/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 05:53:24,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 05:53:25,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 05:53:25,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 05:53:25,099 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-NewStatesSleepPersistent-NoLbe.epf [2021-07-10 05:53:25,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 05:53:25,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 05:53:25,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 05:53:25,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 05:53:25,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 05:53:25,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 05:53:25,141 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 05:53:25,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 05:53:25,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 05:53:25,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 05:53:25,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 05:53:25,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 05:53:25,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 05:53:25,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 05:53:25,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 05:53:25,143 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 05:53:25,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 05:53:25,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 05:53:25,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 05:53:25,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 05:53:25,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 05:53:25,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 05:53:25,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 05:53:25,156 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 05:53:25,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 05:53:25,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 05:53:25,157 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-10 05:53:25,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 05:53:25,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 05:53:25,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 05:53:25,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 05:53:25,454 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 05:53:25,456 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 05:53:25,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-trans.wvr.bpl [2021-07-10 05:53:25,457 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/poker-hand-trans.wvr.bpl' [2021-07-10 05:53:25,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 05:53:25,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 05:53:25,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 05:53:25,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 05:53:25,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 05:53:25,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 05:53:25,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 05:53:25,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 05:53:25,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 05:53:25,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/1) ... [2021-07-10 05:53:25,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 05:53:25,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 05:53:25,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 05:53:25,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 05:53:25,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (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 [2021-07-10 05:53:25,664 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 05:53:25,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 05:53:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 05:53:25,665 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 05:53:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 05:53:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 05:53:25,665 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 05:53:25,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 05:53:25,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 05:53:25,666 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 05:53:25,666 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 05:53:25,666 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 05:53:25,667 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 05:53:26,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 05:53:26,670 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-10 05:53:26,672 INFO L202 PluginConnector]: Adding new model poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 05:53:26 BoogieIcfgContainer [2021-07-10 05:53:26,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 05:53:26,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 05:53:26,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 05:53:26,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 05:53:26,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 05:53:25" (1/2) ... [2021-07-10 05:53:26,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d71bd74 and model type poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 05:53:26, skipping insertion in model container [2021-07-10 05:53:26,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "poker-hand-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 05:53:26" (2/2) ... [2021-07-10 05:53:26,687 INFO L111 eAbstractionObserver]: Analyzing ICFG poker-hand-trans.wvr.bpl [2021-07-10 05:53:26,692 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 05:53:26,692 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 05:53:26,693 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 05:53:26,693 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 05:53:26,738 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 05:53:26,763 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-10 05:53:26,822 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 05:53:26,823 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 05:53:26,823 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 05:53:26,823 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 05:53:26,823 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 05:53:26,823 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 05:53:26,823 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 05:53:26,823 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 05:53:26,953 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash -491577869, now seen corresponding path program 1 times [2021-07-10 05:53:26,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:26,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815433820] [2021-07-10 05:53:26,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 05:53:27,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:27,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815433820] [2021-07-10 05:53:27,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815433820] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 05:53:27,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 05:53:27,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 05:53:27,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104106516] [2021-07-10 05:53:27,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 05:53:27,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:27,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 05:53:27,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 05:53:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:27,110 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:27,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 05:53:27,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:27,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 05:53:27,134 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:27,136 INFO L82 PathProgramCache]: Analyzing trace with hash -411976176, now seen corresponding path program 1 times [2021-07-10 05:53:27,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:27,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325758755] [2021-07-10 05:53:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:27,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:27,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325758755] [2021-07-10 05:53:27,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325758755] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 05:53:27,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 05:53:27,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-10 05:53:27,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712145653] [2021-07-10 05:53:27,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 05:53:27,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:27,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 05:53:27,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-10 05:53:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:27,212 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:27,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 05:53:27,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:27,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-10 05:53:27,225 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash -367472379, now seen corresponding path program 1 times [2021-07-10 05:53:27,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:27,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498832063] [2021-07-10 05:53:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:27,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:27,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498832063] [2021-07-10 05:53:27,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498832063] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:27,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678441806] [2021-07-10 05:53:27,294 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 [2021-07-10 05:53:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:27,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-10 05:53:27,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-10 05:53:27,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678441806] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 05:53:27,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-10 05:53:27,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-07-10 05:53:27,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766642573] [2021-07-10 05:53:27,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-10 05:53:27,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:27,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-10 