/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/NonAtomicIncrement_2Threads_Loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 10:48:37,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 10:48:37,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 10:48:37,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 10:48:37,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 10:48:37,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 10:48:37,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 10:48:37,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 10:48:37,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 10:48:37,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 10:48:37,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 10:48:37,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 10:48:37,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 10:48:37,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 10:48:37,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 10:48:37,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 10:48:37,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 10:48:37,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 10:48:37,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 10:48:37,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 10:48:37,407 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-MCRwithoutDepranks-Lazy.epf [2022-02-20 10:48:37,436 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 10:48:37,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 10:48:37,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 10:48:37,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 10:48:37,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 10:48:37,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 10:48:37,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 10:48:37,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 10:48:37,438 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 10:48:37,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 10:48:37,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 10:48:37,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 10:48:37,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 10:48:37,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 10:48:37,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 10:48:37,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 10:48:37,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 10:48:37,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 10:48:37,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 10:48:37,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 10:48:37,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 10:48:37,444 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 10:48:37,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 10:48:37,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 10:48:37,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 10:48:37,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 10:48:37,446 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 10:48:37,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 10:48:37,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 10:48:37,446 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 10:48:37,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 10:48:37,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 10:48:37,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 10:48:37,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 10:48:37,703 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 10:48:37,704 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 10:48:37,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/NonAtomicIncrement_2Threads_Loop.bpl [2022-02-20 10:48:37,705 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/NonAtomicIncrement_2Threads_Loop.bpl' [2022-02-20 10:48:37,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 10:48:37,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 10:48:37,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 10:48:37,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 10:48:37,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 10:48:37,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,744 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 10:48:37,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 10:48:37,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 10:48:37,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 10:48:37,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 10:48:37,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 10:48:37,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 10:48:37,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 10:48:37,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 10:48:37,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/1) ... [2022-02-20 10:48:37,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 10:48:37,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:48:37,794 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) [2022-02-20 10:48:37,804 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 [2022-02-20 10:48:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure fistIncrementProcess [2022-02-20 10:48:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure fistIncrementProcess [2022-02-20 10:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 10:48:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 10:48:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure secondIncrementProcess [2022-02-20 10:48:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure secondIncrementProcess [2022-02-20 10:48:37,827 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 10:48:37,866 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 10:48:37,867 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 10:48:37,960 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 10:48:37,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 10:48:37,970 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 10:48:37,972 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 10:48:37 BoogieIcfgContainer [2022-02-20 10:48:37,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 10:48:37,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 10:48:37,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 10:48:37,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 10:48:37,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 10:48:37" (1/2) ... [2022-02-20 10:48:37,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596d9210 and model type NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 10:48:37, skipping insertion in model container [2022-02-20 10:48:37,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads_Loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 10:48:37" (2/2) ... [2022-02-20 10:48:37,983 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads_Loop.bpl [2022-02-20 10:48:37,998 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 10:48:37,998 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 10:48:37,999 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 10:48:37,999 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 10:48:38,048 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,048 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,048 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,049 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,049 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,049 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,050 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,050 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,050 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,050 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,051 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,051 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,051 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,051 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,052 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,052 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,052 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,052 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,053 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,053 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,053 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,053 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,054 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,054 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,054 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,054 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,055 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,055 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,058 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,058 WARN L322 ript$VariableManager]: TermVariabe fistIncrementProcessThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,062 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,062 WARN L322 ript$VariableManager]: TermVariabe secondIncrementProcessThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 10:48:38,066 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 10:48:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 10:48:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:48:38,125 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) [2022-02-20 10:48:38,126 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 [2022-02-20 10:48:38,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 10:48:38,195 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=true, mMcrOverapproximateWrwc=true [2022-02-20 10:48:38,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 10:48:39,101 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 462 transitions and produced 429 states. [2022-02-20 10:48:39,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 10:48:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:48:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1411299300, now seen corresponding path program 1 times [2022-02-20 10:48:39,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:48:39,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445836232] [2022-02-20 10:48:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:48:39,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:48:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:48:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 1292 proven. 