/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:30:44,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:30:44,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:30:44,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:30:44,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:30:44,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:30:44,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:30:44,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:30:44,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:30:44,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:30:44,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:30:44,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:30:44,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:30:44,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:30:44,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:30:44,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:30:44,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:30:44,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:30:44,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:30:44,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:30:44,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:30:44,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:30:44,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:30:44,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:30:44,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 20:30:44,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:30:44,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:30:44,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:30:44,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:30:44,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:30:44,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:30:44,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:30:44,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:30:44,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:30:44,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:30:44,371 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:30:44,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:30:44,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:30:44,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:30:44,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:30:44,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:30:44,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:30:44,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:30:44,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:30:44,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:30:44,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:30:44,374 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:30:44,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:30:44,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:30:44,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:30:44,645 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:30:44,646 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:30:44,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-03-15 20:30:44,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f814990c6/b140d9fd376c48bd8465e56dcc4bac95/FLAG31fa79c16 [2022-03-15 20:30:45,118 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:30:45,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest1.c [2022-03-15 20:30:45,119 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-15 20:30:45,119 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-15 20:30:45,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f814990c6/b140d9fd376c48bd8465e56dcc4bac95/FLAG31fa79c16 [2022-03-15 20:30:45,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f814990c6/b140d9fd376c48bd8465e56dcc4bac95 [2022-03-15 20:30:45,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:30:45,172 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:30:45,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:30:45,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:30:45,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:30:45,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1994f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45, skipping insertion in model container [2022-03-15 20:30:45,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:30:45,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:30:45,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:30:45,373 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:30:45,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:30:45,394 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:30:45,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45 WrapperNode [2022-03-15 20:30:45,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:30:45,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:30:45,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:30:45,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:30:45,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,422 INFO L137 Inliner]: procedures = 9, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2022-03-15 20:30:45,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:30:45,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:30:45,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:30:45,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:30:45,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:30:45,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:30:45,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:30:45,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:30:45,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (1/1) ... [2022-03-15 20:30:45,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:30:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:30:45,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 20:30:45,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 20:30:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:30:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-03-15 20:30:45,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-03-15 20:30:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:30:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:30:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 20:30:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:30:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:30:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2022-03-15 20:30:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2022-03-15 20:30:45,505 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:30:45,577 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:30:45,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:30:45,771 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:30:45,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:30:45,776 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:30:45,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:30:45 BoogieIcfgContainer [2022-03-15 20:30:45,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:30:45,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:30:45,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:30:45,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:30:45,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:30:45" (1/3) ... [2022-03-15 20:30:45,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22886333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:30:45, skipping insertion in model container [2022-03-15 20:30:45,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:30:45" (2/3) ... [2022-03-15 20:30:45,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22886333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:30:45, skipping insertion in model container [2022-03-15 20:30:45,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:30:45" (3/3) ... [2022-03-15 20:30:45,784 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest1.c [2022-03-15 20:30:45,788 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:30:45,789 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:30:45,789 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 20:30:45,789 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:30:45,814 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,814 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,815 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,815 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,815 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,815 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,815 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,816 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,816 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,816 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,816 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,817 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,817 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,817 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,817 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,817 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,818 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,818 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,818 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,819 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,819 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,819 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,819 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,819 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,819 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,820 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,820 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,820 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,820 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,821 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,821 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,821 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,821 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,822 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,822 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,822 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,825 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,826 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,826 WARN L322 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,826 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,826 WARN L322 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,829 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,829 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,829 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,830 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,830 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:30:45,833 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-15 20:30:45,891 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:30:45,898 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:30:45,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 20:30:45,921 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:30:45,928 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 51 transitions, 115 flow [2022-03-15 20:30:45,934 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 51 transitions, 115 flow [2022-03-15 20:30:45,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 51 transitions, 115 flow [2022-03-15 20:30:45,981 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2022-03-15 20:30:45,981 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-03-15 20:30:45,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 49 events. 0/49 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-03-15 20:30:45,986 INFO L116 LiptonReduction]: Number of co-enabled transitions 372 [2022-03-15 20:30:47,076 INFO L131 LiptonReduction]: Checked pairs total: 512 [2022-03-15 20:30:47,077 INFO L133 LiptonReduction]: Total number of compositions: 36 [2022-03-15 20:30:47,083 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 43 flow [2022-03-15 20:30:47,102 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 34 states have internal predecessors, (60), 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) [2022-03-15 20:30:47,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 34 states have internal predecessors, (60), 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) [2022-03-15 20:30:47,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-15 20:30:47,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:30:47,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:30:47,111 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 20:30:47,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:30:47,120 INFO L85 PathProgramCache]: Analyzing trace with hash -507789123, now seen corresponding path program 1 times [2022-03-15 20:30:47,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:30:47,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814233127] [2022-03-15 20:30:47,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:30:47,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:30:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:30:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 20:30:47,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:30:47,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814233127] [2022-03-15 20:30:47,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814233127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:30:47,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:30:47,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:30:47,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1105085190] [2022-03-15 20:30:47,307 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:30:47,310 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:30:47,322 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2022-03-15 20:30:47,322 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:30:47,342 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:30:47,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:30:47,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:30:47,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:30:47,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:30:47,367 INFO L87 Difference]: Start difference. First operand has 35 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 34 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-03-15 20:30:47,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:30:47,399 INFO L93 Difference]: Finished difference Result 34 states and 56 transitions. [2022-03-15 20:30:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:30:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-03-15 20:30:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:30:47,413 INFO L225 Difference]: With dead ends: 34 [2022-03-15 20:30:47,413 INFO L226 Difference]: Without dead ends: 26 [2022-03-15 20:30:47,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:30:47,417 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:30:47,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:30:47,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-03-15 20:30:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-03-15 20:30:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.6) internal successors, (40), 25 states have internal predecessors, (40), 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) [2022-03-15 20:30:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2022-03-15 20:30:47,445 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 40 transitions. Word has length 10 [2022-03-15 20:30:47,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:30:47,445 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-03-15 20:30:47,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-03-15 20:30:47,446 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2022-03-15 20:30:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 20:30:47,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:30:47,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 20:30:47,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:30:47,447 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 20:30:47,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:30:47,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1436282282, now seen corresponding path program 1 times [2022-03-15 20:30:47,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:30:47,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411373508] [2022-03-15 20:30:47,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:30:47,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:30:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:30:47,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 20:30:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 20:30:47,547 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 20:30:47,547 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 20:30:47,548 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-15 20:30:47,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 20:30:47,550 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 20:30:47,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:30:47,552 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-15 20:30:47,555 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:30:47,555 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:30:47,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:30:47 BasicIcfg [2022-03-15 20:30:47,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:30:47,580 INFO L158 Benchmark]: Toolchain (without parser) took 2407.35ms. Allocated memory was 186.6MB in the beginning and 266.3MB in the end (delta: 79.7MB). Free memory was 127.7MB in the beginning and 131.7MB in the end (delta: -4.1MB). Peak memory consumption was 75.1MB. Max. memory is 8.0GB. [2022-03-15 20:30:47,580 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 186.6MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:30:47,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.43ms. Allocated memory was 186.6MB in the beginning and 266.3MB in the end (delta: 79.7MB). Free memory was 127.5MB in the beginning and 234.5MB in the end (delta: -107.0MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2022-03-15 20:30:47,581 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.12ms. Allocated memory is still 266.3MB. Free memory was 234.5MB in the beginning and 232.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 20:30:47,582 INFO L158 Benchmark]: Boogie Preprocessor took 15.38ms. Allocated memory is still 266.3MB. Free memory was 232.9MB in the beginning and 231.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:30:47,582 INFO L158 Benchmark]: RCFGBuilder took 338.34ms. Allocated memory is still 266.3MB. Free memory was 231.9MB in the beginning and 221.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-15 20:30:47,582 INFO L158 Benchmark]: TraceAbstraction took 1800.04ms. Allocated memory is still 266.3MB. Free memory was 221.4MB in the beginning and 131.7MB in the end (delta: 89.7MB). Peak memory consumption was 89.1MB. Max. memory is 8.0GB. [2022-03-15 20:30:47,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 186.6MB. Free memory is still 146.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 221.43ms. Allocated memory was 186.6MB in the beginning and 266.3MB in the end (delta: 79.7MB). Free memory was 127.5MB in the beginning and 234.5MB in the end (delta: -107.0MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.12ms. Allocated memory is still 266.3MB. Free memory was 234.5MB in the beginning and 232.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.38ms. Allocated memory is still 266.3MB. Free memory was 232.9MB in the beginning and 231.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 338.34ms. Allocated memory is still 266.3MB. Free memory was 231.9MB in the beginning and 221.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1800.04ms. Allocated memory is still 266.3MB. Free memory was 221.4MB in the beginning and 131.7MB in the end (delta: 89.7MB). Peak memory consumption was 89.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 58 PlacesBefore, 22 PlacesAfterwards, 51 TransitionsBefore, 15 TransitionsAfterwards, 372 CoEnabledTransitionPairs, 4 FixpointIterations, 13 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 36 TotalNumberOfCompositions, 512 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 366, positive: 323, positive conditional: 0, positive unconditional: 323, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 206, positive: 190, positive conditional: 0, positive unconditional: 190, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 366, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 int x = 0; [L27] 0 pthread_t first_th_id; [L28] 0 pthread_t second_th_id; [L30] FCALL, FORK 0 pthread_create(&first_th_id, NULL, inc, NULL) VAL [first_th_id={2:0}, n={0:0}, pthread_create(&first_th_id, NULL, inc, NULL)=-2, second_th_id={3:0}, x=0] [L17] 1 x++ VAL [n={0:0}, n={0:0}, x=0, x++=0] [L31] FCALL, FORK 0 pthread_create(&second_th_id, NULL, dec, NULL) VAL [first_th_id={2:0}, n={0:0}, n={0:0}, n={0:0}, pthread_create(&second_th_id, NULL, dec, NULL)=-1, second_th_id={3:0}, x=0, x++=0] [L33] 0 \read(first_th_id) VAL [\read(first_th_id)=-2, first_th_id={2:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={3:0}, x=0, x++=0] [L22] 2 x-- VAL [n={0:0}, n={0:0}, n={0:0}, n={0:0}, x=0, x++=0, x--=0] [L17] 1 x++ [L18] 1 return NULL; [L33] FCALL, JOIN 1 pthread_join(first_th_id, NULL) VAL [\read(first_th_id)=-2, \result={0:0}, first_th_id={2:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={3:0}, x=1, x--=0] [L34] 0 int y = x; VAL [\result={0:0}, first_th_id={2:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={3:0}, x=1, x--=0, y=1] [L22] 2 x-- [L23] 2 return NULL; [L36] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, \result={0:0}, first_th_id={2:0}, n={0:0}, n={0:0}, n={0:0}, n={0:0}, second_th_id={3:0}, x=-1, y=1] - UnprovableResult [Line: 31]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 68 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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! [2022-03-15 20:30:47,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...