05:53:27,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-10 05:53:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:27,414 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:27,414 INFO L483 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) [2021-07-10 05:53:27,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:27,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:27,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:27,696 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:27,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1461631440, now seen corresponding path program 1 times [2021-07-10 05:53:27,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:27,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025198071] [2021-07-10 05:53:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 05:53:28,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:28,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025198071] [2021-07-10 05:53:28,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025198071] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:28,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980366617] [2021-07-10 05:53:28,086 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 [2021-07-10 05:53:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:28,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-10 05:53:28,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:28,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980366617] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:28,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:28,586 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2021-07-10 05:53:28,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359931976] [2021-07-10 05:53:28,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 05:53:28,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:28,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 05:53:28,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-10 05:53:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:28,590 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:28,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 17 states have internal predecessors, (36), 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) [2021-07-10 05:53:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:28,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:29,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:29,213 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:29,213 INFO L82 PathProgramCache]: Analyzing trace with hash 2053720211, now seen corresponding path program 2 times [2021-07-10 05:53:29,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:29,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408076871] [2021-07-10 05:53:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 05:53:29,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:29,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408076871] [2021-07-10 05:53:29,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408076871] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:29,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218982123] [2021-07-10 05:53:29,334 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 [2021-07-10 05:53:29,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 05:53:29,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:29,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-10 05:53:29,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:29,572 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:29,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218982123] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:29,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:29,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-07-10 05:53:29,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403228866] [2021-07-10 05:53:29,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-10 05:53:29,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:29,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-10 05:53:29,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-07-10 05:53:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:29,574 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:29,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 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) [2021-07-10 05:53:29,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:29,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:29,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:29,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:29,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:30,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-10 05:53:30,041 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:30,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:30,041 INFO L82 PathProgramCache]: Analyzing trace with hash -790809598, now seen corresponding path program 3 times [2021-07-10 05:53:30,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:30,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58754644] [2021-07-10 05:53:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 05:53:30,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:30,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58754644] [2021-07-10 05:53:30,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58754644] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:30,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328514864] [2021-07-10 05:53:30,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:30,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-07-10 05:53:30,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:30,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-10 05:53:30,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 05:53:30,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328514864] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:30,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:30,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 16 [2021-07-10 05:53:30,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047830735] [2021-07-10 05:53:30,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 05:53:30,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:30,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 05:53:30,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-07-10 05:53:30,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:30,379 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:30,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2021-07-10 05:53:30,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:30,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:30,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:30,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:30,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:30,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:30,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:30,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-07-10 05:53:30,785 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:30,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:30,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1236344493, now seen corresponding path program 4 times [2021-07-10 05:53:30,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:30,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251847827] [2021-07-10 05:53:30,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 05:53:31,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:31,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251847827] [2021-07-10 05:53:31,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251847827] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:31,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600596838] [2021-07-10 05:53:31,026 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:31,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 05:53:31,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:31,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-10 05:53:31,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:31,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:31,263 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,439 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-07-10 05:53:31,440 INFO L628 ElimStorePlain]: treesize reduction 34, result has 86.7 percent of original size [2021-07-10 05:53:31,444 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 [2021-07-10 05:53:31,446 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,586 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2021-07-10 05:53:31,587 INFO L628 ElimStorePlain]: treesize reduction 29, result has 86.1 percent of original size [2021-07-10 05:53:31,587 INFO L518 ElimStorePlain]: Eliminatee char_at_5 vanished before elimination [2021-07-10 05:53:31,593 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 [2021-07-10 05:53:31,595 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,598 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 [2021-07-10 05:53:31,599 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,712 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2021-07-10 05:53:31,712 INFO L628 ElimStorePlain]: treesize reduction 12, result has 92.3 percent of original size [2021-07-10 05:53:31,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:31,721 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:31,728 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,738 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:31,739 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:31,742 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:31,785 INFO L628 ElimStorePlain]: treesize reduction 40, result has 55.6 percent of original size [2021-07-10 05:53:31,793 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 5 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:53:31,794 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:260, output treesize:42 [2021-07-10 05:53:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 05:53:33,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600596838] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:33,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:33,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-10 05:53:33,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697542376] [2021-07-10 05:53:33,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-10 05:53:33,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:33,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-10 05:53:33,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-07-10 05:53:33,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:33,427 