/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 18:40:50,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 18:40:50,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 18:40:50,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 18:40:50,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 18:40:50,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 18:40:50,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 18:40:50,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 18:40:50,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 18:40:50,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 18:40:50,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 18:40:50,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 18:40:50,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 18:40:50,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 18:40:50,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 18:40:50,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 18:40:50,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 18:40:50,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 18:40:50,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 18:40:50,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 18:40:50,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 18:40:50,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 18:40:50,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 18:40:50,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 18:40:50,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 18:40:50,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 18:40:50,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 18:40:50,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 18:40:50,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 18:40:50,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 18:40:50,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 18:40:50,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 18:40:50,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 18:40:50,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 18:40:50,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 18:40:50,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 18:40:50,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 18:40:50,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 18:40:50,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 18:40:50,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 18:40:50,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 18:40:50,262 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 18:40:50,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 18:40:50,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 18:40:50,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 18:40:50,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 18:40:50,283 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 18:40:50,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 18:40:50,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 18:40:50,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 18:40:50,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 18:40:50,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 18:40:50,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 18:40:50,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 18:40:50,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 18:40:50,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 18:40:50,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 18:40:50,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 18:40:50,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 18:40:50,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 18:40:50,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 18:40:50,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 18:40:50,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 18:40:50,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 18:40:50,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 18:40:50,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 18:40:50,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 18:40:50,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 18:40:50,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 18:40:50,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 18:40:50,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 18:40:50,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 18:40:50,288 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 18:40:50,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 18:40:50,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 18:40:50,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 18:40:50,580 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 18:40:50,580 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 18:40:50,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-06-11 18:40:50,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e9f2ed2/155b95a94da3407ba53e1f6574329579/FLAG9b01db8f6 [2021-06-11 18:40:51,108 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 18:40:51,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/predecessorInAtomicBlockBug.c [2021-06-11 18:40:51,109 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-11 18:40:51,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e9f2ed2/155b95a94da3407ba53e1f6574329579/FLAG9b01db8f6 [2021-06-11 18:40:51,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e9f2ed2/155b95a94da3407ba53e1f6574329579 [2021-06-11 18:40:51,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 18:40:51,529 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 18:40:51,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 18:40:51,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 18:40:51,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 18:40:51,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23202f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51, skipping insertion in model container [2021-06-11 18:40:51,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 18:40:51,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 18:40:51,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 18:40:51,703 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 18:40:51,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 18:40:51,727 INFO L208 MainTranslator]: Completed translation [2021-06-11 18:40:51,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51 WrapperNode [2021-06-11 18:40:51,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 18:40:51,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 18:40:51,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 18:40:51,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 18:40:51,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 18:40:51,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 18:40:51,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 18:40:51,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 18:40:51,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (1/1) ... [2021-06-11 18:40:51,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 18:40:51,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 18:40:51,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 18:40:51,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 18:40:51,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (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 [2021-06-11 18:40:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 18:40:51,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 18:40:51,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 18:40:51,872 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-11 