1678 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 10:48:44,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:48:44,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445836232] [2022-02-20 10:48:44,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445836232] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 10:48:44,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338209779] [2022-02-20 10:48:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:48:44,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 10:48:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:48:44,146 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) [2022-02-20 10:48:44,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 10:48:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:48:44,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-20 10:48:44,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 10:48:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 2500 trivial. 0 not checked. [2022-02-20 10:48:44,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 10:48:44,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338209779] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:48:44,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-20 10:48:44,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [117] total 123 [2022-02-20 10:48:44,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586664280] [2022-02-20 10:48:44,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:48:44,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-20 10:48:44,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:48:44,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-20 10:48:44,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2038, Invalid=12968, Unknown=0, NotChecked=0, Total=15006 [2022-02-20 10:48:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:44,853 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:48:44,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2022-02-20 10:48:44,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:44,970 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 81 transitions and produced 79 states. [2022-02-20 10:48:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:44,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 10:48:45,196 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 [2022-02-20 10:48:45,197 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 10:48:45,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:48:45,198 INFO L85 PathProgramCache]: Analyzing trace with hash 186427997, now seen corresponding path program 2 times [2022-02-20 10:48:45,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:48:45,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356533520] [2022-02-20 10:48:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:48:45,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:48:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:48:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-20 10:48:45,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:48:45,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356533520] [2022-02-20 10:48:45,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356533520] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:48:45,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:48:45,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-20 10:48:45,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331684840] [2022-02-20 10:48:45,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:48:45,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-20 10:48:45,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:48:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-20 10:48:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-20 10:48:45,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:45,244 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:48:45,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2022-02-20 10:48:45,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:45,326 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 76 transitions and produced 75 states. [2022-02-20 10:48:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 10:48:45,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 10:48:45,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:48:45,328 INFO L85 PathProgramCache]: Analyzing trace with hash -640607936, now seen corresponding path program 1 times [2022-02-20 10:48:45,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:48:45,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420724329] [2022-02-20 10:48:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:48:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:48:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:48:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-20 10:48:45,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:48:45,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420724329] [2022-02-20 10:48:45,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420724329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:48:45,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:48:45,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 10:48:45,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473778235] [2022-02-20 10:48:45,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:48:45,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 10:48:45,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:48:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 10:48:45,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 10:48:45,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:45,376 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:48:45,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-02-20 10:48:45,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:45,434 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 76 transitions and produced 75 states. [2022-02-20 10:48:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:48:45,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 10:48:45,435 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 10:48:45,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:48:45,444 INFO L85 PathProgramCache]: Analyzing trace with hash -640607006, now seen corresponding path program 3 times [2022-02-20 10:48:45,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:48:45,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068748134] [2022-02-20 10:48:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:48:45,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:48:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:48:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 10:48:45,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:48:45,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068748134] [2022-02-20 10:48:45,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068748134] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 10:48:45,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 10:48:45,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-20 10:48:45,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778888498] [2022-02-20 10:48:45,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 10:48:45,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-20 10:48:45,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:48:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-20 10:48:45,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-20 10:48:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:48:45,572 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:48:45,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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) [2022-02-20 10:48:45,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:48:45,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:48:45,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:49:39,503 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 59447 transitions and produced 55985 states. [2022-02-20 10:49:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:49:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:49:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:49:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-20 10:49:39,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 10:49:39,505 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 10:49:39,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 10:49:39,505 INFO L85 PathProgramCache]: Analyzing trace with hash 416237692, now seen corresponding path program 4 times [2022-02-20 10:49:39,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 10:49:39,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878322129] [2022-02-20 10:49:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 10:49:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 10:49:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 10:49:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 10:49:39,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 10:49:39,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878322129] [2022-02-20 10:49:39,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878322129] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 10:49:39,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826462816] [2022-02-20 10:49:39,606 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 10:49:39,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 10:49:39,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 10:49:39,608 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) [2022-02-20 10:49:39,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 10:49:39,649 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 10:49:39,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 10:49:39,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-20 10:49:39,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 10:49:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 10:49:39,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 10:49:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 10:49:39,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826462816] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 10:49:39,880 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 10:49:39,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2022-02-20 10:49:39,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061789431] [2022-02-20 10:49:39,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 10:49:39,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-20 10:49:39,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 10:49:39,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-20 10:49:39,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-02-20 10:49:39,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 10:49:39,882 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 10:49:39,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.6) internal successors, (72), 20 states have internal predecessors, (72), 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) [2022-02-20 10:49:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:49:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 10:49:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 10:49:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-02-20 10:49:39,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.