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:33,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 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) [2021-07-10 05:53:33,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:33,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:33,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:33,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:33,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:33,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:33,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:34,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-07-10 05:53:34,365 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:34,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:34,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1750452304, now seen corresponding path program 5 times [2021-07-10 05:53:34,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:34,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644219049] [2021-07-10 05:53:34,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:34,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:34,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644219049] [2021-07-10 05:53:34,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644219049] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:34,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539180406] [2021-07-10 05:53:34,531 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:34,584 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-07-10 05:53:34,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:34,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 05:53:34,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:34,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:34,629 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:34,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:34,632 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:34,683 INFO L628 ElimStorePlain]: treesize reduction 34, result has 43.3 percent of original size [2021-07-10 05:53:34,684 INFO L518 ElimStorePlain]: Eliminatee char_at_5 vanished before elimination [2021-07-10 05:53:34,686 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:53:34,687 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:26 [2021-07-10 05:53:34,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 05:53:34,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539180406] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:34,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:34,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2021-07-10 05:53:34,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005949008] [2021-07-10 05:53:34,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-10 05:53:34,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:34,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-10 05:53:34,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-07-10 05:53:34,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:34,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:34,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 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) [2021-07-10 05:53:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:34,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:34,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:35,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:35,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:35,365 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1538926725, now seen corresponding path program 6 times [2021-07-10 05:53:35,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:35,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569665239] [2021-07-10 05:53:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:35,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:35,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569665239] [2021-07-10 05:53:35,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569665239] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:35,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546492677] [2021-07-10 05:53:35,628 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:35,677 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-07-10 05:53:35,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:35,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-10 05:53:35,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:36,336 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,337 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:53:36,339 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,347 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-10 05:53:36,349 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,356 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:53:36,364 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:36,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:53:36,373 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,379 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:36,380 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,689 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2021-07-10 05:53:36,690 INFO L628 ElimStorePlain]: treesize reduction 321, result has 51.0 percent of original size [2021-07-10 05:53:36,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,695 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,700 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,710 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,823 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-07-10 05:53:36,824 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:36,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,832 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,839 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,844 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,976 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-07-10 05:53:36,976 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:36,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,980 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,985 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:36,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:36,989 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:37,113 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-07-10 05:53:37,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:37,127 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 12 dim-0 vars, and 12 xjuncts. [2021-07-10 05:53:37,128 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:777, output treesize:289 [2021-07-10 05:53:37,320 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 64 [2021-07-10 05:53:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 05:53:37,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546492677] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:37,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:37,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 23 [2021-07-10 05:53:37,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058203327] [2021-07-10 05:53:37,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-10 05:53:37,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:37,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-10 05:53:37,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-07-10 05:53:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:37,595 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:37,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.9130434782608696) internal successors, (44), 23 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) [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:37,596 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:38,817 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-07-10 05:53:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:39,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:39,110 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:39,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:39,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1565307891, now seen corresponding path program 7 times [2021-07-10 05:53:39,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:39,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399086874] [2021-07-10 05:53:39,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 05:53:39,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:39,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399086874] [2021-07-10 05:53:39,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399086874] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:39,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256614835] [2021-07-10 05:53:39,264 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:39,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-10 05:53:39,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:39,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:39,359 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:39,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:39,362 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:39,387 INFO L628 ElimStorePlain]: treesize reduction 34, result has 43.3 percent of original size [2021-07-10 05:53:39,387 INFO L518 ElimStorePlain]: Eliminatee char_at_5 vanished before elimination [2021-07-10 05:53:39,389 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:53:39,389 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:26 [2021-07-10 05:53:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:39,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256614835] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:39,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:39,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 19 [2021-07-10 05:53:39,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621747034] [2021-07-10 05:53:39,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-10 05:53:39,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:39,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-10 05:53:39,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-07-10 05:53:39,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:39,563 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:39,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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) [2021-07-10 