18:40:51,872 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-11 18:40:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 18:40:51,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 18:40:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 18:40:51,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 18:40:51,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 18:40:52,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 18:40:52,061 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-11 18:40:52,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:40:52 BoogieIcfgContainer [2021-06-11 18:40:52,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 18:40:52,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 18:40:52,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 18:40:52,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 18:40:52,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:40:51" (1/3) ... [2021-06-11 18:40:52,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ff9221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:40:52, skipping insertion in model container [2021-06-11 18:40:52,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:40:51" (2/3) ... [2021-06-11 18:40:52,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ff9221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:40:52, skipping insertion in model container [2021-06-11 18:40:52,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:40:52" (3/3) ... [2021-06-11 18:40:52,068 INFO L111 eAbstractionObserver]: Analyzing ICFG predecessorInAtomicBlockBug.c [2021-06-11 18:40:52,085 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 18:40:52,088 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 18:40:52,088 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 18:40:52,104 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,104 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,104 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,104 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,104 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,105 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,105 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,105 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,105 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,105 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,105 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,106 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,107 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,107 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,107 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,107 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 18:40:52,110 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 18:40:52,125 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 18:40:52,142 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 18:40:52,142 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 18:40:52,142 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 18:40:52,142 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 18:40:52,142 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 18:40:52,142 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 18:40:52,143 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 18:40:52,143 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 18:40:52,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 49 flow [2021-06-11 18:40:52,184 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-06-11 18:40:52,184 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 18:40:52,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 18:40:52,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 22 transitions, 49 flow [2021-06-11 18:40:52,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2021-06-11 18:40:52,190 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:40:52,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 18 transitions, 39 flow [2021-06-11 18:40:52,205 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 18 transitions, 39 flow [2021-06-11 18:40:52,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 18 transitions, 39 flow [2021-06-11 18:40:52,212 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-06-11 18:40:52,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 18:40:52,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22 conditions, 18 events. 0/18 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 18:40:52,213 INFO L151 LiptonReduction]: Number of co-enabled transitions 28 [2021-06-11 18:40:52,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 18:40:52,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 18:40:52,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 18:40:52,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 18:40:52,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 18:40:52,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:52,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 18:40:52,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 18:40:52,949 INFO L163 LiptonReduction]: Checked pairs total: 27 [2021-06-11 18:40:52,950 INFO L165 LiptonReduction]: Total number of compositions: 13 [2021-06-11 18:40:52,952 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 763 [2021-06-11 18:40:52,964 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-06-11 18:40:52,964 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 18:40:52,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:40:52,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-06-11 18:40:52,965 INFO L428 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:40:52,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:40:52,970 INFO L82 PathProgramCache]: Analyzing trace with hash 91942, now seen corresponding path program 1 times [2021-06-11 18:40:52,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:40:52,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180951690] [2021-06-11 18:40:52,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:40:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 18:40:53,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 18:40:53,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 18:40:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 18:40:53,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180951690] [2021-06-11 18:40:53,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 18:40:53,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 18:40:53,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359406079] [2021-06-11 18:40:53,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 18:40:53,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 18:40:53,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 18:40:53,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 18:40:53,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 35 [2021-06-11 18:40:53,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 9 places, 5 transitions, 13 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-11 18:40:53,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 18:40:53,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 35 [2021-06-11 18:40:53,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 18:40:53,110 INFO L129 PetriNetUnfolder]: 1/7 cut-off events. [2021-06-11 18:40:53,111 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 18:40:53,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 7 events. 