/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 19:58:06,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 19:58:06,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 19:58:06,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 19:58:06,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-05-03 19:58:06,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 19:58:06,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 19:58:06,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 19:58:06,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 19:58:06,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 19:58:06,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 19:58:06,686 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 19:58:06,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 19:58:06,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 19:58:06,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 19:58:06,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 19:58:06,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 19:58:06,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 19:58:06,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 19:58:06,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 19:58:06,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 19:58:06,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 19:58:06,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 19:58:06,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 19:58:06,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 19:58:06,691 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-05-03 19:58:06,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 19:58:07,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 19:58:07,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 19:58:07,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 19:58:07,079 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 19:58:07,080 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 19:58:07,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl [2021-05-03 19:58:07,082 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl' [2021-05-03 19:58:07,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 19:58:07,125 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 19:58:07,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 19:58:07,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 19:58:07,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 19:58:07,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 19:58:07,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 19:58:07,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 19:58:07,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 19:58:07,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... [2021-05-03 19:58:07,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 19:58:07,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 19:58:07,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 19:58:07,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 19:58:07,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 19:58:07,251 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 19:58:07,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 19:58:07,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 19:58:07,251 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 19:58:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 19:58:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 19:58:07,252 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 19:58:07,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 19:58:07,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 19:58:07,253 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 19:58:07,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 19:58:07,591 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 19:58:07,594 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 07:58:07 BoogieIcfgContainer [2021-05-03 19:58:07,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 19:58:07,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 19:58:07,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 19:58:07,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 19:58:07,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 07:58:07" (1/2) ... [2021-05-03 19:58:07,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a9c5188 and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 07:58:07, skipping insertion in model container [2021-05-03 19:58:07,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 07:58:07" (2/2) ... [2021-05-03 19:58:07,603 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-05-03 19:58:07,629 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 19:58:07,630 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 19:58:07,635 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 19:58:07,636 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 19:58:07,686 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-03 19:58:07,718 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-05-03 19:58:07,847 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 19:58:07,847 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 19:58:07,847 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 19:58:07,847 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 19:58:07,847 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 19:58:07,847 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 19:58:07,847 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 19:58:07,847 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 19:58:07,985 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:07,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1116390347, now seen corresponding path program 1 times [2021-05-03 19:58:08,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:08,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201838486] [2021-05-03 19:58:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:08,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:08,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201838486] [2021-05-03 19:58:08,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 19:58:08,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 19:58:08,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042938065] [2021-05-03 19:58:08,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 19:58:08,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:08,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 19:58:08,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 19:58:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:08,239 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:08,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-05-03 19:58:08,245 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 19:58:08,338 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:08,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1484219061, now seen corresponding path program 1 times [2021-05-03 19:58:08,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:08,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947418568] [2021-05-03 19:58:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:58:08,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947418568] [2021-05-03 19:58:08,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 19:58:08,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-03 19:58:08,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848614695] [2021-05-03 19:58:08,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 19:58:08,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:08,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 19:58:08,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 19:58:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:08,421 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:08,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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) [2021-05-03 19:58:08,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-03 19:58:08,441 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:08,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:08,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1675419287, now seen corresponding path program 2 times [2021-05-03 19:58:08,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:08,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150737716] [2021-05-03 19:58:08,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-03 19:58:08,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150737716] [2021-05-03 