/usr/bin/java -Xmx16000000000 -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-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 21:40:41,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 21:40:41,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 21:40:41,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-03 21:40:41,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-03 21:40:41,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-03 21:40:41,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-03 21:40:41,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-03 21:40:41,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-03 21:40:41,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-03 21:40:41,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-03 21:40:41,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-03 21:40:41,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 21:40:41,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 21:40:41,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 21:40:41,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 21:40:41,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 21:40:41,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 21:40:41,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 21:40:41,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 21:40:41,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 21:40:41,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 21:40:41,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 21:40:41,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 21:40:41,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-03 21:40:41,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-03 21:40:41,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-03 21:40:41,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-03 21:40:41,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-03 21:40:41,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-03 21:40:41,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-03 21:40:41,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-03 21:40:41,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-03 21:40:41,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-03 21:40:41,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-03 21:40:41,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-03 21:40:41,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-03 21:40:41,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-03 21:40:41,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 21:40:41,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 21:40:41,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 21:40:41,796 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-DelaySleepPersistent-NoLbe.epf [2021-05-03 21:40:41,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 21:40:41,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 21:40:41,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 21:40:41,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 21:40:41,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 21:40:41,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 21:40:41,838 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 21:40:41,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 21:40:41,838 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 21:40:41,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 21:40:41,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 21:40:41,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 21:40:41,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 21:40:41,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 21:40:41,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 21:40:41,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 21:40:41,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 21:40:41,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 21:40:41,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 21:40:41,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 21:40:41,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 21:40:41,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 21:40:41,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 21:40:41,842 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 21:40:41,842 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 21:40:41,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 21:40:41,842 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-05-03 21:40:41,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 21:40:42,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 21:40:42,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 21:40:42,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 21:40:42,189 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 21:40:42,190 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 21:40:42,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl [2021-05-03 21:40:42,191 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/name-comparator-symm.wvr.bpl' [2021-05-03 21:40:42,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 21:40:42,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 21:40:42,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 21:40:42,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 21:40:42,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 21:40:42,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 21:40:42,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 21:40:42,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 21:40:42,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 21:40:42,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/1) ... [2021-05-03 21:40:42,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 21:40:42,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 21:40:42,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 21:40:42,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 21:40:42,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (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 [2021-05-03 21:40:42,352 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 21:40:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 21:40:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 21:40:42,352 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 21:40:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 21:40:42,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 21:40:42,353 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 21:40:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 21:40:42,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 21:40:42,353 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 21:40:42,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 21:40:42,668 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-03 21:40:42,670 INFO L202 PluginConnector]: Adding new model name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:40:42 BoogieIcfgContainer [2021-05-03 21:40:42,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 21:40:42,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 21:40:42,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 21:40:42,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 21:40:42,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:42" (1/2) ... [2021-05-03 21:40:42,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ead273 and model type name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 09:40:42, skipping insertion in model container [2021-05-03 21:40:42,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:40:42" (2/2) ... [2021-05-03 21:40:42,677 INFO L111 eAbstractionObserver]: Analyzing ICFG name-comparator-symm.wvr.bpl [2021-05-03 21:40:42,682 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 21:40:42,683 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 21:40:42,686 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 21:40:42,687 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 21:40:42,714 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-03 21:40:42,729 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 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 [2021-05-03 21:40:42,796 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 21:40:42,796 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 21:40:42,796 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 21:40:42,796 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 21:40:42,796 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 21:40:42,796 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 21:40:42,797 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 21:40:42,797 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 21:40:42,863 WARN L313 ript$VariableManager]: TermVariabe v_break_6_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,872 WARN L313 ript$VariableManager]: TermVariabe v_break_6_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,873 WARN L313 ript$VariableManager]: TermVariabe v_break_6_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,895 WARN L313 ript$VariableManager]: TermVariabe v_break_6_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,925 WARN L313 ript$VariableManager]: TermVariabe v_break_6_56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,930 WARN L313 ript$VariableManager]: TermVariabe v_break_6_56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,940 WARN L313 ript$VariableManager]: TermVariabe v_break_10_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,941 WARN L313 ript$VariableManager]: TermVariabe v_break_10_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,948 WARN L313 ript$VariableManager]: TermVariabe v_break_10_56 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,949 WARN L313 ript$VariableManager]: TermVariabe v_break_10_54 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-03 21:40:42,967 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:42,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:42,972 INFO L82 PathProgramCache]: Analyzing trace with hash 70144646, now seen corresponding path program 1 times [2021-05-03 21:40:42,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:42,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76409432] [2021-05-03 21:40:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:43,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:43,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76409432] [2021-05-03 21:40:43,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 21:40:43,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-03 21:40:43,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929394352] [2021-05-03 21:40:43,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 21:40:43,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:43,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 21:40:43,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-03 21:40:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:43,234 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:43,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-05-03 21:40:43,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:43,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 21:40:43,354 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:43,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:43,359 