1/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 10. Up to 6 conditions per place. [2021-06-11 18:40:53,112 INFO L132 encePairwiseOnDemand]: 32/35 looper letters, 2 selfloop transitions, 2 changer transitions 0/5 dead transitions. [2021-06-11 18:40:53,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 5 transitions, 21 flow [2021-06-11 18:40:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 18:40:53,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 18:40:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2021-06-11 18:40:53,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2021-06-11 18:40:53,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 68 transitions. [2021-06-11 18:40:53,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 68 transitions. [2021-06-11 18:40:53,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 18:40:53,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 68 transitions. [2021-06-11 18:40:53,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-06-11 18:40:53,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-06-11 18:40:53,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-06-11 18:40:53,132 INFO L185 Difference]: Start difference. First operand has 9 places, 5 transitions, 13 flow. Second operand 3 states and 68 transitions. [2021-06-11 18:40:53,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 5 transitions, 21 flow [2021-06-11 18:40:53,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 5 transitions, 20 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 18:40:53,135 INFO L241 Difference]: Finished difference. Result has 11 places, 5 transitions, 20 flow [2021-06-11 18:40:53,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=11, PETRI_TRANSITIONS=5} [2021-06-11 18:40:53,137 INFO L343 CegarLoopForPetriNet]: 9 programPoint places, 2 predicate places. [2021-06-11 18:40:53,137 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 18:40:53,138 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 5 transitions, 20 flow [2021-06-11 18:40:53,138 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 11 places, 5 transitions, 20 flow [2021-06-11 18:40:53,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 11 places, 5 transitions, 20 flow [2021-06-11 18:40:53,140 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-06-11 18:40:53,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 18:40:53,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 5 events. 0/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-11 18:40:53,141 INFO L151 LiptonReduction]: Number of co-enabled transitions 2 [2021-06-11 18:40:53,141 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 18:40:53,142 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 18:40:53,142 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-06-11 18:40:53,143 INFO L480 AbstractCegarLoop]: Abstraction has has 11 places, 5 transitions, 20 flow [2021-06-11 18:40:53,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-06-11 18:40:53,143 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 18:40:53,143 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-06-11 18:40:53,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 18:40:53,144 INFO L428 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT]=== [2021-06-11 18:40:53,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 18:40:53,144 INFO L82 PathProgramCache]: Analyzing trace with hash 2850074, now seen corresponding path program 1 times [2021-06-11 18:40:53,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 18:40:53,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761972843] [2021-06-11 18:40:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 18:40:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 18:40:53,156 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 18:40:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-11 18:40:53,166 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-11 18:40:53,178 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-11 18:40:53,178 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-06-11 18:40:53,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 18:40:53,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:40:53 BasicIcfg [2021-06-11 18:40:53,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 18:40:53,194 INFO L168 Benchmark]: Toolchain (without parser) took 1665.54 ms. Allocated memory is still 339.7 MB. Free memory was 302.5 MB in the beginning and 200.0 MB in the end (delta: 102.5 MB). Peak memory consumption was 103.6 MB. Max. memory is 16.0 GB. [2021-06-11 18:40:53,195 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 339.7 MB. Free memory was 321.0 MB in the beginning and 320.9 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 18:40:53,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.41 ms. Allocated memory is still 339.7 MB. Free memory was 302.4 MB in the beginning and 318.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-11 18:40:53,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.88 ms. Allocated memory is still 339.7 MB. Free memory was 318.3 MB in the beginning and 322.7 MB in the end (delta: -4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-11 18:40:53,196 INFO L168 Benchmark]: Boogie Preprocessor took 30.63 ms. Allocated memory is still 339.7 MB. Free memory was 322.7 MB in the beginning and 322.7 MB in the end (delta: 2.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 18:40:53,197 INFO L168 Benchmark]: RCFGBuilder took 260.64 ms. Allocated memory is still 339.7 MB. Free memory was 322.7 MB in the beginning and 310.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-11 18:40:53,197 INFO L168 Benchmark]: TraceAbstraction took 1130.29 ms. Allocated memory is still 339.7 MB. Free memory was 309.0 MB in the beginning and 200.0 MB in the end (delta: 109.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 16.0 GB. [2021-06-11 18:40:53,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 339.7 MB. Free memory was 321.0 MB in the beginning and 320.9 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 198.41 ms. Allocated memory is still 339.7 MB. Free memory was 302.4 MB in the beginning and 318.3 MB in the end (delta: -15.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.88 ms. Allocated memory is still 339.7 MB. Free memory was 318.3 MB in the beginning and 322.7 MB in the end (delta: -4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.63 ms. Allocated memory is still 339.7 MB. Free memory was 322.7 MB in the beginning and 322.7 MB in the end (delta: 2.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 260.64 ms. Allocated memory is still 339.7 MB. Free memory was 322.7 MB in the beginning and 310.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1130.29 ms. Allocated memory is still 339.7 MB. Free memory was 309.0 MB in the beginning and 200.0 MB in the end (delta: 109.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 744.5ms, 22 PlacesBefore, 9 PlacesAfterwards, 18 TransitionsBefore, 5 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 5 FixpointIterations, 7 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 26, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4ms, 11 PlacesBefore, 11 PlacesAfterwards, 5 TransitionsBefore, 5 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Eliminated conditions: 0 - CounterExampleResult [Line: 19]: assertion can be violated assertion can be violated We found a FailurePath: [L16] 0 int x = 0; [L24] 0 pthread_t threadId; [L25] FCALL, FORK 0 pthread_create(&threadId, NULL, & foo, NULL) VAL [arg={0:0}, x=0] [L27] 0 x = x - 1 VAL [arg={0:0}, x=-1] [L19] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1040.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 49.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 819.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, InterpolantAutomatonStates: 3, 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: 4.4ms SsaConstructionTime, 20.3ms SatisfiabilityAnalysisTime, 25.6ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...