19:58:08,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 19:58:08,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-03 19:58:08,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18965314] [2021-05-03 19:58:08,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-03 19:58:08,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:08,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-03 19:58:08,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-03 19:58:08,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:08,492 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:08,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-05-03 19:58:08,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:08,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:08,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-03 19:58:08,526 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:08,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:08,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1507447386, now seen corresponding path program 1 times [2021-05-03 19:58:08,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:08,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076199766] [2021-05-03 19:58:08,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:08,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076199766] [2021-05-03 19:58:08,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89108473] [2021-05-03 19:58:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:08,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-05-03 19:58:08,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:09,043 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 13 treesize of output 9 [2021-05-03 19:58:09,055 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:09,061 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:09,066 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:58:09,066 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-05-03 19:58:09,130 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 11 treesize of output 7 [2021-05-03 19:58:09,138 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:09,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:09,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:58:09,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-05-03 19:58:09,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:09,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:09,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2021-05-03 19:58:09,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418455919] [2021-05-03 19:58:09,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 19:58:09,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:09,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 19:58:09,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-05-03 19:58:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:09,168 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:09,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:09,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,169 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:09,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:09,582 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:09,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:09,583 INFO L82 PathProgramCache]: Analyzing trace with hash 392188772, now seen corresponding path program 1 times [2021-05-03 19:58:09,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:09,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017700247] [2021-05-03 19:58:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 19:58:09,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017700247] [2021-05-03 19:58:09,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318669629] [2021-05-03 19:58:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:09,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-03 19:58:09,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 19:58:09,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:09,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-05-03 19:58:09,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812844247] [2021-05-03 19:58:09,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-03 19:58:09,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:09,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-03 19:58:09,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-05-03 19:58:09,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:09,781 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:09,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:09,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:09,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:10,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:10,037 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:10,038 INFO L82 PathProgramCache]: Analyzing trace with hash 696560499, now seen corresponding path program 2 times [2021-05-03 19:58:10,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:10,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581414636] [2021-05-03 19:58:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:10,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581414636] [2021-05-03 19:58:10,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840572886] [2021-05-03 19:58:10,364 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:10,401 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 19:58:10,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:10,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 23 conjunts are in the unsatisfiable core [2021-05-03 19:58:10,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:10,610 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:10,611 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 27 [2021-05-03 19:58:10,641 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:10,650 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:10,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 19:58:10,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:40, output treesize:26 [2021-05-03 19:58:10,821 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-05-03 19:58:10,822 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 10 [2021-05-03 19:58:10,824 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:10,828 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:10,829 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:58:10,830 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:5 [2021-05-03 19:58:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:10,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:10,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 23 [2021-05-03 19:58:10,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293498804] [2021-05-03 19:58:10,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 19:58:10,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:10,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 19:58:10,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2021-05-03 19:58:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:10,848 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:10,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:10,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:10,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:10,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:10,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:10,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:10,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:11,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:11,369 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:11,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:11,370 INFO L82 PathProgramCache]: Analyzing trace with hash -233153263, now seen corresponding path program 2 times [2021-05-03 19:58:11,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:11,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493583612] [2021-05-03 19:58:11,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 19:58:11,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493583612] [2021-05-03 19:58:11,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145264448] [2021-05-03 19:58:11,467 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 [2021-05-03 19:58:11,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 19:58:11,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:11,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-03 19:58:11,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 19:58:11,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:11,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 