/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 18:15:21,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 18:15:21,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 18:15:21,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 18:15:21,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf [2021-03-12 18:15:21,993 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 18:15:21,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 18:15:21,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 18:15:21,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 18:15:21,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 18:15:21,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 18:15:21,996 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 18:15:21,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 18:15:21,997 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 18:15:21,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 18:15:21,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 18:15:21,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 18:15:21,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 18:15:21,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 18:15:21,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 18:15:21,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 18:15:21,999 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 18:15:22,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 18:15:22,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 18:15:22,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 18:15:22,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 18:15:22,219 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 18:15:22,220 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 18:15:22,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl [2021-03-12 18:15:22,221 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/threaded-sum-2.wvr.bpl' [2021-03-12 18:15:22,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 18:15:22,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 18:15:22,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 18:15:22,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 18:15:22,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 18:15:22,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 18:15:22,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 18:15:22,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 18:15:22,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 18:15:22,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/1) ... [2021-03-12 18:15:22,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 18:15:22,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 18:15:22,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 18:15:22,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 18:15:22,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (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 [2021-03-12 18:15:22,329 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 18:15:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 18:15:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 18:15:22,329 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 18:15:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 18:15:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 18:15:22,329 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 18:15:22,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 18:15:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 18:15:22,330 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 18:15:22,541 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 18:15:22,541 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 18:15:22,542 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 06:15:22 BoogieIcfgContainer [2021-03-12 18:15:22,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 18:15:22,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 18:15:22,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 18:15:22,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 18:15:22,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 06:15:22" (1/2) ... [2021-03-12 18:15:22,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41753854 and model type threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 06:15:22, skipping insertion in model container [2021-03-12 18:15:22,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 06:15:22" (2/2) ... [2021-03-12 18:15:22,547 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-2.wvr.bpl [2021-03-12 18:15:22,550 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 18:15:22,550 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 18:15:22,552 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 18:15:22,553 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 18:15:22,569 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-12 18:15:22,580 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-03-12 18:15:22,617 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 18:15:22,617 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 18:15:22,618 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 18:15:22,618 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 18:15:22,618 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 18:15:22,618 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 18:15:22,618 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 18:15:22,618 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-03-12 18:15:22,695 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:22,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:22,699 INFO L82 PathProgramCache]: Analyzing trace with hash 261148054, now seen corresponding path program 1 times [2021-03-12 18:15:22,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:22,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940745631] [2021-03-12 18:15:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:22,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:22,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940745631] [2021-03-12 18:15:22,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844940182] [2021-03-12 18:15:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:22,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-12 18:15:22,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:23,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:23,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-03-12 18:15:23,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274166407] [2021-03-12 18:15:23,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 18:15:23,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:23,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 18:15:23,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-12 18:15:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:23,065 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:23,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-03-12 18:15:23,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:23,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:23,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-03-12 18:15:23,351 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:23,352 INFO L82 PathProgramCache]: Analyzing trace with hash 953787150, now seen corresponding path program 2 times [2021-03-12 18:15:23,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:23,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420447389] [2021-03-12 18:15:23,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 18:15:23,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420447389] [2021-03-12 18:15:23,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438763405] [2021-03-12 18:15:23,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:23,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:15:23,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:23,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-03-12 18:15:23,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-12 18:15:23,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:23,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-03-12 18:15:23,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734615322] [2021-03-12 18:15:23,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-12 18:15:23,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:23,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-12 18:15:23,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-12 18:15:23,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:23,573 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:23,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-03-12 18:15:23,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:23,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:23,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:23,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:23,831 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:23,832 INFO L82 PathProgramCache]: Analyzing trace with hash -864355354, now seen corresponding path program 3 times [2021-03-12 