/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-sub03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8b99979fc9bd30b823d307a67cb055caa4790482-8b99979 [2021-06-30 14:15:45,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-30 14:15:45,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-30 14:15:45,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-30 14:15:45,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-30 14:15:45,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-30 14:15:45,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-30 14:15:45,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-30 14:15:45,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-30 14:15:45,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-30 14:15:45,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-30 14:15:45,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-30 14:15:45,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-30 14:15:45,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-30 14:15:45,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-30 14:15:45,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-30 14:15:45,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-30 14:15:45,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-30 14:15:45,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-30 14:15:45,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-30 14:15:45,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-30 14:15:45,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-30 14:15:45,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-30 14:15:45,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-30 14:15:45,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-30 14:15:45,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-30 14:15:45,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-30 14:15:45,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-30 14:15:45,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-30 14:15:45,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-30 14:15:45,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-30 14:15:45,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-30 14:15:45,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-30 14:15:45,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-30 14:15:45,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-30 14:15:45,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-30 14:15:45,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-30 14:15:45,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-30 14:15:45,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-30 14:15:45,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-30 14:15:45,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-30 14:15:45,216 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 14:15:45,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-30 14:15:45,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-30 14:15:45,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-30 14:15:45,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-30 14:15:45,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-30 14:15:45,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-30 14:15:45,246 INFO L138 SettingsManager]: * Use SBE=true [2021-06-30 14:15:45,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-30 14:15:45,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-30 14:15:45,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-30 14:15:45,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-30 14:15:45,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-30 14:15:45,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-30 14:15:45,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-30 14:15:45,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-30 14:15:45,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-30 14:15:45,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-30 14:15:45,250 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-30 14:15:45,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-30 14:15:45,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-30 14:15:45,250 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-30 14:15:45,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-30 14:15:45,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-30 14:15:45,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-30 14:15:45,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-30 14:15:45,532 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-30 14:15:45,532 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-30 14:15:45,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub03.bpl [2021-06-30 14:15:45,533 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/add-sub03.bpl' [2021-06-30 14:15:45,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-30 14:15:45,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-30 14:15:45,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-30 14:15:45,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-30 14:15:45,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-30 14:15:45,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-30 14:15:45,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-30 14:15:45,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-30 14:15:45,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-30 14:15:45,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/1) ... [2021-06-30 14:15:45,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-30 14:15:45,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-30 14:15:45,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-30 14:15:45,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-30 14:15:45,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "add-sub03.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 14:15:45,647 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-30 14:15:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-30 14:15:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-30 14:15:45,647 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Thread given in one single declaration [2021-06-30 14:15:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure Thread [2021-06-30 14:15:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure Thread [2021-06-30 14:15:45,648 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 14:15:45,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-30 14:15:45,756 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-06-30 14:15:45,758 INFO L202 PluginConnector]: Adding new model add-sub03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 02:15:45 BoogieIcfgContainer [2021-06-30 14:15:45,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-30 14:15:45,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-30 14:15:45,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-30 14:15:45,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-30 14:15:45,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.06 02:15:45" (1/2) ... [2021-06-30 14:15:45,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a15f8dc and model type add-sub03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.06 02:15:45, skipping insertion in model container [2021-06-30 14:15:45,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "add-sub03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.06 02:15:45" (2/2) ... [2021-06-30 14:15:45,763 INFO L111 eAbstractionObserver]: Analyzing ICFG add-sub03.bpl [2021-06-30 14:15:45,769 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-30 14:15:45,770 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-30 14:15:45,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-30 14:15:45,771 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-30 14:15:45,796 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,796 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,797 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,797 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,797 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,798 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,799 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,800 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,800 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,800 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,801 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,802 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,803 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,803 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,803 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,803 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,804 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,804 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,807 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,812 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork1_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,824 WARN L313 ript$VariableManager]: TermVariabe ThreadThread1of1ForFork2_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-30 14:15:45,835 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-30 14:15:45,854 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 14:15:45,908 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-30 14:15:45,908 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-30 14:15:45,908 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-30 14:15:45,908 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-30 14:15:45,908 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-30 14:15:45,908 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-30 14:15:45,908 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-30 14:15:45,909 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-30 14:15:46,106 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:46,113 INFO L82 PathProgramCache]: Analyzing trace with hash 339040364, now seen corresponding path program 1 times [2021-06-30 14:15:46,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:46,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248076866] [2021-06-30 14:15:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-30 14:15:46,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:46,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248076866] [2021-06-30 14:15:46,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248076866] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:46,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749483345] [2021-06-30 14:15:46,388 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 14:15:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:46,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-30 14:15:46,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-30 14:15:46,597 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749483345] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:46,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:46,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 14:15:46,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491903827] [2021-06-30 14:15:46,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 14:15:46,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:46,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 14:15:46,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 14:15:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:46,617 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:46,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 14:15:46,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:46,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-30 14:15:46,976 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:46,977 INFO L82 PathProgramCache]: Analyzing trace with hash -607365354, now seen corresponding path program 2 times [2021-06-30 14:15:46,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:46,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74575519] [2021-06-30 14:15:46,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-30 14:15:47,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:47,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74575519] [2021-06-30 14:15:47,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74575519] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:47,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265433458] [2021-06-30 14:15:47,058 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) [2021-06-30 14:15:47,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-30 14:15:47,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:47,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-30 14:15:47,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-30 14:15:47,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265433458] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:47,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:47,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-06-30 14:15:47,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992936169] [2021-06-30 14:15:47,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-30 14:15:47,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:47,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-30 14:15:47,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-30 14:15:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:47,187 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:47,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 14:15:47,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,188 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:47,522 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:47,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:47,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1879496428, now seen corresponding path program 3 times [2021-06-30 14:15:47,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:47,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368974605] [2021-06-30 14:15:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:47,667 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-30 14:15:47,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:47,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368974605] [2021-06-30 14:15:47,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368974605] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:47,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564989161] [2021-06-30 14:15:47,667 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 14:15:47,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-30 14:15:47,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:47,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-30 14:15:47,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:47,800 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-30 14:15:47,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564989161] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:47,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:47,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 14:15:47,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471063549] [2021-06-30 14:15:47,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 14:15:47,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:47,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 14:15:47,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 14:15:47,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:47,803 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:47,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 14:15:47,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:47,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:48,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:48,137 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:48,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:48,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1752621154, now seen corresponding path program 4 times [2021-06-30 14:15:48,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:48,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892863483] [2021-06-30 14:15:48,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-30 14:15:48,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:48,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892863483] [2021-06-30 14:15:48,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892863483] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:48,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307318522] [2021-06-30 14:15:48,368 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 14:15:48,441 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-30 14:15:48,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:48,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-30 14:15:48,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-30 14:15:48,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307318522] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:48,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:48,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-06-30 14:15:48,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120933369] [2021-06-30 14:15:48,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-30 14:15:48,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:48,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-30 14:15:48,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-06-30 14:15:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:48,503 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:48,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 14:15:48,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:48,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:48,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:48,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:48,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:48,811 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:48,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:48,811 INFO L82 PathProgramCache]: Analyzing trace with hash -413892596, now seen corresponding path program 5 times [2021-06-30 14:15:48,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:48,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754014201] [2021-06-30 14:15:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:48,918 