/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 01:36:37,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 01:36:37,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 01:36:37,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-02 01:36:37,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe.epf [2021-06-02 01:36:37,365 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 01:36:37,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 01:36:37,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 01:36:37,366 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 01:36:37,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 01:36:37,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 01:36:37,367 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 01:36:37,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 01:36:37,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 01:36:37,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 01:36:37,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 01:36:37,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 01:36:37,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 01:36:37,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 01:36:37,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 01:36:37,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 01:36:37,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 01:36:37,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 01:36:37,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 01:36:37,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 01:36:37,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 01:36:37,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 01:36:37,370 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 01:36:37,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 01:36:37,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 01:36:37,370 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-02 01:36:37,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 01:36:37,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 01:36:37,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 01:36:37,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 01:36:37,686 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-02 01:36:37,688 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-02 01:36:37,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2021-06-02 01:36:37,689 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2021-06-02 01:36:37,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 01:36:37,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-02 01:36:37,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 01:36:37,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 01:36:37,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 01:36:37,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 01:36:37,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 01:36:37,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 01:36:37,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 01:36:37,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/1) ... [2021-06-02 01:36:37,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 01:36:37,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 01:36:37,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 01:36:37,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 01:36:37,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (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 [2021-06-02 01:36:37,982 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-02 01:36:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-02 01:36:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-02 01:36:37,982 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-02 01:36:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-02 01:36:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-02 01:36:37,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-02 01:36:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 01:36:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 01:36:37,985 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-02 01:36:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-02 01:36:37,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-02 01:36:37,986 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-02 01:36:38,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 01:36:38,213 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-02 01:36:38,215 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:36:38 BoogieIcfgContainer [2021-06-02 01:36:38,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 01:36:38,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 01:36:38,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 01:36:38,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 01:36:38,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 01:36:37" (1/2) ... [2021-06-02 01:36:38,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4980b8e5 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 01:36:38, skipping insertion in model container [2021-06-02 01:36:38,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 01:36:38" (2/2) ... [2021-06-02 01:36:38,221 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2021-06-02 01:36:38,238 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 01:36:38,239 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 01:36:38,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-02 01:36:38,240 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 01:36:38,276 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-02 01:36:38,309 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 [2021-06-02 01:36:38,344 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 01:36:38,344 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 01:36:38,345 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 01:36:38,345 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 01:36:38,345 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 01:36:38,345 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 01:36:38,345 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 01:36:38,345 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 01:36:38,433 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:38,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:38,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1251894929, now seen corresponding path program 1 times [2021-06-02 01:36:38,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:38,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300658496] [2021-06-02 01:36:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:38,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:38,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300658496] [2021-06-02 01:36:38,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300658496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:36:38,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:36:38,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 01:36:38,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525018762] [2021-06-02 01:36:38,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:36:38,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:38,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:36:38,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:36:38,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:38,647 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:38,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-06-02 01:36:38,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:38,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 01:36:38,727 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:38,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:38,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1367857430, now seen corresponding path program 2 times [2021-06-02 01:36:38,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:38,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898754022] [2021-06-02 01:36:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-02 01:36:38,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:38,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898754022] [2021-06-02 01:36:38,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898754022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:36:38,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:36:38,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-02 