/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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 19:30:56,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 19:30:56,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 19:30:56,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 19:30:56,715 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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-07-14 19:30:56,749 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 19:30:56,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 19:30:56,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 19:30:56,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 19:30:56,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 19:30:56,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 19:30:56,752 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 19:30:56,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 19:30:56,752 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 19:30:56,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 19:30:56,753 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 19:30:56,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 19:30:56,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 19:30:56,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 19:30:56,755 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 19:30:56,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 19:30:56,755 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 19:30:56,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 19:30:56,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 19:30:56,755 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 19:30:56,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 19:30:57,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 19:30:57,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 19:30:57,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 19:30:57,039 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 19:30:57,041 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 19:30:57,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2021-07-14 19:30:57,042 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2021-07-14 19:30:57,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 19:30:57,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 19:30:57,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 19:30:57,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 19:30:57,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 19:30:57,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 19:30:57,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 19:30:57,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 19:30:57,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 19:30:57,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/1) ... [2021-07-14 19:30:57,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 19:30:57,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 19:30:57,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 19:30:57,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 19:30:57,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (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 [2021-07-14 19:30:57,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 19:30:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 19:30:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 19:30:57,149 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 19:30:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 19:30:57,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 19:30:57,150 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 19:30:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 19:30:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 19:30:57,150 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 19:30:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 19:30:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 19:30:57,151 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 19:30:57,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 19:30:57,316 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 19:30:57,317 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:30:57 BoogieIcfgContainer [2021-07-14 19:30:57,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 19:30:57,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 19:30:57,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 19:30:57,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 19:30:57,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 07:30:57" (1/2) ... [2021-07-14 19:30:57,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2602dce5 and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:30:57, skipping insertion in model container [2021-07-14 19:30:57,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:30:57" (2/2) ... [2021-07-14 19:30:57,323 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2021-07-14 19:30:57,326 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 19:30:57,326 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 19:30:57,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 19:30:57,327 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 19:30:57,364 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 19:30:57,396 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 [2021-07-14 19:30:57,434 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 19:30:57,434 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 19:30:57,434 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 19:30:57,434 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 19:30:57,434 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 19:30:57,434 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 19:30:57,434 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 19:30:57,435 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 19:30:57,537 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:30:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:30:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash -548399394, now seen corresponding path program 1 times [2021-07-14 19:30:57,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:30:57,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888306353] [2021-07-14 19:30:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:30:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:30:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 19:30:57,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:30:57,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888306353] [2021-07-14 19:30:57,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888306353] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:57,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362174593] [2021-07-14 19:30:57,776 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 [2021-07-14 19:30:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:30:57,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 19:30:57,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:30:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-14 19:30:57,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362174593] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:57,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:30:57,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-14 19:30:57,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202047209] [2021-07-14 19:30:57,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 19:30:57,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:30:57,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 19:30:57,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-14 19:30:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:30:57,925 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:30:57,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2021-07-14 19:30:57,927 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:30:57,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:30:58,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 19:30:58,209 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:30:58,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:30:58,210 INFO L82 PathProgramCache]: Analyzing trace with hash 656275072, now seen corresponding path program 2 times [2021-07-14 19:30:58,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:30:58,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727053621] [2021-07-14 19:30:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:30:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:30:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 19:30:58,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:30:58,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727053621] [2021-07-14 19:30:58,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727053621] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:58,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741565645] [2021-07-14 19:30:58,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:30:58,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 19:30:58,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:30:58,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 19:30:58,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:30:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-14 19:30:58,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741565645] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:58,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:30:58,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-14 19:30:58,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143781522] [2021-07-14 19:30:58,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 19:30:58,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:30:58,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 19:30:58,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-14 19:30:58,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:30:58,464 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:30:58,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 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) [2021-07-14 19:30:58,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:30:58,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:30:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:30:58,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:30:58,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:30:58,761 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:30:58,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:30:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1292733022, now seen corresponding path program 3 times [2021-07-14 19:30:58,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:30:58,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092356683] [2021-07-14 19:30:58,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:30:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:30:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:30:58,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:30:58,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092356683] [2021-07-14 19:30:58,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092356683] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:58,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867491037] [2021-07-14 19:30:58,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:30:58,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 19:30:58,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:30:58,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 19:30:58,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:30:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:30:59,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867491037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:59,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:30:59,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-07-14 19:30:59,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907144676] [2021-07-14 19:30:59,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 19:30:59,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:30:59,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 