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-30 14:15:48,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:48,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754014201] [2021-06-30 14:15:48,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754014201] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:48,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680397021] [2021-06-30 14:15:48,918 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 14:15:48,946 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-30 14:15:48,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:48,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-30 14:15:48,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-30 14:15:49,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680397021] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:49,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:49,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-06-30 14:15:49,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589294852] [2021-06-30 14:15:49,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-30 14:15:49,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:49,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-30 14:15:49,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-06-30 14:15:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:49,005 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:49,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 14:15:49,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-30 14:15:49,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:49,345 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-30 14:15:49,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-30 14:15:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash 216581516, now seen corresponding path program 6 times [2021-06-30 14:15:49,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-30 14:15:49,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525227339] [2021-06-30 14:15:49,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-30 14:15:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-30 14:15:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-30 14:15:49,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-30 14:15:49,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525227339] [2021-06-30 14:15:49,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525227339] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:49,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077100803] [2021-06-30 14:15:49,447 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:49,491 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-30 14:15:49,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-30 14:15:49,493 WARN L261 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-30 14:15:49,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-30 14:15:49,575 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-30 14:15:49,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077100803] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-30 14:15:49,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-30 14:15:49,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-30 14:15:49,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541607604] [2021-06-30 14:15:49,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-30 14:15:49,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-30 14:15:49,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-30 14:15:49,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-06-30 14:15:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:49,580 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-30 14:15:49,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 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) [2021-06-30 14:15:49,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-30 14:15:49,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-30 14:15:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-30 14:15:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-30 14:15:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-30 14:15:49,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-30 14:15:49,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-30 14:15:49,968 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-30 14:15:49,970 INFO L202 PluginConnector]: Adding new model add-sub03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.06 02:15:49 BasicIcfg [2021-06-30 14:15:49,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-30 14:15:49,970 INFO L168 Benchmark]: Toolchain (without parser) took 4405.08 ms. Allocated memory was 183.5 MB in the beginning and 220.2 MB in the end (delta: 36.7 MB). Free memory was 163.9 MB in the beginning and 101.1 MB in the end (delta: 62.8 MB). Peak memory consumption was 100.4 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:49,970 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 183.5 MB. Free memory is still 164.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-30 14:15:49,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.36 ms. Allocated memory is still 183.5 MB. Free memory was 163.7 MB in the beginning and 162.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:49,970 INFO L168 Benchmark]: Boogie Preprocessor took 11.03 ms. Allocated memory is still 183.5 MB. Free memory was 162.3 MB in the beginning and 161.4 MB in the end (delta: 851.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:49,970 INFO L168 Benchmark]: RCFGBuilder took 159.38 ms. Allocated memory is still 183.5 MB. Free memory was 161.2 MB in the beginning and 152.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:49,970 INFO L168 Benchmark]: TraceAbstraction took 4210.29 ms. Allocated memory was 183.5 MB in the beginning and 220.2 MB in the end (delta: 36.7 MB). Free memory was 152.0 MB in the beginning and 101.1 MB in the end (delta: 50.9 MB). Peak memory consumption was 87.8 MB. Max. memory is 8.0 GB. [2021-06-30 14:15:49,971 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 0.13 ms. Allocated memory is still 183.5 MB. Free memory is still 164.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 20.36 ms. Allocated memory is still 183.5 MB. Free memory was 163.7 MB in the beginning and 162.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.03 ms. Allocated memory is still 183.5 MB. Free memory was 162.3 MB in the beginning and 161.4 MB in the end (delta: 851.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 159.38 ms. Allocated memory is still 183.5 MB. Free memory was 161.2 MB in the beginning and 152.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4210.29 ms. Allocated memory was 183.5 MB in the beginning and 220.2 MB in the end (delta: 36.7 MB). Free memory was 152.0 MB in the beginning and 101.1 MB in the end (delta: 50.9 MB). Peak memory consumption was 87.8 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: 3533, positive: 2963, positive conditional: 2963, positive unconditional: 0, negative: 570, negative conditional: 570, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 2963, positive: 2963, positive conditional: 2963, 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: 2963, positive: 2963, positive conditional: 0, positive unconditional: 2963, 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: 129, positive: 129, positive conditional: 0, positive unconditional: 129, 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: 129, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2963, positive: 2834, positive conditional: 0, positive unconditional: 2834, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 129, unknown conditional: 0, unknown unconditional: 129] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, 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): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, 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): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, 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): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, 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): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, 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): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 24, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 174, positive: 174, positive conditional: 0, positive unconditional: 174, 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): 129, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, 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: 570 - PositiveResult [Line: 16]: 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 5 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4093.8ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.2ms, PartialOrderReductionTime: 951.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 49, 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: 46.0ms SsaConstructionTime, 143.2ms SatisfiabilityAnalysisTime, 1314.9ms InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 2954 SizeOfPredicates, 0 NumberOfNonLiveVariables, 417 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 118/336 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...