05:53:39,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:39,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:39,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:39,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:39,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:39,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:39,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:39,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:39,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:39,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:40,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:40,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:40,263 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:40,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1248277666, now seen corresponding path program 8 times [2021-07-10 05:53:40,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:40,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079752003] [2021-07-10 05:53:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-10 05:53:40,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:40,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079752003] [2021-07-10 05:53:40,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079752003] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:40,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674233415] [2021-07-10 05:53:40,504 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 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 [2021-07-10 05:53:40,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 05:53:40,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:40,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-10 05:53:40,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-10 05:53:40,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674233415] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:40,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:40,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 26 [2021-07-10 05:53:40,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469004064] [2021-07-10 05:53:40,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-10 05:53:40,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:40,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-10 05:53:40,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-07-10 05:53:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:40,901 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:40,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 1.8461538461538463) internal successors, (48), 26 states have internal predecessors, (48), 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) [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:40,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:41,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:41,760 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:41,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:41,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1967921488, now seen corresponding path program 9 times [2021-07-10 05:53:41,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:41,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4409225] [2021-07-10 05:53:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:41,962 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 05:53:41,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:41,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4409225] [2021-07-10 05:53:41,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4409225] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:41,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596337807] [2021-07-10 05:53:41,962 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 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 [2021-07-10 05:53:42,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-10 05:53:42,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:42,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-10 05:53:42,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:42,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:42,066 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:42,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:42,069 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:42,100 INFO L628 ElimStorePlain]: treesize reduction 34, result has 43.3 percent of original size [2021-07-10 05:53:42,101 INFO L518 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2021-07-10 05:53:42,103 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:53:42,103 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:26 [2021-07-10 05:53:42,358 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:42,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596337807] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:42,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:42,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 23 [2021-07-10 05:53:42,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782771182] [2021-07-10 05:53:42,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-07-10 05:53:42,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:42,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-07-10 05:53:42,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-07-10 05:53:42,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:42,361 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:42,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 23 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:42,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:43,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:43,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:43,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable333 [2021-07-10 05:53:43,226 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:43,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:43,227 INFO L82 PathProgramCache]: Analyzing trace with hash 844397285, now seen corresponding path program 10 times [2021-07-10 05:53:43,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:43,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265245579] [2021-07-10 05:53:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 05:53:43,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:43,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265245579] [2021-07-10 05:53:43,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265245579] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:43,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124393657] [2021-07-10 05:53:43,573 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:43,635 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 05:53:43,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:43,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-10 05:53:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:43,763 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,764 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,769 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,770 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:43,776 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:43,781 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,784 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,785 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,788 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,789 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,792 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,793 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,796 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 [2021-07-10 05:53:43,798 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,800 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,801 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,805 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,806 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,809 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,809 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,812 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,813 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,816 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,816 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,819 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,820 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,823 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 [2021-07-10 05:53:43,824 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,827 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,827 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:43,831 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,833 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:43,834 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,886 INFO L628 ElimStorePlain]: treesize reduction 32, result has 71.2 percent of original size [2021-07-10 05:53:43,889 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 [2021-07-10 05:53:43,890 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:43,922 INFO L628 ElimStorePlain]: treesize reduction 17, result has 74.6 percent of original size [2021-07-10 05:53:43,925 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:53:43,925 INFO L247 ElimStorePlain]: Needed 20 recursive calls to eliminate 3 variables, input treesize:516, output treesize:42 [2021-07-10 05:53:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-10 05:53:45,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124393657] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:45,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:45,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 27 [2021-07-10 05:53:45,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563856332] [2021-07-10 05:53:45,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-10 05:53:45,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:45,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-10 05:53:45,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2021-07-10 05:53:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:45,961 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:45,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 27 states have internal predecessors, (48), 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) [2021-07-10 05:53:45,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:45,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:45,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:45,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:45,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:45,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:46,723 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:46,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:46,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable345 [2021-07-10 05:53:46,995 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:46,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1658201154, now