19:30:59,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-07-14 19:30:59,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:30:59,050 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:30:59,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 19:30:59,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:30:59,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:30:59,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:30:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:30:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:30:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:30:59,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:30:59,373 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:30:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:30:59,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1683770300, now seen corresponding path program 4 times [2021-07-14 19:30:59,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:30:59,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106204402] [2021-07-14 19:30:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:30:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:30:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:30:59,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:30:59,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106204402] [2021-07-14 19:30:59,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106204402] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:30:59,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355310071] [2021-07-14 19:30:59,893 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:30:59,936 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 19:30:59,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:30:59,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-14 19:30:59,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:00,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:00,638 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:31:00,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 41 [2021-07-14 19:31:00,654 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 19:31:00,659 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:31:00,661 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 19:31:00,661 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:41, output treesize:5 [2021-07-14 19:31:00,682 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:00,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355310071] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:00,682 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:00,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2021-07-14 19:31:00,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689751637] [2021-07-14 19:31:00,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 19:31:00,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:00,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 19:31:00,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2021-07-14 19:31:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:00,684 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:00,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 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) [2021-07-14 19:31:00,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:00,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:00,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:00,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:02,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:02,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:02,401 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:02,402 INFO L82 PathProgramCache]: Analyzing trace with hash 486527590, now seen corresponding path program 5 times [2021-07-14 19:31:02,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:02,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525232555] [2021-07-14 19:31:02,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:02,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:02,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525232555] [2021-07-14 19:31:02,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525232555] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:02,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103714789] [2021-07-14 19:31:02,499 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:02,531 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-14 19:31:02,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:02,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 19:31:02,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:02,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103714789] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:02,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:02,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-07-14 19:31:02,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409331527] [2021-07-14 19:31:02,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-14 19:31:02,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:02,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-14 19:31:02,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2021-07-14 19:31:02,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:02,718 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:02,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 2.5416666666666665) internal successors, (61), 24 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) [2021-07-14 19:31:02,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:02,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:02,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:02,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:02,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:03,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:03,460 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:03,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:03,461 INFO L82 PathProgramCache]: Analyzing trace with hash 267602802, now seen corresponding path program 6 times [2021-07-14 19:31:03,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:03,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350750728] [2021-07-14 19:31:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:03,565 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:03,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:03,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350750728] [2021-07-14 19:31:03,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350750728] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:03,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246701755] [2021-07-14 19:31:03,565 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:03,601 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 19:31:03,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:03,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 19:31:03,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:03,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246701755] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:03,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:03,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 27 [2021-07-14 19:31:03,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790785188] [2021-07-14 19:31:03,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-07-14 19:31:03,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:03,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-07-14 19:31:03,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=567, Unknown=0, NotChecked=0, Total=702 [2021-07-14 19:31:03,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:03,840 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:03,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.740740740740741) internal successors, (74), 27 states have internal predecessors, (74), 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) [2021-07-14 19:31:03,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:03,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:03,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:03,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:03,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:03,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:04,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:04,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:04,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:04,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:04,221 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:04,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:04,221 INFO L82 PathProgramCache]: Analyzing trace with hash 728246164, now seen corresponding path program 7 times [2021-07-14 19:31:04,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:04,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150285261] [2021-07-14 19:31:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:04,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:04,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150285261] [2021-07-14 19:31:04,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150285261] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:04,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000302700] [2021-07-14 19:31:04,353 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:04,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-07-14 19:31:04,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 14 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:04,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000302700] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:04,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:04,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-07-14 19:31:04,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768261844] [2021-07-14 19:31:04,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-14 19:31:04,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:04,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-14 19:31:04,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-07-14 19:31:04,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:04,628 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:04,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 29 states have internal predecessors, (72), 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) [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:04,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:05,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-07-14 19:31:05,003 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:05,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1024885558, now seen corresponding path program 8 times [2021-07-14 19:31:05,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:05,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016609889] [2021-07-14 19:31:05,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 4 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:05,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:05,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016609889] [2021-07-14 19:31:05,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016609889] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:05,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27182343] [2021-07-14 19:31:05,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:05,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 19:31:05,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:05,776 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 67 conjunts are in the unsatisfiable core [2021-07-14 19:31:05,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:06,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:06,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:06,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:06,807 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:31:06,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 84 [2021-07-14 19:31:06,823 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-14 19:31:06,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:31:06,842 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-14 19:31:06,842 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:78, output treesize:23 [2021-07-14 19:31:06,914 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:06,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27182343] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:06,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:06,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 40 [2021-07-14 19:31:06,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605064273] [2021-07-14 19:31:06,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-14 19:31:06,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:06,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-14 19:31:06,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1392, Unknown=0, NotChecked=0, Total=1560 [2021-07-14 19:31:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:06,916 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:06,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.15) internal successors, (86), 40 states have internal predecessors, (86), 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) [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:06,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:09,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:10,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 19:31:10,073 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:10,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:10,073 INFO L82 PathProgramCache]: Analyzing trace with hash -104566448, now seen corresponding path program 9 times [2021-07-14 19:31:10,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:10,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433916821] [2021-07-14 19:31:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 24 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:10,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:10,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433916821] [2021-07-14 19:31:10,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433916821] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:10,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091612285] [2021-07-14 19:31:10,236 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 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 [2021-07-14 19:31:10,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-14 19:31:10,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:10,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-14 19:31:10,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 24 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:10,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091612285] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:10,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:10,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 37 [2021-07-14 19:31:10,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745319259] [2021-07-14 19:31:10,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-14 19:31:10,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:10,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-14 19:31:10,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2021-07-14 19:31:10,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:10,649 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:10,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 37 states have internal predecessors, (88), 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) [2021-07-14 19:31:10,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:10,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:10,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 19:31:11,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-14 19:31:11,093 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:11,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:11,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1539962126, now seen corresponding path program 10 times [2021-07-14 19:31:11,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:11,094 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976407442] [2021-07-14 19:31:11,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:11,928 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 9 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:11,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:11,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976407442] [2021-07-14 19:31:11,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976407442] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:11,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829137398] [2021-07-14 19:31:11,929 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 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 [2021-07-14 19:31:11,966 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 19:31:11,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:11,968 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 82 conjunts are in the unsatisfiable core [2021-07-14 19:31:11,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:13,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:13,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:13,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:13,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:13,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:13,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 19:31:13,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 36 disjoint index pairs (out of 91 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 28 [2021-07-14 19:31:13,081 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 19:31:13,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:31:13,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-14 19:31:13,086 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-07-14 19:31:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:13,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829137398] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:13,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:13,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-07-14 19:31:13,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840521277] [2021-07-14 19:31:13,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-07-14 19:31:13,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:13,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-07-14 19:31:13,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1906, Unknown=0, NotChecked=0, Total=2070 [2021-07-14 19:31:13,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:13,114 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:13,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.217391304347826) internal successors, (102), 46 states have internal predecessors, (102), 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) [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 19:31:13,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:17,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 19:31:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-07-14 19:31:17,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-14 19:31:17,617 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:17,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1359054580, now seen corresponding path program 11 times [2021-07-14 19:31:17,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:17,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976184309] [2021-07-14 19:31:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:17,823 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 38 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:17,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:17,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976184309] [2021-07-14 19:31:17,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976184309] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:17,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116390902] [2021-07-14 19:31:17,824 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 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 [2021-07-14 19:31:17,864 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-07-14 19:31:17,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:17,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-14 19:31:17,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 38 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:18,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116390902] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:18,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 19:31:18,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 45 [2021-07-14 19:31:18,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031792264] [2021-07-14 19:31:18,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-07-14 19:31:18,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 19:31:18,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-07-14 19:31:18,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=1608, Unknown=0, NotChecked=0, Total=1980 [2021-07-14 19:31:18,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:18,328 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 19:31:18,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.311111111111111) internal successors, (104), 45 states have internal predecessors, (104), 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) [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:18,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:18,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 19:31:18,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-07-14 19:31:18,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 19:31:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-07-14 19:31:18,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-14 19:31:18,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-14 19:31:18,809 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 19:31:18,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 19:31:18,809 INFO L82 PathProgramCache]: Analyzing trace with hash 303386798, now seen corresponding path program 12 times [2021-07-14 19:31:18,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 19:31:18,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38042416] [2021-07-14 19:31:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 19:31:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 19:31:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 31 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 19:31:20,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 19:31:20,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38042416] [2021-07-14 19:31:20,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38042416] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 19:31:20,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580245634] [2021-07-14 19:31:20,180 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 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 [2021-07-14 19:31:20,244 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-07-14 19:31:20,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 19:31:20,246 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 103 conjunts are in the unsatisfiable core [2021-07-14 19:31:20,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 19:31:22,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 19:31:22,525 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-07-14 19:31:22,733 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-07-14 19:31:22,734 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 19:31:22,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 135 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 36 case distinctions, treesize of input 100 treesize of output 440 [2021-07-14 19:31:23,990 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 329 [2021-07-14 19:31:24,817 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 477 [2021-07-14 19:31:24,933 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 477 [2021-07-14 19:31:25,039 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 611 DAG size of output: 483 [2021-07-14 19:38:34,807 WARN L205 SmtUtils]: Spent 18.71 s on a formula simplification. DAG size of input: 10201 DAG size of output: 9468