/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 04:57:31,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 04:57:31,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 04:57:31,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 04:57:31,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 04:57:31,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 04:57:31,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 04:57:31,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 04:57:31,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 04:57:31,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 04:57:31,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 04:57:31,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 04:57:31,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 04:57:31,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 04:57:31,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 04:57:31,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 04:57:31,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 04:57:31,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 04:57:31,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 04:57:31,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 04:57:31,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 04:57:31,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 04:57:31,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 04:57:31,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 04:57:31,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 04:57:31,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 04:57:31,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 04:57:31,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 04:57:31,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 04:57:31,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 04:57:31,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 04:57:31,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 04:57:31,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 04:57:31,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 04:57:31,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 04:57:31,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 04:57:31,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 04:57:31,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 04:57:31,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 04:57:31,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 04:57:31,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 04:57:31,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-04 04:57:31,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 04:57:31,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 04:57:31,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 04:57:31,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 04:57:31,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 04:57:31,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 04:57:31,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 04:57:31,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 04:57:31,432 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 04:57:31,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 04:57:31,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 04:57:31,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 04:57:31,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 04:57:31,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 04:57:31,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 04:57:31,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 04:57:31,436 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 04:57:31,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 04:57:31,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 04:57:31,436 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 04:57:31,436 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 04:57:31,436 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 04:57:31,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 04:57:31,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 04:57:31,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 04:57:31,650 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 04:57:31,650 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 04:57:31,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl [2022-03-04 04:57:31,652 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/concurrent_mult.bpl' [2022-03-04 04:57:31,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 04:57:31,671 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 04:57:31,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 04:57:31,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 04:57:31,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 04:57:31,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,689 INFO L137 Inliner]: procedures = 2, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 04:57:31,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 04:57:31,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 04:57:31,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 04:57:31,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 04:57:31,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 04:57:31,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 04:57:31,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 04:57:31,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 04:57:31,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/1) ... [2022-03-04 04:57:31,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 04:57:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:31,741 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) [2022-03-04 04:57:31,746 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 [2022-03-04 04:57:31,769 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mult given in one single declaration [2022-03-04 04:57:31,769 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-03-04 04:57:31,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-03-04 04:57:31,769 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 04:57:31,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 04:57:31,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 04:57:31,770 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 04:57:31,799 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 04:57:31,800 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 04:57:31,859 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 04:57:31,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 04:57:31,864 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 04:57:31,865 INFO L202 PluginConnector]: Adding new model concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:57:31 BoogieIcfgContainer [2022-03-04 04:57:31,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 04:57:31,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 04:57:31,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 04:57:31,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 04:57:31,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:57:31" (1/2) ... [2022-03-04 04:57:31,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f13d4b and model type concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:57:31, skipping insertion in model container [2022-03-04 04:57:31,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:57:31" (2/2) ... [2022-03-04 04:57:31,872 INFO L111 eAbstractionObserver]: Analyzing ICFG concurrent_mult.bpl [2022-03-04 04:57:31,875 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 04:57:31,875 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 04:57:31,875 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 04:57:31,875 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 04:57:31,889 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,890 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,890 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,890 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,890 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,890 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,891 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,891 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,891 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,891 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,891 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,892 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,893 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,893 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,893 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,893 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,893 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,894 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,895 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,895 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,895 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,895 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_a not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,895 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,895 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,896 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,896 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_b not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,896 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,896 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,896 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,896 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,897 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,897 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,907 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,907 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,912 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_z not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,913 WARN L322 ript$VariableManager]: TermVariabe multThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 04:57:31,916 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 04:57:31,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 04:57:31,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:31,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 04:57:31,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 04:57:31,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 04:57:31,992 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-04 04:57:31,992 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 04:57:32,030 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 162 transitions and produced 115 states. [2022-03-04 04:57:32,032 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 04:57:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:57:32,036 INFO L85 PathProgramCache]: Analyzing trace with hash 231261290, now seen corresponding path program 1 times [2022-03-04 04:57:32,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:57:32,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047933641] [2022-03-04 04:57:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:57:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:57:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:33,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:57:33,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047933641] [2022-03-04 04:57:33,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047933641] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 04:57:33,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876946147] [2022-03-04 