seen corresponding path program 11 times [2021-07-10 05:53:46,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:46,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141327086] [2021-07-10 05:53:46,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:47,233 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 05:53:47,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:47,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141327086] [2021-07-10 05:53:47,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141327086] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:47,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010674352] [2021-07-10 05:53:47,234 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:47,282 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-10 05:53:47,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:47,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-10 05:53:47,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-10 05:53:47,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010674352] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:47,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:47,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 19 [2021-07-10 05:53:47,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999925209] [2021-07-10 05:53:47,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-10 05:53:47,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:47,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-10 05:53:47,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-10 05:53:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:47,504 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:47,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 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) [2021-07-10 05:53:47,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:47,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:47,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:47,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:47,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:47,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:47,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:48,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable781 [2021-07-10 05:53:48,282 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:48,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:48,283 INFO L82 PathProgramCache]: Analyzing trace with hash -166998477, now seen corresponding path program 12 times [2021-07-10 05:53:48,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:48,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611710898] [2021-07-10 05:53:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-10 05:53:48,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:48,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611710898] [2021-07-10 05:53:48,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611710898] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:48,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216825956] [2021-07-10 05:53:48,590 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:48,647 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-10 05:53:48,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:48,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-10 05:53:48,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:48,876 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 17 treesize of output 13 [2021-07-10 05:53:48,877 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:48,879 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 17 treesize of output 13 [2021-07-10 05:53:48,880 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:48,897 INFO L628 ElimStorePlain]: treesize reduction 37, result has 35.1 percent of original size [2021-07-10 05:53:48,897 INFO L518 ElimStorePlain]: Eliminatee index_of_4 vanished before elimination [2021-07-10 05:53:48,897 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-10 05:53:48,897 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:83, output treesize:20 [2021-07-10 05:53:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-07-10 05:53:49,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216825956] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:49,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:49,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14] total 32 [2021-07-10 05:53:49,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504457878] [2021-07-10 05:53:49,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-07-10 05:53:49,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:49,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-07-10 05:53:49,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2021-07-10 05:53:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:49,133 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:49,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 1.71875) internal successors, (55), 32 states have internal predecessors, (55), 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) [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:49,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:50,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:53:50,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable790,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:50,532 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:50,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:50,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1610554053, now seen corresponding path program 13 times [2021-07-10 05:53:50,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:50,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430949070] [2021-07-10 05:53:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:50,746 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-07-10 05:53:50,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:50,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430949070] [2021-07-10 05:53:50,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430949070] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:50,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087812303] [2021-07-10 05:53:50,746 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:50,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-10 05:53:50,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-10 05:53:51,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087812303] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:51,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:51,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 36 [2021-07-10 05:53:51,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136889059] [2021-07-10 05:53:51,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-07-10 05:53:51,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:51,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-07-10 05:53:51,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2021-07-10 05:53:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:51,383 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:51,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 36 states have internal predecessors, (60), 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) [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:51,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:51,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:51,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:51,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:51,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:51,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:53:51,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:52,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:53:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 05:53:52,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable801,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:52,399 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:52,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:52,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1939432176, now seen corresponding path program 14 times [2021-07-10 05:53:52,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:52,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385866905] [2021-07-10 05:53:52,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 54 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-10 05:53:52,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:52,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385866905] [2021-07-10 05:53:52,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385866905] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:52,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115510551] [2021-07-10 05:53:52,636 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:52,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 05:53:52,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:52,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 33 conjunts are in the unsatisfiable core [2021-07-10 05:53:52,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:52,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:52,754 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:52,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:52,756 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:52,781 INFO L628 ElimStorePlain]: treesize reduction 34, result has 43.3 percent of original size [2021-07-10 05:53:52,781 INFO L518 ElimStorePlain]: Eliminatee char_at_5 vanished before elimination [2021-07-10 05:53:52,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:53:52,784 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:26 [2021-07-10 05:53:53,049 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-07-10 05:53:53,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115510551] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:53,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:53:53,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 27 [2021-07-10 05:53:53,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369805332] [2021-07-10 05:53:53,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-10 05:53:53,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:53:53,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-10 05:53:53,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2021-07-10 05:53:53,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:53,052 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:53:53,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 27 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) [2021-07-10 