/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-POR-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 14:15:44,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 14:15:44,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 14:15:44,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-30 14:15:44,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-30 14:15:44,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-30 14:15:44,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-30 14:15:44,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-30 14:15:44,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-30 14:15:44,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-30 14:15:44,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-30 14:15:44,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-30 14:15:44,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 14:15:44,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 14:15:44,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 14:15:44,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 14:15:44,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 14:15:44,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 14:15:44,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 14:15:44,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 14:15:44,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 14:15:44,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 14:15:44,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 14:15:44,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 14:15:44,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-30 14:15:44,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-30 14:15:44,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-30 14:15:44,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-30 14:15:44,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-30 14:15:44,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-30 14:15:44,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-30 14:15:44,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-30 14:15:44,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-30 14:15:44,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-30 14:15:44,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-30 14:15:44,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-30 14:15:44,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-30 14:15:44,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-30 14:15:44,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-30 14:15:44,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-30 14:15:44,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-30 14:15:44,832 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-POR-DelaySleep-NoLbe-Lockstep.epf [2021-06-30 14:15:44,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 14:15:44,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 14:15:44,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 14:15:44,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 14:15:44,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 14:15:44,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 14:15:44,855 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 14:15:44,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 14:15:44,855 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 14:15:44,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 14:15:44,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 14:15:44,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 14:15:44,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 14:15:44,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 14:15:44,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 14:15:44,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 14:15:44,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 14:15:44,859 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 14:15:44,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 14:15:44,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 14:15:44,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 14:15:44,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 14:15:44,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 14:15:44,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 14:15:44,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 14:15:44,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 14:15:44,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 14:15:44,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 14:15:44,861 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-30 14:15:44,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 14:15:44,861 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 14:15:44,861 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 14:15:44,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 14:15:44,862 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-30 14:15:44,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 14:15:45,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 14:15:45,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 14:15:45,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 14:15:45,235 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 14:15:45,236 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 14:15:45,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl [2021-06-30 14:15:45,237 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub04.bpl' [2021-06-30 14:15:45,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 14:15:45,278 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 14:15:45,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 14:15:45,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 14:15:45,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 14:15:45,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 14:15:45,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 14:15:45,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 14:15:45,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 14:15:45,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 14:15:45,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 14:15:45,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 14:15:45,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 14:15:45,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 14:15:45,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 14:15:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 14:15:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 14:15:45,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 14:15:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 14:15:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 14:15:45,507 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-30 14:15:45,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 14:15:45,721 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 14:15:45,722 INFO L202 PluginConnector]: Adding new model add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 02:15:45 BoogieIcfgContainer [2021-06-30 14:15:45,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 14:15:45,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 14:15:45,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 14:15:45,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 14:15:45,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/2) ... [2021-06-30 14:15:45,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93a3484 and model type add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 02:15:45, skipping insertion in model container [2021-06-30 14:15:45,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 02:15:45" (2/2) ... [2021-06-30 14:15:45,729 INFO L111 eAbstractionObserver]: Analyzing ICFG add-sub04.bpl [2021-06-30 14:15:45,733 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 14:15:45,733 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 14:15:45,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 14:15:45,734 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 14:15:45,805 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,806 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,806 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,806 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,806 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,813 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,813 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,813 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,814 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,829 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,829 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,829 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,830 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,830 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,830 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,830 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,830 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,831 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,831 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,831 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,831 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,832 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,832 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,832 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,834 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,851 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,861 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,866 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork3_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,895 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-30 14:15:45,941 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-30 14:15:46,048 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 14:15:46,049 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 14:15:46,049 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 14:15:46,049 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 14:15:46,049 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 14:15:46,049 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 14:15:46,049 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 14:15:46,049 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 14:15:46,371 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:46,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:46,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1473293196, now seen corresponding path program 1 times [2021-06-30 14:15:46,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:46,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347002780] [2021-06-30 14:15:46,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-30 14:15:46,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:46,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347002780] [2021-06-30 14:15:46,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347002780] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:46,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432199881] [2021-06-30 14:15:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:46,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-30 14:15:46,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-06-30 14:15:47,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432199881] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:47,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:47,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-30 14:15:47,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110839284] [2021-06-30 14:15:47,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-30 14:15:47,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:47,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-30 14:15:47,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-30 14:15:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:47,146 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:47,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 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) [2021-06-30 14:15:47,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:47,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:47,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-30 14:15:47,762 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:47,762 INFO L82 PathProgramCache]: Analyzing trace with hash 189722870, now seen corresponding path program 2 times [2021-06-30 14:15:47,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:47,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668037669] [2021-06-30 14:15:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-30 14:15:47,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:47,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668037669] [2021-06-30 14:15:47,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668037669] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:47,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532092354] [2021-06-30 14:15:47,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:48,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 14:15:48,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:48,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 43 conjunts are in the unsatisfiable core [2021-06-30 14:15:48,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-30 14:15:48,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532092354] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:48,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:48,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-30 14:15:48,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045001278] [2021-06-30 14:15:48,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-30 14:15:48,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:48,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-30 14:15:48,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-30 14:15:48,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:48,135 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:48,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 9 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) [2021-06-30 14:15:48,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:48,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:48,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:48,545 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:48,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:48,546 INFO L82 PathProgramCache]: Analyzing trace with hash -165591880, now seen corresponding path program 3 times [2021-06-30 14:15:48,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:48,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362817049] [2021-06-30 14:15:48,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:48,963 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-06-30 14:15:48,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:48,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362817049] [2021-06-30 14:15:48,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362817049] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:48,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667143070] [2021-06-30 14:15:48,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:49,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-30 14:15:49,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:49,045 WARN L261 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 87 conjunts are in the unsatisfiable core [2021-06-30 14:15:49,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-06-30 14:15:49,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667143070] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:49,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:49,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-06-30 14:15:49,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152397187] [2021-06-30 14:15:49,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-30 14:15:49,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:49,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-30 14:15:49,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-06-30 14:15:49,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:49,231 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:49,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 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) [2021-06-30 14:15:49,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:49,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:49,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:49,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:50,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:50,149 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:50,150 INFO L82 PathProgramCache]: Analyzing trace with hash 968283054, now seen corresponding path program 4 times [2021-06-30 14:15:50,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:50,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441135122] [2021-06-30 14:15:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-06-30 14:15:50,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:50,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441135122] [2021-06-30 14:15:50,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441135122] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:50,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156424638] [2021-06-30 14:15:50,515 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:50,596 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-30 14:15:50,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:50,599 WARN L261 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 