18:15:23,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:23,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803723482] [2021-03-12 18:15:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:24,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803723482] [2021-03-12 18:15:24,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111801934] [2021-03-12 18:15:24,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:24,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-03-12 18:15:24,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:24,222 WARN L261 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 27 conjunts are in the unsatisfiable core [2021-03-12 18:15:24,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:25,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:25,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 35 [2021-03-12 18:15:25,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350413893] [2021-03-12 18:15:25,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-12 18:15:25,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:25,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-12 18:15:25,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2021-03-12 18:15:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:25,143 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:25,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 35 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 18:15:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:25,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:25,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:25,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:25,833 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:25,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:25,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1335559744, now seen corresponding path program 4 times [2021-03-12 18:15:25,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:25,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392242320] [2021-03-12 18:15:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 11 proven. 96 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-03-12 18:15:26,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392242320] [2021-03-12 18:15:26,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62256728] [2021-03-12 18:15:26,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:26,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 18:15:26,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:26,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 42 conjunts are in the unsatisfiable core [2021-03-12 18:15:26,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:27,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:27,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 29] total 47 [2021-03-12 18:15:27,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514242430] [2021-03-12 18:15:27,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-03-12 18:15:27,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:27,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-03-12 18:15:27,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2004, Unknown=0, NotChecked=0, Total=2256 [2021-03-12 18:15:27,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:27,533 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:27,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 48 states, 48 states have (on average 1.7916666666666667) internal successors, (86), 47 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 18:15:27,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:27,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:27,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:27,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:28,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:28,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-03-12 18:15:28,586 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:28,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:28,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1193034194, now seen corresponding path program 5 times [2021-03-12 18:15:28,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:28,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486315302] [2021-03-12 18:15:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 32 proven. 193 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-03-12 18:15:29,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486315302] [2021-03-12 18:15:29,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468010924] [2021-03-12 18:15:29,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:29,430 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-03-12 18:15:29,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:29,431 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 57 conjunts are in the unsatisfiable core [2021-03-12 18:15:29,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:31,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:31,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 38] total 64 [2021-03-12 18:15:31,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683210784] [2021-03-12 18:15:31,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-03-12 18:15:31,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:31,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-03-12 18:15:31,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=389, Invalid=3771, Unknown=0, NotChecked=0, Total=4160 [2021-03-12 18:15:31,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:31,287 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:31,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 65 states, 65 states have (on average 1.7076923076923076) internal successors, (111), 64 states have internal predecessors, (111), 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) [2021-03-12 18:15:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:31,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:31,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:31,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:31,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:32,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:32,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:32,930 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:32,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:32,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1731644868, now seen corresponding path program 6 times [2021-03-12 18:15:32,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:32,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291593922] [2021-03-12 18:15:32,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 73 proven. 315 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-03-12 18:15:33,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291593922] [2021-03-12 18:15:33,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307923949] [2021-03-12 18:15:33,570 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:33,605 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2021-03-12 18:15:33,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:33,606 WARN L261 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 75 conjunts are in the unsatisfiable core [2021-03-12 18:15:33,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:35,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:35,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 45] total 73 [2021-03-12 18:15:35,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821319072] [2021-03-12 18:15:35,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 74 states [2021-03-12 18:15:35,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:35,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-03-12 18:15:35,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=4867, Unknown=0, NotChecked=0, Total=5402 [2021-03-12 18:15:35,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:35,966 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:35,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 74 states, 74 states have (on average 1.837837837837838) internal successors, (136), 73 states have internal predecessors, (136), 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) [2021-03-12 18:15:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:15:37,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-03-12 18:15:37,440 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:37,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:37,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1982683314, now seen corresponding path program 7 times [2021-03-12 18:15:37,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:37,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638327154] [2021-03-12 18:15:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 125 proven. 471 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-03-12 18:15:38,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638327154] [2021-03-12 18:15:38,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457793383] [2021-03-12 18:15:38,120 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:38,184 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 87 conjunts are in the unsatisfiable core [2021-03-12 18:15:38,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 0 proven. 