,131 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-03-24 13:15:15,131 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:15:15,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 2/13 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-24 13:15:15,132 INFO L132 encePairwiseOnDemand]: 33/36 looper letters, 2 selfloop transitions, 2 changer transitions 1/9 dead transitions. [2021-03-24 13:15:15,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 9 transitions, 31 flow [2021-03-24 13:15:15,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:15:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:15:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2021-03-24 13:15:15,143 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-24 13:15:15,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 81 transitions. [2021-03-24 13:15:15,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 81 transitions. [2021-03-24 13:15:15,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:15:15,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 81 transitions. [2021-03-24 13:15:15,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 13:15:15,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 13:15:15,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 13:15:15,153 INFO L185 Difference]: Start difference. First operand has 12 places, 8 transitions, 19 flow. Second operand 3 states and 81 transitions. [2021-03-24 13:15:15,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 9 transitions, 31 flow [2021-03-24 13:15:15,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 9 transitions, 30 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:15:15,157 INFO L241 Difference]: Finished difference. Result has 14 places, 8 transitions, 26 flow [2021-03-24 13:15:15,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=26, PETRI_PLACES=14, PETRI_TRANSITIONS=8} [2021-03-24 13:15:15,159 INFO L343 CegarLoopForPetriNet]: 12 programPoint places, 2 predicate places. [2021-03-24 13:15:15,159 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 8 transitions, 26 flow [2021-03-24 13:15:15,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:15:15,159 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:15:15,159 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:15:15,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 13:15:15,160 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-24 13:15:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:15:15,160 INFO L82 PathProgramCache]: Analyzing trace with hash 2028675206, now seen corresponding path program 1 times [2021-03-24 13:15:15,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:15:15,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987836394] [2021-03-24 13:15:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:15:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:15:15,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:15,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:15:15,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:15:15,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:15:15,189 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 13:15:15,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987836394] [2021-03-24 13:15:15,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:15:15,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 13:15:15,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878778544] [2021-03-24 13:15:15,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:15:15,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:15:15,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:15:15,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:15:15,192 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 36 [2021-03-24 13:15:15,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 26 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 13:15:15,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:15:15,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 36 [2021-03-24 13:15:15,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:15:15,197 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-24 13:15:15,197 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-24 13:15:15,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 7 events. 0/7 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-24 13:15:15,198 INFO L132 encePairwiseOnDemand]: 34/36 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-03-24 13:15:15,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 7 transitions, 28 flow [2021-03-24 13:15:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:15:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:15:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2021-03-24 13:15:15,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2021-03-24 13:15:15,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 79 transitions. [2021-03-24 13:15:15,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 79 transitions. [2021-03-24 13:15:15,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:15:15,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 79 transitions. [2021-03-24 13:15:15,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 13:15:15,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 13:15:15,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 13:15:15,201 INFO L185 Difference]: Start difference. First operand has 14 places, 8 transitions, 26 flow. Second operand 3 states and 79 transitions. [2021-03-24 13:15:15,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 7 transitions, 28 flow [2021-03-24 13:15:15,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 22 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 13:15:15,202 INFO L241 Difference]: Finished difference. Result has 12 places, 0 transitions, 0 flow [2021-03-24 13:15:15,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=12, PETRI_TRANSITIONS=0} [2021-03-24 13:15:15,203 INFO L343 CegarLoopForPetriNet]: 12 programPoint places, 0 predicate places. [2021-03-24 13:15:15,203 INFO L480 AbstractCegarLoop]: Abstraction has has 12 places, 0 transitions, 0 flow [2021-03-24 13:15:15,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 13:15:15,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 13:15:15,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 01:15:15 BasicIcfg [2021-03-24 13:15:15,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 13:15:15,207 INFO L168 Benchmark]: Toolchain (without parser) took 1261.13 ms. Allocated memory is still 314.6 MB. Free memory was 277.0 MB in the beginning and 206.4 MB in the end (delta: 70.6 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:15,208 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 314.6 MB. Free memory is still 295.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:15:15,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.23 ms. Allocated memory is still 314.6 MB. Free memory was 276.9 MB in the beginning and 293.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:15,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.82 ms. Allocated memory is still 314.6 MB. Free memory was 293.5 MB in the beginning and 298.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:15,209 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 314.6 MB. Free memory was 298.6 MB in the beginning and 297.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:15,210 INFO L168 Benchmark]: RCFGBuilder took 223.33 ms. Allocated memory is still 314.6 MB. Free memory was 297.6 MB in the beginning and 284.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:15,210 INFO L168 Benchmark]: TraceAbstraction took 831.72 ms. Allocated memory is still 314.6 MB. Free memory was 284.0 MB in the beginning and 206.4 MB in the end (delta: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 16.0 GB. [2021-03-24 13:15:15,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 314.6 MB. Free memory is still 295.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 147.23 ms. Allocated memory is still 314.6 MB. Free memory was 276.9 MB in the beginning and 293.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.82 ms. Allocated memory is still 314.6 MB. Free memory was 293.5 MB in the beginning and 298.6 MB in the end (delta: -5.1 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 314.6 MB. Free memory was 298.6 MB in the beginning and 297.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 223.33 ms. Allocated memory is still 314.6 MB. Free memory was 297.6 MB in the beginning and 284.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 831.72 ms. Allocated memory is still 314.6 MB. Free memory was 284.0 MB in the beginning and 206.4 MB in the end (delta: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 423.4ms, 23 PlacesBefore, 12 PlacesAfterwards, 19 TransitionsBefore, 8 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - PositiveResult [Line: 36]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 733.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 59.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 487.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: 5.4ms SsaConstructionTime, 23.8ms SatisfiabilityAnalysisTime, 58.8ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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...