135 conjunts are in the unsatisfiable core [2021-06-30 14:15:50,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-06-30 14:15:50,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156424638] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:50,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:50,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-06-30 14:15:50,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565925316] [2021-06-30 14:15:50,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-30 14:15:50,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:50,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-30 14:15:50,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2021-06-30 14:15:50,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:50,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:50,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 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) [2021-06-30 14:15:50,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:50,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:50,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:50,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:51,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:51,838 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:51,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:51,838 INFO L82 PathProgramCache]: Analyzing trace with hash 535260724, now seen corresponding path program 5 times [2021-06-30 14:15:51,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:51,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591320502] [2021-06-30 14:15:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-06-30 14:15:52,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:52,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591320502] [2021-06-30 14:15:52,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591320502] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:52,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359888318] [2021-06-30 14:15:52,162 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:52,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-06-30 14:15:52,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:52,228 WARN L261 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 95 conjunts are in the unsatisfiable core [2021-06-30 14:15:52,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-06-30 14:15:52,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359888318] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:52,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:52,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-06-30 14:15:52,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078391710] [2021-06-30 14:15:52,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-30 14:15:52,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:52,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-30 14:15:52,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2021-06-30 14:15:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:52,405 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:52,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 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) [2021-06-30 14:15:52,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:52,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:52,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:52,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:52,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:53,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-30 14:15:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-30 14:15:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-30 14:15:53,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:53,654 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 14:15:53,656 INFO L202 PluginConnector]: Adding new model add-sub04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 02:15:53 BasicIcfg [2021-06-30 14:15:53,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 14:15:53,656 INFO L168 Benchmark]: Toolchain (without parser) took 8377.82 ms. Allocated memory was 177.2 MB in the beginning and 255.9 MB in the end (delta: 78.6 MB). Free memory was 157.9 MB in the beginning and 189.9 MB in the end (delta: -32.0 MB). Peak memory consumption was 48.1 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:53,656 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 177.2 MB. Free memory is still 158.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 14:15:53,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.80 ms. Allocated memory is still 177.2 MB. Free memory was 157.8 MB in the beginning and 156.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:53,657 INFO L168 Benchmark]: Boogie Preprocessor took 30.34 ms. Allocated memory is still 177.2 MB. Free memory was 156.3 MB in the beginning and 155.5 MB in the end (delta: 823.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:53,657 INFO L168 Benchmark]: RCFGBuilder took 359.12 ms. Allocated memory is still 177.2 MB. Free memory was 155.3 MB in the beginning and 146.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:53,657 INFO L168 Benchmark]: TraceAbstraction took 7931.64 ms. Allocated memory was 177.2 MB in the beginning and 255.9 MB in the end (delta: 78.6 MB). Free memory was 145.6 MB in the beginning and 189.9 MB in the end (delta: -44.3 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:53,657 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 0.18 ms. Allocated memory is still 177.2 MB. Free memory is still 158.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.80 ms. Allocated memory is still 177.2 MB. Free memory was 157.8 MB in the beginning and 156.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.34 ms. Allocated memory is still 177.2 MB. Free memory was 156.3 MB in the beginning and 155.5 MB in the end (delta: 823.6 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 359.12 ms. Allocated memory is still 177.2 MB. Free memory was 155.3 MB in the beginning and 146.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7931.64 ms. Allocated memory was 177.2 MB in the beginning and 255.9 MB in the end (delta: 78.6 MB). Free memory was 145.6 MB in the beginning and 189.9 MB in the end (delta: -44.3 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 23452, positive: 20880, positive conditional: 20880, positive unconditional: 0, negative: 2572, negative conditional: 2572, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 20880, positive: 20880, positive conditional: 20880, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 20880, positive: 20880, positive conditional: 0, positive unconditional: 20880, 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: 267, positive: 267, positive conditional: 0, positive unconditional: 267, 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: 267, positive: 219, positive conditional: 0, positive unconditional: 219, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20880, positive: 20613, positive conditional: 0, positive unconditional: 20613, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 267, unknown conditional: 0, unknown unconditional: 267] , Statistics on independence cache: Total cache size (in pairs): 267, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, positive: 234, positive conditional: 0, positive unconditional: 234, 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): 267, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, positive: 234, positive conditional: 0, positive unconditional: 234, 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): 267, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, positive: 234, positive conditional: 0, positive unconditional: 234, 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): 267, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, positive: 234, positive conditional: 0, positive unconditional: 234, 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): 267, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, positive: 234, positive conditional: 0, positive unconditional: 234, 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): 267, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 2572 - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 6 procedures, 37 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7674.2ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.8ms, PartialOrderReductionTime: 3321.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 72.2ms SsaConstructionTime, 288.5ms SatisfiabilityAnalysisTime, 2478.2ms InterpolantComputationTime, 728 NumberOfCodeBlocks, 728 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 5998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 735 ConjunctsInSsa, 407 ConjunctsInUnsatCore, 10 InterpolantComputations, 0 PerfectInterpolantSequences, 472/1684 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...