619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:41,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:41,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 56] total 89 [2021-03-12 18:15:41,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505424784] [2021-03-12 18:15:41,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 90 states [2021-03-12 18:15:41,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:41,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-03-12 18:15:41,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=753, Invalid=7257, Unknown=0, NotChecked=0, Total=8010 [2021-03-12 18:15:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:41,308 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:41,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 90 states, 90 states have (on average 1.788888888888889) internal successors, (161), 89 states have internal predecessors, (161), 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) [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:15:41,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:15:42,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:15:42,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-03-12 18:15:42,960 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:42,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:42,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1930111672, now seen corresponding path program 8 times [2021-03-12 18:15:42,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:42,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871819595] [2021-03-12 18:15:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:43,837 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 191 proven. 658 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-03-12 18:15:43,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871819595] [2021-03-12 18:15:43,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201713299] [2021-03-12 18:15:43,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:43,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:15:43,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:43,873 WARN L261 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 102 conjunts are in the unsatisfiable core [2021-03-12 18:15:43,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 0 proven. 877 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:48,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:48,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 63] total 101 [2021-03-12 18:15:48,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061498968] [2021-03-12 18:15:48,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2021-03-12 18:15:48,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:48,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-03-12 18:15:48,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=909, Invalid=9393, Unknown=0, NotChecked=0, Total=10302 [2021-03-12 18:15:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:48,046 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:48,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 102 states, 102 states have (on average 1.8235294117647058) internal successors, (186), 101 states have internal predecessors, (186), 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) [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:15:48,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:15:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:15:50,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:50,523 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:15:50,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:15:50,524 INFO L82 PathProgramCache]: Analyzing trace with hash -440927434, now seen corresponding path program 9 times [2021-03-12 18:15:50,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:15:50,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632255624] [2021-03-12 18:15:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:15:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:15:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 226 proven. 921 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-03-12 18:15:51,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632255624] [2021-03-12 18:15:51,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552403365] [2021-03-12 18:15:51,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:15:51,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2021-03-12 18:15:51,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:15:51,939 WARN L261 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 124 conjunts are in the unsatisfiable core [2021-03-12 18:15:51,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:15:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 0 proven. 1180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:15:58,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:15:58,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 74] total 124 [2021-03-12 18:15:58,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291180399] [2021-03-12 18:15:58,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 125 states [2021-03-12 18:15:58,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:15:58,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-03-12 18:15:58,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1261, Invalid=14239, Unknown=0, NotChecked=0, Total=15500 [2021-03-12 18:15:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:15:58,181 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:15:58,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 125 states, 125 states have (on average 1.688) internal successors, (211), 124 states have internal predecessors, (211), 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) [2021-03-12 18:15:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:15:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:15:58,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:15:58,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:15:58,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:15:58,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:15:58,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:15:58,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:15:58,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:01,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:01,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:16:01,749 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:16:01,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:16:01,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1954700492, now seen corresponding path program 10 times [2021-03-12 18:16:01,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:16:01,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688346875] [2021-03-12 18:16:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:16:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:16:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 302 proven. 1188 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-03-12 18:16:03,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688346875] [2021-03-12 18:16:03,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018291646] [2021-03-12 18:16:03,375 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:16:03,414 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 18:16:03,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:16:03,416 WARN L261 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 132 conjunts are in the unsatisfiable core [2021-03-12 18:16:03,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:16:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 0 proven. 1528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:16:11,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:16:11,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 83] total 139 [2021-03-12 18:16:11,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830283282] [2021-03-12 18:16:11,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 140 states [2021-03-12 18:16:11,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:16:11,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2021-03-12 18:16:11,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1429, Invalid=18031, Unknown=0, NotChecked=0, Total=19460 [2021-03-12 18:16:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:11,449 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:16:11,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 140 states, 140 states have (on average 1.6857142857142857) internal successors, (236), 139 states have internal predecessors, (236), 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) [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:11,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:16:16,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable121 [2021-03-12 18:16:16,063 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:16:16,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:16:16,063 INFO L82 PathProgramCache]: Analyzing trace with hash 58516922, now seen corresponding path program 11 times [2021-03-12 18:16:16,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:16:16,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308715813] [2021-03-12 18:16:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:16:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:16:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 389 proven. 