INFO L82 PathProgramCache]: Analyzing trace with hash -945754712, now seen corresponding path program 1 times [2021-05-03 21:40:43,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:43,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992758598] [2021-05-03 21:40:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:43,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992758598] [2021-05-03 21:40:43,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527284045] [2021-05-03 21:40:43,473 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 [2021-05-03 21:40:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:43,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-03 21:40:43,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:43,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-05-03 21:40:43,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-05-03 21:40:43,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101939944] [2021-05-03 21:40:43,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 21:40:43,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:43,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 21:40:43,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-03 21:40:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:43,620 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:43,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-05-03 21:40:43,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:43,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:43,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:43,882 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:43,883 INFO L82 PathProgramCache]: Analyzing trace with hash 716671425, now seen corresponding path program 1 times [2021-05-03 21:40:43,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:43,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43436383] [2021-05-03 21:40:43,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:44,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43436383] [2021-05-03 21:40:44,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604910098] [2021-05-03 21:40:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-05-03 21:40:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:44,230 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 28 conjunts are in the unsatisfiable core [2021-05-03 21:40:44,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:44,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-05-03 21:40:44,526 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:44,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-05-03 21:40:44,535 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:44,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:40:44,554 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-05-03 21:40:44,554 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:49, output treesize:35 [2021-05-03 21:40:44,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:44,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:40:44,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-05-03 21:40:44,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772501961] [2021-05-03 21:40:44,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 21:40:44,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:44,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 21:40:44,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-05-03 21:40:44,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:44,684 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:44,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 21:40:44,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:44,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:44,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:44,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:45,209 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:45,209 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:45,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:45,210 INFO L82 PathProgramCache]: Analyzing trace with hash -605035421, now seen corresponding path program 2 times [2021-05-03 21:40:45,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:45,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409971223] [2021-05-03 21:40:45,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:45,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409971223] [2021-05-03 21:40:45,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104993183] [2021-05-03 21:40:45,314 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 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 [2021-05-03 21:40:45,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 21:40:45,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:40:45,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-03 21:40:45,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:45,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:40:45,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-05-03 21:40:45,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119580027] [2021-05-03 21:40:45,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-03 21:40:45,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:45,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-03 21:40:45,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-05-03 21:40:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:45,477 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:45,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-05-03 21:40:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:45,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:45,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:45,785 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:45,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:45,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1605932442, now seen corresponding path program 3 times [2021-05-03 21:40:45,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:45,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419178108] [2021-05-03 21:40:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:46,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419178108] [2021-05-03 21:40:46,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404225818] [2021-05-03 21:40:46,021 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 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 [2021-05-03 21:40:46,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-05-03 21:40:46,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:40:46,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-03 21:40:46,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:46,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,811 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-05-03 21:40:46,813 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:46,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 8 [2021-05-03 21:40:46,821 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:46,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-05-03 21:40:46,828 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:46,833 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-05-03 21:40:46,835 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:46,902 INFO L628 ElimStorePlain]: treesize reduction 133, result has 28.9 percent of original size [2021-05-03 21:40:46,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:46,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-05-03 21:40:46,909 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:46,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:40:46,937 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-05-03 21:40:46,937 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:311, output treesize:35 [2021-05-03 21:40:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:47,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:40:47,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2021-05-03 21:40:47,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817496748] [2021-05-03 21:40:47,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 21:40:47,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:47,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 21:40:47,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-05-03 21:40:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:47,002 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:47,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6666666666666667) internal successors, (25), 15 states have internal predecessors, (25), 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) [2021-05-03 21:40:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:47,003 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:47,376 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-05-03 21:40:47,723 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-05-03 21:40:47,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:47,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:47,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:47,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:47,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:47,957 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-05-03 21:40:47,957 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:47,958 INFO L82 PathProgramCache]: Analyzing trace with hash -455891832, now seen corresponding path program 4 times [2021-05-03 21:40:47,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:47,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680806985] [2021-05-03 21:40:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:48,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680806985] [2021-05-03 21:40:48,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460930171] [2021-05-03 21:40:48,060 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 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 [2021-05-03 21:40:48,101 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 21:40:48,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:40:48,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 20 conjunts are in the unsatisfiable core [2021-05-03 21:40:48,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:48,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:40:48,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-05-03 21:40:48,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728898027] [2021-05-03 21:40:48,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 21:40:48,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:48,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 21:40:48,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-05-03 21:40:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:48,181 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:48,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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) [2021-05-03 21:40:48,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:48,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:48,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:48,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:48,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:48,184 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:48,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:48,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:48,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:48,517 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:48,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1277448479, now seen corresponding path program 5 times [2021-05-03 21:40:48,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:48,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919126802] [2021-05-03 21:40:48,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:48,860 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:48,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919126802] [2021-05-03 21:40:48,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900120374] [2021-05-03 21:40:48,860 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 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 [2021-05-03 21:40:48,914 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-05-03 21:40:48,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:40:48,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-03 21:40:48,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:49,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2021-05-03 21:40:49,545 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:49,550 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,551 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-05-03 21:40:49,553 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:49,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 9 [2021-05-03 21:40:49,583 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:49,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2021-05-03 21:40:49,590 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:49,679 INFO L628 ElimStorePlain]: treesize reduction 257, result has 21.6 percent of original size [2021-05-03 21:40:49,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-05-03 21:40:49,693 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:49,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:40:49,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 21:40:49,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-05-03 21:40:49,736 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-05-03 21:40:49,768 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:40:49,774 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-05-03 21:40:49,774 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:458, output treesize:41 [2021-05-03 21:40:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:49,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:40:49,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-05-03 21:40:49,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129618861] [2021-05-03 21:40:49,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 21:40:49,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:49,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 21:40:49,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-05-03 21:40:49,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:49,860 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:49,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 19 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) [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:49,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:50,445 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2021-05-03 21:40:50,698 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2021-05-03 21:40:50,854 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2021-05-03 21:40:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:40:51,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-05-03 21:40:51,082 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:51,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:51,082 INFO L82 PathProgramCache]: Analyzing trace with hash -975900760, now seen corresponding path program 6 times [2021-05-03 21:40:51,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:51,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545671934] [2021-05-03 21:40:51,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:51,132 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-03 21:40:51,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545671934] [2021-05-03 21:40:51,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945067238] [2021-05-03 21:40:51,132 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:51,163 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-05-03 21:40:51,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:40:51,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 21:40:51,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-03 21:40:51,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-05-03 21:40:51,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 7 [2021-05-03 21:40:51,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410658741] [2021-05-03 21:40:51,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 21:40:51,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:51,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 21:40:51,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-03 21:40:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:51,208 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:51,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:40:51,209 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:51,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:40:51,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:40:51,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:51,441 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:51,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:51,441 INFO L82 PathProgramCache]: Analyzing trace with hash 104982659, now seen corresponding path program 7 times [2021-05-03 21:40:51,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:51,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450596205] [2021-05-03 21:40:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-03 21:40:51,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450596205] [2021-05-03 21:40:51,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905924638] [2021-05-03 21:40:51,483 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:51,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2021-05-03 21:40:51,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:40:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-05-03 21:40:51,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-05-03 21:40:51,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2021-05-03 21:40:51,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005049726] [2021-05-03 21:40:51,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 21:40:51,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:51,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 21:40:51,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-03 21:40:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:51,606 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:51,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:51,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:40:51,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:40:51,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:40:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:40:51,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:40:51,852 INFO L202 PluginConnector]: Adding new model name-comparator-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 09:40:51 BasicIcfg [2021-05-03 21:40:51,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 21:40:51,852 INFO L168 Benchmark]: Toolchain (without parser) took 9618.43 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 338.0 MB in the beginning and 391.0 MB in the end (delta: -53.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:51,852 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 358.6 MB. Free memory was 339.3 MB in the beginning and 339.2 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 21:40:51,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.80 ms. Allocated memory is still 358.6 MB. Free memory was 338.0 MB in the beginning and 336.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 21:40:51,852 INFO L168 Benchmark]: Boogie Preprocessor took 26.03 ms. Allocated memory is still 358.6 MB. Free memory was 336.5 MB in the beginning and 335.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:51,853 INFO L168 Benchmark]: RCFGBuilder took 379.56 ms. Allocated memory is still 358.6 MB. Free memory was 335.4 MB in the beginning and 337.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:51,853 INFO L168 Benchmark]: TraceAbstraction took 9179.85 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 336.2 MB in the beginning and 391.0 MB in the end (delta: -54.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:51,853 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 0.15 ms. Allocated memory is still 358.6 MB. Free memory was 339.3 MB in the beginning and 339.2 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.80 ms. Allocated memory is still 358.6 MB. Free memory was 338.0 MB in the beginning and 336.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.03 ms. Allocated memory is still 358.6 MB. Free memory was 336.5 MB in the beginning and 335.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 379.56 ms. Allocated memory is still 358.6 MB. Free memory was 335.4 MB in the beginning and 337.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9179.85 ms. Allocated memory was 358.6 MB in the beginning and 432.0 MB in the end (delta: 73.4 MB). Free memory was 336.2 MB in the beginning and 391.0 MB in the end (delta: -54.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 241, positive: 138, positive conditional: 138, positive unconditional: 0, negative: 103, negative conditional: 103, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 138, positive: 138, positive conditional: 138, 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: 240, positive: 235, positive conditional: 0, positive unconditional: 235, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 240, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, 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): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 103 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 149, Number of persistent set computation: 737, Number of trivial persistent sets: 733, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 240, positive: 235, positive conditional: 0, positive unconditional: 235, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 240, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - PositiveResult [Line: 81]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9105.5ms, OverallIterations: 9, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.6ms, PartialOrderReductionTime: 2648.9ms, 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: 73.5ms SsaConstructionTime, 322.0ms SatisfiabilityAnalysisTime, 3919.6ms InterpolantComputationTime, 274 NumberOfCodeBlocks, 274 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 257 ConstructedInterpolants, 15 QuantifiedInterpolants, 3349 SizeOfPredicates, 43 NumberOfNonLiveVariables, 638 ConjunctsInSsa, 146 ConjunctsInUnsatCore, 17 InterpolantComputations, 4 PerfectInterpolantSequences, 63/132 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...