04:57:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:33,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 04:57:33,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:33,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 04:57:33,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 04:57:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:57:33,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-04 04:57:33,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 04:57:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:34,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 04:57:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:35,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876946147] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 04:57:35,910 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 04:57:35,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 70 [2022-03-04 04:57:35,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673037711] [2022-03-04 04:57:35,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 04:57:35,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-03-04 04:57:35,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:57:35,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-03-04 04:57:35,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=4636, Unknown=0, NotChecked=0, Total=4970 [2022-03-04 04:57:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:35,939 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:57:35,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 1.3) internal successors, (91), 71 states have internal predecessors, (91), 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) [2022-03-04 04:57:35,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:38,701 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 102 transitions and produced 97 states. [2022-03-04 04:57:38,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 04:57:38,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 04:57:38,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 04:57:38,918 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 04:57:38,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:57:38,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2053903722, now seen corresponding path program 2 times [2022-03-04 04:57:38,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:57:38,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296820949] [2022-03-04 04:57:38,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:38,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:57:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:57:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:39,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:57:39,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296820949] [2022-03-04 04:57:39,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296820949] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 04:57:39,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651329936] [2022-03-04 04:57:39,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 04:57:39,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 04:57:39,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:39,676 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 04:57:39,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 04:57:39,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 04:57:39,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 04:57:39,706 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-04 04:57:39,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 04:57:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:41,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 04:57:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:43,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651329936] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 04:57:43,542 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 04:57:43,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 94 [2022-03-04 04:57:43,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896483613] [2022-03-04 04:57:43,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 04:57:43,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-03-04 04:57:43,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:57:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-03-04 04:57:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=8432, Unknown=0, NotChecked=0, Total=8930 [2022-03-04 04:57:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:43,547 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:57:43,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 1.351063829787234) internal successors, (127), 95 states have internal predecessors, (127), 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) [2022-03-04 04:57:43,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 04:57:43,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:57:50,251 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 158 transitions and produced 149 states. [2022-03-04 04:57:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 04:57:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 04:57:50,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 04:57:50,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 04:57:50,452 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 04:57:50,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:57:50,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1000224618, now seen corresponding path program 3 times [2022-03-04 04:57:50,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:57:50,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628712728] [2022-03-04 04:57:50,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:57:50,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:57:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:57:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:52,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:57:52,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628712728] [2022-03-04 04:57:52,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628712728] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 04:57:52,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741247284] [2022-03-04 04:57:52,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 04:57:52,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 04:57:52,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:57:52,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 04:57:52,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 04:57:52,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-03-04 04:57:52,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 04:57:52,184 WARN L261 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-04 04:57:52,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 04:57:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:57:55,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 04:58:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:58:00,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741247284] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 04:58:00,351 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 04:58:00,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 142 [2022-03-04 04:58:00,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492756277] [2022-03-04 04:58:00,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 04:58:00,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-03-04 04:58:00,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:58:00,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-03-04 04:58:00,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1018, Invalid=19288, Unknown=0, NotChecked=0, Total=20306 [2022-03-04 04:58:00,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:58:00,357 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:58:00,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 1.4014084507042253) internal successors, (199), 143 states have internal predecessors, (199), 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) [2022-03-04 04:58:00,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 04:58:00,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 04:58:00,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:58:21,873 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 270 transitions and produced 253 states. [2022-03-04 04:58:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 04:58:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 04:58:21,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 04:58:21,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 04:58:22,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 04:58:22,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 04:58:22,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 04:58:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1934591126, now seen corresponding path program 4 times [2022-03-04 04:58:22,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 04:58:22,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977502600] [2022-03-04 04:58:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 04:58:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 04:58:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 04:58:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 0 proven. 1438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:58:25,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 04:58:25,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977502600] [2022-03-04 04:58:25,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977502600] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 04:58:25,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057513608] [2022-03-04 04:58:25,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 04:58:25,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 04:58:25,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 04:58:25,658 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 04:58:25,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 04:58:25,720 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 04:58:25,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 04:58:25,723 WARN L261 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 159 conjunts are in the unsatisfiable core [2022-03-04 04:58:25,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 04:58:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 0 proven. 1438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:58:32,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 04:58:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 0 proven. 