05:53:53,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:53,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:53,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 05:53:53,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:53:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 05:53:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 05:53:53,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable803,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:53,902 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:53:53,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:53:53,902 INFO L82 PathProgramCache]: Analyzing trace with hash -38771387, now seen corresponding path program 15 times [2021-07-10 05:53:53,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:53:53,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070010991] [2021-07-10 05:53:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:53:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:53:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-10 05:53:54,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:53:54,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070010991] [2021-07-10 05:53:54,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070010991] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:53:54,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460926772] [2021-07-10 05:53:54,212 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:53:54,284 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-10 05:53:54,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:53:54,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-10 05:53:54,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:53:54,583 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-07-10 05:53:54,642 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 17 treesize of output 13 [2021-07-10 05:53:54,644 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,649 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 17 treesize of output 13 [2021-07-10 05:53:54,650 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,655 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 17 treesize of output 13 [2021-07-10 05:53:54,656 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,661 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 17 treesize of output 13 [2021-07-10 05:53:54,662 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:54,722 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 7 treesize of output 5 [2021-07-10 05:53:54,723 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,775 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:54,782 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 7 treesize of output 5 [2021-07-10 05:53:54,783 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:54,848 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 7 treesize of output 5 [2021-07-10 05:53:54,850 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:54,913 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 7 treesize of output 5 [2021-07-10 05:53:54,915 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:54,965 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:54,969 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 7 treesize of output 5 [2021-07-10 05:53:54,970 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:55,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:53:55,020 INFO L550 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 6 dim-1 vars, End of recursive call: 9 dim-0 vars, and 9 xjuncts. [2021-07-10 05:53:55,020 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 15 variables, input treesize:260, output treesize:173 [2021-07-10 05:53:57,494 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:53:57,494 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 16 treesize of output 10 [2021-07-10 05:53:57,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,520 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:53:57,520 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 11 treesize of output 11 [2021-07-10 05:53:57,522 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:57,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:57,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:53:57,538 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,559 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:53:57,560 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 11 treesize of output 7 [2021-07-10 05:53:57,561 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,587 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:53:57,587 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 11 treesize of output 7 [2021-07-10 05:53:57,589 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,617 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:53:57,617 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 18 treesize of output 16 [2021-07-10 05:53:57,619 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,632 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,633 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,646 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,646 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,661 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,673 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,674 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,693 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,694 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,708 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,709 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,720 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:57,729 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:57,751 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:53:57,752 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 18 treesize of output 16 [2021-07-10 05:53:57,753 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,748 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 215 DAG size of output: 168 [2021-07-10 05:53:59,748 INFO L628 ElimStorePlain]: treesize reduction 1989, result has 50.1 percent of original size [2021-07-10 05:53:59,761 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:53:59,761 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 11 treesize of output 7 [2021-07-10 05:53:59,762 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:53:59,770 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,777 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:59,777 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,792 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:53:59,792 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 11 treesize of output 11 [2021-07-10 05:53:59,793 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,805 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:53:59,805 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 11 treesize of output 7 [2021-07-10 05:53:59,806 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:59,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:53:59,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:53:59,816 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,822 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:53:59,823 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-10 05:53:59,836 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:53:59,836 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 18 treesize of output 16 [2021-07-10 05:53:59,837 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,228 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 160 DAG size of output: 158 [2021-07-10 05:54:01,229 INFO L628 ElimStorePlain]: treesize reduction 51, result has 97.3 percent of original size [2021-07-10 05:54:01,243 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:54:01,243 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 25 treesize of output 25 [2021-07-10 05:54:01,247 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,260 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:01,261 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 18 treesize of output 16 [2021-07-10 05:54:01,262 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:01,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:01,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:01,270 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,276 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 [2021-07-10 05:54:01,277 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,290 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:01,290 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 18 treesize of output 16 [2021-07-10 05:54:01,293 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:01,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:01,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:01,309 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,325 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:01,325 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 18 treesize of output 16 [2021-07-10 05:54:01,327 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,334 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:01,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:01,335 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,954 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-07-10 05:54:01,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:54:01,969 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:01,969 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 18 treesize of output 16 [2021-07-10 05:54:01,971 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:01,986 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:01,987 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 18 treesize of output 16 [2021-07-10 05:54:01,988 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,001 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:54:02,001 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 25 treesize of output 25 [2021-07-10 05:54:02,008 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,022 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:02,022 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 18 treesize of output 16 [2021-07-10 05:54:02,023 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,031 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,032 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:02,033 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,040 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 [2021-07-10 05:54:02,041 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:02,050 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:02,057 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,593 