1489 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-03-12 18:16:18,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308715813] [2021-03-12 18:16:18,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526335664] [2021-03-12 18:16:18,163 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:16:18,232 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 37 check-sat command(s) [2021-03-12 18:16:18,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:16:18,234 WARN L261 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 147 conjunts are in the unsatisfiable core [2021-03-12 18:16:18,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:16:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 0 proven. 1921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:16:28,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:16:28,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 92] total 154 [2021-03-12 18:16:28,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345069161] [2021-03-12 18:16:28,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 155 states [2021-03-12 18:16:28,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:16:28,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2021-03-12 18:16:28,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1712, Invalid=22158, Unknown=0, NotChecked=0, Total=23870 [2021-03-12 18:16:28,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:28,332 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:16:28,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 155 states, 155 states have (on average 1.6838709677419355) internal successors, (261), 154 states have internal predecessors, (261), 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) [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:16:28,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:33,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:16:33,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:16:33,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable156 [2021-03-12 18:16:33,717 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:16:33,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:16:33,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1896653904, now seen corresponding path program 12 times [2021-03-12 18:16:33,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:16:33,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592771448] [2021-03-12 18:16:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:16:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:16:36,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 487 proven. 1824 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-03-12 18:16:36,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592771448] [2021-03-12 18:16:36,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695468875] [2021-03-12 18:16:36,118 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:16:36,191 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 41 check-sat command(s) [2021-03-12 18:16:36,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:16:36,194 WARN L261 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 162 conjunts are in the unsatisfiable core [2021-03-12 18:16:36,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:16:48,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 0 proven. 2359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:16:48,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:16:48,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 99] total 167 [2021-03-12 18:16:48,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847358670] [2021-03-12 18:16:48,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 168 states [2021-03-12 18:16:48,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:16:48,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2021-03-12 18:16:48,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1825, Invalid=26231, Unknown=0, NotChecked=0, Total=28056 [2021-03-12 18:16:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:48,171 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:16:48,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 168 states, 168 states have (on average 1.7023809523809523) internal successors, (286), 167 states have internal predecessors, (286), 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) [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:48,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:48,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:16:48,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:16:48,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:16:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:16:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:16:54,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195,14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:16:54,118 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:16:54,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:16:54,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1158326210, now seen corresponding path program 13 times [2021-03-12 18:16:54,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:16:54,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639063518] [2021-03-12 18:16:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:16:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:16:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2842 backedges. 731 proven. 2058 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-03-12 18:16:56,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639063518] [2021-03-12 18:16:56,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370189944] [2021-03-12 18:16:56,453 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:16:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:16:56,502 WARN L261 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 177 conjunts are in the unsatisfiable core [2021-03-12 18:16:56,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:17:09,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2842 backedges. 0 proven. 2842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:17:09,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:17:09,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 110] total 173 [2021-03-12 18:17:09,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141354657] [2021-03-12 18:17:09,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 174 states [2021-03-12 18:17:09,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:17:09,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2021-03-12 18:17:09,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2538, Invalid=27564, Unknown=0, NotChecked=0, Total=30102 [2021-03-12 18:17:09,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:17:09,428 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:17:09,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 174 states, 174 states have (on average 1.7873563218390804) internal successors, (311), 173 states have internal predecessors, (311), 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) [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:17:09,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:17:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:17:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:17:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:17:14,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:17:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:17:15,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:17:15,189 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:17:15,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:17:15,190 INFO L82 PathProgramCache]: Analyzing trace with hash 650056748, now seen corresponding path program 14 times [2021-03-12 18:17:15,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:17:15,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337077029] [2021-03-12 18:17:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:17:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:17:18,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 881 proven. 2431 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-03-12 18:17:18,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337077029] [2021-03-12 18:17:18,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642454998] [2021-03-12 18:17:18,121 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:17:18,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 18:17:18,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:17:18,174 WARN L261 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 192 conjunts are in the unsatisfiable core [2021-03-12 18:17:18,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:17:30,686 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:17:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 0 proven. 3370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:17:36,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:17:36,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 117] total 185 [2021-03-12 18:17:36,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206694093] [2021-03-12 18:17:36,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 186 states [2021-03-12 18:17:36,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:17:36,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2021-03-12 18:17:36,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2736, Invalid=31674, Unknown=0, NotChecked=0, Total=34410 [2021-03-12 18:17:36,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:17:36,147 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:17:36,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 186 states, 186 states have (on average 1.8064516129032258) internal successors, (336), 185 states have internal predecessors, (336), 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) [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:17:36,148 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:17:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:17:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:17:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:17:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:17:44,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable287 [2021-03-12 18:17:44,187 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:17:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:17:44,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1260032706, now seen corresponding path program 15 times [2021-03-12 18:17:44,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:17:44,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353565768] [2021-03-12 18:17:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:17:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:17:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 847 proven. 3033 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-03-12 18:17:49,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353565768] [2021-03-12 18:17:49,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243646662] [2021-03-12 18:17:49,836 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:17:49,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 53 check-sat command(s) [2021-03-12 18:17:49,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:17:49,951 WARN L261 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 220 conjunts are in the unsatisfiable core [2021-03-12 18:17:49,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:18:16,825 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:17,685 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:18,535 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:19,342 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:20,178 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:21,093 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:22,026 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:22,900 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:23,886 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-03-12 18:18:24,815 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2021-03-12 18:18:25,865 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2021-03-12 18:18:26,928 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 26 [2021-03-12 18:18:27,951 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2021-03-12 18:18:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 0 proven. 3943 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:18:28,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:18:28,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 126] total 212 [2021-03-12 18:18:28,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463424813] [2021-03-12 18:18:28,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 213 states [2021-03-12 18:18:28,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:18:28,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2021-03-12 18:18:28,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2966, Invalid=42190, Unknown=0, NotChecked=0, Total=45156 [2021-03-12 18:18:28,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:18:28,427 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:18:28,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 213 states, 213 states have (on average 1.6948356807511737) internal successors, (361), 212 states have internal predecessors, (361), 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) [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:18:28,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:18:37,933 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 21 [2021-03-12 18:18:39,443 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 23 [2021-03-12 18:18:40,579 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 22 [2021-03-12 18:18:42,490 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 15 [2021-03-12 18:18:43,254 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 19 [2021-03-12 18:18:44,002 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 17 [2021-03-12 18:18:44,414 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 18 [2021-03-12 18:18:44,793 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 18 [2021-03-12 18:18:45,126 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 17 [2021-03-12 18:18:45,465 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 18 [2021-03-12 18:18:45,845 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 17 [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:18:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:18:47,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:18:47,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:18:47,668 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:18:47,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:18:47,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1800172376, now seen corresponding path program 16 times [2021-03-12 18:18:47,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:18:47,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976957527] [2021-03-12 18:18:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:18:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:18:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 4561 backedges. 1223 proven. 3270 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-03-12 18:18:54,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976957527] [2021-03-12 18:18:54,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131635874] [2021-03-12 18:18:54,830 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:18:54,890 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-12 18:18:54,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:18:54,896 WARN L261 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 222 conjunts are in the unsatisfiable core [2021-03-12 18:18:54,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:19:14,717 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:19:15,762 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-12 18:19:28,817 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:29,976 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:31,308 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:32,617 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:33,811 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:34,980 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:36,400 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:37,553 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:38,693 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:39,985 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:19:41,137 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2021-03-12 18:19:42,284 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-03-12 18:19:43,493 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2021-03-12 18:19:44,134 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-03-12 18:19:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4561 backedges. 0 proven. 4561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:19:45,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:19:45,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 137] total 215 [2021-03-12 18:19:45,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462242009] [2021-03-12 18:19:45,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 216 states [2021-03-12 18:19:45,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:19:45,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2021-03-12 18:19:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3822, Invalid=42618, Unknown=0, NotChecked=0, Total=46440 [2021-03-12 18:19:45,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:19:45,281 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:19:45,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 216 states, 216 states have (on average 1.787037037037037) internal successors, (386), 215 states have internal predecessors, (386), 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) [2021-03-12 18:19:45,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:19:45,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:19:45,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:19:45,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:19:45,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:19:45,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:19:45,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:20:11,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:20:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:20:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:20:11,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:20:11,314 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:20:11,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:20:11,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1436166842, now seen corresponding path program 17 times [2021-03-12 18:20:11,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:20:11,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749042781] [2021-03-12 18:20:11,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:20:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:20:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5224 backedges. 1142 proven. 4009 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-03-12 18:20:26,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749042781] [2021-03-12 18:20:26,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716745023] [2021-03-12 18:20:26,771 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:20:26,892 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 61 check-sat command(s) [2021-03-12 18:20:26,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:20:26,897 WARN L261 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 237 conjunts are in the unsatisfiable core [2021-03-12 18:20:26,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:21:00,664 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:21:02,130 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:21:03,710 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:21:08,422 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 16 [2021-03-12 18:21:09,774 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-12 18:21:23,126 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:21:35,288 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:37,718 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:40,209 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:42,692 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:45,258 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:47,783 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:50,073 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:52,388 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:54,994 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:57,501 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:21:59,761 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:22:02,164 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2021-03-12 18:22:04,619 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-03-12 18:22:06,975 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2021-03-12 18:22:07,984 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-03-12 18:22:09,736 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-03-12 18:22:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 5224 backedges. 0 proven. 5224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:22:09,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:22:09,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 146] total 244 [2021-03-12 18:22:09,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59225230] [2021-03-12 18:22:09,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 245 states [2021-03-12 18:22:09,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:22:09,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 245 interpolants. [2021-03-12 18:22:09,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3935, Invalid=55845, Unknown=0, NotChecked=0, Total=59780 [2021-03-12 18:22:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:22:09,807 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:22:09,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 245 states, 245 states have (on average 1.6775510204081632) internal successors, (411), 244 states have internal predecessors, (411), 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) [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:22:09,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:22:09,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:22:09,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:22:09,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:22:09,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:22:09,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:22:31,337 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2021-03-12 18:22:32,819 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 22 [2021-03-12 18:22:33,957 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2021-03-12 18:22:35,901 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 21 [2021-03-12 18:22:37,049 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2021-03-12 18:22:37,845 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2021-03-12 18:22:39,584 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 23 [2021-03-12 18:22:40,668 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2021-03-12 18:22:41,148 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2021-03-12 18:22:42,019 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 21 [2021-03-12 18:22:46,508 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 15 [2021-03-12 18:22:47,952 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 18 [2021-03-12 18:22:49,394 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 18 [2021-03-12 18:22:50,094 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 18 [2021-03-12 18:22:50,779 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 17 [2021-03-12 18:22:51,412 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 18 [2021-03-12 18:22:52,032 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 18 [2021-03-12 18:22:52,596 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 17 [2021-03-12 18:22:53,159 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 18 [2021-03-12 18:22:53,698 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 17 [2021-03-12 18:22:54,244 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 17 [2021-03-12 18:22:54,775 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 17 [2021-03-12 18:22:55,242 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 18 [2021-03-12 18:22:55,660 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 18 [2021-03-12 18:22:55,994 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 19 [2021-03-12 18:22:56,289 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2021-03-12 18:22:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:22:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:22:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:22:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:22:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:22:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:22:56,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:22:56,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-03-12 18:22:57,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable441 [2021-03-12 18:22:57,086 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:22:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:22:57,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1327727908, now seen corresponding path program 18 times [2021-03-12 18:22:57,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:22:57,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613668559] [2021-03-12 18:22:57,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:22:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:23:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5932 backedges. 1621 proven. 