8 [2021-05-03 19:58:11,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283971869] [2021-05-03 19:58:11,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 19:58:11,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:11,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 19:58:11,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-03 19:58:11,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:11,621 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:11,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:11,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:11,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:11,904 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:11,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:11,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1353098016, now seen corresponding path program 3 times [2021-05-03 19:58:11,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:11,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312287533] [2021-05-03 19:58:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:12,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312287533] [2021-05-03 19:58:12,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857891729] [2021-05-03 19:58:12,432 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) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:12,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-05-03 19:58:12,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:12,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 36 conjunts are in the unsatisfiable core [2021-05-03 19:58:12,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:12,926 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:12,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 53 [2021-05-03 19:58:12,948 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:12,997 INFO L628 ElimStorePlain]: treesize reduction 43, result has 60.2 percent of original size [2021-05-03 19:58:13,002 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:58:13,003 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:56, output treesize:37 [2021-05-03 19:58:13,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:13,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:13,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:13,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 19:58:13,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 19:58:13,563 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:13,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 41 [2021-05-03 19:58:13,626 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-05-03 19:58:13,641 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:13,664 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:58:13,664 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:52, output treesize:21 [2021-05-03 19:58:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:13,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:13,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 39 [2021-05-03 19:58:13,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817508541] [2021-05-03 19:58:13,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-05-03 19:58:13,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:13,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-05-03 19:58:13,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2021-05-03 19:58:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:13,760 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:13,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 1.875) internal successors, (75), 39 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:13,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:13,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:13,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:13,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:13,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:13,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:13,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:13,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:15,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:15,087 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:15,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1578753977, now seen corresponding path program 4 times [2021-05-03 19:58:15,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:15,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428087845] [2021-05-03 19:58:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:15,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428087845] [2021-05-03 19:58:15,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191951146] [2021-05-03 19:58:15,918 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) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:15,956 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 19:58:15,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:15,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 47 conjunts are in the unsatisfiable core [2021-05-03 19:58:15,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:16,754 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:16,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 87 [2021-05-03 19:58:16,786 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:16,882 INFO L628 ElimStorePlain]: treesize reduction 51, result has 73.2 percent of original size [2021-05-03 19:58:16,917 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 19:58:16,917 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:72, output treesize:72 [2021-05-03 19:58:17,441 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-05-03 19:58:17,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 16 [2021-05-03 19:58:17,443 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:17,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:17,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 19:58:17,458 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:45, output treesize:5 [2021-05-03 19:58:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:17,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:17,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 26] total 49 [2021-05-03 19:58:17,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117722784] [2021-05-03 19:58:17,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-05-03 19:58:17,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:17,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-05-03 19:58:17,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2161, Unknown=0, NotChecked=0, Total=2450 [2021-05-03 19:58:17,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:17,483 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:17,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 50 states, 50 states have (on average 1.7) internal successors, (85), 49 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:17,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:17,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:17,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:17,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:17,484 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:18,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:18,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 19:58:19,138 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:19,139 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:19,139 INFO L82 PathProgramCache]: Analyzing trace with hash -964360489, now seen corresponding path program 3 times [2021-05-03 19:58:19,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:19,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486339818] [2021-05-03 19:58:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 19:58:19,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486339818] [2021-05-03 19:58:19,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180666284] [2021-05-03 19:58:19,293 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:19,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-03 19:58:19,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:19,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-03 19:58:19,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 45 proven. 