01:36:38,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143152770] [2021-06-02 01:36:38,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 01:36:38,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:38,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 01:36:38,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 01:36:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:38,782 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:38,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2021-06-02 01:36:38,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-02 01:36:38,841 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:38,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1559591817, now seen corresponding path program 3 times [2021-06-02 01:36:38,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:38,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970504246] [2021-06-02 01:36:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:36:38,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:38,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970504246] [2021-06-02 01:36:38,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970504246] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:36:38,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:36:38,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-02 01:36:38,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453045152] [2021-06-02 01:36:38,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-02 01:36:38,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:38,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-02 01:36:38,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-02 01:36:38,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:38,930 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:38,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-06-02 01:36:38,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,930 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:38,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:38,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-02 01:36:38,996 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:38,997 INFO L82 PathProgramCache]: Analyzing trace with hash -467193816, now seen corresponding path program 1 times [2021-06-02 01:36:38,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:38,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536263784] [2021-06-02 01:36:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:36:39,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:39,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536263784] [2021-06-02 01:36:39,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536263784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 01:36:39,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 01:36:39,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-02 01:36:39,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436436653] [2021-06-02 01:36:39,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-02 01:36:39,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:39,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-02 01:36:39,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-02 01:36:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:39,040 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:39,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 01:36:39,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:39,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,099 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-02 01:36:39,099 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:39,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:39,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1954198291, now seen corresponding path program 4 times [2021-06-02 01:36:39,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:39,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64082216] [2021-06-02 01:36:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:36:39,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:39,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64082216] [2021-06-02 01:36:39,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64082216] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:39,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390211314] [2021-06-02 01:36:39,243 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 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 [2021-06-02 01:36:39,292 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 01:36:39,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:36:39,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-02 01:36:39,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:36:39,489 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390211314] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:39,489 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:39,489 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-02 01:36:39,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324949949] [2021-06-02 01:36:39,490 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-02 01:36:39,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:39,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-02 01:36:39,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-06-02 01:36:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:39,490 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:39,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 01:36:39,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:39,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:39,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:39,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:36:39,787 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:39,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:39,788 INFO L82 PathProgramCache]: Analyzing trace with hash 691881653, now seen corresponding path program 5 times [2021-06-02 01:36:39,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:39,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046655175] [2021-06-02 01:36:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:36:39,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:39,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046655175] [2021-06-02 01:36:39,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046655175] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:39,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456276903] [2021-06-02 01:36:39,897 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 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 [2021-06-02 01:36:39,936 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-06-02 01:36:39,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:36:39,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-02 01:36:39,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:36:40,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456276903] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:40,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:40,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-06-02 01:36:40,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9708730] [2021-06-02 01:36:40,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-02 01:36:40,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:40,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-02 01:36:40,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-02 01:36:40,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:40,039 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:40,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 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) [2021-06-02 01:36:40,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:40,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:40,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:40,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:40,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:40,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:40,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:36:40,419 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:40,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:40,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1445595435, now seen corresponding path program 6 times [2021-06-02 