4233 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-03-12 18:23:14,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613668559] [2021-03-12 18:23:14,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331045613] [2021-03-12 18:23:14,214 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:23:14,348 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 65 check-sat command(s) [2021-03-12 18:23:14,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 18:23:14,352 WARN L261 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 268 conjunts are in the unsatisfiable core [2021-03-12 18:23:14,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:23:26,658 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:27,152 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:28,173 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:30,894 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:31,801 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:32,244 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 16 [2021-03-12 18:23:32,696 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 18 [2021-03-12 18:23:46,712 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:47,575 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:48,405 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:49,145 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:49,899 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:50,611 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:51,349 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:51,997 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:52,699 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:53,377 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:54,006 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:54,671 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:55,293 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:55,903 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:23:56,488 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 16 [2021-03-12 18:23:57,640 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-03-12 18:23:58,237 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-12 18:23:58,808 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-12 18:24:05,277 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:24:20,615 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:24:22,707 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 18:24:24,592 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-03-12 18:24:27,467 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:30,053 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:32,664 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:35,402 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:37,927 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:40,351 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:42,646 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:45,053 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:47,540 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:49,782 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:51,786 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:53,917 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2021-03-12 18:24:55,952 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2021-03-12 18:24:58,097 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2021-03-12 18:25:00,260 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2021-03-12 18:25:01,316 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-03-12 18:25:02,126 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 18:25:03,185 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2021-03-12 18:25:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5932 backedges. 0 proven. 5932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:25:03,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:25:03,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 155] total 243 [2021-03-12 18:25:03,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572134922] [2021-03-12 18:25:03,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 244 states [2021-03-12 18:25:03,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:25:03,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 244 interpolants. [2021-03-12 18:25:03,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5246, Invalid=54046, Unknown=0, NotChecked=0, Total=59292 [2021-03-12 18:25:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:25:03,259 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:25:03,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 244 states, 244 states have (on average 1.7868852459016393) internal successors, (436), 243 states have internal predecessors, (436), 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) [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:25:03,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:25:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:25:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:25:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-03-12 18:25:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:25:31,758 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2021-03-12 18:25:34,939 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2021-03-12 18:25:36,659 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2021-03-12 18:25:37,201 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:25:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-03-12 18:25:49,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-03-12 18:25:49,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:25:49,584 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:25:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:25:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash -355442742, now seen corresponding path program 19 times [2021-03-12 18:25:49,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:25:49,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253079852] [2021-03-12 18:25:49,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:25:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:26:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6685 backedges. 1841 proven. 4761 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-03-12 18:26:09,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253079852] [2021-03-12 18:26:09,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255491659] [2021-03-12 18:26:09,759 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 18:26:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 18:26:09,838 WARN L261 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 267 conjunts are in the unsatisfiable core [2021-03-12 18:26:09,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 18:26:24,262 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 17 [2021-03-12 18:26:24,894 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2021-03-12 18:26:25,639 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:26,313 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:27,010 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:27,682 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:28,305 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:28,964 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:29,563 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 17 [2021-03-12 18:26:30,155 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 19 [2021-03-12 18:26:30,752 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:31,369 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:31,952 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:32,496 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:33,022 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:33,604 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 19 [2021-03-12 18:26:34,124 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 16 [2021-03-12 18:26:34,660 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 18 [2021-03-12 18:27:02,555 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 18:27:03,268 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-03-12 18:27:03,929 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-12 18:27:04,694 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-12 18:27:05,417 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-12 18:27:06,178 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-03-12 18:27:06,891 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 18:27:07,664 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:08,402 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:09,143 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:09,908 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:10,743 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:11,546 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:12,444 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:13,290 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:14,181 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:15,023 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:16,121 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:17,038 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:17,961 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:18,762 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:19,817 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:20,772 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:21,855 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:22,855 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:24,034 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:25,130 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:26,343 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:27,270 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:28,321 