/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationInline.xml -s ../../../trunk/examples/settings/ai/thread-modular/svcomp-Reach-32bit-Automizer_Default+AIv2_OCT_FLOW_SENSITIVE_FILTERED.epf -i ../../../trunk/examples/concurrent/bpl/unbounded/fork_loop_mutex.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:26:21,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:26:21,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:26:21,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:26:21,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:26:21,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:26:21,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:26:21,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:26:21,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:26:21,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:26:21,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:26:21,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:26:21,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:26:21,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:26:21,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:26:21,225 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:26:21,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:26:21,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:26:21,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:26:21,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:26:21,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:26:21,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:26:21,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:26:21,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:26:21,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-21 14:26:21,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:26:21,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:26:21,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:26:21,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:26:21,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:26:21,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:26:21,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:26:21,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:26:21,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:26:21,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:26:21,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:26:21,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/thread-modular/svcomp-Reach-32bit-Automizer_Default+AIv2_OCT_FLOW_SENSITIVE_FILTERED.epf [2022-09-21 14:26:21,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:26:21,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:26:21,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:26:21,285 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:26:21,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:26:21,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:26:21,286 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:26:21,286 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:26:21,286 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:26:21,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:26:21,286 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:26:21,286 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:26:21,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:26:21,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:26:21,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:26:21,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:26:21,289 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:26:21,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:26:21,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:21,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:26:21,289 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:26:21,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:26:21,290 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:26:21,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:26:21,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:26:21,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:26:21,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:26:21,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:26:21,539 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:26:21,547 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:26:21,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/unbounded/fork_loop_mutex.bpl [2022-09-21 14:26:21,549 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/unbounded/fork_loop_mutex.bpl' [2022-09-21 14:26:21,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:26:21,566 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:26:21,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:21,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:26:21,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:26:21,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,588 INFO L138 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:26:21,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:26:21,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:26:21,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:26:21,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:26:21,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:26:21,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:26:21,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:26:21,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:26:21,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:26:21,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:21,632 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) [2022-09-21 14:26:21,658 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 [2022-09-21 14:26:21,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:26:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:26:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:26:21,678 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2022-09-21 14:26:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-09-21 14:26:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-09-21 14:26:21,679 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-21 14:26:21,718 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:26:21,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:26:21,812 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:26:21,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:26:21,820 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-21 14:26:21,823 INFO L202 PluginConnector]: Adding new model fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:21 BoogieIcfgContainer [2022-09-21 14:26:21,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:26:21,825 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:26:21,825 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:26:21,825 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:26:21,827 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "fork_loop_mutex.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:26:21" (1/1) ... [2022-09-21 14:26:21,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:26:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:26:21,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-21 14:26:21,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-21 14:26:21,946 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:21,948 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:26:21,948 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:21,993 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,004 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:26:22,004 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [c] [2022-09-21 14:26:22,004 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:26:22,006 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,006 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:22,006 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread with variables: [c] [2022-09-21 14:26:22,008 INFO L631 ngineConcurrentUtils]: Start checking 3 possible combinations. [2022-09-21 14:26:22,008 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/3 [2022-09-21 14:26:22,013 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/3 [2022-09-21 14:26:22,016 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/3 [2022-09-21 14:26:22,019 INFO L651 ngineConcurrentUtils]: Number of combinations: 3 [2022-09-21 14:26:22,027 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,027 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 2 [2022-09-21 14:26:22,028 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,051 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,067 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 3 [2022-09-21 14:26:22,067 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,068 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:22,069 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,070 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 2 [2022-09-21 14:26:22,070 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,086 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,100 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 4 [2022-09-21 14:26:22,100 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,101 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:22,102 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,103 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 2 [2022-09-21 14:26:22,103 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,111 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,118 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 5 [2022-09-21 14:26:22,118 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,119 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:22,120 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,121 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 2 [2022-09-21 14:26:22,121 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,129 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,135 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 6 [2022-09-21 14:26:22,136 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,136 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:26:22,137 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:26:22,137 INFO L396 ointEngineConcurrent]: Reduced size from 3 to 1 [2022-09-21 14:26:22,137 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:26:22,142 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:26:22,152 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:26:22,152 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:26:22,154 INFO L158 Benchmark]: Toolchain (without parser) took 586.85ms. Allocated memory was 170.9MB in the beginning and 255.9MB in the end (delta: 84.9MB). Free memory was 124.8MB in the beginning and 223.8MB in the end (delta: -99.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:22,154 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 170.9MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:22,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.10ms. Allocated memory is still 170.9MB. Free memory was 124.6MB in the beginning and 123.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-21 14:26:22,156 INFO L158 Benchmark]: Boogie Preprocessor took 11.15ms. Allocated memory is still 170.9MB. Free memory was 123.1MB in the beginning and 122.2MB in the end (delta: 920.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:26:22,156 INFO L158 Benchmark]: RCFGBuilder took 219.96ms. Allocated memory is still 170.9MB. Free memory was 122.2MB in the beginning and 114.2MB in the end (delta: 8.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-09-21 14:26:22,157 INFO L158 Benchmark]: Abstract Interpretation took 327.15ms. Allocated memory was 170.9MB in the beginning and 255.9MB in the end (delta: 84.9MB). Free memory was 114.0MB in the beginning and 223.8MB in the end (delta: -109.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:26:22,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16ms. Allocated memory is still 170.9MB. Free memory is still 125.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.10ms. Allocated memory is still 170.9MB. Free memory was 124.6MB in the beginning and 123.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.15ms. Allocated memory is still 170.9MB. Free memory was 123.1MB in the beginning and 122.2MB in the end (delta: 920.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 219.96ms. Allocated memory is still 170.9MB. Free memory was 122.2MB in the beginning and 114.2MB in the end (delta: 8.0MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Abstract Interpretation took 327.15ms. Allocated memory was 170.9MB in the beginning and 255.9MB in the end (delta: 84.9MB). Free memory was 114.0MB in the beginning and 223.8MB in the end (delta: -109.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 17]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L16] c := c + 1; [L17] assert c != 0; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:26:22,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-21 14:26:22,388 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...