1438 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 04:58:42,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057513608] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 04:58:42,786 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 04:58:42,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81, 81] total 238 [2022-03-04 04:58:42,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181440844] [2022-03-04 04:58:42,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 04:58:42,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 239 states [2022-03-04 04:58:42,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 04:58:42,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2022-03-04 04:58:42,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2826, Invalid=54056, Unknown=0, NotChecked=0, Total=56882 [2022-03-04 04:58:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 04:58:42,805 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 04:58:42,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 239 states, 238 states have (on average 1.4411764705882353) internal successors, (343), 239 states have internal predecessors, (343), 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) [2022-03-04 04:58:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 04:58:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 04:58:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 04:58:42,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:00:18,350 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 494 transitions and produced 461 states. [2022-03-04 05:00:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 05:00:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 05:00:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 05:00:18,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-03-04 05:00:18,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 05:00:18,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:00:18,568 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:00:18,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:00:18,569 INFO L85 PathProgramCache]: Analyzing trace with hash -510852246, now seen corresponding path program 5 times [2022-03-04 05:00:18,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:00:18,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590117069] [2022-03-04 05:00:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:00:18,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:00:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:00:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5934 backedges. 0 proven. 5934 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:00:30,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:00:30,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590117069] [2022-03-04 05:00:30,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590117069] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:00:30,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632129718] [2022-03-04 05:00:30,119 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 05:00:30,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:00:30,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:00:30,120 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 05:00:30,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 05:00:30,205 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 64 check-sat command(s) [2022-03-04 05:00:30,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:00:30,211 WARN L261 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 287 conjunts are in the unsatisfiable core [2022-03-04 05:00:30,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 05:00:55,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5934 backedges. 0 proven. 5934 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:00:55,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 05:01:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 5934 backedges. 0 proven. 5934 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:01:30,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632129718] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 05:01:30,269 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 05:01:30,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [145, 145, 145] total 430 [2022-03-04 05:01:30,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055596337] [2022-03-04 05:01:30,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 05:01:30,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 431 states [2022-03-04 05:01:30,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 05:01:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 431 interpolants. [2022-03-04 05:01:30,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9514, Invalid=175816, Unknown=0, NotChecked=0, Total=185330 [2022-03-04 05:01:30,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:01:30,280 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 05:01:30,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 431 states, 430 states have (on average 1.4674418604651163) internal successors, (631), 431 states have internal predecessors, (631), 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) [2022-03-04 05:01:30,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 05:01:30,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 05:01:30,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 05:01:30,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 231 states. [2022-03-04 05:01:30,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 05:10:37,535 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 942 transitions and produced 877 states. [2022-03-04 05:10:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 05:10:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 05:10:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 05:10:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2022-03-04 05:10:37,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-04 05:10:37,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 05:10:37,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:10:37,736 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 05:10:37,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 05:10:37,737 INFO L85 PathProgramCache]: Analyzing trace with hash 371594090, now seen corresponding path program 6 times [2022-03-04 05:10:37,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 05:10:37,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781120054] [2022-03-04 05:10:37,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 05:10:37,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 05:10:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 05:11:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 24142 backedges. 0 proven. 24142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 05:11:17,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 05:11:17,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781120054] [2022-03-04 05:11:17,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781120054] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 05:11:17,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902691357] [2022-03-04 05:11:17,057 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 05:11:17,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:11:17,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 05:11:17,058 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 05:11:17,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 05:11:17,261 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 128 check-sat command(s) [2022-03-04 05:11:17,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 05:11:17,275 WARN L261 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 543 conjunts are in the unsatisfiable core [2022-03-04 05:11:17,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-04 05:12:06,534 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 05:12:06,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 05:12:06,579 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 05:12:06,579 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 05:12:06,579 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 05:12:06,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 05:12:06,755 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 406 with TraceHistMax 127,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 464 known predicates. [2022-03-04 05:12:06,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 05:12:06,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 05:12:06,786 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-04 05:12:06,787 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 05:12:06,787 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 05:12:06,789 INFO L202 PluginConnector]: Adding new model concurrent_mult.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 05:12:06 BasicIcfg [2022-03-04 05:12:06,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 05:12:06,790 INFO L158 Benchmark]: Toolchain (without parser) took 875119.15ms. Allocated memory was 165.7MB in the beginning and 715.1MB in the end (delta: 549.5MB). Free memory was 130.0MB in the beginning and 467.1MB in the end (delta: -337.0MB). Peak memory consumption was 587.2MB. Max. memory is 8.0GB. [2022-03-04 05:12:06,790 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 165.7MB. Free memory was 131.1MB in the beginning and 131.0MB in the end (delta: 71.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 05:12:06,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.48ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 128.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 05:12:06,790 INFO L158 Benchmark]: Boogie Preprocessor took 11.28ms. Allocated memory is still 165.7MB. Free memory was 128.5MB in the beginning and 127.6MB in the end (delta: 906.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 05:12:06,791 INFO L158 Benchmark]: RCFGBuilder took 162.02ms. Allocated memory is still 165.7MB. Free memory was 127.5MB in the beginning and 119.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-04 05:12:06,791 INFO L158 Benchmark]: TraceAbstraction took 874923.23ms. Allocated memory was 165.7MB in the beginning and 715.1MB in the end (delta: 549.5MB). Free memory was 118.8MB in the beginning and 467.1MB in the end (delta: -348.3MB). Peak memory consumption was 575.7MB. Max. memory is 8.0GB. [2022-03-04 05:12:06,792 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 0.18ms. Allocated memory is still 165.7MB. Free memory was 131.1MB in the beginning and 131.0MB in the end (delta: 71.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.48ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 128.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.28ms. Allocated memory is still 165.7MB. Free memory was 128.5MB in the beginning and 127.6MB in the end (delta: 906.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 162.02ms. Allocated memory is still 165.7MB. Free memory was 127.5MB in the beginning and 119.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 874923.23ms. Allocated memory was 165.7MB in the beginning and 715.1MB in the end (delta: 549.5MB). Free memory was 118.8MB in the beginning and 467.1MB in the end (delta: -348.3MB). Peak memory consumption was 575.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 - TimeoutResultAtElement [Line: 24]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 406 with TraceHistMax 127,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 464 known predicates. - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 406 with TraceHistMax 127,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 464 known predicates. - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 406 with TraceHistMax 127,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 464 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 33 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 874.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 673.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 903, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 110.2s InterpolantComputationTime, 954 NumberOfCodeBlocks, 954 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 1416 ConstructedInterpolants, 0 QuantifiedInterpolants, 41173 SizeOfPredicates, 60 NumberOfNonLiveVariables, 875 ConjunctsInSsa, 651 ConjunctsInUnsatCore, 15 InterpolantComputations, 0 PerfectInterpolantSequences, 0/23460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown