/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-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-20 00:13:43,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-20 00:13:43,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-20 00:13:43,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-20 00:13:43,287 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-Sleep-NoLbe-New_States.epf [2021-02-20 00:13:43,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-20 00:13:43,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-20 00:13:43,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-20 00:13:43,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-20 00:13:43,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-20 00:13:43,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-20 00:13:43,317 INFO L138 SettingsManager]: * Use SBE=true [2021-02-20 00:13:43,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-20 00:13:43,317 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-20 00:13:43,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-20 00:13:43,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-20 00:13:43,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-20 00:13:43,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-20 00:13:43,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-20 00:13:43,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-20 00:13:43,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-20 00:13:43,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-20 00:13:43,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-20 00:13:43,320 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-02-20 00:13:43,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-20 00:13:43,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-20 00:13:43,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-20 00:13:43,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-20 00:13:43,577 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-20 00:13:43,578 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-20 00:13:43,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl [2021-02-20 00:13:43,579 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/nzb-file-symm.wvr.bpl' [2021-02-20 00:13:43,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-20 00:13:43,613 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-20 00:13:43,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-20 00:13:43,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-20 00:13:43,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-20 00:13:43,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-20 00:13:43,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-20 00:13:43,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-20 00:13:43,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-20 00:13:43,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/1) ... [2021-02-20 00:13:43,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-20 00:13:43,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-20 00:13:43,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-20 00:13:43,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-20 00:13:43,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (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 [2021-02-20 00:13:43,720 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-20 00:13:43,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-20 00:13:43,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-20 00:13:43,720 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-20 00:13:43,720 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-20 00:13:43,720 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-20 00:13:43,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-20 00:13:43,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-20 00:13:43,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-20 00:13:43,721 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-20 00:13:43,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-20 00:13:43,966 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-20 00:13:43,968 INFO L202 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:13:43 BoogieIcfgContainer [2021-02-20 00:13:43,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-20 00:13:43,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-20 00:13:43,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-20 00:13:43,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-20 00:13:43,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:13:43" (1/2) ... [2021-02-20 00:13:43,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fca47b and model type nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:13:43, skipping insertion in model container [2021-02-20 00:13:43,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:13:43" (2/2) ... [2021-02-20 00:13:43,972 INFO L111 eAbstractionObserver]: Analyzing ICFG nzb-file-symm.wvr.bpl [2021-02-20 00:13:43,975 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-20 00:13:43,976 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-20 00:13:43,978 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-20 00:13:43,978 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-20 00:13:44,000 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-20 00:13:44,011 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) [2021-02-20 00:13:44,059 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-20 00:13:44,059 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-20 00:13:44,059 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-20 00:13:44,059 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-20 00:13:44,059 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-20 00:13:44,059 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-20 00:13:44,059 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-20 00:13:44,059 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-20 00:13:44,084 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:44,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:44,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1003064909, now seen corresponding path program 1 times [2021-02-20 00:13:44,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:44,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300722504] [2021-02-20 00:13:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:44,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300722504] [2021-02-20 00:13:44,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:13:44,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-20 00:13:44,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107763830] [2021-02-20 00:13:44,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:44,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:44,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:44,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-20 00:13:44,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:44,231 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:44,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-02-20 00:13:44,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:44,272 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,272 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,289 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,289 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,302 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,302 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,324 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,324 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,338 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,338 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,352 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,353 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:44,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-20 00:13:44,369 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:44,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:44,371 INFO L82 PathProgramCache]: Analyzing trace with hash -728867281, now seen corresponding path program 1 times [2021-02-20 00:13:44,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:44,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439157871] [2021-02-20 00:13:44,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:13:44,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439157871] [2021-02-20 00:13:44,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:13:44,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-20 00:13:44,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291149357] [2021-02-20 00:13:44,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-20 00:13:44,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:44,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-20 00:13:44,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-20 00:13:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:44,441 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:44,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-02-20 00:13:44,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:44,444 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:44,451 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,451 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:44,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-20 00:13:44,471 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:44,472 INFO L82 PathProgramCache]: Analyzing trace with hash -294431001, now seen corresponding path program 1 times [2021-02-20 00:13:44,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:44,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284801300] [2021-02-20 00:13:44,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:44,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284801300] [2021-02-20 00:13:44,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004872379] [2021-02-20 00:13:44,829 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 [2021-02-20 00:13:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:44,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 25 conjunts are in the unsatisfiable core [2021-02-20 00:13:44,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:45,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:45,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-02-20 00:13:45,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775099427] [2021-02-20 00:13:45,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-20 00:13:45,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:45,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-20 00:13:45,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-02-20 00:13:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:45,181 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:45,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 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) [2021-02-20 00:13:45,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:45,319 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,319 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:45,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:45,554 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:45,555 INFO L82 PathProgramCache]: Analyzing trace with hash 810223207, now seen corresponding path program 2 times [2021-02-20 00:13:45,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:45,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463799939] [2021-02-20 00:13:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:13:45,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463799939] [2021-02-20 00:13:45,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924335795] [2021-02-20 00:13:45,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:45,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:13:45,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:45,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2021-02-20 00:13:45,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-20 00:13:45,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:45,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-02-20 00:13:45,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48340298] [2021-02-20 00:13:45,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-20 00:13:45,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:45,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-20 00:13:45,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-02-20 00:13:45,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:45,728 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:45,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-02-20 00:13:45,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:45,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:45,771 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,771 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,781 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,781 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,792 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,792 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,803 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,803 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:45,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:46,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-02-20 00:13:46,030 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:46,031 INFO L82 PathProgramCache]: Analyzing trace with hash 172733871, now seen corresponding path program 3 times [2021-02-20 00:13:46,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:46,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609392678] [2021-02-20 00:13:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:46,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609392678] [2021-02-20 00:13:46,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992718939] [2021-02-20 00:13:46,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:46,147 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-20 00:13:46,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:46,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2021-02-20 00:13:46,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:46,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:46,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-02-20 00:13:46,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386284001] [2021-02-20 00:13:46,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-20 00:13:46,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:46,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-20 00:13:46,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-20 00:13:46,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:46,217 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:46,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2021-02-20 00:13:46,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:46,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:46,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:46,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:46,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:46,279 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,279 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,287 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,287 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,295 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,295 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,302 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,302 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:46,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:46,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-02-20 00:13:46,527 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:46,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:46,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1885400935, now seen corresponding path program 4 times [2021-02-20 00:13:46,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:46,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704623029] [2021-02-20 00:13:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:46,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704623029] [2021-02-20 00:13:46,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090848379] [2021-02-20 00:13:46,898 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:46,930 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 00:13:46,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:46,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 33 conjunts are in the unsatisfiable core [2021-02-20 00:13:46,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:47,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:47,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:47,823 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 9 treesize of output 1 [2021-02-20 00:13:47,824 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:47,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:47,828 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 10 treesize of output 1 [2021-02-20 00:13:47,828 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,831 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-20 00:13:47,832 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,834 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-20 00:13:47,835 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,896 INFO L628 ElimStorePlain]: treesize reduction 105, result has 37.5 percent of original size [2021-02-20 00:13:47,898 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 6 treesize of output 2 [2021-02-20 00:13:47,899 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,923 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:47,925 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 6 treesize of output 2 [2021-02-20 00:13:47,926 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,944 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:47,946 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 1 [2021-02-20 00:13:47,948 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:47,965 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:47,966 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-20 00:13:47,966 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:284, output treesize:46 [2021-02-20 00:13:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:48,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:48,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-02-20 00:13:48,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349435443] [2021-02-20 00:13:48,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-20 00:13:48,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:48,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-20 00:13:48,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2021-02-20 00:13:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:48,070 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:48,071 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) [2021-02-20 00:13:48,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:48,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:48,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:48,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:48,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:48,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:48,367 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-02-20 00:13:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:48,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:48,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-02-20 00:13:48,662 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:48,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:48,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2120446237, now seen corresponding path program 5 times [2021-02-20 00:13:48,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:48,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756683030] [2021-02-20 00:13:48,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:48,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756683030] [2021-02-20 00:13:48,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615386637] [2021-02-20 00:13:48,744 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:48,791 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-02-20 00:13:48,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:48,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjunts are in the unsatisfiable core [2021-02-20 00:13:48,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:48,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:48,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2021-02-20 00:13:48,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142743788] [2021-02-20 00:13:48,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-20 00:13:48,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:48,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-20 00:13:48,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-02-20 00:13:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:48,866 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:48,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 00:13:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:48,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:48,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:48,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:48,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:48,867 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:48,966 WARN L313 ript$VariableManager]: TermVariabe v_break_13_65 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:48,966 WARN L313 ript$VariableManager]: TermVariabe v_break_13_66 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:48,992 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:48,992 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:49,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:49,207 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:49,208 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:49,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:49,208 INFO L82 PathProgramCache]: Analyzing trace with hash -483705677, now seen corresponding path program 6 times [2021-02-20 00:13:49,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:49,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550067817] [2021-02-20 00:13:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:49,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550067817] [2021-02-20 00:13:49,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307003187] [2021-02-20 00:13:49,522 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:49,580 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-02-20 00:13:49,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:49,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 37 conjunts are in the unsatisfiable core [2021-02-20 00:13:49,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:50,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:50,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:50,389 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 2 [2021-02-20 00:13:50,390 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,393 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-20 00:13:50,393 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:50,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:50,397 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 10 treesize of output 1 [2021-02-20 00:13:50,397 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-20 00:13:50,400 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,454 INFO L628 ElimStorePlain]: treesize reduction 120, result has 33.3 percent of original size [2021-02-20 00:13:50,456 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 1 [2021-02-20 00:13:50,458 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:50,481 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 3 treesize of output 1 [2021-02-20 00:13:50,482 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:50,505 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 6 treesize of output 2 [2021-02-20 00:13:50,506 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:50,525 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:50,526 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-02-20 00:13:50,526 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:284, output treesize:46 [2021-02-20 00:13:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:50,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:50,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-02-20 00:13:50,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816769216] [2021-02-20 00:13:50,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-20 00:13:50,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:50,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-20 00:13:50,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2021-02-20 00:13:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:50,612 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:50,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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) [2021-02-20 00:13:50,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:50,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:50,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:50,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:50,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:50,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:50,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:50,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:50,936 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:50,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:51,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-02-20 00:13:51,178 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:51,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:51,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1812140753, now seen corresponding path program 7 times [2021-02-20 00:13:51,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:51,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587641393] [2021-02-20 00:13:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:51,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587641393] [2021-02-20 00:13:51,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758894078] [2021-02-20 00:13:51,306 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 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 [2021-02-20 00:13:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:51,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 25 conjunts are in the unsatisfiable core [2021-02-20 00:13:51,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:51,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:51,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 16 [2021-02-20 00:13:51,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940540273] [2021-02-20 00:13:51,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-20 00:13:51,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:51,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-20 00:13:51,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-02-20 00:13:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,437 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:51,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 1.5625) internal successors, (25), 16 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) [2021-02-20 00:13:51,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:51,437 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:51,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:51,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:51,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:51,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:51,438 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:51,604 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:51,604 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:51,826 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable311 [2021-02-20 00:13:51,826 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:51,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:51,826 INFO L82 PathProgramCache]: Analyzing trace with hash 483829735, now seen corresponding path program 8 times [2021-02-20 00:13:51,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:51,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597583770] [2021-02-20 00:13:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:52,215 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:52,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597583770] [2021-02-20 00:13:52,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029315190] [2021-02-20 00:13:52,215 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 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 [2021-02-20 00:13:52,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-20 00:13:52,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:52,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 37 conjunts are in the unsatisfiable core [2021-02-20 00:13:52,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:52,886 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:52,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:52,887 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 9 treesize of output 1 [2021-02-20 00:13:52,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:52,891 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:52,891 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-20 00:13:52,892 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 10 treesize of output 1 [2021-02-20 00:13:52,892 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:52,895 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-20 00:13:52,895 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:52,898 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-02-20 00:13:52,898 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:52,946 INFO L628 ElimStorePlain]: treesize reduction 96, result has 39.2 percent of original size [2021-02-20 00:13:52,948 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 1 [2021-02-20 00:13:52,949 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:52,966 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:52,968 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 6 treesize of output 2 [2021-02-20 00:13:52,970 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:52,986 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:52,988 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 6 treesize of output 2 [2021-02-20 00:13:52,989 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-20 00:13:53,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-20 00:13:53,005 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-02-20 00:13:53,005 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:265, output treesize:45 [2021-02-20 00:13:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-20 00:13:53,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-20 00:13:53,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-02-20 00:13:53,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256895041] [2021-02-20 00:13:53,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-20 00:13:53,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:53,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-20 00:13:53,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-02-20 00:13:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:53,113 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:53,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:53,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:53,362 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:53,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:53,595 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:53,595 INFO L82 PathProgramCache]: Analyzing trace with hash -536991389, now seen corresponding path program 9 times [2021-02-20 00:13:53,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:53,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687234297] [2021-02-20 00:13:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-02-20 00:13:53,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687234297] [2021-02-20 00:13:53,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-20 00:13:53,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-20 00:13:53,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823978207] [2021-02-20 00:13:53,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-20 00:13:53,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:53,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-20 00:13:53,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-02-20 00:13:53,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:53,636 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:53,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:53,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:53,785 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-02-20 00:13:53,940 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-02-20 00:13:54,089 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-02-20 00:13:54,218 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-02-20 00:13:54,348 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2021-02-20 00:13:54,544 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2021-02-20 00:13:54,753 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2021-02-20 00:13:54,779 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:54,779 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:54,818 WARN L313 ript$VariableManager]: TermVariabe v_break_10_64 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:54,818 WARN L313 ript$VariableManager]: TermVariabe v_break_10_63 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-20 00:13:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-02-20 00:13:54,837 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:54,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1355529169, now seen corresponding path program 10 times [2021-02-20 00:13:54,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:54,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799979788] [2021-02-20 00:13:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-20 00:13:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-02-20 00:13:54,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799979788] [2021-02-20 00:13:54,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919521512] [2021-02-20 00:13:54,872 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-20 00:13:54,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-20 00:13:54,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-20 00:13:54,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-20 00:13:54,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-20 00:13:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-02-20 00:13:54,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-02-20 00:13:54,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2021-02-20 00:13:54,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804946540] [2021-02-20 00:13:54,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-20 00:13:54,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-20 00:13:54,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-20 00:13:54,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-02-20 00:13:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:54,954 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-20 00:13:54,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-20 00:13:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:54,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-20 00:13:55,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable364 [2021-02-20 00:13:55,212 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-20 00:13:55,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-20 00:13:55,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2028978651, now seen corresponding path program 1 times [2021-02-20 00:13:55,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-20 00:13:55,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886405641] [2021-02-20 00:13:55,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-20 00:13:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-20 00:13:55,228 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-20 00:13:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-20 00:13:55,239 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-20 00:13:55,249 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-20 00:13:55,249 INFO L607 BasicCegarLoop]: Counterexample might be feasible [2021-02-20 00:13:55,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-02-20 00:13:55,260 INFO L202 PluginConnector]: Adding new model nzb-file-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 12:13:55 BasicIcfg [2021-02-20 00:13:55,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-20 00:13:55,261 INFO L168 Benchmark]: Toolchain (without parser) took 11650.16 ms. Allocated memory was 255.9 MB in the beginning and 520.1 MB in the end (delta: 264.2 MB). Free memory was 236.1 MB in the beginning and 245.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 255.5 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:55,261 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.4 MB in the beginning and 237.3 MB in the end (delta: 90.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:13:55,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 255.9 MB. Free memory was 235.5 MB in the beginning and 234.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:13:55,261 INFO L168 Benchmark]: Boogie Preprocessor took 23.73 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 233.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-20 00:13:55,261 INFO L168 Benchmark]: RCFGBuilder took 297.65 ms. Allocated memory is still 255.9 MB. Free memory was 232.9 MB in the beginning and 220.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:55,261 INFO L168 Benchmark]: TraceAbstraction took 11291.94 ms. Allocated memory was 255.9 MB in the beginning and 520.1 MB in the end (delta: 264.2 MB). Free memory was 220.1 MB in the beginning and 245.7 MB in the end (delta: -25.7 MB). Peak memory consumption was 237.0 MB. Max. memory is 16.0 GB. [2021-02-20 00:13:55,262 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 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.4 MB in the beginning and 237.3 MB in the end (delta: 90.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 255.9 MB. Free memory was 235.5 MB in the beginning and 234.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.73 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 233.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 297.65 ms. Allocated memory is still 255.9 MB. Free memory was 232.9 MB in the beginning and 220.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11291.94 ms. Allocated memory was 255.9 MB in the beginning and 520.1 MB in the end (delta: 264.2 MB). Free memory was 220.1 MB in the beginning and 245.7 MB in the end (delta: -25.7 MB). Peak memory consumption was 237.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 99]: assertion can be violated assertion can be violated We found a FailurePath: [L94] FORK 0 fork 1 thread1(); [L28] 1 assume !is_null_1 && !is_null_5; [L29] 1 i_9 := 0; [L30] 1 break_10 := false; VAL [break_10=false, i_9=0, is_null_1=false, is_null_5=false] [L34] 1 assume i_9 < 5 && !break_10; [L35] 1 result_8 := (if ends_with_2[i_9] && ends_with_6[i_9] then 0 else result_8); [L36] 1 break_10 := (if ends_with_2[i_9] && ends_with_6[i_9] then true else break_10); [L37] 1 result_8 := (if !break_10 && ends_with_2[i_9] then 0 - 1000 + i_9 else result_8); [L38] 1 break_10 := (if !break_10 && ends_with_2[i_9] then true else break_10); [L39] 1 result_8 := (if !break_10 && ends_with_6[i_9] then 1000 + i_9 else result_8); [L40] 1 break_10 := (if !break_10 && ends_with_6[i_9] then true else break_10); [L41] 1 i_9 := i_9 + 1; VAL [break_10=false, i_9=1, is_null_1=false, is_null_5=false, result_8=1004] [L34] 1 assume i_9 < 5 && !break_10; [L35] 1 result_8 := (if ends_with_2[i_9] && ends_with_6[i_9] then 0 else result_8); [L36] 1 break_10 := (if ends_with_2[i_9] && ends_with_6[i_9] then true else break_10); [L37] 1 result_8 := (if !break_10 && ends_with_2[i_9] then 0 - 1000 + i_9 else result_8); [L38] 1 break_10 := (if !break_10 && ends_with_2[i_9] then true else break_10); [L39] 1 result_8 := (if !break_10 && ends_with_6[i_9] then 1000 + i_9 else result_8); [L40] 1 break_10 := (if !break_10 && ends_with_6[i_9] then true else break_10); [L41] 1 i_9 := i_9 + 1; VAL [break_10=false, i_9=2, is_null_1=false, is_null_5=false, result_8=1004] [L34] 1 assume i_9 < 5 && !break_10; [L35] 1 result_8 := (if ends_with_2[i_9] && ends_with_6[i_9] then 0 else result_8); [L36] 1 break_10 := (if ends_with_2[i_9] && ends_with_6[i_9] then true else break_10); [L37] 1 result_8 := (if !break_10 && ends_with_2[i_9] then 0 - 1000 + i_9 else result_8); [L38] 1 break_10 := (if !break_10 && ends_with_2[i_9] then true else break_10); [L39] 1 result_8 := (if !break_10 && ends_with_6[i_9] then 1000 + i_9 else result_8); [L40] 1 break_10 := (if !break_10 && ends_with_6[i_9] then true else break_10); [L41] 1 i_9 := i_9 + 1; VAL [break_10=false, i_9=3, is_null_1=false, is_null_5=false, result_8=1004] [L34] 1 assume i_9 < 5 && !break_10; [L35] 1 result_8 := (if ends_with_2[i_9] && ends_with_6[i_9] then 0 else result_8); [L36] 1 break_10 := (if ends_with_2[i_9] && ends_with_6[i_9] then true else break_10); [L37] 1 result_8 := (if !break_10 && ends_with_2[i_9] then 0 - 1000 + i_9 else result_8); [L38] 1 break_10 := (if !break_10 && ends_with_2[i_9] then true else break_10); [L39] 1 result_8 := (if !break_10 && ends_with_6[i_9] then 1000 + i_9 else result_8); [L40] 1 break_10 := (if !break_10 && ends_with_6[i_9] then true else break_10); [L41] 1 i_9 := i_9 + 1; VAL [break_10=false, i_9=4, is_null_1=false, is_null_5=false, result_8=1004] [L34] 1 assume i_9 < 5 && !break_10; [L35] 1 result_8 := (if ends_with_2[i_9] && ends_with_6[i_9] then 0 else result_8); [L36] 1 break_10 := (if ends_with_2[i_9] && ends_with_6[i_9] then true else break_10); [L37] 1 result_8 := (if !break_10 && ends_with_2[i_9] then 0 - 1000 + i_9 else result_8); [L38] 1 break_10 := (if !break_10 && ends_with_2[i_9] then true else break_10); [L39] 1 result_8 := (if !break_10 && ends_with_6[i_9] then 1000 + i_9 else result_8); [L40] 1 break_10 := (if !break_10 && ends_with_6[i_9] then true else break_10); [L41] 1 i_9 := i_9 + 1; VAL [break_10=true, i_9=5, is_null_1=false, is_null_5=false, result_8=1004] [L45] 1 assume !(i_9 < 5 && !break_10); [L46] 1 result_8 := (if !break_10 then filename_0 - filename_4 else result_8); VAL [break_10=true, filename_0=1004, filename_4=0, i_9=5, is_null_1=false, is_null_5=false, result_8=1004] [L95] FORK 0 fork 2, 2 thread2(); VAL [break_10=true, filename_0=1004, filename_4=0, get_subject_3=1, get_subject_7=0, i_9=5, is_null_1=false, is_null_5=false, result_11=5, result_8=1004] [L96] JOIN 1 join 1; VAL [break_10=true, filename_0=1004, filename_4=0, get_subject_3=1, get_subject_7=0, i_9=5, is_null_1=false, is_null_5=false, result_11=5, result_8=1004] [L97] JOIN 2 join 2, 2; VAL [break_10=true, filename_0=1004, filename_4=0, get_subject_3=1, get_subject_7=0, i_9=5, is_null_1=false, is_null_5=false, result_11=5, result_8=1004] [L98] 0 assume !((if result_8 < 0 then -1 else (if result_8 > 0 then 1 else 0)) == 0 - (if result_11 < 0 then -1 else (if result_11 > 0 then 1 else 0))); VAL [break_10=true, filename_0=1004, filename_4=0, get_subject_3=1, get_subject_7=0, i_9=5, is_null_1=false, is_null_5=false, result_11=5, result_8=1004] [L99] 0 assert false; VAL [break_10=true, filename_0=1004, filename_4=0, get_subject_3=1, get_subject_7=0, i_9=5, is_null_1=false, is_null_5=false, result_11=5, result_8=1004] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 404 NumberOfCodeBlocks, 404 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 367 ConstructedInterpolants, 24 QuantifiedInterpolants, 105880 SizeOfPredicates, 46 NumberOfNonLiveVariables, 864 ConjunctsInSsa, 215 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 116/351 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 incorrect! Received shutdown request...