45 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-05-03 19:58:19,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 19:58:19,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 12 [2021-05-03 19:58:19,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961419259] [2021-05-03 19:58:19,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 19:58:19,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 19:58:19,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 19:58:19,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-05-03 19:58:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:19,466 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 19:58:19,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 19:58:19,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:19,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:19,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:19,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:19,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-05-03 19:58:19,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 19:58:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 19:58:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 19:58:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 19:58:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 19:58:19,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-05-03 19:58:19,769 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 19:58:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 19:58:19,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1821942298, now seen corresponding path program 5 times [2021-05-03 19:58:19,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 19:58:19,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254610023] [2021-05-03 19:58:19,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 19:58:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 19:58:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 19:58:20,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254610023] [2021-05-03 19:58:20,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261460706] [2021-05-03 19:58:20,819 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 19:58:20,860 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 19:58:20,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 19:58:20,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 57 conjunts are in the unsatisfiable core [2021-05-03 19:58:20,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 19:58:22,170 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 19:58:22,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 127 [2021-05-03 19:58:22,195 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 19:58:22,322 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2021-05-03 19:58:22,323 INFO L628 ElimStorePlain]: treesize reduction 137, result has 58.5 percent of original size [2021-05-03 19:58:22,376 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 19:58:22,377 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:86, output treesize:57 [2021-05-03 19:58:28,207 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 42 [2021-05-03 19:58:33,529 WARN L205 SmtUtils]: Spent 5.16 s on a formula simplification that was a NOOP. DAG size: 62 [2021-05-03 19:58:39,347 WARN L205 SmtUtils]: Spent 5.37 s on a formula simplification that was a NOOP. DAG size: 66 [2021-05-03 19:59:11,810 WARN L205 SmtUtils]: Spent 30.47 s on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-03 19:59:24,757 WARN L205 SmtUtils]: Spent 10.45 s on a formula simplification that was a NOOP. DAG size: 88 [2021-05-03 19:59:43,840 WARN L205 SmtUtils]: Spent 14.19 s on a formula simplification that was a NOOP. DAG size: 88 [2021-05-03 20:00:17,956 WARN L205 SmtUtils]: Spent 31.76 s on a formula simplification. DAG size of input: 155 DAG size of output: 109 [2021-05-03 20:00:45,089 WARN L205 SmtUtils]: Spent 21.69 s on a formula simplification that was a NOOP. DAG size: 109 [2021-05-03 20:00:46,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,298 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,471 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,471 INFO L244 Elim1Store]: Index analysis took 376 ms [2021-05-03 20:00:46,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 22 [2021-05-03 20:00:46,484 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 20:00:46,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,803 INFO L244 Elim1Store]: Index analysis took 302 ms [2021-05-03 20:00:46,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 22 [2021-05-03 20:00:46,817 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-05-03 20:00:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,869 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:46,970 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:47,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:47,045 INFO L244 Elim1Store]: Index analysis took 211 ms [2021-05-03 20:00:47,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 19 [2021-05-03 20:00:47,058 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-05-03 20:00:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:47,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:47,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:00:47,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:00:47,204 INFO L244 Elim1Store]: Index analysis took 131 ms [2021-05-03 20:00:47,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 22 [2021-05-03 20:00:47,216 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-05-03 20:00:47,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 20:00:47,279 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 20:00:47,279 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 10 variables, input treesize:305, output treesize:5 [2021-05-03 20:00:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 95 refuted. 5 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 20:00:47,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 20:00:47,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32] total 64 [2021-05-03 20:00:47,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386140787] [2021-05-03 20:00:47,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-05-03 20:00:47,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 20:00:47,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-05-03 20:00:47,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=3821, Unknown=6, NotChecked=0, Total=4160 [2021-05-03 20:00:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 20:00:47,420 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 20:00:47,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 1.676923076923077) internal successors, (109), 64 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 20:00:47,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 20:00:50,957 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2021-05-03 20:00:52,006 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 21 [2021-05-03 20:00:55,187 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2021-05-03 20:00:56,141 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2021-05-03 20:00:56,964 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2021-05-03 20:00:58,441 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2021-05-03 20:00:59,622 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-05-03 20:01:00,471 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2021-05-03 20:01:01,323 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2021-05-03 20:01:02,543 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2021-05-03 20:01:03,683 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2021-05-03 20:01:04,465 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-05-03 20:01:05,413 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2021-05-03 20:01:06,491 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2021-05-03 20:01:07,716 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-05-03 20:01:09,223 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-05-03 20:01:14,416 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-05-03 20:01:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 20:01:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 20:01:15,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-03 20:01:15,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 20:01:15,939 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 20:01:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 20:01:15,940 INFO L82 PathProgramCache]: Analyzing trace with hash 904748543, now seen corresponding path program 6 times [2021-05-03 20:01:15,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 20:01:15,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308756517] [2021-05-03 20:01:15,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 20:01:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 20:01:16,263 