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:29,380 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:30,434 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:31,527 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-03-12 18:27:32,719 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-12 18:27:34,148 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-12 18:27:35,030 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-03-12 18:27:36,199 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-03-12 18:27:38,738 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:41,147 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:43,676 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:46,327 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:48,970 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:51,492 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:54,059 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:56,752 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:27:59,363 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:28:01,971 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:28:04,609 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:28:07,369 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:28:09,955 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2021-03-12 18:28:12,422 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2021-03-12 18:28:14,733 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 27 [2021-03-12 18:28:17,123 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 28 [2021-03-12 18:28:18,241 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2021-03-12 18:28:19,234 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-12 18:28:20,207 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-03-12 18:28:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 6685 backedges. 0 proven. 6685 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 18:28:20,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 18:28:20,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 164] total 257 [2021-03-12 18:28:20,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481515069] [2021-03-12 18:28:20,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 258 states [2021-03-12 18:28:20,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 18:28:20,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2021-03-12 18:28:20,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5367, Invalid=60939, Unknown=0, NotChecked=0, Total=66306 [2021-03-12 18:28:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:28:20,283 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 18:28:20,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 258 states, 258 states have (on average 1.7868217054263567) internal successors, (461), 257 states have internal predecessors, (461), 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) [2021-03-12 18:28:20,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:28:20,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:28:20,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2021-03-12 18:28:20,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 18:28:56,238 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2021-03-12 18:29:04,752 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2021-03-12 18:29:19,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-03-12 18:29:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-03-12 18:29:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-03-12 18:29:19,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable555 [2021-03-12 18:29:19,710 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 18:29:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 18:29:19,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1662927456, now seen corresponding path program 20 times [2021-03-12 18:29:19,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 18:29:19,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638429328] [2021-03-12 18:29:19,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 18:29:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-03-12 18:29:40,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-03-12 18:29:40,334 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-12 18:29:40,343 WARN L224 ceAbstractionStarter]: Timeout [2021-03-12 18:29:40,343 INFO L202 PluginConnector]: Adding new model threaded-sum-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 06:29:40 BasicIcfg [2021-03-12 18:29:40,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 18:29:40,344 INFO L168 Benchmark]: Toolchain (without parser) took 858092.88 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 236.6 MB in the beginning and 288.5 MB in the end (delta: -51.9 MB). Peak memory consumption was 429.7 MB. Max. memory is 16.0 GB. [2021-03-12 18:29:40,344 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 168.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 18:29:40,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.38 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 18:29:40,344 INFO L168 Benchmark]: Boogie Preprocessor took 10.05 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 836.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 18:29:40,344 INFO L168 Benchmark]: RCFGBuilder took 256.57 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 235.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.0 GB. [2021-03-12 18:29:40,344 INFO L168 Benchmark]: TraceAbstraction took 857800.02 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 235.6 MB in the beginning and 288.5 MB in the end (delta: -52.9 MB). Peak memory consumption was 428.2 MB. Max. memory is 16.0 GB. [2021-03-12 18:29:40,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.7 MB in the end (delta: 168.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.38 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.05 ms. Allocated memory is still 255.9 MB. Free memory was 234.7 MB in the beginning and 233.8 MB in the end (delta: 836.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 256.57 ms. Allocated memory is still 255.9 MB. Free memory was 233.6 MB in the beginning and 235.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 857800.02 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 235.6 MB in the beginning and 288.5 MB in the end (delta: -52.9 MB). Peak memory consumption was 428.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8285, positive: 5423, positive conditional: 5423, positive unconditional: 0, negative: 2862, negative conditional: 2862, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 5535, positive: 5423, positive conditional: 5423, positive unconditional: 0, negative: 112, negative conditional: 112, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 5535, positive: 3670, positive conditional: 0, positive unconditional: 3670, negative: 1865, negative conditional: 0, negative unconditional: 1865, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5535, positive: 3656, positive conditional: 0, positive unconditional: 3656, negative: 1862, negative conditional: 0, negative unconditional: 1862, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765, SemanticConditionEliminator.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8026, positive: 1753, positive conditional: 1753, positive unconditional: 0, negative: 6273, negative conditional: 4508, negative unconditional: 1765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 45, positive conditional: 43, positive unconditional: 2, negative: 39, negative conditional: 36, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 366, positive: 199, positive conditional: 165, positive unconditional: 34, negative: 166, negative conditional: 142, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8026, positive: 1710, positive conditional: 1710, positive unconditional: 0, negative: 6237, negative conditional: 4472, negative unconditional: 1765, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 57, Positive conditional cache size: 43, Positive unconditional cache size: 14, Negative cache size: 39, Negative conditional cache size: 36, Negative unconditional cache size: 3, Eliminated conditions: 1765 ], Maximal queried relation: 19, Independence queries for same thread: 2750 - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 55). Cancelled while PartialOrderCegarLoop was analyzing trace of length 290 with TraceHistMax 56,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 94 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 857751.0ms, OverallIterations: 20, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.8ms, PartialOrderReductionTime: 237327.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 193.3ms SsaConstructionTime, 1145.3ms SatisfiabilityAnalysisTime, 594072.6ms InterpolantComputationTime, 5330 NumberOfCodeBlocks, 5330 NumberOfCodeBlocksAsserted, 354 NumberOfCheckSat, 5292 ConstructedInterpolants, 0 QuantifiedInterpolants, 131119 SizeOfPredicates, 86 NumberOfNonLiveVariables, 3855 ConjunctsInSsa, 2549 ConjunctsInUnsatCore, 38 InterpolantComputations, 0 PerfectInterpolantSequences, 10861/83706 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown