/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/atomic/13-loop-after.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:31:56,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:31:56,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:31:56,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:31:56,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:31:56,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:31:56,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:31:56,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:31:56,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:31:56,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:31:56,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:31:56,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:31:56,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:31:56,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:31:56,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:31:56,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:31:56,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:31:56,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:31:56,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:31:56,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:31:56,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:31:56,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:31:56,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:31:56,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:31:56,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 20:31:56,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 20:31:56,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 20:31:56,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 20:31:56,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 20:31:56,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 20:31:56,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 20:31:56,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 20:31:56,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 20:31:56,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:31:56,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:31:56,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:31:56,142 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 20:31:56,165 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:31:56,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:31:56,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:31:56,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:31:56,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:31:56,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:31:56,167 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:31:56,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:31:56,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:31:56,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:31:56,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:31:56,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:31:56,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:31:56,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:31:56,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:31:56,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:31:56,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:31:56,170 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:31:56,170 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:31:56,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:31:56,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:31:56,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:31:56,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:31:56,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:31:56,342 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 20:31:56,342 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 20:31:56,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/13-loop-after.c [2022-03-15 20:31:56,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8225d8fa/d37219a2af0849ab81f5485ab4568794/FLAG28378684a [2022-03-15 20:31:56,677 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 20:31:56,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/13-loop-after.c [2022-03-15 20:31:56,677 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-15 20:31:56,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8225d8fa/d37219a2af0849ab81f5485ab4568794/FLAG28378684a [2022-03-15 20:31:57,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8225d8fa/d37219a2af0849ab81f5485ab4568794 [2022-03-15 20:31:57,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:31:57,117 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 20:31:57,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 20:31:57,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 20:31:57,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 20:31:57,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1029c47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57, skipping insertion in model container [2022-03-15 20:31:57,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 20:31:57,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 20:31:57,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:31:57,262 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 20:31:57,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 20:31:57,277 INFO L208 MainTranslator]: Completed translation [2022-03-15 20:31:57,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57 WrapperNode [2022-03-15 20:31:57,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 20:31:57,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:31:57,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:31:57,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:31:57,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,297 INFO L137 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-03-15 20:31:57,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:31:57,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:31:57,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:31:57,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:31:57,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:31:57,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:31:57,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:31:57,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:31:57,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (1/1) ... [2022-03-15 20:31:57,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:31:57,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:31:57,329 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 20:31:57,336 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 20:31:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 20:31:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 20:31:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 20:31:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-15 20:31:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-15 20:31:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:31:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:31:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 20:31:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 20:31:57,361 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 20:31:57,407 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:31:57,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:31:57,497 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:31:57,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:31:57,509 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-15 20:31:57,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:31:57 BoogieIcfgContainer [2022-03-15 20:31:57,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:31:57,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:31:57,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:31:57,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:31:57,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 08:31:57" (1/3) ... [2022-03-15 20:31:57,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2926c070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:31:57, skipping insertion in model container [2022-03-15 20:31:57,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 08:31:57" (2/3) ... [2022-03-15 20:31:57,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2926c070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:31:57, skipping insertion in model container [2022-03-15 20:31:57,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:31:57" (3/3) ... [2022-03-15 20:31:57,516 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-loop-after.c [2022-03-15 20:31:57,519 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:31:57,520 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:31:57,520 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 20:31:57,520 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:31:57,542 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,542 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,542 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,543 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,543 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,543 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,543 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,543 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,544 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,544 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,544 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,549 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,552 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,553 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,553 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,553 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 20:31:57,561 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 20:31:57,592 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:31:57,600 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 20:31:57,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 20:31:57,609 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:31:57,615 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 36 transitions, 77 flow [2022-03-15 20:31:57,617 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 36 transitions, 77 flow [2022-03-15 20:31:57,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 36 transitions, 77 flow [2022-03-15 20:31:57,638 INFO L129 PetriNetUnfolder]: 2/35 cut-off events. [2022-03-15 20:31:57,641 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-03-15 20:31:57,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 20. Up to 2 conditions per place. [2022-03-15 20:31:57,644 INFO L116 LiptonReduction]: Number of co-enabled transitions 168 [2022-03-15 20:31:58,199 INFO L131 LiptonReduction]: Checked pairs total: 179 [2022-03-15 20:31:58,199 INFO L133 LiptonReduction]: Total number of compositions: 28 [2022-03-15 20:31:58,214 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 9 transitions, 23 flow [2022-03-15 20:31:58,221 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 20:31:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 20:31:58,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-03-15 20:31:58,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:31:58,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-03-15 20:31:58,226 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-03-15 20:31:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:31:58,235 INFO L85 PathProgramCache]: Analyzing trace with hash 4528410, now seen corresponding path program 1 times [2022-03-15 20:31:58,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:31:58,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179128645] [2022-03-15 20:31:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:31:58,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:31:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:31:58,384 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 20:31:58,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:31:58,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179128645] [2022-03-15 20:31:58,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179128645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:31:58,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:31:58,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:31:58,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [637548861] [2022-03-15 20:31:58,387 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:31:58,389 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:31:58,395 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2022-03-15 20:31:58,395 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:31:58,399 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:31:58,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:31:58,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:31:58,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:31:58,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:31:58,421 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:31:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:31:58,437 INFO L93 Difference]: Finished difference Result 8 states and 11 transitions. [2022-03-15 20:31:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:31:58,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-03-15 20:31:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:31:58,443 INFO L225 Difference]: With dead ends: 8 [2022-03-15 20:31:58,444 INFO L226 Difference]: Without dead ends: 6 [2022-03-15 20:31:58,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:31:58,448 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:31:58,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:31:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-03-15 20:31:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-03-15 20:31:58,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 20:31:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-03-15 20:31:58,468 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 4 [2022-03-15 20:31:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:31:58,468 INFO L470 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-03-15 20:31:58,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 20:31:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2022-03-15 20:31:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-03-15 20:31:58,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 20:31:58,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-03-15 20:31:58,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 20:31:58,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONASSERT === [fooErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, fooErr0ASSERT_VIOLATIONASSERT] === [2022-03-15 20:31:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 20:31:58,472 INFO L85 PathProgramCache]: Analyzing trace with hash 140381601, now seen corresponding path program 1 times [2022-03-15 20:31:58,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 20:31:58,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771470422] [2022-03-15 20:31:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 20:31:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 20:31:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 20:31:58,495 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 20:31:58,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 20:31:58,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771470422] [2022-03-15 20:31:58,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771470422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 20:31:58,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 20:31:58,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 20:31:58,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1005505553] [2022-03-15 20:31:58,496 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 20:31:58,496 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 20:31:58,497 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2022-03-15 20:31:58,497 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 20:31:58,498 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 20:31:58,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 20:31:58,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 20:31:58,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 20:31:58,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 20:31:58,499 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 20:31:58,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 20:31:58,505 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2022-03-15 20:31:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 20:31:58,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-03-15 20:31:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 20:31:58,505 INFO L225 Difference]: With dead ends: 5 [2022-03-15 20:31:58,506 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 20:31:58,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:31:58,507 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 20:31:58,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 20:31:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 20:31:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 20:31:58,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 20:31:58,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 20:31:58,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-03-15 20:31:58,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 20:31:58,508 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 20:31:58,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 20:31:58,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 20:31:58,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 20:31:58,510 INFO L764 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-15 20:31:58,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 20:31:58,511 INFO L764 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2022-03-15 20:31:58,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 20:31:58,513 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-15 20:31:58,515 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 20:31:58,515 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 20:31:58,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 08:31:58 BasicIcfg [2022-03-15 20:31:58,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 20:31:58,518 INFO L158 Benchmark]: Toolchain (without parser) took 1401.38ms. Allocated memory was 169.9MB in the beginning and 204.5MB in the end (delta: 34.6MB). Free memory was 143.7MB in the beginning and 162.4MB in the end (delta: -18.8MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2022-03-15 20:31:58,518 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 169.9MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 20:31:58,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.45ms. Allocated memory is still 169.9MB. Free memory was 143.4MB in the beginning and 143.9MB in the end (delta: -467.1kB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-03-15 20:31:58,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.75ms. Allocated memory is still 169.9MB. Free memory was 143.9MB in the beginning and 142.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 20:31:58,519 INFO L158 Benchmark]: Boogie Preprocessor took 11.98ms. Allocated memory is still 169.9MB. Free memory was 142.5MB in the beginning and 141.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 20:31:58,519 INFO L158 Benchmark]: RCFGBuilder took 200.54ms. Allocated memory is still 169.9MB. Free memory was 141.5MB in the beginning and 131.3MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 20:31:58,519 INFO L158 Benchmark]: TraceAbstraction took 1005.59ms. Allocated memory was 169.9MB in the beginning and 204.5MB in the end (delta: 34.6MB). Free memory was 131.0MB in the beginning and 162.4MB in the end (delta: -31.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-15 20:31:58,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 169.9MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 160.45ms. Allocated memory is still 169.9MB. Free memory was 143.4MB in the beginning and 143.9MB in the end (delta: -467.1kB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.75ms. Allocated memory is still 169.9MB. Free memory was 143.9MB in the beginning and 142.5MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.98ms. Allocated memory is still 169.9MB. Free memory was 142.5MB in the beginning and 141.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 200.54ms. Allocated memory is still 169.9MB. Free memory was 141.5MB in the beginning and 131.3MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1005.59ms. Allocated memory was 169.9MB in the beginning and 204.5MB in the end (delta: 34.6MB). Free memory was 131.0MB in the beginning and 162.4MB in the end (delta: -31.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6s, 38 PlacesBefore, 12 PlacesAfterwards, 36 TransitionsBefore, 9 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 28 TotalNumberOfCompositions, 179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 89, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 89, unknown conditional: 0, unknown unconditional: 89] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - 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 - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 20:31:58,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...