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2021-05-03 20:01:16,441 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2021-05-03 20:01:16,602 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2021-05-03 20:01:16,795 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2021-05-03 20:01:17,023 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2021-05-03 20:01:18,224 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-05-03 20:01:18,833 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-03 20:01:19,079 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-05-03 20:01:19,803 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-03 20:01:20,093 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-05-03 20:01:20,373 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-05-03 20:01:20,684 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-03 20:01:20,995 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:01:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 20:01:26,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308756517] [2021-05-03 20:01:26,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004667831] [2021-05-03 20:01:26,375 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 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 [2021-05-03 20:01:26,419 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-03 20:01:26,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 20:01:26,422 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 72 conjunts are in the unsatisfiable core [2021-05-03 20:01:26,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 20:01:36,723 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-05-03 20:01:36,725 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 20:01:36,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 93 treesize of output 179 [2021-05-03 20:01:36,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 20:01:38,876 WARN L205 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2021-05-03 20:01:38,879 INFO L628 ElimStorePlain]: treesize reduction 209, result has 58.5 percent of original size [2021-05-03 20:01:39,262 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 20:01:39,262 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:104, output treesize:90 [2021-05-03 20:01:39,925 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2021-05-03 20:01:40,511 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 20:01:41,067 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:01:41,634 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:01:42,157 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-05-03 20:01:42,998 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-05-03 20:01:43,544 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 20:01:44,101 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-03 20:01:44,918 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-05-03 20:01:45,442 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 20:01:45,980 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-05-03 20:01:46,826 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-05-03 20:01:47,397 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 20:01:49,069 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2021-05-03 20:01:49,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:49,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:49,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:49,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:49,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:49,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:49,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-03 20:01:50,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-03 20:01:50,114 INFO L244 Elim1Store]: Index analysis took 180 ms [2021-05-03 20:01:50,450 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-05-03 20:01:50,453 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 20:01:50,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 66 treesize of output 80 [2021-05-03 20:01:50,752 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-05-03 20:01:50,934 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-05-03 20:01:50,937 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 20:01:50,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 20:01:50,986 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:85, output treesize:17 [2021-05-03 20:01:51,933 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2021-05-03 20:01:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 20:01:52,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 20:01:52,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 39] total 79 [2021-05-03 20:01:52,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396030124] [2021-05-03 20:01:52,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 80 states [2021-05-03 20:01:52,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 20:01:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-05-03 20:01:52,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=661, Invalid=5659, Unknown=0, NotChecked=0, Total=6320 [2021-05-03 20:01:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 20:01:52,073 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 20:01:52,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 80 states, 80 states have (on average 1.6125) internal successors, (129), 79 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 20:01:52,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-05-03 20:01:52,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 20:01:52,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-05-03 20:01:52,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 20:01:56,899 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-05-03 20:01:59,659 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2021-05-03 20:02:02,572 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-05-03 20:02:07,237 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2021-05-03 20:02:08,937 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-03 20:02:10,296 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2021-05-03 20:02:12,643 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 20:02:13,945 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-05-03 20:02:14,883 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-05-03 20:02:16,877 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2021-05-03 20:02:17,695 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-05-03 20:02:18,276 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2021-05-03 20:02:18,937 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2021-05-03 20:02:19,495 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2021-05-03 20:02:19,990 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2021-05-03 20:02:20,463 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2021-05-03 20:02:20,971 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2021-05-03 20:02:21,467 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 11 [2021-05-03 20:02:21,883 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-05-03 20:02:22,326 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 8 [2021-05-03 20:02:22,781 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2021-05-03 20:02:23,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:02:23,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:02:23,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 20:02:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-03 20:02:23,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-03 20:02:23,251 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 20:02:23,251 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 20:02:23,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 20:02:23,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1764623020, now seen corresponding path program 7 times [2021-05-03 20:02:23,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 20:02:23,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142375114] [2021-05-03 20:02:23,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 20:02:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 20:02:25,323 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-05-03 20:02:25,550 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-05-03 20:02:25,798 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-03 20:02:26,069 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-05-03 20:02:26,324 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-05-03 20:02:26,586 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-05-03 20:02:26,872 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-03 