01:36:40,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:40,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903679870] [2021-06-02 01:36:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:40,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:40,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903679870] [2021-06-02 01:36:40,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903679870] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:40,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774177260] [2021-06-02 01:36:40,771 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 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 [2021-06-02 01:36:40,813 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-02 01:36:40,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:36:40,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-02 01:36:40,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:41,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:41,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774177260] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:41,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:41,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-06-02 01:36:41,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648509498] [2021-06-02 01:36:41,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-02 01:36:41,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:41,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-02 01:36:41,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2021-06-02 01:36:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:41,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:41,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 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) [2021-06-02 01:36:41,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:41,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:41,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:41,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:41,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:41,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:41,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:41,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:36:41,995 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:41,996 INFO L82 PathProgramCache]: Analyzing trace with hash 891133841, now seen corresponding path program 7 times [2021-06-02 01:36:41,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:41,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006168551] [2021-06-02 01:36:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-06-02 01:36:42,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:42,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006168551] [2021-06-02 01:36:42,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006168551] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:42,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239663614] [2021-06-02 01:36:42,569 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 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 [2021-06-02 01:36:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:42,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-02 01:36:42,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:43,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239663614] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:43,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:43,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 34 [2021-06-02 01:36:43,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120988619] [2021-06-02 01:36:43,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-02 01:36:43,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:43,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-02 01:36:43,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1001, Unknown=0, NotChecked=0, Total=1190 [2021-06-02 01:36:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:43,932 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:43,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.142857142857143) internal successors, (75), 34 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:43,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:44,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:44,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:44,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:44,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:44,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:36:44,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-02 01:36:44,472 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:44,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1539375087, now seen corresponding path program 8 times [2021-06-02 01:36:44,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:44,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506669923] [2021-06-02 01:36:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-06-02 01:36:45,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:45,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506669923] [2021-06-02 01:36:45,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506669923] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:45,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856115031] [2021-06-02 01:36:45,005 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 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 [2021-06-02 01:36:45,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:36:45,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:36:45,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-02 01:36:45,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:45,822 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2021-06-02 01:36:46,000 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2021-06-02 01:36:46,451 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-06-02 01:36:46,824 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:46,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856115031] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:46,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:46,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21] total 36 [2021-06-02 01:36:46,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555989154] [2021-06-02 01:36:46,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-02 01:36:46,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:46,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-02 01:36:46,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1144, Unknown=0, NotChecked=0, Total=1332 [2021-06-02 01:36:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:46,826 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:46,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.135135135135135) internal successors, (79), 36 states have internal predecessors, (79), 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) [2021-06-02 01:36:46,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:46,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:46,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:46,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:46,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:46,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:46,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:46,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:36:46,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:36:47,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:36:47,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-06-02 01:36:47,507 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:47,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1926253295, now seen corresponding path program 9 times [2021-06-02 01:36:47,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:47,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214226825] [2021-06-02 01:36:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-02 01:36:48,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:48,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214226825] [2021-06-02 01:36:48,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214226825] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:48,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400101769] [2021-06-02 01:36:48,636 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 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 [2021-06-02 01:36:48,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-06-02 01:36:48,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:36:48,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 31 conjunts are in the unsatisfiable core [2021-06-02 01:36:48,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:50,212 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2021-06-02 01:36:50,473 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-06-02 01:36:50,730 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-06-02 01:36:51,145 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 99 [2021-06-02 01:36:51,485 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2021-06-02 01:36:51,668 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-06-02 01:36:52,036 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2021-06-02 01:36:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:52,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400101769] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:52,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:52,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 43 [2021-06-02 01:36:52,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024315376] [2021-06-02 01:36:52,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-06-02 01:36:52,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:52,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-06-02 01:36:52,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1588, Unknown=0, NotChecked=0, Total=1892 [2021-06-02 01:36:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:52,188 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:52,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.227272727272727) internal successors, (98), 43 states have internal predecessors, (98), 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) [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:36:52,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:36:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:36:53,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:36:53,216 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-06-02 01:36:53,217 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:36:53,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:36:53,217 INFO L82 PathProgramCache]: Analyzing trace with hash -649515051, now seen corresponding path program 10 times [2021-06-02 01:36:53,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:36:53,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301529580] [2021-06-02 01:36:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:36:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:36:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-06-02 01:36:54,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:36:54,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301529580] [2021-06-02 01:36:54,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301529580] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:54,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915994663] [2021-06-02 01:36:54,364 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 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 [2021-06-02 01:36:54,421 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-02 01:36:54,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:36:54,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-02 01:36:54,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:36:55,882 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 108 [2021-06-02 01:36:56,383 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 129 [2021-06-02 01:36:57,172 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 120 [2021-06-02 01:36:57,487 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-06-02 01:36:58,087 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 136 [2021-06-02 01:36:58,731 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 122 [2021-06-02 01:36:59,232 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 125 [2021-06-02 01:36:59,473 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-06-02 01:36:59,761 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-06-02 01:36:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:36:59,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915994663] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:36:59,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:36:59,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 27] total 41 [2021-06-02 01:36:59,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178506975] [2021-06-02 01:36:59,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-06-02 01:36:59,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:36:59,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-06-02 01:36:59,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1464, Unknown=0, NotChecked=0, Total=1722 [2021-06-02 01:36:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:36:59,931 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:36:59,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 42 states, 42 states have (on average 2.238095238095238) internal successors, (94), 41 states have internal predecessors, (94), 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) [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:36:59,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:37:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:00,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:37:00,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:37:00,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:37:00,757 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:37:00,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:37:00,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1891278345, now seen corresponding path program 11 times [2021-06-02 01:37:00,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:37:00,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87808630] [2021-06-02 01:37:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:37:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:37:02,239 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 29 [2021-06-02 01:37:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 1 proven. 224 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-06-02 01:37:02,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:37:02,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87808630] [2021-06-02 01:37:02,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87808630] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:37:02,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566582179] [2021-06-02 01:37:02,682 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:37:02,734 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2021-06-02 01:37:02,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:37:02,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-02 01:37:02,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:37:04,115 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-06-02 01:37:04,335 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-06-02 01:37:04,616 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-06-02 01:37:04,976 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-06-02 01:37:05,459 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 112 [2021-06-02 01:37:05,712 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-06-02 01:37:06,009 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-06-02 01:37:06,645 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 141 [2021-06-02 01:37:07,062 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-02 01:37:07,419 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-02 01:37:08,152 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2021-06-02 01:37:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:37:08,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566582179] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:37:08,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:37:08,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 30] total 50 [2021-06-02 01:37:08,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58776489] [2021-06-02 01:37:08,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-06-02 01:37:08,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:37:08,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-06-02 01:37:08,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=2280, Unknown=0, NotChecked=0, Total=2550 [2021-06-02 01:37:08,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:37:08,381 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:37:08,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 51 states, 51 states have (on average 2.156862745098039) internal successors, (110), 50 states have internal predecessors, (110), 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) [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:37:08,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:37:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:09,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:37:09,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:37:09,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable136 [2021-06-02 01:37:09,561 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:37:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:37:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1964665872, now seen corresponding path program 12 times [2021-06-02 01:37:09,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:37:09,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63280403] [2021-06-02 01:37:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:37:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:37:10,592 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 40 [2021-06-02 01:37:10,800 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 33 [2021-06-02 01:37:11,604 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-06-02 01:37:12,997 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 156 DAG size of output: 151 [2021-06-02 01:37:13,326 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 28 [2021-06-02 01:37:16,823 WARN L205 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 124 DAG size of output: 110 [2021-06-02 01:37:19,622 WARN L205 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2021-06-02 01:37:19,792 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 16 [2021-06-02 01:37:25,012 WARN L205 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2021-06-02 01:37:31,131 WARN L205 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 113 DAG size of output: 75 [2021-06-02 01:37:39,016 WARN L205 SmtUtils]: Spent 7.78 s on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-02 01:37:41,751 WARN L205 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 112 DAG size of output: 68 [2021-06-02 01:37:43,283 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 93 DAG size of output: 56 [2021-06-02 01:37:43,613 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 26 [2021-06-02 01:37:43,885 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 26 [2021-06-02 01:37:44,271 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 27 [2021-06-02 01:37:44,665 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 27 [2021-06-02 01:37:45,026 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 25 [2021-06-02 01:37:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 2 proven. 227 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-06-02 01:37:45,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:37:45,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63280403] [2021-06-02 01:37:45,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63280403] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:37:45,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370255738] [2021-06-02 01:37:45,140 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:37:45,194 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-06-02 01:37:45,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:37:45,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 43 conjunts are in the unsatisfiable core [2021-06-02 01:37:45,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:37:46,280 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-06-02 01:37:46,697 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-06-02 01:37:46,941 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-06-02 01:37:47,213 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-06-02 01:37:47,859 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 145 [2021-06-02 01:37:48,245 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-06-02 01:37:48,995 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 157 [2021-06-02 01:37:49,709 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 154 [2021-06-02 01:37:50,458 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 154 [2021-06-02 01:37:51,343 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2021-06-02 01:37:51,903 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-06-02 01:37:52,393 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2021-06-02 01:37:52,900 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-06-02 01:37:53,976 WARN L205 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2021-06-02 01:37:54,930 WARN L205 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 171 [2021-06-02 01:37:55,457 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-06-02 01:37:56,171 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2021-06-02 01:37:56,620 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-02 01:37:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:37:56,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370255738] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:37:56,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:37:56,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 36] total 57 [2021-06-02 01:37:56,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585602024] [2021-06-02 01:37:56,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-06-02 01:37:56,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:37:56,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-06-02 01:37:56,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2990, Unknown=0, NotChecked=0, Total=3306 [2021-06-02 01:37:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:37:56,780 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:37:56,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 58 states, 58 states have (on average 2.0689655172413794) internal successors, (120), 57 states have internal predecessors, (120), 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) [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:37:56,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:37:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:37:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:37:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:37:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:37:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:37:56,781 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:37:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:37:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:37:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:37:58,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:37:59,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:37:59,133 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:37:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:37:59,133 INFO L82 PathProgramCache]: Analyzing trace with hash -785302868, now seen corresponding path program 13 times [2021-06-02 01:37:59,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:37:59,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151576023] [2021-06-02 01:37:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:37:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:38:01,152 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 68 [2021-06-02 01:38:01,519 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 103 [2021-06-02 01:38:02,035 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 122 [2021-06-02 01:38:02,372 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 102 [2021-06-02 01:38:02,553 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 25 [2021-06-02 01:38:02,806 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 100 [2021-06-02 01:38:02,985 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 27 [2021-06-02 01:38:03,159 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 112 [2021-06-02 01:38:03,357 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 28 [2021-06-02 01:38:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:38:04,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:38:04,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151576023] [2021-06-02 01:38:04,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151576023] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:38:04,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124275386] [2021-06-02 01:38:04,621 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:38:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:38:04,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 44 conjunts are in the unsatisfiable core [2021-06-02 01:38:04,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:38:06,199 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-06-02 01:38:06,820 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2021-06-02 01:38:07,544 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2021-06-02 01:38:08,559 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 146 [2021-06-02 01:38:09,744 WARN L205 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 183 [2021-06-02 01:38:10,550 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 168 [2021-06-02 01:38:11,813 WARN L205 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 179 [2021-06-02 01:38:12,952 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 179 [2021-06-02 01:38:14,072 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 180 [2021-06-02 01:38:15,123 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 183 [2021-06-02 01:38:16,397 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 208 [2021-06-02 01:38:17,061 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-06-02 01:38:17,689 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-06-02 01:38:18,444 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-06-02 01:38:19,315 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-02 01:38:20,031 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-06-02 01:38:20,711 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-06-02 01:38:21,367 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-06-02 01:38:21,747 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:38:21,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124275386] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:38:21,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:38:21,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 37] total 69 [2021-06-02 01:38:21,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739950275] [2021-06-02 01:38:21,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 70 states [2021-06-02 01:38:21,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:38:21,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-06-02 01:38:21,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=4414, Unknown=0, NotChecked=0, Total=4830 [2021-06-02 01:38:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:38:21,749 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:38:21,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 70 states, 70 states have (on average 2.057142857142857) internal successors, (144), 69 states have internal predecessors, (144), 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) [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:38:21,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:38:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:38:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-02 01:38:24,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217 [2021-06-02 01:38:24,609 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:38:24,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:38:24,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1099942948, now seen corresponding path program 14 times [2021-06-02 01:38:24,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:38:24,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677611483] [2021-06-02 01:38:24,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:38:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:38:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 1 proven. 523 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-02 01:38:28,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:38:28,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677611483] [2021-06-02 01:38:28,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677611483] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:38:28,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157611564] [2021-06-02 01:38:28,720 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 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 [2021-06-02 01:38:28,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-02 01:38:28,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:38:28,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-02 01:38:28,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:38:30,990 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2021-06-02 01:38:31,517 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-06-02 01:38:31,876 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-02 01:38:32,276 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-06-02 01:38:33,284 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 197 [2021-06-02 01:38:33,910 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-02 01:38:34,915 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 194 [2021-06-02 01:38:35,848 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 181 [2021-06-02 01:38:36,824 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 176 [2021-06-02 01:38:37,459 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-06-02 01:38:38,894 WARN L205 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 220 [2021-06-02 01:38:39,711 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2021-06-02 01:38:40,523 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-06-02 01:38:41,235 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2021-06-02 01:38:42,015 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2021-06-02 01:38:42,875 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-06-02 01:38:43,722 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-06-02 01:38:44,427 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2021-06-02 01:38:45,962 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 204 DAG size of output: 203 [2021-06-02 01:38:46,457 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:38:46,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157611564] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:38:46,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:38:46,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 41] total 76 [2021-06-02 01:38:46,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995116320] [2021-06-02 01:38:46,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-06-02 01:38:46,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:38:46,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-06-02 01:38:46,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=618, Invalid=5234, Unknown=0, NotChecked=0, Total=5852 [2021-06-02 01:38:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:38:46,459 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:38:46,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 77 states, 77 states have (on average 2.0779220779220777) internal successors, (160), 76 states have internal predecessors, (160), 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) [2021-06-02 01:38:46,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:46,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:46,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-02 01:38:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:38:51,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-02 01:38:51,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-02 01:38:51,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-02 01:38:51,240 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:38:51,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:38:51,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1369613190, now seen corresponding path program 15 times [2021-06-02 01:38:51,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:38:51,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809050591] [2021-06-02 01:38:51,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:38:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 01:38:52,769 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 27 [2021-06-02 01:38:53,157 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 52 [2021-06-02 01:38:53,444 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 52 [2021-06-02 01:38:53,766 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 54 [2021-06-02 01:38:54,101 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 46 [2021-06-02 01:38:54,357 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 57 [2021-06-02 01:38:55,370 WARN L205 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 50 [2021-06-02 01:38:56,166 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 55 [2021-06-02 01:38:57,071 WARN L205 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 47 [2021-06-02 01:38:58,389 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 220 DAG size of output: 52 [2021-06-02 01:38:59,485 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 206 DAG size of output: 47 [2021-06-02 01:39:09,397 WARN L205 SmtUtils]: Spent 9.90 s on a formula simplification. DAG size of input: 237 DAG size of output: 43 [2021-06-02 01:39:25,452 WARN L205 SmtUtils]: Spent 16.04 s on a formula simplification. DAG size of input: 244 DAG size of output: 34 [2021-06-02 01:39:41,207 WARN L205 SmtUtils]: Spent 15.74 s on a formula simplification. DAG size of input: 242 DAG size of output: 34 [2021-06-02 01:40:00,486 WARN L205 SmtUtils]: Spent 19.25 s on a formula simplification. DAG size of input: 238 DAG size of output: 41 [2021-06-02 01:40:53,751 WARN L205 SmtUtils]: Spent 53.22 s on a formula simplification. DAG size of input: 254 DAG size of output: 54 [2021-06-02 01:41:56,609 WARN L205 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 327 DAG size of output: 84 [2021-06-02 01:41:56,771 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 29 [2021-06-02 01:42:11,103 WARN L205 SmtUtils]: Spent 14.33 s on a formula simplification. DAG size of input: 346 DAG size of output: 95 [2021-06-02 01:42:26,352 WARN L205 SmtUtils]: Spent 15.22 s on a formula simplification. DAG size of input: 291 DAG size of output: 97 [2021-06-02 01:42:45,596 WARN L205 SmtUtils]: Spent 19.22 s on a formula simplification. DAG size of input: 324 DAG size of output: 120 [2021-06-02 01:43:15,440 WARN L205 SmtUtils]: Spent 29.81 s on a formula simplification. DAG size of input: 323 DAG size of output: 116 [2021-06-02 01:43:15,608 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 28 [2021-06-02 01:43:42,635 WARN L205 SmtUtils]: Spent 27.02 s on a formula simplification. DAG size of input: 325 DAG size of output: 138 [2021-06-02 01:43:42,882 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 34 [2021-06-02 01:43:58,351 WARN L205 SmtUtils]: Spent 15.47 s on a formula simplification. DAG size of input: 279 DAG size of output: 104 [2021-06-02 01:43:58,510 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 28 [2021-06-02 01:44:12,056 WARN L205 SmtUtils]: Spent 13.54 s on a formula simplification. DAG size of input: 283 DAG size of output: 104 [2021-06-02 01:44:12,205 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 18 [2021-06-02 01:44:14,770 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 182 DAG size of output: 88 [2021-06-02 01:44:17,888 WARN L205 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 158 DAG size of output: 80 [2021-06-02 01:44:18,252 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 71 [2021-06-02 01:44:18,735 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 73 [2021-06-02 01:44:19,182 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 71 [2021-06-02 01:44:19,751 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-06-02 01:44:19,894 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2021-06-02 01:44:20,257 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 66 [2021-06-02 01:44:20,400 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 29 [2021-06-02 01:44:20,666 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 53 [2021-06-02 01:44:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 3 proven. 448 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-06-02 01:44:20,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 01:44:20,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809050591] [2021-06-02 01:44:20,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809050591] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:20,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413491439] [2021-06-02 01:44:20,946 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 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 [2021-06-02 01:44:21,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 25 check-sat command(s) [2021-06-02 01:44:21,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-02 01:44:21,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 53 conjunts are in the unsatisfiable core [2021-06-02 01:44:21,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-02 01:44:23,148 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2021-06-02 01:44:23,639 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-06-02 01:44:24,177 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2021-06-02 01:44:24,565 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-06-02 01:44:25,570 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 213 [2021-06-02 01:44:26,188 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2021-06-02 01:44:27,241 WARN L205 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 212 [2021-06-02 01:44:28,203 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 201 [2021-06-02 01:44:29,550 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-06-02 01:44:30,219 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-06-02 01:44:31,640 WARN L205 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 242 [2021-06-02 01:44:32,474 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2021-06-02 01:44:33,568 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-06-02 01:44:34,513 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-06-02 01:44:35,413 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2021-06-02 01:44:36,337 WARN L205 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-06-02 01:44:36,547 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 354 [2021-06-02 01:44:36,670 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 382 DAG size of output: 354 [2021-06-02 01:44:38,663 WARN L205 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 354 DAG size of output: 270 [2021-06-02 01:44:39,663 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2021-06-02 01:44:40,837 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-06-02 01:44:41,690 WARN L205 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-06-02 01:44:43,670 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 251 DAG size of output: 250 [2021-06-02 01:44:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 01:44:44,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413491439] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-02 01:44:44,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-02 01:44:44,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 44] total 66 [2021-06-02 01:44:44,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225204819] [2021-06-02 01:44:44,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-06-02 01:44:44,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 01:44:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-06-02 01:44:44,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=3926, Unknown=0, NotChecked=0, Total=4422 [2021-06-02 01:44:44,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:44,421 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 01:44:44,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 67 states, 67 states have (on average 2.1044776119402986) internal successors, (141), 66 states have internal predecessors, (141), 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) [2021-06-02 01:44:44,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:44,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:44,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-06-02 01:44:44,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 01:44:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-02 01:44:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-02 01:44:47,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable401 [2021-06-02 01:44:47,611 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-02 01:44:47,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 01:44:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash -414648570, now seen corresponding path program 16 times [2021-06-02 01:44:47,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 01:44:47,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394794588] [2021-06-02 01:44:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 01:44:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown