/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/weaver-benchmarks/generated/chl/simpl-str-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.absint-concur-c9b613c-m [2022-09-21 14:28:12,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-21 14:28:12,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-21 14:28:12,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-21 14:28:12,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-21 14:28:12,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-21 14:28:12,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-21 14:28:12,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-21 14:28:12,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-21 14:28:12,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-21 14:28:12,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-21 14:28:12,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-21 14:28:12,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-21 14:28:12,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-21 14:28:12,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-21 14:28:12,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-21 14:28:12,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-21 14:28:12,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-21 14:28:12,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-21 14:28:12,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-21 14:28:12,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-21 14:28:12,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-21 14:28:12,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-21 14:28:12,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-21 14:28:12,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-21 14:28:12,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-21 14:28:12,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-21 14:28:12,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-21 14:28:12,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-21 14:28:12,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-21 14:28:12,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-21 14:28:12,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-21 14:28:12,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-21 14:28:12,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-21 14:28:12,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-21 14:28:12,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-21 14:28:12,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-21 14:28:12,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-21 14:28:12,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-21 14:28:12,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-21 14:28:12,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-21 14:28:12,254 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 14:28:12,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-21 14:28:12,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-21 14:28:12,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-21 14:28:12,280 INFO L138 SettingsManager]: * Log level for plugins=info [2022-09-21 14:28:12,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-21 14:28:12,281 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-21 14:28:12,281 INFO L138 SettingsManager]: * User list type=DISABLED [2022-09-21 14:28:12,281 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2022-09-21 14:28:12,281 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2022-09-21 14:28:12,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * Computation of Interferences for Sequential Abstract Interpretation of each procedure=FLOW_SENSITIVE_FILTERED [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * Abstract domain=OctagonDomain [2022-09-21 14:28:12,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-21 14:28:12,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-21 14:28:12,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:28:12,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-09-21 14:28:12,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-21 14:28:12,284 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2022-09-21 14:28:12,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-21 14:28:12,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-21 14:28:12,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-21 14:28:12,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-21 14:28:12,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-21 14:28:12,481 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-21 14:28:12,482 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-21 14:28:12,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/simpl-str-subst.wvr.bpl [2022-09-21 14:28:12,484 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/simpl-str-subst.wvr.bpl' [2022-09-21 14:28:12,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-21 14:28:12,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-21 14:28:12,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-21 14:28:12,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-21 14:28:12,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-21 14:28:12,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,535 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-21 14:28:12,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-21 14:28:12,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-21 14:28:12,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-21 14:28:12,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-21 14:28:12,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-21 14:28:12,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-21 14:28:12,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-21 14:28:12,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-21 14:28:12,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-21 14:28:12,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:28:12,569 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 14:28:12,584 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 14:28:12,595 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-21 14:28:12,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-21 14:28:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-21 14:28:12,596 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-21 14:28:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-21 14:28:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-21 14:28:12,596 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-21 14:28:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-21 14:28:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-21 14:28:12,596 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-09-21 14:28:12,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-21 14:28:12,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-21 14:28:12,597 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 14:28:12,628 INFO L234 CfgBuilder]: Building ICFG [2022-09-21 14:28:12,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-21 14:28:12,724 INFO L275 CfgBuilder]: Performing block encoding [2022-09-21 14:28:12,731 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-21 14:28:12,731 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-21 14:28:12,738 INFO L202 PluginConnector]: Adding new model simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:28:12 BoogieIcfgContainer [2022-09-21 14:28:12,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-21 14:28:12,742 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2022-09-21 14:28:12,743 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2022-09-21 14:28:12,743 INFO L275 PluginConnector]: Abstract Interpretation initialized [2022-09-21 14:28:12,752 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "simpl-str-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 02:28:12" (1/1) ... [2022-09-21 14:28:12,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-21 14:28:12,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-21 14:28:12,812 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 14:28:12,813 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 14:28:12,841 INFO L129 ointEngineConcurrent]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:28:12,842 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 1 [2022-09-21 14:28:12,843 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:28:12,863 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:28:12,878 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:28:12,887 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:28:12,892 INFO L155 ointEngineConcurrent]: Starting outer Fixpoint iteration number 2 [2022-09-21 14:28:12,893 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for ULTIMATE.start with variables: [result_8, to_int_1, to_int_5, result_6, result_7, to_int_3, length_2, length_0, length_4] [2022-09-21 14:28:12,894 INFO L631 ngineConcurrentUtils]: Start checking 8 possible combinations. [2022-09-21 14:28:12,894 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/8 [2022-09-21 14:28:12,904 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:28:12,904 INFO L642 ngineConcurrentUtils]: Filter Iteration 2/8 [2022-09-21 14:28:12,908 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:28:12,908 INFO L642 ngineConcurrentUtils]: Filter Iteration 3/8 [2022-09-21 14:28:12,915 INFO L642 ngineConcurrentUtils]: Filter Iteration 4/8 [2022-09-21 14:28:12,926 INFO L642 ngineConcurrentUtils]: Filter Iteration 5/8 [2022-09-21 14:28:12,930 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:28:12,930 INFO L642 ngineConcurrentUtils]: Filter Iteration 6/8 [2022-09-21 14:28:12,937 INFO L642 ngineConcurrentUtils]: Filter Iteration 7/8 [2022-09-21 14:28:12,947 INFO L642 ngineConcurrentUtils]: Filter Iteration 8/8 [2022-09-21 14:28:12,958 INFO L651 ngineConcurrentUtils]: Number of combinations: 5 [2022-09-21 14:28:12,960 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:28:12,960 INFO L396 ointEngineConcurrent]: Reduced size from 5 to 1 [2022-09-21 14:28:12,961 INFO L115 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2022-09-21 14:28:12,976 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread1 with variables: [result_8, to_int_1, to_int_5, result_6, result_7, to_int_3, length_2, length_0, length_4] [2022-09-21 14:28:12,976 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:28:12,976 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:28:12,976 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:28:12,976 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:28:12,976 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:28:12,976 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:28:12,976 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread2 with variables: [result_8, to_int_1, to_int_5, result_6, result_7, to_int_3, length_2, length_0, length_4] [2022-09-21 14:28:12,976 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:28:12,976 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:28:12,976 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:28:12,977 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:28:12,977 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:28:12,977 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:28:12,977 INFO L596 ngineConcurrentUtils]: Cross Product Computation started for thread3 with variables: [result_8, to_int_1, to_int_5, result_6, result_7, to_int_3, length_2, length_0, length_4] [2022-09-21 14:28:12,977 INFO L631 ngineConcurrentUtils]: Start checking 1 possible combinations. [2022-09-21 14:28:12,977 INFO L642 ngineConcurrentUtils]: Filter Iteration 1/1 [2022-09-21 14:28:12,977 INFO L646 ngineConcurrentUtils]: contradiction [2022-09-21 14:28:12,977 INFO L651 ngineConcurrentUtils]: Number of combinations: 0 [2022-09-21 14:28:12,977 INFO L379 ointEngineConcurrent]: Reducing to supersets [2022-09-21 14:28:12,977 INFO L396 ointEngineConcurrent]: Reduced size from 0 to 0 [2022-09-21 14:28:12,980 INFO L320 AbstractInterpreter]: Some error location(s) were reachable [2022-09-21 14:28:12,987 INFO L329 AbstractInterpreter]: No benchmarks available [2022-09-21 14:28:12,987 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2022-09-21 14:28:12,988 INFO L158 Benchmark]: Toolchain (without parser) took 480.81ms. Allocated memory is still 173.0MB. Free memory was 127.9MB in the beginning and 134.8MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:28:12,989 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 173.0MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:28:12,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.40ms. Allocated memory is still 173.0MB. Free memory was 127.9MB in the beginning and 126.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-21 14:28:12,990 INFO L158 Benchmark]: Boogie Preprocessor took 9.08ms. Allocated memory is still 173.0MB. Free memory was 126.2MB in the beginning and 125.3MB in the end (delta: 907.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-21 14:28:12,991 INFO L158 Benchmark]: RCFGBuilder took 193.34ms. Allocated memory is still 173.0MB. Free memory was 125.3MB in the beginning and 116.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-21 14:28:12,991 INFO L158 Benchmark]: Abstract Interpretation took 244.71ms. Allocated memory is still 173.0MB. Free memory was 116.3MB in the beginning and 134.8MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-21 14:28:12,994 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 0.11ms. Allocated memory is still 173.0MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.40ms. Allocated memory is still 173.0MB. Free memory was 127.9MB in the beginning and 126.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.08ms. Allocated memory is still 173.0MB. Free memory was 126.2MB in the beginning and 125.3MB in the end (delta: 907.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.34ms. Allocated memory is still 173.0MB. Free memory was 125.3MB in the beginning and 116.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Abstract Interpretation took 244.71ms. Allocated memory is still 173.0MB. Free memory was 116.3MB in the beginning and 134.8MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 47]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: abstract domain could reach this error location. Possible FailurePath: [L40] FORK 0 fork 1 thread1(); [L41] FORK 0 fork 2, 2 thread2(); [L42] FORK 0 fork 3, 3, 3 thread3(); [L43] JOIN 0 join 1; [L44] JOIN 0 join 2, 2; [L45] JOIN 0 join 3, 3, 3; [L46] 0 assume !(result_6 == 0 ==> (result_7 > 0) == (result_8 > 0) && (result_7 < 0) == (result_8 < 0)); [L47] 0 assert false; RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-09-21 14:28:13,019 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 14:28:13,215 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...