20:02:27,197 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-05-03 20:02:27,516 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-05-03 20:02:27,833 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-05-03 20:02:28,189 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-03 20:02:28,584 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2021-05-03 20:02:28,961 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-05-03 20:02:29,356 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-05-03 20:02:29,807 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-05-03 20:02:30,191 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:02:30,557 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-05-03 20:02:30,927 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-05-03 20:02:31,292 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-05-03 20:02:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 20:02:37,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142375114] [2021-05-03 20:02:37,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854353191] [2021-05-03 20:02:37,354 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 20:02:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 20:02:37,397 WARN L261 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 83 conjunts are in the unsatisfiable core [2021-05-03 20:02:37,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 20:02:46,142 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-05-03 20:02:54,564 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-05-03 20:02:55,964 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 99 [2021-05-03 20:02:55,966 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 20:02:55,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 237 [2021-05-03 20:02:56,068 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 20:02:59,612 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-05-03 20:02:59,616 INFO L628 ElimStorePlain]: treesize reduction 247, result has 63.8 percent of original size [2021-05-03 20:03:00,725 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-05-03 20:03:00,725 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:120, output treesize:128 [2021-05-03 20:03:01,877 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:03:02,545 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:03,269 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:03,933 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:03:04,807 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 20:03:05,404 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:06,008 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:03:06,860 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 20:03:07,552 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:08,189 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:03:09,027 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 20:03:09,735 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:10,448 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:03:11,354 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 20:03:12,089 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:12,806 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-05-03 20:03:13,656 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-05-03 20:03:14,319 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-05-03 20:03:14,419 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-05-03 20:03:14,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 25 [2021-05-03 20:03:14,432 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 20:03:14,472 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 20:03:14,478 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 20:03:14,478 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-05-03 20:03:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 20:03:14,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 20:03:14,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 44] total 88 [2021-05-03 20:03:14,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112376481] [2021-05-03 20:03:14,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-05-03 20:03:14,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 20:03:14,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-05-03 20:03:14,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=697, Invalid=7135, Unknown=0, NotChecked=0, Total=7832 [2021-05-03 20:03:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 20:03:14,671 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 20:03:14,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 89 states, 89 states have (on average 1.5617977528089888) internal successors, (139), 88 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 20:03:14,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:03:14,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:03:14,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-03 20:03:14,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 20:03:14,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 20:03:14,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-05-03 20:03:14,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 20:03:20,137 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-05-03 20:03:23,797 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34 [2021-05-03 20:03:25,508 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-05-03 20:03:27,399 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2021-05-03 20:03:28,918 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-05-03 20:03:31,867 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2021-05-03 20:03:34,161 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-05-03 20:03:55,852 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-05-03 20:03:56,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 20:03:56,056 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.search(SleepSetDelayReduction.java:183) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.(SleepSetDelayReduction.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:210) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:507) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 40 more [2021-05-03 20:03:56,062 INFO L168 Benchmark]: Toolchain (without parser) took 348937.20 ms. Allocated memory was 316.7 MB in the beginning and 459.3 MB in the end (delta: 142.6 MB). Free memory was 297.0 MB in the beginning and 296.7 MB in the end (delta: 299.5 kB). Peak memory consumption was 144.4 MB. Max. memory is 16.0 GB. [2021-05-03 20:03:56,062 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 316.7 MB. Free memory was 298.1 MB in the beginning and 298.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 20:03:56,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.64 ms. Allocated memory is still 316.7 MB. Free memory was 296.9 MB in the beginning and 295.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 20:03:56,062 INFO L168 Benchmark]: Boogie Preprocessor took 21.33 ms. Allocated memory is still 316.7 MB. Free memory was 295.4 MB in the beginning and 294.5 MB in the end (delta: 967.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 20:03:56,062 INFO L168 Benchmark]: RCFGBuilder took 415.37 ms. Allocated memory is still 316.7 MB. Free memory was 294.4 MB in the beginning and 281.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-05-03 20:03:56,062 INFO L168 Benchmark]: TraceAbstraction took 348465.07 ms. Allocated memory was 316.7 MB in the beginning and 459.3 MB in the end (delta: 142.6 MB). Free memory was 281.3 MB in the beginning and 296.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 127.6 MB. Max. memory is 16.0 GB. [2021-05-03 20:03:56,063 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 0.27 ms. Allocated memory is still 316.7 MB. Free memory was 298.1 MB in the beginning and 298.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.64 ms. Allocated memory is still 316.7 MB. Free memory was 296.9 MB in the beginning and 295.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 21.33 ms. Allocated memory is still 316.7 MB. Free memory was 295.4 MB in the beginning and 294.5 MB in the end (delta: 967.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 415.37 ms. Allocated memory is still 316.7 MB. Free memory was 294.4 MB in the beginning and 281.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 348465.07 ms. Allocated memory was 316.7 MB in the beginning and 459.3 MB in the end (delta: 142.6 MB). Free memory was 281.3 MB in the beginning and 296.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 127.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...