/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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 22:06:05,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 22:06:05,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 22:06:05,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 22:06:05,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 22:06:05,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 22:06:05,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 22:06:05,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 22:06:05,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 22:06:05,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 22:06:05,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 22:06:05,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 22:06:05,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 22:06:05,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 22:06:05,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 22:06:05,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 22:06:05,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 22:06:05,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 22:06:05,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 22:06:05,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 22:06:05,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 22:06:05,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 22:06:05,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 22:06:05,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 22:06:05,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 22:06:05,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 22:06:05,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 22:06:05,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 22:06:05,694 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-Delay.epf [2021-02-19 22:06:05,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 22:06:05,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 22:06:05,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 22:06:05,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 22:06:05,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 22:06:05,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 22:06:05,723 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 22:06:05,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 22:06:05,723 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 22:06:05,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 22:06:05,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 22:06:05,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 22:06:05,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 22:06:05,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 22:06:05,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 22:06:05,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 22:06:05,726 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 22:06:05,726 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 22:06:05,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 22:06:05,726 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 22:06:05,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 22:06:05,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 22:06:05,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 22:06:05,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 22:06:05,975 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 22:06:05,976 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 22:06:05,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl [2021-02-19 22:06:05,977 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl' [2021-02-19 22:06:06,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 22:06:06,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 22:06:06,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 22:06:06,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 22:06:06,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 22:06:06,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 22:06:06,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 22:06:06,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 22:06:06,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 22:06:06,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/1) ... [2021-02-19 22:06:06,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 22:06:06,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 22:06:06,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 22:06:06,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 22:06:06,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (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 [2021-02-19 22:06:06,090 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 22:06:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 22:06:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 22:06:06,090 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 22:06:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 22:06:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 22:06:06,091 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 22:06:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 22:06:06,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 22:06:06,091 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 22:06:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 22:06:06,091 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 22:06:06,091 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 22:06:06,208 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 22:06:06,208 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 22:06:06,209 INFO L202 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:06:06 BoogieIcfgContainer [2021-02-19 22:06:06,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 22:06:06,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 22:06:06,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 22:06:06,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 22:06:06,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:06" (1/2) ... [2021-02-19 22:06:06,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22100873 and model type array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:06:06, skipping insertion in model container [2021-02-19 22:06:06,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:06:06" (2/2) ... [2021-02-19 22:06:06,223 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum.wvr.bpl [2021-02-19 22:06:06,227 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 22:06:06,227 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 22:06:06,229 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 22:06:06,229 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 22:06:06,272 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 22:06:06,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 22:06:06,298 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 22:06:06,298 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 22:06:06,298 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 22:06:06,298 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 22:06:06,298 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 22:06:06,298 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 22:06:06,298 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 22:06:06,298 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 22:06:06,362 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:06,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:06,366 INFO L82 PathProgramCache]: Analyzing trace with hash 584107953, now seen corresponding path program 1 times [2021-02-19 22:06:06,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:06,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75858011] [2021-02-19 22:06:06,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:06,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75858011] [2021-02-19 22:06:06,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 22:06:06,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 22:06:06,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323121139] [2021-02-19 22:06:06,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 22:06:06,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:06,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 22:06:06,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 22:06:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:06,535 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:06,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-02-19 22:06:06,540 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:06,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 22:06:06,614 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:06,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:06,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1891347274, now seen corresponding path program 1 times [2021-02-19 22:06:06,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:06,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517302735] [2021-02-19 22:06:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:06,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:06:06,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517302735] [2021-02-19 22:06:06,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 22:06:06,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 22:06:06,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842846063] [2021-02-19 22:06:06,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 22:06:06,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:06,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 22:06:06,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 22:06:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:06,673 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:06,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2021-02-19 22:06:06,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:06,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:06,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:06,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 22:06:06,727 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:06,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:06,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1801154699, now seen corresponding path program 1 times [2021-02-19 22:06:06,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:06,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395145320] [2021-02-19 22:06:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:07,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395145320] [2021-02-19 22:06:07,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166661070] [2021-02-19 22:06:07,151 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 [2021-02-19 22:06:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:07,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-19 22:06:07,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:07,420 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 28 treesize of output 22 [2021-02-19 22:06:07,422 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:06:07,427 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:06:07,427 INFO L518 ElimStorePlain]: Eliminatee B vanished before elimination [2021-02-19 22:06:07,429 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 22:06:07,429 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:7 [2021-02-19 22:06:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:07,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:07,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-02-19 22:06:07,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408841343] [2021-02-19 22:06:07,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-19 22:06:07,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:07,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-19 22:06:07,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-02-19 22:06:07,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:07,458 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:07,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 22:06:07,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:07,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:07,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:07,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:07,914 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:07,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:07,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1286628816, now seen corresponding path program 2 times [2021-02-19 22:06:07,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:07,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944830014] [2021-02-19 22:06:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:07,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944830014] [2021-02-19 22:06:07,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607070146] [2021-02-19 22:06:07,973 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 [2021-02-19 22:06:07,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:06:07,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:06:08,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 22:06:08,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:08,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:08,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-02-19 22:06:08,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518934315] [2021-02-19 22:06:08,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 22:06:08,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:08,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 22:06:08,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-19 22:06:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:08,108 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:08,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-02-19 22:06:08,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:08,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:08,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:08,112 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:08,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:08,460 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:08,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1053948048, now seen corresponding path program 1 times [2021-02-19 22:06:08,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:08,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332034339] [2021-02-19 22:06:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:06:08,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332034339] [2021-02-19 22:06:08,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829107707] [2021-02-19 22:06:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-02-19 22:06:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:08,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 22:06:08,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:06:08,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:08,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-02-19 22:06:08,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533026609] [2021-02-19 22:06:08,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 22:06:08,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:08,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 22:06:08,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-02-19 22:06:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:08,662 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:08,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-02-19 22:06:08,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:08,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:08,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:08,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:08,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:08,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:08,963 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:08,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1123278613, now seen corresponding path program 2 times [2021-02-19 22:06:08,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:08,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373522107] [2021-02-19 22:06:08,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:09,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373522107] [2021-02-19 22:06:09,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417910006] [2021-02-19 22:06:09,424 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 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 [2021-02-19 22:06:09,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:06:09,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:06:09,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-02-19 22:06:09,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:10,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:06:10,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:10,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:10,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2021-02-19 22:06:10,004 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:06:10,009 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:06:10,011 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:06:10,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2021-02-19 22:06:10,012 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:06:10,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:06:10,018 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 22:06:10,018 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:3 [2021-02-19 22:06:10,045 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:10,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:10,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-02-19 22:06:10,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603595468] [2021-02-19 22:06:10,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-19 22:06:10,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:10,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-19 22:06:10,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2021-02-19 22:06:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:10,046 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:10,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 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) [2021-02-19 22:06:10,046 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:10,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:10,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:10,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:10,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:10,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:10,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:10,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-02-19 22:06:10,960 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:10,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:10,960 INFO L82 PathProgramCache]: Analyzing trace with hash -286632272, now seen corresponding path program 3 times [2021-02-19 22:06:10,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:10,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095276810] [2021-02-19 22:06:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:11,020 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:11,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095276810] [2021-02-19 22:06:11,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991271727] [2021-02-19 22:06:11,020 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 22:06:11,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-19 22:06:11,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:06:11,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:11,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:11,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:11,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-02-19 22:06:11,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006045480] [2021-02-19 22:06:11,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-19 22:06:11,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:11,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-19 22:06:11,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-02-19 22:06:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:11,196 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:11,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 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) [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:11,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:11,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:06:11,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:11,858 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:11,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1286880912, now seen corresponding path program 4 times [2021-02-19 22:06:11,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:11,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351528424] [2021-02-19 22:06:11,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:06:11,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351528424] [2021-02-19 22:06:11,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733490305] [2021-02-19 22:06:11,933 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-02-19 22:06:11,970 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:06:11,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:06:11,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:11,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:06:12,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:12,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-02-19 22:06:12,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288781833] [2021-02-19 22:06:12,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-19 22:06:12,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:12,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-19 22:06:12,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-19 22:06:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:12,092 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:12,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 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) [2021-02-19 22:06:12,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:12,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:12,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:12,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:12,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:12,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:12,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:06:12,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:06:12,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:06:12,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:06:12,458 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:12,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:12,458 INFO L82 PathProgramCache]: Analyzing trace with hash -333629109, now seen corresponding path program 5 times [2021-02-19 22:06:12,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:12,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111068052] [2021-02-19 22:06:12,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:13,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111068052] [2021-02-19 22:06:13,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132377055] [2021-02-19 22:06:13,272 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 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 [2021-02-19 22:06:13,298 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-02-19 22:06:13,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:06:13,299 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-02-19 22:06:13,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:14,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:14,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:06:14,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 47 [2021-02-19 22:06:14,265 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:06:14,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:06:14,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:06:14,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2021-02-19 22:06:14,271 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:06:14,275 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:06:14,276 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-02-19 22:06:14,276 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:3 [2021-02-19 22:06:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:14,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:06:14,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-02-19 22:06:14,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285181970] [2021-02-19 22:06:14,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-02-19 22:06:14,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:06:14,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-02-19 22:06:14,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-02-19 22:06:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:14,326 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:06:14,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 46 states have internal predecessors, (87), 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) [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:06:14,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:06:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:06:16,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:06:16,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-02-19 22:06:16,702 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:06:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:06:16,702 INFO L82 PathProgramCache]: Analyzing trace with hash 100446065, now seen corresponding path program 6 times [2021-02-19 22:06:16,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:06:16,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191174315] [2021-02-19 22:06:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:06:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:06:17,829 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:06:17,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191174315] [2021-02-19 22:06:17,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369676551] [2021-02-19 22:06:17,829 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 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 [2021-02-19 22:06:17,858 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-02-19 22:06:17,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:06:17,859 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 60 conjunts are in the unsatisfiable core [2021-02-19 22:06:17,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:06:19,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:19,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:06:20,008 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:06:20,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 35 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 91 treesize of output 241 Received shutdown request... [2021-02-19 22:15:53,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-02-19 22:15:53,693 WARN L545 AbstractCegarLoop]: Verification canceled [2021-02-19 22:15:53,696 WARN L224 ceAbstractionStarter]: Timeout [2021-02-19 22:15:53,696 INFO L202 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:15:53 BasicIcfg [2021-02-19 22:15:53,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 22:15:53,696 INFO L168 Benchmark]: Toolchain (without parser) took 587688.36 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 236.7 MB in the beginning and 391.2 MB in the end (delta: -154.5 MB). Peak memory consumption was 454.5 MB. Max. memory is 16.0 GB. [2021-02-19 22:15:53,696 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory was 237.9 MB in the beginning and 237.8 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 22:15:53,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.59 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 22:15:53,697 INFO L168 Benchmark]: Boogie Preprocessor took 13.42 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-02-19 22:15:53,697 INFO L168 Benchmark]: RCFGBuilder took 165.72 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 237.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.0 GB. [2021-02-19 22:15:53,697 INFO L168 Benchmark]: TraceAbstraction took 587476.05 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 237.5 MB in the beginning and 391.2 MB in the end (delta: -153.7 MB). Peak memory consumption was 455.7 MB. Max. memory is 16.0 GB. [2021-02-19 22:15:53,697 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 0.10 ms. Allocated memory is still 255.9 MB. Free memory was 237.9 MB in the beginning and 237.8 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.59 ms. Allocated memory is still 255.9 MB. Free memory was 236.2 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.42 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 165.72 ms. Allocated memory is still 255.9 MB. Free memory was 233.7 MB in the beginning and 237.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 587476.05 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 237.5 MB in the beginning and 391.2 MB in the end (delta: -153.7 MB). Peak memory consumption was 455.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 59). Cancelled while PartialOrderCegarLoop was analyzing trace of length 55 with TraceHistMax 6,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while ExplicitLhsPolynomialRelations was build 0 of 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 587.4s, OverallIterations: 10, 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, 0.1s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 543 NumberOfCodeBlocks, 543 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 527 ConstructedInterpolants, 14 QuantifiedInterpolants, 358586 SizeOfPredicates, 35 NumberOfNonLiveVariables, 532 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 86/337 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 could not prove your program: Timeout Completed graceful shutdown