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-07-10 05:54:02,593 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:54:02,605 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:02,605 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 18 treesize of output 16 [2021-07-10 05:54:02,607 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,618 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:54:02,618 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 25 treesize of output 25 [2021-07-10 05:54:02,622 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,634 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:02,634 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 18 treesize of output 16 [2021-07-10 05:54:02,636 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,641 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 [2021-07-10 05:54:02,642 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:02,649 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:02,657 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,668 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:02,668 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 18 treesize of output 16 [2021-07-10 05:54:02,670 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:02,682 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:02,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2021-07-10 05:54:02,683 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,139 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-07-10 05:54:03,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 05:54:03,151 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:03,151 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 11 treesize of output 11 [2021-07-10 05:54:03,152 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,163 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:03,164 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 11 treesize of output 11 [2021-07-10 05:54:03,165 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:03,171 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:03,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:54:03,173 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,187 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:03,187 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 11 treesize of output 11 [2021-07-10 05:54:03,188 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,193 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:54:03,193 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:03,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:03,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:54:03,205 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:03,212 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:03,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:54:03,213 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:03,226 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:03,227 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 18 treesize of output 16 [2021-07-10 05:54:03,228 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,039 WARN L205 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2021-07-10 05:54:04,039 INFO L628 ElimStorePlain]: treesize reduction 78, result has 93.1 percent of original size [2021-07-10 05:54:04,048 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:54:04,049 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 11 treesize of output 7 [2021-07-10 05:54:04,050 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,074 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:04,075 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 11 treesize of output 11 [2021-07-10 05:54:04,076 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,088 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-10 05:54:04,088 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 11 treesize of output 7 [2021-07-10 05:54:04,089 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:54:04,096 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,110 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-10 05:54:04,110 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 18 treesize of output 16 [2021-07-10 05:54:04,111 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,117 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:54:04,118 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:04,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-10 05:54:04,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2021-07-10 05:54:04,126 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,134 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 05:54:04,134 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:04,798 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2021-07-10 05:54:04,799 INFO L628 ElimStorePlain]: treesize reduction 23, result has 97.5 percent of original size [2021-07-10 05:54:04,831 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 7 dim-1 vars, End of recursive call: 32 dim-0 vars, and 37 xjuncts. [2021-07-10 05:54:04,831 INFO L247 ElimStorePlain]: Needed 63 recursive calls to eliminate 14 variables, input treesize:4336, output treesize:885 [2021-07-10 05:54:12,765 WARN L205 SmtUtils]: Spent 7.74 s on a formula simplification. DAG size of input: 251 DAG size of output: 97 [2021-07-10 05:54:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-07-10 05:54:14,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460926772] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:54:14,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 05:54:14,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 41 [2021-07-10 05:54:14,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718895118] [2021-07-10 05:54:14,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-10 05:54:14,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 05:54:14,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-10 05:54:14,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1544, Unknown=0, NotChecked=0, Total=1640 [2021-07-10 05:54:14,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:54:14,132 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 05:54:14,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 41 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:54:14,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-07-10 05:54:14,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 05:54:15,053 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-07-10 05:54:15,662 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:16,259 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:16,874 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-07-10 05:54:17,497 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:17,947 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-07-10 05:54:18,202 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:18,746 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 91 [2021-07-10 05:54:18,962 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-07-10 05:54:19,250 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2021-07-10 05:54:19,542 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-07-10 05:54:19,915 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-07-10 05:54:20,262 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-07-10 05:54:20,563 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-07-10 05:54:20,867 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-07-10 05:54:21,169 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:21,461 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-07-10 05:54:21,781 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:22,088 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2021-07-10 05:54:22,390 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-07-10 05:54:22,685 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2021-07-10 05:54:22,986 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-07-10 05:54:23,287 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-07-10 05:54:23,820 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 145 [2021-07-10 05:54:24,113 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 93 [2021-07-10 05:54:24,862 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 145 [2021-07-10 05:54:25,381 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 154 [2021-07-10 05:54:25,719 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 88 [2021-07-10 05:54:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-10 05:54:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-10 05:54:25,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable813 [2021-07-10 05:54:25,946 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 05:54:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 05:54:25,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1671746227, now seen corresponding path program 16 times [2021-07-10 05:54:25,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 05:54:25,947 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871348826] [2021-07-10 05:54:25,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 05:54:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 05:54:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 1 proven. 70 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-07-10 05:54:26,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 05:54:26,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871348826] [2021-07-10 05:54:26,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871348826] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 05:54:26,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67691206] [2021-07-10 05:54:26,242 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 05:54:26,314 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 05:54:26,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 05:54:26,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 37 conjunts are in the unsatisfiable core [2021-07-10 05:54:26,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 05:54:26,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:54:26,359 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:26,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-07-10 05:54:26,362 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 05:54:26,388 INFO L628 ElimStorePlain]: treesize reduction 34, result has 43.3 percent of original size [2021-07-10 05:54:26,389 INFO L518 ElimStorePlain]: Eliminatee char_at_5 vanished before elimination [2021-07-10 05:54:26,391 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2021-07-10 05:54:26,391 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:26 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown